Linux is an open-source and free operating system, which runs on many computers, servers and device. A Linux Developer is any tech professional who specializes in developing programs and applications that run on the Linux operating system. They also help install, troubleshoot and fix any issues related to the Linux OS, allowing their clients to use it effectively.

Linux Developers are highly knowledgeable in this field and can provide their clients with various services ranging from installation, selection and acquisition of Linux-based applications, to helping set up a computer or server infrastructure. Their expertise would be beneficial for any business that wants to employ the use of both Linux-based applications and environments.

Here's some projects that our expert Linux Developers made real:

  • Designing creative solutions for GUI elements for user interactions
  • Optimizing server performance and reliability
  • Developing solutions for deploying software within a scalable environment
  • Deploying robust backups and security measures
  • Enhancing the structure of web applications under the Linux system
  • Writing code mapping APIs between multiple operating systems
  • Building desktop applications to execute specific commands

Our expert linux developers can achieve all this, as well as any other custom tasks that may be required. At Freelancer.com you’ll find highly skilled professionals ready make your idea reality. If you have a project you need help with or just want an experienced developer to lend a helping hand with technology needs, post your project today!

From 204,082 reviews, clients rate our Linux Developers 4.9 out of 5 stars.
Hire Linux Developers

Linux is an open-source and free operating system, which runs on many computers, servers and device. A Linux Developer is any tech professional who specializes in developing programs and applications that run on the Linux operating system. They also help install, troubleshoot and fix any issues related to the Linux OS, allowing their clients to use it effectively.

Linux Developers are highly knowledgeable in this field and can provide their clients with various services ranging from installation, selection and acquisition of Linux-based applications, to helping set up a computer or server infrastructure. Their expertise would be beneficial for any business that wants to employ the use of both Linux-based applications and environments.

Here's some projects that our expert Linux Developers made real:

  • Designing creative solutions for GUI elements for user interactions
  • Optimizing server performance and reliability
  • Developing solutions for deploying software within a scalable environment
  • Deploying robust backups and security measures
  • Enhancing the structure of web applications under the Linux system
  • Writing code mapping APIs between multiple operating systems
  • Building desktop applications to execute specific commands

Our expert linux developers can achieve all this, as well as any other custom tasks that may be required. At Freelancer.com you’ll find highly skilled professionals ready make your idea reality. If you have a project you need help with or just want an experienced developer to lend a helping hand with technology needs, post your project today!

From 204,082 reviews, clients rate our Linux Developers 4.9 out of 5 stars.
Hire Linux Developers

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    deploying the official open-source backend components and integrating them with various third-party services for full functionality. • mainly our requirements our own infrastructure Self-Hosted with Custom Instance public rebranded messaging app. • Only people who have previously studied and worked on production-style Signal server architecture and structure should communicate • Those who have not previously studied and worked on production-style Signal server architecture and structure should not submit bid proposals. • The official source code is open-source and available on GitHub. • You only need to deploy and configure the Signal server only. The process requires significant technical expertise in server management, Java, database administrati...

    $116 Average bid
    $116 Avg Bid
    54 bids

    Job Description: QA Engineer – Cybersecurity Product (Reverse Proxy Server) Position Title: QA Engineer Location: Mumbai, India (Hybrid/Remote options available) Domain: Cybersecurity – Reverse Proxy Server Development and enterprise data security while using the cloud services Framework: Agile/Scrum Role Overview We are seeking a detail-oriented and security-aware QA Engineer to ensure the quality, reliability, and resilience of a cloud-native reverse proxy server. You will be responsible for designing and executing test plans, automating test cases, and validating security features in a fast-paced Agile environment. Your work will directly contribute to the robustness of a critical cybersecurity product. Key Responsibilities • Design, develop, and execute manual...

    $328 Average bid
    $328 Avg Bid
    10 bids

    I’ve built a custom web application and it’s almost ready for production. Before the public rollout, I want a rigorous penetration test that will expose any weakness and help tighten every layer of security. The assessment must be hands-on and realistic, covering the full stack rather than a purely theoretical review. Scope My priorities are clear: • Code review – comb through the source for injection points, authentication flaws, insecure dependencies, and logic errors. • Network-level probing – map open ports, misconfigured firewalls, and potential lateral-movement paths. • Server configuration – evaluate patch levels, TLS setup, permissions, and hardening of the underlying OS and web server. Primary Goal The sole purpose is to imp...

    $1077 Average bid
    $1077 Avg Bid
    14 bids

    I need a capable network engineer who can spend a full working day at my client’s premises acting as our hands-on field resource while my remote team carries out all configuration tasks. Your focus will be purely physical: rack-mounting the servers, switches, and firewalls; dressing and labeling power and Ethernet runs; attaching console and management leads; then powering everything up so we can reach it remotely. Once each device is live you’ll run quick sanity checks—simple pings, basic connectivity, and a printer test—to confirm the build is progressing as planned. Desktops and laptops must join the network without issue, and at least one printer needs to produce a clean test page before you leave. I’ll supply a clear step-by-step build guide and remain ...

    $38 / hr Average bid
    $38 / hr Avg Bid
    4 bids

    I need a developer to create a dedicated communication-management tool that runs natively on Linux. The core requirement is the ability to establish, track, and gracefully close sessions over both TCP/IP and UDP. All connection handling, queueing, and basic error management should happen inside the tool so that client applications can speak through a clean, well-documented API instead of implementing their own socket logic. This tool must be system centric installed on our Linux server Here is what I have in mind: • Command-line operation is fine for the first iteration, but please structure the code so a lightweight GUI or web dashboard could be bolted on later. • Clear logging of connection events, dropped packets, and throughput statistics is essential—I’ll be p...

    $18 / hr Average bid
    $18 / hr Avg Bid
    17 bids

    Cloud Security Specialist – Immediate Infrastructure Hardening (Short Term) Project Overview Duration: 3 to 5 days Location: Remote Start: Immediate A healthcare technology platform requires a Cloud Security Specialist to implement quick security improvements identified in a recent penetration assessment. This is a focused, short-term assignment aimed at reducing immediate attack surface exposure at the infrastructure layer. Scope of Work All listed tasks must be completed. 1. Server Version Disclosure Prevention Remove server and framework version information from HTTP responses. Responsibilities Configure AWS Application Load Balancer to remove server headers Update CloudFront response headers policy Disable X Powered By headers in Customize error responses to prevent ve...

    $175 Average bid
    $175 Avg Bid
    14 bids

    Cloud Security Specialist – Immediate Infrastructure Hardening (Short Term) Project Overview Duration: 3 to 5 days Location: Remote Start: Immediate A healthcare technology platform requires a Cloud Security Specialist to implement quick security improvements identified in a recent penetration assessment. This is a focused, short-term assignment aimed at reducing immediate attack surface exposure at the infrastructure layer. Scope of Work All listed tasks must be completed. 1. Server Version Disclosure Prevention Remove server and framework version information from HTTP responses. Responsibilities Configure AWS Application Load Balancer to remove server headers Update CloudFront response headers policy Disable X Powered By headers in Customize error responses to prevent ve...

    $98 Average bid
    $98 Avg Bid
    14 bids

    We are seeking a reliable IT team to support our medical centre with comprehensive, end-to-end IT services. This would include setting up, managing, maintaining, and regularly updating all aspects of our IT infrastructure, including networks, servers (on-site and / or cloud-based), workstations, computers, printers, and all connectivity systems. We require ongoing management of firewalls, cybersecurity protections, antivirus and anti-malware systems, data encryption, secure remote access, backups and disaster recovery solutions, and proactive monitoring to prevent downtime. Support would also cover software installation and updates (including clinical and practice management systems - Best Practice), email systems, cloud services, data storage, compliance with healthcare data protection re...

    $502 Average bid
    $502 Avg Bid
    23 bids

    We are seeking a reliable IT team to support our medical centre with comprehensive, end-to-end IT services. This would include setting up, managing, maintaining, and regularly updating all aspects of our IT infrastructure, including networks, servers (on-site and / or cloud-based), workstations, computers, printers, and all connectivity systems. We require ongoing management of firewalls, cybersecurity protections, antivirus and anti-malware systems, data encryption, secure remote access, backups and disaster recovery solutions, and proactive monitoring to prevent downtime. Support would also cover software installation and updates (including clinical and practice management systems - Best Practice), email systems, cloud services, data storage, compliance with healthcare data protection re...

    $476 Average bid
    $476 Avg Bid
    32 bids

    Project Title Urgent Fix: Sendy + Amazon SES “Sending stuck” on Contabo VPS (Cloudflare DNS/WAF) + Secure Cleanup Background We run a self-hosted Sendy installation on a Contabo VPS (Ubuntu) using Amazon SES (API). DNS/proxy/WAF is managed via Cloudflare. Recently, campaigns get stuck in “Sending” and emails are not being delivered (or campaigns remain queued). This setup worked correctly until recently. Tech Stack VPS: Contabo (Ubuntu) App: Sendy (self-hosted) Email: Amazon SES (us-east-1 / N. Virginia) DNS/WAF/Proxy: Cloudflare Web server: Unknown (Nginx or Apache) — must confirm during diagnosis PHP + MySQL/MariaDB Goal Restore normal sending and ensure the system is stable, monitorable, and secure. Provide documentation of what was changed. Sc...

    $163 Average bid
    Urgent
    $163 Avg Bid
    30 bids

    - **Core Architecture:** Spring Cloud + Kafka + Hadoop + Python Automation,This project requires a certain level of technical expertise.

    $17 Average bid
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    14 bids
    Python JSON Noise Cleanup
    6 days left
    Verified

    I have a collection of JSON files that need to be sanitized. The main issues are duplicate entries and occasional formatting problems that break downstream tooling. A record is a duplicate when the value of its ID field matches an earlier one; keep the first instance and discard the rest. After deduplication, the script must also detect and correct—or clearly flag—any invalid data formats so that every file remains valid JSON and passes a simple load/parse test. Please deliver a self-contained Python script (Python 3.x) that: • Accepts a folder path or list of files as input and processes them in-place or to a specified output directory. • Removes duplicates based solely on the ID field. • Validates each object’s structure, fixing minor issues such as...

    $138 Average bid
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    103 bids
    Python RSSI Modbus Script
    6 days left
    Verified

    I’m running an InHand IG502 cellular gateway and need a focused Python add-on that exposes the unit’s current RSSI (raw dBm) as a holding register inside the built-in Modbus server. The immediate aim is simply to monitor signal quality; once the value is available we will pass it through our existing RS-485 link into the DNP3 layer of the external SCADA. Key points you should know while coding: • Device: InHand IG502 (OpenWrt-based, Python 3 available). • Output format: raw signal strength value, no scaling or percentage. • Register must be readable via Modbus-TCP and Modbus-RTU so I can map it downstream. Byte order can be little-endian; just document what you use. • Communication onward to DNP3 happens on my side, so the script only has to populate ...

    $189 Average bid
    $189 Avg Bid
    110 bids
    Fix DNS Resolution Failure
    6 days left
    Verified

    Hi, I have a domain for which I am using hostgator as a hosting provider, I want to change the hosting to my dedicated server. My domain registrar updated the SOA to my server IP but the domain is not resolving. Need urgent help. Thanks VIdhya Sagar dixit

    $13 / hr Average bid
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    40 bids

    I’ve just finished deploying a new Android mobile application and everything appeared to go smoothly—until I tried to launch it. Right after installation the app attempts to talk to the backend and immediately throws a server error. The APK itself installs without complaint; the trouble starts only once the first request is sent. I need someone to dive in, locate the root cause on the server side, and implement a clean fix so the app can connect reliably every time. Access to the server, source code, and crash logs is ready for you as soon as we agree to move forward. Please bring experience with common Android back-end stacks (Node, PHP, Java, or similar) and a methodical debugging approach. Once resolved, I’ll confirm the build installs and runs error-free on multiple ...

    $7 Average bid
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    8 bids
    Ithu Namma Radio
    6 days left

    I’ve just finished deploying a new Android mobile application and everything appeared to go smoothly—until I tried to launch it. Right after installation the app attempts to talk to the backend and immediately throws a server error. The APK itself installs without complaint; the trouble starts only once the first request is sent. I need someone to dive in, locate the root cause on the server side, and implement a clean fix so the app can connect reliably every time. Access to the server, source code, and crash logs is ready for you as soon as we agree to move forward. Please bring experience with common Android back-end stacks (Node, PHP, Java, or similar) and a methodical debugging approach. Once resolved, I’ll confirm the build installs and runs error-free on multiple ...

    $8 Average bid
    $8 Avg Bid
    11 bids

    My WordPress install has been breached. I am seeing spam posts and pages sprinkled throughout the site and several malicious links have appeared in places I never touched. The attacker also managed to get into the main admin account, so I no longer trust any credentials or core files. I need a specialist who can: • Eradicate every spam post, page, and injected malicious link without harming legitimate content. • Audit and remove any backdoors, rogue users, or altered core, theme, and plugin files. • Restore secure admin access, forcing password resets and re-generating salts. • Patch WordPress, themes, and plugins to the latest stable versions and harden the installation (file permissions, disallowed editing, firewall rules, etc.). • Provide a brief hand-...

    $134 Average bid
    $134 Avg Bid
    61 bids
    Optimize Python Trading Bot
    6 days left
    Verified

    I have a live-trading bot written entirely in Python that connects to the platform through their REST and WebSocket APIs. The strategy logic itself is sound, but under load the bot slows, misses price ticks and occasionally skips orders, so I need a clean performance tune-up and code review. Your task is to comb through the existing modules—order manager, data streamer, and strategy loop—identify the bottlenecks, then fix or refactor as needed so the bot reacts in real time without dropping trades. Expect to work with async I/O, websockets, pandas dataframes and a small SQLite trade log. Deliverables • Refactored, well-commented Python code with any slow sections profiled and optimised • A brief report that explains each change, shows before/after latency b...

    $172 Average bid
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    123 bids

    The immediate goal is to bring fully-functioning validator and miner nodes for both Gonka AI and Bittensor online, running on rented H100 GPU servers. I already have the hardware allocated and wallets ready; what I need is an engineer who can take the nodes from zero to profitable operation and then keep them humming. Key tasks • Provision and secure each H100 instance, configure networking, firewalls, SSH keys and wallets • Containerise the stacks with Docker (Kubernetes or Podman are possible later, but Docker is fine for the first iteration) • Tune CUDA-level settings so every GPU cycle counts and rewards are maximised • Build simple Bash or Python scripts that monitor logs, restart on failure and push basic alerts • Produce step-by-step documentation...

    $501 Average bid
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    55 bids

    We have an existing 6-axis driver for our plotter. We need to build a simple web interface where users can upload pictures for the plotter to draw. The system uses stepper motors with encoders and limit switches for XYZ axis. Key Requirements: - Web interface for image upload - Image-to-G-code conversion pipeline - Plotter communication and control - Support for stepper motors with encoders and limit switches - Testing and final tuning Skills Required: Python, Embedded Linux, C#, Firmware Development This is an ongoing project, estimated 1-3 months.

    $43 / hr Average bid
    $43 / hr Avg Bid
    108 bids

    I need a reliable script that logs into Placementindia and pushes my vacancy details without any manual input. The tool should store template data, fill every required field, submit the form, and then confirm success so I can see at a glance what went live. Inside a small, browser-based dashboard I want two key abilities: • schedule automation so I can decide the exact days and times each role goes out • one-click “auto post” that instantly publishes a job when I hit the button The posting frequency isn’t fixed; some days I may blast several openings, other weeks none at all, so the scheduler has to respect whatever plan I set. Use whichever method makes the process most stable—headless browser automation (Puppeteer, Playwright, Selenium) or direc...

    $232 Average bid
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    42 bids

    Looking for Senior SysAdmin / DevOps (WordPress Infrastructure Issue) We’re currently looking for experienced: • Linux System Administrators • DevOps Engineers • Server / Infrastructure Engineers • Performance Tuning Specialists To help diagnose and stabilize a high-load WordPress environment. CURRENT SERVER STACK • Plesk 18 • Nginx • PHP-FPM 8.2 • MariaDB 10.11 (Thread Pool enabled) • Redis (Object Cache) • Cloudflare (WAF + proxy) WORDPRESS SETUP • Elementor + Pro (heavy usage) • Dynamic meta-heavy content (large wp_postmeta usage) • Gravity Forms • Unlimited Elements • Action Scheduler background jobs • High admin/editor activity • Frequent admin-ajax calls ISSUES WE&rsqu...

    $141 Average bid
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    73 bids

    I’m running Ubuntu Server 22.04 on a Hostinger VPS and need a clean, dependable way to spin up Cal.com. Docker is not installed yet, so the first step is to get the latest Docker Engine and Docker Compose up and running with their default settings. Once Docker is active, I’d like you to: • Pull the official image (or build from source if that is the current best practice). • Launch the container so it auto-restarts and survives server reboots. • Expose the required ports and, if it simplifies access, wire it to an Nginx reverse proxy so the calendar sits behind my existing domain or a sub-domain. • Hand over the exact commands, configuration files, and environment variables you used, commented clearly so I can reproduce or tweak them later. I&rsquo...

    $124 Average bid
    $124 Avg Bid
    54 bids
    PowerMTA 6.0r2 Setup Needed
    5 days left
    Verified

    I need help with the installation and configuration of PowerMTA 6.0r2. Ideal skills and experience: - Expertise in PowerMTA - Strong background in email server setup - Familiarity with email delivery protocols Please provide a detailed bid including your experience and timeline.

    $41 Average bid
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    8 bids

    Your work will include: • Installing the full list of packages I provide. • Configuring each component so paths, environment variables, services, and firewalls line

    $142 Average bid
    $142 Avg Bid
    53 bids

    I need a developer to create a dedicated communication-management tool that runs natively on Linux. The core requirement is the ability to establish, track, and gracefully close sessions over both TCP/IP and UDP. All connection handling, queueing, and basic error management should happen inside the tool so that client applications can speak through a clean, well-documented API instead of implementing their own socket logic. This tool must be system centric installed on our Linux server Here is what I have in mind: • Command-line operation is fine for the first iteration, but please structure the code so a lightweight GUI or web dashboard could be bolted on later. • Clear logging of connection events, dropped packets, and throughput statistics is essential—I’ll be p...

    $2003 Average bid
    $2003 Avg Bid
    21 bids
    $27 Avg Bid
    29 bids
    X-ray Image Type Classifier
    5 days left
    Verified

    I have a collection of X-ray studies and I need a robust deep-learning model that can look at each image and instantly tell me which predefined category it belongs to (e.g., chest PA vs. chest lateral, cervical spine, hand, etc.). The job is strictly about classifying the type of X-ray, not diagnosing any pathology. Here is what I already have and what I expect from you: • A curated folder structure with several thousand labelled PNG and DICOM files that you can download from my secure server. • A preference for Python with either PyTorch or TensorFlow/Keras—use whichever framework you feel will achieve the best accuracy and fastest inference on a modern GPU. • Clean, reproducible code (Jupyter notebook or script) plus a short README that explains environment se...

    $584 Average bid
    $584 Avg Bid
    126 bids
    Open Source Linux Fax Server
    5 days left
    Verified

    I need an open-source fax solution deployed on a Linux host so I can both send and receive faxes from the network. Every incoming fax must be archived automatically as a PDF, and all administration—including queue monitoring, user setup, and log review—has to be handled through a clean, browser-based interface. Any stack that meets those points is fine Like ICTFax as long as it runs on a recent Debian/Ubuntu or CentOS release with no licensing fees. I will supply SSH access to a fresh VM and either a Class 1/2 USB modem or a T.38 SIP trunk you can register against. Fax server installation & system hardening SIP trunk / FoIP gateway integration Incoming & outgoing fax routing and testing Web-based fax send, receive & management Automatic PDF conversion for all...

    $211 Average bid
    $211 Avg Bid
    27 bids

    I want the entire site moved to my HostGator account and running exactly as it does now. The project is built on Node, so you will need to install and configure the correct Node version over SSH, copy the current codebase, restore all environment variables, and make sure every existing API integration is fully operational after the move. You will have SSH access to the new server as soon as we start. Once inside, you can choose the quickest route—npm, yarn, PM2, Git pull, or any workflow you prefer—as long as the final result is a clean, reproducible deployment that survives a reboot and can be updated easily in the future. Deliverables • Node environment installed and verified on HostGator • Complete site migrated, including assets and database (if applicable)...

    $29 Average bid
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    74 bids

    # Embedded Linux System – Technical Specification ## Custom Hardware Platform based on Raspberry Pi CM4 --- ## 1. Project Overview This project is based on an **existing, functional custom hardware platform** using a **Raspberry Pi Compute Module 4 (CM4)**. A standard Raspberry Pi OS is already running on the device. The goal of this project is **not to create a prototype**, but to bring an **existing custom CM4-based hardware platform into a professionally engineered, maintainable, and reproducible software state**, suitable for industrial deployment and scaling. --- ## 2. Project Goals The primary project objective is to **bring a custom hardware platform with a Raspberry Pi CM4 module into a robust, industrial-grade software state**, including: - a clean and well-docu...

    $637 Average bid
    NDA
    $637 Avg Bid
    46 bids
    Diagnose Web CPU Overload
    5 days left
    Verified

    Hi, - CPU: AMD EPYC 7571 (8 core(s)) - Version: Plesk Obsidian v18.0.75_build1800260102.11 os_RedHat el8 - Operating System: AlmaLinux 8.10 (Cerulean Leopard) - Amazon Cloud Server - Currently we have 10 domains created in Plesk - Website is secured by - Wordpress, theme and plugins are up-to-date The problem: the CPU at a random time can spike and reaches up to 98% this is an example - We have reported this issue to our IT team multiple times, but we always get back to the same reply "check your plugins code and fix slow queries", and this is not possible, we are using the same WooCommerce plugin and them across many other domains and we dont have any other issues on our other servers. - From my understanding changes were applied in php-fpm settings - I contacted sucuri and...

    $28 / hr Average bid
    $28 / hr Avg Bid
    135 bids

    We are looking for an experienced DevOps / GitLab CI engineer to design and implement a robust CI/CD setup for a Docker-based application consisting of a backend and a frontend, both living in the same GitLab repository. The goal of this project is to establish a clean, developer-friendly workflow that supports: Automatic internal test deployments (review apps) for feature branches Automated production deployments to a public VPS when code is merged to main This setup should follow GitLab CI best practices, especially GitLab Environments and Review Apps, and be simple for developers to use without requiring manual server access

    $180 Average bid
    $180 Avg Bid
    56 bids

    I want to build a compact, two-way Bluetooth audio interface for a HAM radio. The core goal is a 2-way bridge between the radio and a realtime camera running on a linux board via buletooth. Digital or analog volume adjustment is needed Device must be battery and/or 12V DC operated, with DC12V charging battery if present What I need: • Full-duplex transmit and receive so both the radio’s microphone and speaker lines travel over Bluetooth. • A design that plays nicely with typical HAM radio mic/headphone levels. • Optional Radio PTT Sense to mute microphone input if PTT button not pressed • Stable pairing, clear voice quality, and minimal latency. Please provide: 1. Schematic and bill of materials (module choice is up to you; CSR, ESP32, or similar is fine). 2...

    $254 Average bid
    $254 Avg Bid
    44 bids

    I need a proven Airtel Black SIP configuration running on my Ubuntu machine and handled through Linphone. The goal is a clean, documented initial setup—no trial-and-error learning on my system, please. If you have already registered an Airtel SIP trunk on Linux, you’ll know the exact registrar format, the unusual port mapping Airtel uses, and the little tweaks that keep audio flowing both ways behind NAT. Here’s the workflow I’m expecting: • Install or verify the latest Linphone and any required dependencies on my Ubuntu box. • Register the Airtel Black SIP account, applying the correct proxy, authentication string, and codec priorities. • Prove the setup with at least one inbound and one outbound call (I can join you on a test call). •...

    $34 Average bid
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    3 bids

    I have completed a desktop application with Lovble IA and pushed the code to a GitHub repository. Now I need it running smoothly on my own Linux server. Your job is to pull the repo, set up whatever build or runtime environment Lovble IA requires, resolve any package or dependency issues, and make sure the executable starts up reliably (ideally as a service so it can restart after reboots). The repository is ready for cloning; you will receive access as soon as we start. I expect the finished application to launch without errors from the server’s command line or through an appropriate display manager, and I’d like brief notes on every step you take so I can replicate or update the deployment later. Deliverables • Working installation of the Lovble IA desktop app on my Li...

    $40 Average bid
    $40 Avg Bid
    36 bids

    JD – ROS Engineer Job Summary We are looking for a Software Engineer with strong experience in ROS (Robot Operating System) and C# to design, develop, and maintain robotic and automation software solutions. The role involves working on robot control, system integration, and real-time applications while collaborating closely with hardware, controls, and systems teams. ________________________________________ Key Responsibilities • Design, develop, and maintain robotic applications using ROS • Develop and support backend and application logic using C# • Integrate ROS-based systems with higher-level applications and user interfaces • Implement and maintain robot control, navigation, and communication nodes • Work on sensor integration, data handling, and real-t...

    $11 / hr Average bid
    $11 / hr Avg Bid
    17 bids

    Part-Time Technical Tester (Windows/Linux/Ubuntu) – Screen Recording + Voice We are hiring a tech-savvy tester based in India to test our Kinivo Bluetooth USB adapters (BTD500, BTD400, BTD-LR-530) across Windows, Linux, and Ubuntu. The role involves checking compatibility, identifying whether drivers are required, installing drivers when needed, and clearly recording and explaining the entire process through screen recordings with voice narration. We’re looking for someone comfortable troubleshooting systems who can communicate clearly in fluent English and present steps professionally on video. Responsibilities: - Test adapters on Windows, Linux, and Ubuntu - Verify plug-and-play support, pairing, and stability - Install drivers (if required) and explain the process - Record...

    $140 Average bid
    Local
    $140 Avg Bid
    1 bids

    We are looking for an experienced Kubernetes Cluster Management Expert to manage and host Business-to-Customer (B2C) applications in production environments. This opportunity is strictly for individual professionals. Companies, agencies, or small firms should not apply. Key Responsibilities Design, deploy, manage, and maintain Kubernetes clusters Manage hosting of B2C / customer-facing applications with high availability Monitor cluster health, performance, and scalability Implement auto-scaling, load balancing, and zero-downtime deployments Manage CI/CD-based application releases Ensure security best practices (RBAC, secrets, network policies) Troubleshoot and resolve production issues Required Skills & Expertise Strong hands-on experience with Kubernetes (K8s) cluster manage...

    $6 / hr Average bid
    $6 / hr Avg Bid
    22 bids

    I’m ready to move our Kubernetes workloads on AWS into a fully automated production-grade release flow and need an expert who can stand up Spinnaker via the Spinnaker Operator to make that happen. Here’s what I’m after: • Install and configure the Spinnaker Operator on an existing AWS-hosted Kubernetes cluster, ensuring all CRDs, accounts and namespaces are in place. • Define a clean, repeatable deployment pipeline that promotes images straight to production once tests pass, complete with rollback logic and automated approvals where necessary. • Wire Spinnaker to the AWS services it needs (ECR, IAM roles, load balancer annotations, etc.) so artefacts and infrastructure are discovered without manual steps. • Document the setup: Helm/​kubectl...

    $175 Average bid
    $175 Avg Bid
    73 bids

    Heavy bursts of visitors are knocking my landing page offline. Each spike fills the nginx error log with 2026/02/09 20:32:47 [error] 949181#949181: *409046 connect() to unix:/var/run/php/ failed (11: Resource temporarily unavailable) while connecting to upstream, client: , server: , request: "GET /pW321xkxUy/?zoneid=9843359 HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/:", host: "" I’ve confirmed the trigger is a high number of simultaneous users, not bots or unusual request types. What I need—urgently—is a Linux-savvy engineer who can stabilise the stack so the site stays up no matter how fast traffic arrives. Stability and uptime are my top priorities; raw speed tweaks are welcome only if they don’t compromise resilience. You...

    $133 Average bid
    $133 Avg Bid
    73 bids

    I need help installing Isaac Sim and Isaac Lab on Ubuntu for robotics simulation. Requirements: - Set up dependencies - Configure settings - Troubleshoot any errors You can use the latest or whatever works best versions. Ideal Skills and Experience: - Proficiency in Ubuntu - Experience with Isaac Sim and Isaac Lab - Strong problem-solving skills

    $23 Average bid
    $23 Avg Bid
    4 bids

    My PHP 8.x application has picked up a fair amount of dead weight—unused files, legacy snippets, and the odd warning that only shows up in the logs. I need a developer who can open the hood, keep what truly matters, and scrap the rest while making sure everything that stays runs flawlessly. Here’s what I’m asking you to do: • Read the entire codebase, identify the core file(s), and strip away anything that isn’t required. • Hunt down every notice, warning, or fatal error and resolve it so the script executes cleanly on PHP 8.x with error reporting turned up. • Where you see obvious performance wins—query consolidation, tighter loops, lighter includes—go ahead and tune them. • I’m not entirely sure which smaller features ...

    $16 Average bid
    $16 Avg Bid
    16 bids
    Moodle Installation on Plesk
    4 days left
    Verified

    My Plesk server is already up and running and the subdomain that will host the site is live. I now need the latest stable release of Moodle installed and fully operational on that space. Here’s what I expect delivered: • Deploy the current stable Moodle package under the existing subdomain • Create and link a new database through Plesk • Enable all required PHP extensions and set the correct file permissions • Configure the Moodle cron job from the Plesk scheduler • Hand me the admin login, plus a short note outlining anything I should know for future upgrades and backups Once the site loads without errors and the cron is firing, the job is done. If you have experience doing this in Plesk, it should be a quick win for both of us. Just install plesk...

    $32 Average bid
    $32 Avg Bid
    52 bids

    I’m putting together a new Raspberry Pi build that will run Ubuntu rather than the standard Raspberry Pi OS. My own experience level is advanced, but I’d like another seasoned set of eyes to speed things up and help polish the system. The job focuses on: • Reviewing my current headless Ubuntu image for best-practice partitioning, bootloader tweaks, and basic hardening • Tracking down and fixing the boot-time warnings that surface in dmesg and journalctl • Suggesting and, where sensible, applying performance optimisations—overclock settings, thermal management, swap behaviour, I/O tweaks • Writing or refining a few clean Bash/Python scripts for unattended updates and off-device backups We’ll work entirely over SSH, so no hardware shipping...

    $170 Average bid
    $170 Avg Bid
    64 bids

    Senior Full-Stack Developer (React/Node.js) - Base44 & AI Specialist Job Description: We are seeking a high-level Full-Stack Developer to resolve a series of Critical and High Priority bugs within our business management platform, CompanySync. Our application is built and hosted on the Base44 platform. You will be working directly within the Base44 editor to debug React components, Node.js serverless functions, and complex AI integrations. Critical Priorities: Fix AI Voice Interruption (BUG-001): Resolve issues with Gemini Live Voice where interruption and Voice Activity Detection (VAD) are failing. Twilio Inbound/Outbound (BUG-013/014): Fix TwiML handlers for inbound AI voice calls and SMS responses for our virtual assistants. Google Calendar Two-Way Sync (BUG-003): Troubleshoot an...

    $207 Average bid
    $207 Avg Bid
    134 bids

    We are seeking an experienced ClawdBot/OpenClaw practitioner who can also handle AWS setup to help stand up a Clawd-based CloudBot environment on Amazon AWS for two users. This is a turn-key engagement for someone who already understands how ClawdBot /OpenClaw works in practice - including setup, security boundaries, and safe configuration. AWS is the infrastructure layer, but CloudBot expertise is the priority. Scope includes: • Deploying OpenClaw (Docker preferred) on a single, cost-efficient AWS instance. • Configuring two user accounts with proper isolation and access control. • Setting up one simple interaction method (web UI or Telegram). • Advising on best practices for light integrations (email/calendar) and what not to overbuild. • A short live walkthrou...

    $1767 Average bid
    $1767 Avg Bid
    23 bids
    Linux Desktop App Bug Patch
    4 days left
    Verified

    Our in-house desktop application for Linux has started throwing an error that disrupts a critical workflow. I already have the full source code and a reproducible test case; what I now need is a clean, well-documented bug-fix patch that eliminates the issue without introducing regressions. Here is how I see the collaboration: • You clone the repo (Git) and replicate the bug on any mainstream Linux distro. • Diagnose the root cause, write the fix, and submit it as a unified diff/patch file plus the updated build. • Prove the fix with the supplied test case and a brief regression checklist so I can validate it quickly on my side. • Keep comments concise and follow the existing coding style; no sweeping refactors—just the focused bug fix. Once I verify that ...

    $304 Average bid
    $304 Avg Bid
    14 bids

    I already have hosting on Hostinger and now want to spin up Clawdbot, wire it to WhatsApp, and turn it into a real-time productivity assistant. Your job starts with a clean, secure installation of Clawdbot on my Hostinger account. Once it is running, I need the bot authenticated to my WhatsApp Business number so I can message it directly. After the connection is live, please configure the bot to: • Draft notes on demand • Compose professional emails from prompts I’ll send over chat • Organize and store documents—specifically text files, spreadsheets, and presentations—so I can retrieve or update them through simple WhatsApp commands I’ll supply API keys and hosting credentials as soon as we agree on the approach. Everything should be containe...

    $149 Average bid
    $149 Avg Bid
    52 bids

    I’m looking for a small, no-frills tool that I can spin up on a Linux VPS and use to blast out a single message to every recipient listed in a CSV file. The workflow is simple: I upload the CSV, paste or type the message, press send, and watch the log as each username or user_id is processed. Core expectations • Runs headless on common Linux distros (Ubuntu/Debian preferred) • Leverages the unofficial Telegram API • Accepts CSV upload (one column of @usernames or ids) and sends the same text to each entry in sequence • Streams progress to stdout or a minimal web dashboard, then saves a completion report (sent / failed) to CSV or JSON Deliverables 1. Clean, well-commented source code 2. Step-by-step setup notes I can follow on a fresh server (Dockerf...

    $57 Average bid
    $57 Avg Bid
    17 bids

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