The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Debugging is the process of finding and resolving errors or defects in a system, application, or computer code. It is an essential tool to ensure the development process runs smoothly and efficiently. A Debugging Expert has many years of experience working with debugging, troubleshooting, and software testing. They use a variety of tools and techniques to identify errors. It can help optimize your system, find any underlying issues, and enhance your overall user experience.
The expertise that our Debugging Expert can offer you is invaluable:
- Help debug existing applications and making them more efficient
- Troubleshoot issues within applications
- Resolve technical problems with code optimization
- Identify any potential security vulnerabilities
- Identify and resolve potential bug issues
Here's some projects that our Debugging Experts made real:
At Freelancer.com our expert Debugging Expert has consistently delivered excellent results to many satisfied clients. Our dedication to proactively finding potential problems is why so many companies choose us. If you're looking for a reliable professional to streamline your applications or fix errors within them then invite you to post your project and hire a Debugging Expert on Freelancer.com today!
From 37,071 reviews, clients rate our Debugging Experts 4.9 out of 5 stars.Debugging is the process of finding and resolving errors or defects in a system, application, or computer code. It is an essential tool to ensure the development process runs smoothly and efficiently. A Debugging Expert has many years of experience working with debugging, troubleshooting, and software testing. They use a variety of tools and techniques to identify errors. It can help optimize your system, find any underlying issues, and enhance your overall user experience.
The expertise that our Debugging Expert can offer you is invaluable:
- Help debug existing applications and making them more efficient
- Troubleshoot issues within applications
- Resolve technical problems with code optimization
- Identify any potential security vulnerabilities
- Identify and resolve potential bug issues
Here's some projects that our Debugging Experts made real:
At Freelancer.com our expert Debugging Expert has consistently delivered excellent results to many satisfied clients. Our dedication to proactively finding potential problems is why so many companies choose us. If you're looking for a reliable professional to streamline your applications or fix errors within them then invite you to post your project and hire a Debugging Expert on Freelancer.com today!
From 37,071 reviews, clients rate our Debugging Experts 4.9 out of 5 stars.The ad network is already wired into my mobile app, yet the ad simply never shows up. Integration credentials and existing SDK versions are in place, so the job is all about pinpointing why the placement stays blank and applying the code-level fix that gets it loading again. You will have full access to the current build, the ad unit IDs, and recent logcat output. Once the issue is resolved, I’ll need a brief summary of what was wrong, the code changes you made, and confirmation that test ads—and then live ads—render correctly on both Android and iOS builds. If you have tackled “ad not displaying” problems with common networks before, this should be straightforward. Let’s get the banners back where they belong.
I have an existing React Native + Expo codebase that was developed by Claude. Each milestone is already defined and most features are in place; however, before moving on I need a fresh, professional eye on the work. Your first task is to pull the repository, run the project, and verify that every item promised in the latest milestone actually works. While doing so, concentrate on two things in particular: code quality & standards and overall functionality & performance. I do not have a custom style guide -simply apply widely accepted industry best practices as your benchmark. When the review is finished, send me a concise report that includes: • A checklist of which milestone items are fully met and which are missing or incomplete • Notes on any deviations from best-p...
I have a Windows-based application whose runtime behaviour I need to intercept so I can change specific data before the original program sees it. In practical terms this means inserting a reliable hooking layer—whether by API hooking, DLL injection, or another method you propose—that can capture the desired calls or messages, let me tweak the payload, and then pass the altered data back to the target process seamlessly. Here is what matters most to me: the interception must be invisible to the user, stable across sessions, and light on resources. I am open to whichever technique you feel fits best, so long as it gives me full control over modifying the captured data in real time on Windows 10 and 11. Deliverables I expect • A compiled solution (DLL/executable) that d...
I have a short Python script and only need a fresh set of eyes on one tiny section. The goal is to confirm that a specific value—labeled “best model” in the code—is truly being passed where I think it is. Right now I’m uncertain whether the hand-off happens correctly, so I’d like you to trace that path and show me, with a brief explanation or annotated snippet, if the data flow is sound. The spot in question involves a function that should pass the value along; please inspect the call chain, any intermediate assignments, and the final use of “best model.” If you find a mismatch, point it out and suggest the simplest fix. A quick turnaround is appreciated since this is only a few lines.
I have created a web app using AI-assisted coding / vibe coding. The app is already running to some extent, but it is not properly built like a professional SaaS product. Since I am not a programmer, I need an experienced developer to review the entire codebase, clean it up, fix issues, and make it more stable and secure. This is not a project to build a new app from scratch. The basic version already exists, but because it was vibe-coded, I believe there may be messy code, poor backend structure, frontend-backend connection issues, bugs, security problems, and things that are not production-ready. I need someone who can actively work with me, understand what the app is supposed to do, inspect the current setup, and then properly fix and improve it. What I Need Help With The developer ...
!!! ONLY LOOKING FOR CHINESE DEVELOPER !!! !!! I AM NOT LOOKING FOR WEB/AI ENGINEER !!! I am looking for an experienced Android/AOSP + hardware engineer located in China, preferably Shenzhen, to help develop an Android-based DTV box. 1. Android platform / AOSP / BSP 2. Android hardware board design and China electronics manufacturing/marketplace The product is an Android TV/DTV box, preferably supporting DVB-T2 or DVB-T. The developer should understand how Android hardware boards are designed, how chipsets/modules are selected, how the BSP/AOSP is prepared for the board, and how to work with Chinese component suppliers or board factories. The ideal engineer should have experience with: 1. AOSP build system, Android BSP, device tree, kernel, bootloader, HAL 2. Android TV box or set-top ...
Advanced JPOS JPTS/JCard Training I already handle everyday JPOS work with ease; what I now need is a mentor who can guide me through JPTS and JCard at source-code level. The sessions must be fully interactive—screen-sharing, live coding, and real-time Q&A—so we can explore advanced configuration, troubleshooting, and deep-dive debugging together. My first priority is to get the actual source code for JPTS and JCard (this is the most important, it needs to be shared with me); I want to give equal attention to each side of the payment ecosystem: issuing and acquiring. I'm already very well versed into theory. I need to see JPTS and JCard's implementations. Please we'll go through the implementation and be prepared for questions in interactive sessions. Del...
My production Laravel site has suddenly stopped rendering and now shows a blank, white page instead of the usual content. I need someone who can jump in right away, trace the root cause, and restore normal output. You’ll get SSH and/or cPanel access to the VPS along with the repository (Laravel 9, PHP-FPM 8.1, Composer). I haven’t yet inspected the logs or run an artisan debug, so the first step will be to check storage/logs, the web-server error log, and try php artisan route:list / migrate / config:clear to surface any fatal errors. Once the underlying exception, mis-configuration, or missing package is identified, apply the corrective fix and verify the UI loads correctly on every route. Deliverables (all must be met before hand-off): • Application loads without a whi...
I already have a Flutter mobile application with around 90% of the development completed. I am looking for an experienced Flutter developer/team to finalize the app and make it fully production ready for both Android and iOS. Scope of work: - Review existing Flutter codebase - Complete pending features - Fix bugs and improve stability - Optimize UI/UX and app performance - API/Firebase integration fixes if required - Ensure Android and iOS compatibility - Testing and debugging - Generate production-ready builds - Optional support for Play Store and App Store deployment Requirements: - Strong Flutter & Dart experience - Experience with Firebase and REST APIs - Experience publishing apps on Play Store and App Store - Ability to work with existing codebases - Clean and maintainable co...
I already handle everyday JPOS work with ease; what I now need is a mentor who can guide me through JPTS and JCard at source-code level. The sessions must be fully interactive—screen-sharing, live coding, and real-time Q&A—so we can explore advanced configuration, troubleshooting, and deep-dive debugging together. My first priority is to get the actual source code for JPTS and JCard (this is the most important, it needs to be shared with me); I want to give equal attention to each side of the payment ecosystem: issuing and acquiring. I'm already very well versed into theory. I need to see JPTS and JCard's implementations. Please we'll go through the implementation and be prepared for questions in interactive sessions. Deliverables I expect • A se...
I’m facing a persistent technical problem that’s blocking progress on my current project. The exact details involve proprietary code and configuration, so I’ll share full access, logs, and replication steps once we start. Your task is to diagnose the root cause, implement a clean, verifiable fix, and document what you changed so I can maintain it going forward. A concise post-mortem explaining why the issue occurred is also important to me. The engagement is complete when: • The problem no longer appears in my staging environment. • Your notes let me reproduce the fix on production without guesswork. If you’re comfortable jumping into an existing codebase, tracing bugs, and delivering a solid solution quickly, I’m ready to get started ri...
Start proposal "Rockchip RK3562" My total budget is fixed at $15. If you contact me, please be comfortable working within this budget so we don’t waste each other’s time. Full Details: Project Overview: I extracted the dynamic from a Rockchip RK3562 Android 14 tablet and need it rebuilt using a LineageOS ARM64 GSI already provided in .img format. Required workflow: • Extract and unpack the existing while preserving original dynamic partition metadata. • Replace the stock system partition with the supplied LineageOS GSI. • Apply a few lightweight system modifications inside the mounted GSI (details will be shared later). • Rebuild and repack the using lpmake so it flashes properly via fastboot or RKDevTool. • Patch the stock using avbto...
C++ Account System Bug Fix Project Project Title Fix Bugs and Improve Performance in Existing C++ Account System Budget $900 USD Project Description I am looking for an experienced C++ developer to fix multiple bugs and improve the stability of my existing account management system. The project includes: Fixing login and authentication bugs Resolving crashes and memory issues Improving performance and code stability Debugging account-related functions Cleaning and optimizing the existing codebase Reviewing security and fixing possible vulnerabilities Testing the system after fixes Requirements Strong experience with C++ Experience with debugging and optimization Knowledge of memory management and multithreading Ability to work with existing codebases Good communication and regular u...
I'm building a used-car aggregator for Australia using Lovable (TypeScript, React, Supabase, Apify). The app is live and searches multiple sources across 7 cities. The scraping pipeline has bugs — some sources return no results or wrong results in certain cities. The fixes have been identified but need to be properly implemented and tested in production. Looking for a developer who can: - Review the existing codebase on Lovable/GitHub - Fix the scraping pipeline bugs - Verify all sources return correct results in all cities - Test using the built-in /debug diagnostic page This is an early-stage project with no paying users yet. I need someone reliable who can deliver working results, not just code that looks correct. Fixed price with milestone payments. Full bug list ...
I already have a Flutter mobile application with around 90% of the development completed. I am looking for an experienced Flutter developer/team to finalize the app and make it fully production ready for both Android and iOS. Scope of work: - Review existing Flutter codebase - Complete pending features - Fix bugs and improve stability - Optimize UI/UX and app performance - API/Firebase integration fixes if required - Ensure Android and iOS compatibility - Testing and debugging - Generate production-ready builds - Optional support for Play Store and App Store deployment Requirements: - Strong Flutter & Dart experience - Experience with Firebase and REST APIs - Experience publishing apps on Play Store and App Store - Ability to work with existing codebases - Clean and maintainable co...
Title: PHP Developer Needed for Loan Management Web App Bug Fix & API Support Description: We are looking for an experienced PHP developer to fix and maintain an existing loan management web application. The system includes: PHP backend MySQL database Flutter mobile app integration API communication Hostinger hosting environment Tasks: Fix login/authentication issues Debug API response problems Resolve database connection/form submission errors Check CORS/API integration with Flutter app Improve backend stability and performance Support live deployment if needed Required Skills: PHP MySQL REST API development JSON handling Hosting/cPanel/Hostinger knowledge Debugging live applications Flutter backend integration experience is a plus Project Type: Freelance / Remote Experience Lev...
I am extending our SAP Business One environment (connected to SAP S/4HANA) with a bespoke HR add-on and need an expert who can walk my in-house team through every step. Your main focus will be a Payroll Management module that handles salary calculation, tax computation, and leave management, built with both the DI API and UI API. Here is what I expect from the engagement: • Architectural guidance on designing an SAP B1 add-on that blends seamlessly with the core system and our S/4HANA landscape. • Hands-on coaching sessions—code walkthroughs, sample projects, and best-practice patterns—for DI API and UI API usage. • Development of reusable code snippets or templates covering salary runs, statutory tax rules, and leave accrual tracking. • Help settin...
Freelance Google Sheets + Apps Script Developer Needed | 2-Week Project We are looking for a strong Google Sheets + Google Apps Script developer to help convert detailed workflow specs into a production-ready internal automation system. This is a short, focused project where most of the design thinking is already done. We will provide: • Sheet-wise workflow design • Button/action requirements • Google Forms integration flow • Draft Apps Script code generated with Claude • Sandbox sheet, forms, and test API/API keys for debugging The developer’s role will be to review, refine, secure, debug, and complete the implementation. Key skills required: • Advanced Google Apps Script coding • Google Sheets automation • Google Forms integration &bull...
My Django site throws error messages whenever a user clicks between pages, breaking normal navigation flow. Startup and deployment run fine—the problem surfaces only during live interaction. I need someone who can jump into the codebase immediately, trace the root cause of these runtime errors and deliver a clean, tested fix. You’ll get Git access to the project and any relevant logs I already captured. Feel free to use Django Debug Toolbar, standard logging, or your preferred profiling tools; just keep the tech stack native to Django 3.x and Python 3.10 so everything stays compatible. Deliverables: • Working patch or pull request that eliminates the current navigation-related errors. • Brief summary outlining what went wrong and how you resolved it, so I can avoi...
i have one java class where to report some edits. the edits belong from an not updated file. i cant just merge. whoever help me will have the 2 files and have to provided me the working file with last version and merged
We are looking for a highly experienced WordPress performance optimization expert to analyze and solve serious loading speed and LCP (Largest Contentful Paint) issues on our website. About the Website WordPress website 4 languages Large amount of pages and dynamic content Includes a trade show calendar with more than 3,000 event entries Custom plugin developed by a previous freelancer to manage events and fair pages The entire website is loading slowly, including standard pages, and we need to identify the real root cause of the problem. Important: We do NOT want to use Cloudflare or similar external caching/CDN systems, as we previously experienced problems with them. What We Need Milestone 1 – Full Technical Audit & Performance Report We need a detailed investigation of wh...
I need a developer who can fix a crash issue related with firebase
My WordPress site suddenly broke: instead of the normal pages, the browser shows raw PHP/HTML code and key features will not run. I have not installed or updated any plugins recently, so the underlying conflict may be rooted in an older extension, a theme function, or a server-side setting that flipped without notice. I need someone who can quickly: • Pinpoint the exact plugin or code fragment responsible for the breakdown, even if it is hidden behind cached files or obfuscated errors. • Restore every page so it renders normally, with contact forms, log-in areas, and any other front-end feature operating as before. • Provide a short report of what was wrong, how you fixed it, and recommendations to prevent a repeat (backup strategy, version control, safe-update routin...
!!! ONLY LOOKING FOR CHINESE DEVELOPER !!! !!! I AM NOT LOOKING FOR WEB/AI ENGINEER !!! I am looking for an experienced Android/AOSP + hardware engineer located in China, preferably Shenzhen, to help develop an Android-based DTV box. 1. Android platform / AOSP / BSP 2. Android hardware board design and China electronics manufacturing/marketplace The product is an Android TV/DTV box, preferably supporting DVB-T2 or DVB-T. The developer should understand how Android hardware boards are designed, how chipsets/modules are selected, how the BSP/AOSP is prepared for the board, and how to work with Chinese component suppliers or board factories. The ideal engineer should have experience with: 1. AOSP build system, Android BSP, device tree, kernel, bootloader, HAL 2. Android TV box or set-top ...
### **Project Description** I am seeking an experienced WordPress Developer with a strong background in **IDX/RETS integrations** to repair a broken real-estate listing feed. My site uses **Estatik Pro** and the **Trestle RETS feed**. The setup was previously stable but has recently begun failing. ### **The Problem** * **Automated Imports Stalled:** The listing import has stopped pulling fresh data. * **Cron Issues:** Estatik cron jobs are failing or timing out. * **Server Stability:** The site frequently returns **503 Service Unavailable** errors during scheduled import times, likely due to PHP process exhaustion. * **Environment:** WordPress site hosted on a **Linux VPS** (Full SSH, cPanel, and log access available). ### **Scope of Work** 1. **Diagnosis:** Identify the root cause of...
I am looking for an experienced Senior Full Stack Developer to assist me with a technical skill assessment for a new job opportunity. Tech Stack - React.js - TypeScript - Node.js - PostgreSQL - REST APIs - Modern full stack development practices What I Need - Guidance and support during the technical assessment - Help with architecture, clean code, and best practices - Strong debugging and problem-solving skills - Experience building scalable full stack applications - Ability to explain solutions clearly Preferred Qualifications - Senior-level experience in full stack development - Strong knowledge of React + TypeScript - Backend expertise with Node.js - Database design and PostgreSQL experience - Experience with coding tests or technical interviews Additional Notes - ...
ATM NDC application CAM Data is not flowing from the NCR would require a free lancer who can review the state,fit,downloader to make it work.
I need an experienced StepWise developer who can step in quickly and provide hands-on job support. I’m working in a live environment and sometimes run into roadblocks—from wiring up new components to tracking down elusive performance issues. When that happens, I’d like to hop on a screen-share, walk through the problem together, and leave with clean, working code and a clear understanding of what we changed. The collaboration will be on-demand, usually a few hours at a time during US Eastern business hours. You should be comfortable with the StepWise SDK, scripting, deployment pipelines, and general best practices around configuration, versioning, and automated testing. Strong communication skills are a must, as I value concise explanations and knowledge transfer just ...
# Red Dead RECKONING – Community Support Campaign Looking for gamers and supporters to help boost the visibility of **Red Dead RECKONING** on Microsoft/Xbox Store. Task: * Download and play the game * Share your store rating/review * Send screenshot after completion * Share feedback or suggestions Compensation: ₹100 for completed participation and feedback submission. Share screenshots in chat after completion. Microsoft Store: You can get more promo code bid Your support helps our indie studio grow, reach more players, and continue building bigger AAA gaming experiences.
I have an immediate need for a developer who knows Nintex inside-out. My current project is stalled because our workflows and forms are only half-built, so I’m looking for someone who can jump in right away, review what is already there, complete the remaining logic, and make sure everything runs smoothly end-to-end. We are looking for a skilled SharePoint Developer with hands-on experience in Nintex and JavaScript to design, develop, and maintain SharePoint-based solutions. The ideal candidate will be responsible for building efficient workflows, enhancing user experience, and ensuring seamless integration across systems. Key Responsibilities: A. Development & Customization • Design, develop, and maintain SharePoint sites, pages, and web parts • Customize SharePoint ...
I run a live Laravel application that has recently started throwing a handful of errors. I need those bugs isolated and resolved without interrupting users in production. You’ll be diving straight into the existing Git-based codebase, so solid Laravel 9+/PHP experience, along with safe hot-fix practices (feature branches, zero-downtime deploys, rollback readiness), is essential. The scope is limited to bug fixes only; no new features or performance tuning this round. Once each issue is patched, I expect a brief summary of the cause, the lines changed, and confirmation that the fix is live and stable. I’m ready to grant repository access and SSH credentials the moment we agree. Please be available to start right away and comfortable working within a fixed $30 budget for th...
Gemstone Cascade is an iOS merge puzzle game built with Capacitor and TypeScript, rejected under Apple Guideline 2.1.0 (crash on launch suspected). I need an experienced Capacitor iOS developer to diagnose the crash from .ips log + dSYM symbolication, fix the root cause (not patch it), configure AdMob production IDs (Banner, Interstitial, Rewarded), verify ATT (NSUserTrackingUsageDescription) and SKAdNetworkItems in , run a real-device stability pass, upload a clean build to TestFlight, and deliver a written fix report covering root cause, changes made, and verification steps. I will provide the .ips file, dSYM, read-only GitHub repo access, App Manager role on App Store Connect, AdMob production IDs, and bundle ID. Budget is $250 USD fixed. Deadline is 3 days from access to artifacts &mda...
My TradingView strategy appears accurate on the chart and in the Strategy Tester, but live strategy alerts are unreliable. In some cases, “ghost” orders are triggered that never existed in the backtest, while genuine chart orders are occasionally skipped. All entries and exits are routed through the single `strategy.*` alert method for automated execution, so these mismatches disrupt live deployment. The strategy combines indicator-based conditions with custom price-level logic, including Camarilla Pivot levels and proprietary signal conditions. The issue mainly appears when price interacts with these custom levels. While the strategy behaves correctly visually on the chart, the live alert environment still produces inconsistent order generation. Important clarification: The ...
# Need Complete Pearson BTEC HND Unit 1 Programming Assignment (Distinction Level) I am looking for an experienced academic writer + software developer to complete a FULL Pearson BTEC HND Computing Unit 1: Programming assignment. The assignment MUST meet DISTINCTION level standards and strictly follow the official Pearson brief. This is NOT just a coding task — I need complete academic documentation, presentations, source code, debugging analysis, evaluation reports, and professional formatting. ## Project Requirements The assignment includes the following deliverables: ### 1. Programming Paradigms Presentation * 10–15 slides * Detailed speaker notes * Procedural Programming * Object-Oriented Programming (OOP) * Event-Driven Programming * Comparison and critical evaluati...
I have a batch of more than ten iPhones currently stuck on Activation Lock. My existing tooling reliably handles everything up to iOS 26.1, but these phones are all running 26.2 or newer and are no longer susceptible to the public tricks. I’m therefore ready to partner with someone who has genuine, hands-on success pushing past this barrier. Here’s the situation: • I already own the necessary Macs, cables, and exploit-friendly environments; you will connect to my machine over TeamViewer so we can work in real time and keep the devices physically in front of me. • My strongest interest is in building or refining custom iOS tooling rather than re-hashing checkm8 or checkra1n alone, though deep knowledge of those exploits is obviously valuable. • Collaboration...
I’m building a product around an ESP32 and need a clean, reliable firmware layer that handles both Bluetooth Low Energy and Wi-Fi. The two core responsibilities are device connectivity and on-demand data transmission. Here’s what I expect the software to do: • Seamlessly switch between or simultaneously maintain BLE and Wi-Fi links to smartphones and tablets. • Expose a simple, well-documented API so the application layer can request or push data whenever needed rather than streaming constantly. • Keep connections stable, recover gracefully from dropouts, and report status events (connected, disconnected, data sent, error, etc.). • Offer secure pairing/authentication on BLE and WPA2 on Wi-Fi. • Remain lightweight so sleep routines and future ...
I accidentally overwrote several CSS rules on my WordPress site and the layout is now broken. I need to jump on an immediate live call with screen-sharing so you can walk me through restoring the correct styling and applying any quick fixes directly in the theme or custom-CSS area. My sole priority for the session is to fix the CSS issues right away; there’s no working backup to roll back to, so we will be inspecting, editing and testing in real time. You will need to: • Join a video call (Zoom, Teams or similar) with screen share. • Pinpoint the rules that were altered and re-create or adjust them so the site looks exactly as it did before. • Explain any safety steps—child-theme use, version control, simple backup plugins—so I avoid repeating this mi...
My Laravel-based shop is already pushing orders into Amicron, yet every import ends up tying the order to the wrong customer. The mismatch is isolated to customer information—specifically the customer ID—while product lines and amounts look fine. I need someone who knows both Laravel (PHP 8) and Amicron’s import interface well enough to: • trace the current mapping logic, • correct the field assignment for customer IDs, and • validate the fix by running test orders on our staging copy of Amicron. The work is finished when a new order placed in Laravel lands in Amicron with the exact customer ID we see in the shop database, no manual corrections required. Access to the Git repo and a staging Amicron DB will be provided as soon as we agree on the ...
My WooCommerce store (divi, Wordpress) is dropping transactions at the payment stage. Checkout throws a specific notice that the buyer’s “country and region is not registering,” and the charge never completes. Everything else on the site runs smoothly. What I need from you • Diagnose why the address data is not reaching Stripe (or not being accepted) and identify any theme, plugin, or API version conflicts behind the issue. • Apply a clean, update-safe fix in PHP/JS that restores reliable payment flow. • Test end-to-end with live or test cards and confirm that orders are properly captured, marked paid, and logged in WooCommerce/Stripe dashboards. • Document the root cause and the code or settings you modified so I can keep the store stable aft...
My travel-booking platform is built in PHP and everything loads perfectly until the moment a registered user tries to confirm a reservation. As soon as they hit the “Sign in to complete your booking” step the site throws a 403 error, blocking the checkout flow entirely. Data is still being pulled from the APIs and displayed correctly, so the fault seems isolated to whatever happens inside that final confirmation call—possibly a permissions rule, .htaccess directive, token check or something similar. I haven’t knowingly changed code or plugins right before the issue appeared, so I need someone who can methodically trace the root cause, correct it, and make sure the booking journey works end-to-end for registered users without disturbing the rest of the site. What...
My website runs on a Node.js back-end with a React front-end. A recent performance degradation bug on the server side is slowing response times, and I need it resolved quickly. Scope of work • Pinpoint the root cause of the slowdown (e.g., blocking code, inefficient queries, memory leaks, or misconfigured middleware). • Implement a clean, well-documented fix that restores normal performance without introducing regressions. • Provide a brief summary of the steps taken, files changed, and any recommendations for future optimisation. Please let me know: 1. Similar Node.js performance issues you have solved. 2. Your estimated hours to diagnose and fix. 3. A straightforward cost for the task and earliest start time. I will supply repository access and any logs you need...
I have a Manifest V3 Chrome extension that automates visa-appointment scheduling by extracting session tokens, fetching open slots, and submitting the final form. The logic works locally when I replay calls, yet every live request fired from the service-worker is met with a 403 Forbidden. Here is what I already know and have tried: • All calls reproduce perfectly in the Network tab of DevTools, so I can share HAR files and screenshots. • Manual header tweaks and dedicated Puppeteer scripts confirm the endpoints themselves are stable. • My hunch is that something in the session handling chain is being dropped or regenerated between the content script and background worker, because the same headers and cookies succeed when fired outside the extension. You wi...
Tengo un workflow en n8n que se ejecuta bien al principio y al final, pero en la parte intermedia se detiene con un mensaje de error. Necesito que revises ese tramo, identifiques la causa exacta y lo dejes funcionando sin interrupciones. El mensaje de error aparece en consola y dentro del log de n8n Cloud; compartiré la traza completa y acceso temporal al flujo para que puedas reproducir el fallo. El workflow combina nodos HTTP Request, Function y MySQL, así que deberías sentirte cómodo depurando JavaScript en n8n, revisando mapeos de datos y verificando credenciales/API keys. Entregables esperados: • Workflow corregido y operativo. • Explicación breve de la causa y de los cambios aplicados (comentarios en el propio flujo o documento aparte)...
J’ai besoin d’un partenaire de confiance pour du développement informatique — plus précisément du développement de logiciels sous Windows — sur une base horaire régulière. Au fil des semaines, je prévois diverses missions : corrections de bugs, ajout de nouvelles fonctionnalités, optimisation des performances et entretien général de nos applications Windows existantes. Ce que j’attends : • Solide expérience en développement logiciel Windows (C#, .NET, C++ ou technologies équivalentes) • Capacité à livrer un code propre et documenté, testé avant remise • Communication claire pour estimer le temps nécessaire et r...
J’ai besoin d’un partenaire de confiance pour du développement informatique — plus précisément du développement de logiciels sous Windows — sur une base horaire régulière. Au fil des semaines, je prévois diverses missions : corrections de bugs, ajout de nouvelles fonctionnalités, optimisation des performances et entretien général de nos applications Windows existantes. Ce que j’attends : • Solide expérience en développement logiciel Windows (C#, .NET, C++ ou technologies équivalentes) • Capacité à livrer un code propre et documenté, testé avant remise • Communication claire pour estimer le temps nécessaire et r...
Wir suchen einen hochqualifizierten Senior Java Developer / DevOps Engineer, um ein umfangreiches Enterprise-Software-System (ca. 10 Jahre alt) wieder in Betrieb zu nehmen. Es handelt sich um ein wertvolles System, das ursprünglich für die Wettbranche entwickelt wurde. Dies ist keine einfache Reparatur eines Windows-Installers. Das System verfügt über eine modulare Java-Architektur, die einen Experten erfordert, um die gesamte Entwicklungs- und Runtime-Umgebung von Grund auf neu aufzubauen. Technischer Stack: * Sprache: Java 7 (Legacy) * Build-Tool: Maven (ältere Versionen) * Application Server: Tomcat 7 * Datenbank: MySQL 5.5 * Infrastruktur: Vagrant / Linux / Windows Services * Projekttyp: Multi-Modul Maven Projekt (WAR/JAR Ausgaben) Hauptaufgaben: 1. Wied...
Tenho uma loja online em PrestaShop que, sem motivo aparente, passou a consumir dezenas de GB no servidor, sobretudo em /var/cache/dev. Esse crescimento vem acompanhado de avisos PHP ligados a templates / cache do tema e de alguns módulos, além de perceptível queda de desempenho na loja. Preciso de uma análise técnica completa que encontre e corrija a causa-raiz — não quero apenas limpar a pasta manualmente. Não tenho certeza se prefiro ferramentas específicas, portanto pode usar o que considerar mais eficaz. O que observo: • Modo debug/dev pode estar ativo sem necessidade. • Os warnings PHP sugerem problemas no tema ou em módulos. • Não houve atualizações ou novas instala&ccedi...
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Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.