Line follower robot using arduino uno and ir sensor jobs
...display sensor data and other information from the ESP32 in real time. This is crucial for monitoring and making informed decisions. - **Graphical User Interface**: A clean, user-friendly interface is necessary for easy operation. Think about intuitive design and clear displays. - **Bluetooth Connectivity**: The app must be able to connect seamlessly to the ESP32 via Bluetooth. Reliable connectivity is a must. Interactions: - **Button presses**: The app will have buttons for the user to send commands to the ESP32. These should be responsive and intuitive. - **Text commands**: The user should also have the ability to input text commands. Think about a text box or prompt for this. - **Slider controls**: Some controls should be in the form of sliders. ...
i need a graphic designer to help with a design. I have an idea but can not create it. It needs to be able to be used for different purposes - web site and then broken apart for labeling in clothing. Business is production of mostly custom dance costumes (primarily ballet) and some specialty stage costumes Business name is StageCraft Couture My idea is stylized curtains on each side, a minimalistic single line drawing of a ballet dancer (in tutu) at top and a mimialistic line drawing of a stage below The business name would go in middle with stylized lettering that would then be used in clothing labels on their own
...2.5 Find node that represents the itemset 3 line 1,2 This file would mean to: 1: Draw a circle with radius 1.5 at point (5.3 across,1.2 down) with the word "Begin" in it. 2: Draw a rectangle with width 6 and height 2 at point (5.3 across,1.5 down) with the words "Find node that represents the itemset" in it. 3: Draw a line pointing from 1 to 2 I don't care how the definition works other than how general it is. The above is just to show what I mean. 1. You could provide the flowcharts that some app allows you to make manually. 2. You could provide what the attached 30 files (or a subset) show. 3. You could propose the capabilities as a specific spec for what the input text file contains. 4. You can make it a price depending of what it can ...
I'm in need of an experienced Linux and Server Admin who can help me with the following tasks: - Linux and Server Administration: Proficient in CentOS, you'll be managing my server and ensuring its optimal performance. - Web and App Installation: You'll be responsible for installing and configuring various websites - coded in PHP, Node.js, and React - on the server. Additionally, you'll need to install Flutter and React Native apps. The ideal candidate should have advanced understanding and practical experience in Linux system administration, server administration, and web/app installation. Proficiency in PHP, Flutter, and React Native is required. ---------------------------------------------------...
...applications. Ideal Skills and Experience: Proficient in Windows application development. Expert in low-level programming, specifically in system-level assembly language. Knowledgeable in gaming input emulation and keyboard input simulation. Experience in backend applications is beneficial. Project Specifics: The emulator must not breach game firewall securities or require unauthorized system modifications such as disabling driver signature enforcement. It should operate successfully in the game, similar to devices like Arduino Leonardo or ESP32. The goal is to simulate pressing the Z1 keys solely through software, without external devices. Activation should be tied to the Caps Lock LED status—active when on, and inactive when off. Solutions utilizing...
I'm in need of a social media promoter who could help me grow my Instagram follower base and increase brand awareness. The primary focus will be on engaging content with active players. Key Responsibilities: - Increasing the number of followers on my Instagram account - Enhancing the visibility of my brand among the target audience - Encouraging active players' engagement Ideal Candidate: - Proven experience in social media promotion with a specific focus on Instagram - Good understanding of the gaming industry and active player behavior - Ability to create and curate engaging content including photos, videos, and live streams - Strong communication skills to interact with followers and keep them engaged.
...looking for a professional to reinstall my Money Robot affiliate link. My main goal for this project is to improve search engine rankings. Key Requirements: - Reinstall the Money Robot affiliate link on my website's home page - Ensure the affiliate link is strategically positioned for optimal SEO benefits I'm particularly interested in increasing the visibility and ranking of my site on search engines. You should be well-versed in affiliate link installation, search engine optimization, and website placement strategies. Your work will contribute significantly to enhancing my site's visibility and search engine rankings, thereby driving more organic traffic to the site. Your proposal should detail your experience with similar projects...
...residential floor plans. Scope of work: Update plans and make necessary modifications per information below. We want to make some changes to the attached plans. The main objective was not to compromise the roof lines and exterior. Scope of work- Masterbath- Bumpout for Tub with side roof. Will not affect main roof. Masterbath and Closet reworked and extended this area along with the garage back 5’-0” existing roof pitch will extend. Bedroom 3- Extended this area back 5’-0” and added a pitch roof to the existing roof line. Moved rear porch demising wall over 3 ft to expand the width of this room. Need to resize living room windows next to back door. Prefer Qty.3 3060 windows with 3080 door in living room. No ne...
...engaging and relevant TikTok videos for social media distribution. Key Responsibilities: - Conceptualizing and producing original, high-quality video content specifically for TikTok. - Ensuring the content is in line with our brand's tone, guidelines, and target audience. - Implementing trending TikTok features and effects to enhance the video's appeal. - Delivering content that's optimized for social media engagement and sharing. Ideal Candidate: - Demonstrable experience creating TikTok content. - A strong understanding of social media trends and audience preferences. - Proficiency in utilizing TikTok's features and tools for maximum reach. - Creativity, innovation, and a keen eye for aesthetics. - Ex...
I need a small application prototype with the following features: Multi-Employer Job Portal/Admin app (Role Based access) User/applicant App (for Multiple applications to different employers) User Profile Document Upload (Save documents to Db and attachments to Blob Storage ) Send Emails to Employers and applicants back and forth 2 Apps in total ie. admin app and applicant app. job application requirements will be provided. Nodejs, angular, My SQL, ORM, Data Seeding, Migrations should be used.
You must to be at least 16 years old and live in Latin America or Eastern Europe. ✻ NO EXPERIENCE REQUIRED ✻ You do not need any experience whatsoever, but you must be clever and eager to learn. No. I am *not* being charitable; rather, I am being practical. ✻ PAYING YOU TO LEARN ✻ No. You aren't dreaming. I value intelligence and problem-solving ability over experience. I'd prefer to work with someone who is clever and learns quickly rather than someone experienced but is not very intelligent and/or does not solve problems scientifically. Would I hire an Isaac Newton or an Albert Einstein even if he had no programming experience? Of course I would. ✻ TESTS ✻ You must pass several difficult logic tests to work with me. The first logic tes...
I have a simple python script that interact with an API that takes data from said api and outputs it in a table. The service where I use the API also has a website where I can see in the same table format the exact same data. Pandas know how will help. My problem is that the data from API and from service is mismatching. Your job is too look and identify where the problem is. You will receive both program (simple streamlit app that runs locally) and login details to website to cross check.
...websites with a knack for understanding the tax relief industry needs. Key Features: - Integration of an online contact form, live chat support, and a space for showcasing client testimonials. - Design the website drawing inspiration from high-traffic sites within the industry like Omini Tax Relief and Optima Tax Relief. Ideally, you should have: - Significant experience in creating successful, high-traffic websites. - A sound understanding of SEO principles and direct experience in implementing them. - The ability to make effective design decisions in line with the industry's expectations and current trends. I am open to the developer's opinions and suggestions on the website's design style. Your expertise in delivering a dyn...
I'm looking for a graphic designer to create a logo for my t-shirt line, "Suspect Statements". The theme of the line is true crime show quotes and clichés, so I need the logo to convey a sense of crime, wit, and style. Key Requirements: - Incorporating US yellow crime scene tape into the logo - Using a color palette of black, yellow, and white - Typography should be edgy and bold Ideal Skills: - Graphic design with experience in creating logos for clothing lines - Proficiency in creating designs that are both stylish and thematic - Understanding of how to incorporate specific symbols in a creative manner Please provide a portfolio of your previous logo designs, particularly those that are related to clothing b...
I'm seeking a skilled professional to handle critical facets of my website's sustainability: content updates, and performance optimization. Your tasks will be: Content Updating: - Regular updates of the text on my site, to keep our information relevant and engaging. - Image updates to keep our website visually appealing. - Product updates in line with our business progression. Performance Optimization: - Focused attention on speed of updates posted on the website. Ideal freelancer for this job would be someone skilled in web development and design, with a keen eye for detail, quick turnaround time and excellent knowledge of performance optimization. Dedicated approach to maintaining high quality content will be expected.
I'm seeking an expert in Python for a Natural Language Processing project focusing on text classification of social media posts. ...Project Features: - The goal is to build a Python coding notebook that can efficiently classify different types of text within social media posts. This will require a deep understanding of NLP principles and techniques. - The project primarily demands the use of Python for its implementation. Ideal Skills and Experience: - Expertise in Python programming is a must. - A strong background in NLP, particularly in the area of text classification, will be highly beneficial. - Prior experience working with social media text data would be a plus. If you're confident in your Python and NLP skills and have experience in text c...
...looking for an applicant who possesses a deep understanding of Chinese language and culture. This will enable us to create precise and engaging content that resonates with our target audience. We are in search of a skilled translator who is culturally aware, as our Chinese-speaking audience depends on us for content creation. In order to be relevant and accessible, it is important for the content to align with the local beliefs, practices, and trends. Furthermore, it is crucial to ensure that your tone and style align with the brand's voice and meet the expectations of your audience. Make sure to thoroughly review every detail for accuracy and cultural relevance. Ensure that the tone and style remain consistent, in line...
...a developer from before that told me he could improve the module by take order dates and other dates already in the database to fill in missing data of the graph. Right now the graph just records order and financial information in the database and displays it on the graph. Where there is no data the graph just shows a straight line as shown in the demo screenshot. So I want the graph to show the data that its table is missing by getting this information from the WHMCS database. The end result would fill in the missing data of the straight line and also show the history on the graph from the start of the database, right now it only goes back 3 years because that is all the data it had collected since using this module. Hopefully this mak...
...looking for a talented and creative graphic designer to help me create a modern logo for my cleaning business, "UNLIMITED ALL PURPOSE CLEANING SERVICE". This logo needs to embody: - A professional, friendly and trustworthy feel: It's essential that the logo gives off a sense of professionalism while also being approachable and trustworthy. It should not come across as overly corporate but rather inviting and reliable. - Incorporation of Blue & Green: The logo should primarily feature the colors blue and green. These colors symbolize cleanliness, freshness, and trust, and are also in line with the colors of the Earth. Ideal Skills and Experience: - Proven experience in creating modern and clean lo...
I am looking for a seasoned fashion designer with a keen eye for beauty and functionality to help with the development of a clothing item - more specifically, a type of legging design, that I have recently designed and is currently “patent pending”. This clothing item is tailored to resonate with women of all ages. The fashion industry is dynamic and ever-evolving, and this project seeks to tap into its multifaceted nature to cater to a broad demographic. I am looking for someone who is well-versed in creating and developing clothing items, (a plus would be if they had some experience in creating any type of leggings, but it’s not a must), and has a creative & innovative mind to think outside of the box and show al...
...Experience with designing for Facebook, Instagram, Twitter, and LinkedIn - Proficiency in creating minimalistic graphics - Ability to work with specific colour schemes and branding guidelines Your role will involve: - Understanding the provided colour schemes and branding guidelines - Creating a variety of visuals for posts, stories, and ads on the specified social media platforms - Ensuring all designs are modern and minimalistic in line with the overall theme Ideal candidates would be able to take the provided colour and branding guidelines and translate them into engaging and effective social media content. Experience in creating visual content for multiple platforms would be a big plus. Looking forward to seeing your ...
...that conveys the essence of a laundrette. The logo should be versatile and suitable for various marketing materials. - **Signage Design:** The designer will also be responsible for creating signage that can be easily visible from a distance. The signage must be consistent with the overall theme. - **Poster Adverts:** I need poster designs for advertising purposes. These posters should be eye-catching, informative and in line with the brand's identity. Skills and Experience: - Proven experience in graphic design, particularly in the areas of branding and marketing. - Strong portfolio of previous logo designs that showcase versatility and creativity. - Familiarity with signage and poster design. - Ability to work efficiently and...
I'm hoping to secure a specialist affiliate installer who specifically knows their way around Money Robot. My main focus is on account setup and configuration along with integrating my website with Money Robot. Required Skills and Experience: - Expertise in Money Robot affiliate network - Profound knowledge of affiliate network setup and configuration - Solid understanding of website integration with Money Robot Remember, I am looking for a specialist who can adeptly handle these tasks with no unnecessary complications. Your experience and problem-solving abilities are much appreciated.
...experienced UI/UX Designer for an iOS app dealing with style and fashion. Core Functionality: - The app is essentially a style and fashion app. It uses AI to help people look their best. - The main functionality of the app is to provide a virtual try-on for clothing, offer color matching suggestions and give personalized style recommendations. Target Audience: - The app is designed for both men and women. Ideal Skill Set: - Previous experience working on fashion or style-related apps is a plus. - Knowledge of AI integration for virtual try-on features is highly desirable. - A keen understanding of color theory and style is important. - Ability to create user-friendly and visually appealing interfaces. - Strong communication skills to understa...
...simplify our current logo for me. This version needs to be reduced to a basic outline and designed in a minimalist style that's ideal for embroidery on t-shirts and hats. The logo may be repositioned to the right side, and the company name on the left side to fit the dimensions. The tag line "Flow Freely with Spotless RV Tanks." can be removed or relocated if needed for fit. Key Requirements: - The final design should be 2-1/4" tall x 4-1/2" wide. - You should simplify the logo while ensuring that the main elements - the company name and the symbol - are still clearly recognizable. Deliverables: - The logo should be provided in a PSD file format. Skills and Experience: - Proficiency in graphic design and logo s...
I need a catalog to be designed keeping a classic and elegant aesthetic in focus. This catalog should function as a product showcase for my clothing and apparel line. Key Requirements: - Outstanding design skills, preferably in the fashion industry - Able to deliver a classic yet engaging aesthetic - Experience in catalog layout design. The goal is to create a captivating and beautiful product story that will inspire and engage potential customers. If you have a background in clothing and apparel design, it will be beneficial. Please share examples of similar work while bidding. We are exporting to Europe and other Asian countries.
I'm in need of assistance in registering my business for GST. The primary reason for this is to ensure we are in line with all legal requirements. Key requirements include: - Registering our sole proprietorship for GST - Ensuring full compliance with the legal mandates for GST registration The ideal freelancer for this project should have: - Proven experience in GST registration - Understanding of the specific requirements for a sole proprietorship - Excellent knowledge of the legal frameworks for GST compliance Please get in touch if you meet these requirements and can help me complete this process promptly and accurately.
Project is basically about reading data from file and then using algorithms and data structures sort those data as its needed and then write short documentation...I will also need you to explain me everything you made, how it works etc...Project consists of 4 chapters...1 chapter will be pinned
...google map locations, etc. to assist along with any setback requirements. - The design should be in line with the provided CAD files for similar developed sites. - The primary focus is on space requirements for the new structure and feasibility of using the land for the intended use. - Turn around time is important. Prefer turn around time of 24 hours or less. Ideal Skills: - Proficiency in civil engineering and land development. - Prior experience with site plan layouts and CAD software. - Strong attention to detail and ability to incorporate specific design requirements. - Good communication skills for collaboration and sharing progress updates. If you're well-versed in these areas and can deliver a comprehensive,...
...create several tables starting from the attached files starting from input file 1 1- In input file 1 you need to filter the data in column B and take into consideration only "Order payment" and "Refund". 2- Filter the rows of input file 2 (attached), column D "Product Details" so that the different product details appear only once and report them in the VAT output file so as to have only 2 Product Name columns (in which the "product details of input file column 2" are listed. (example VAT file attached) 3- The app must check that all the lines present in column D "Product details" of the input file 1 are present in column A of the VAT output file and we have a value in column B. If there are lines that are no...
...seeking a skilled and experienced civil designer to help me maximize the use of my 7-acre property as a semi-truck and RV/camper/boat storage parking area. Your challenge is to design a park that efficiently uses the space, while considering property setbacks, our proposed pond location, and nearby wetlands. Key Project Features: - Property line, road, and wetland setbacks: Your design must incorporate these elements as per local regulations. - Parking Area: I need as many spaces as possible. To meet this requirement, strategic vehicle circulation routes would be beneficial. - Landscape Buffer: Including this in your design might be necessary. - Pavement Material: Gravel is the preferred material for this project. - Property is located along a busy I...
I'm looking for a skilled React developer who can assist in changing a Stripe integration to specifically for the payment form. - The integration should support recurring payments. - The payment form needs to collect the user's Name, Email, and Phone number. Ideal candidate: - Proficient in React and has experience with payment gateway integrations. - Familiarity with is a plus.
...seeking a creative and experienced video editor to create a captivating YouTube introduction video to increase the average view duration of my posted content. This video is primarily targeted at young adults and business professionals. - Objective: The aim is to create a video that will hook my viewers, encouraging them to watch more of my posted videos, hence increasing the average view duration. - Video Content: The video will be repurposed from the original recording. - Desired Video Length: The video should be anywhere from 30 seconds to 1 minute long, capturing the audience's interest from the get-go. Ideal Skills: - Experienced with video editing in line with YouTube's format and general style. - Ability to create content that appeals to a m...
...on WordPress, and will require interns, who will be given adequate training to work on this project. Your responsibilities will include: - Designing and structuring a blog that's user-friendly, easy to navigate, and visually appealing - Creating informative and engaging content that's daily updated, appealing to a general audience - Implementing AI tools to assist in content creation The ideal candidate should have the following skills/experience: - Proficiency in WordPress, with prior experience in blog creation - Strong writing and editing skills, ensuring content is engaging and informative - Familiarity with AI tools, or a willingness to learn and adapt to using these tools - Prior experience in creating content f...
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...for a power electronics control system. The project involves using an Arduino DUE and the IMC101T T038 motor controller. The software should control and regulate both the grid side and machine side using Space Vector PWM (SVPWM). Communication between the Arduino and other components will be handled via serial communication. Additionally, the system should include a quadrant display using 4 LEDs to indicate whether it is operating in motor or generator mode. All datasheets and circuit diagrams will be provided. Key Responsibilities: Control and Regulation: Implement SVPWM on both grid and machine sides. Grid-side control: Adjustable power factor (cos(φ)), current, and power. Machine-side co...
I'm looking to develop an Android app using .NET MAUI that focuses on facial detection and tracking for attendance monitoring. Key Requirements: - **Facial Detection:** The app should be able to detect faces in real-time. - highlight detected face with rectangle shape - **Server Communication:** Once faces are detected, the app needs to send this information to a server automatically. - **Attendance Tracking:** The primary goal of the app is to leverage this face recognition technology for attendance tracking purposes.(but no need do any page for this now ) Ideal Skills: - Proficient in .NET and MAUI platform for Android development - Strong experience with facial detection and recognition technologies - Prior work on real-time server communication from ...
...programmer to create a sensor-data generator for the website www.voeazul.com.br. The objective is to send a POST request to the site with valid sensor-data in order to obtain a particular cookie (_abck) for data analysis purposes. The sensor data to be simulated includes mouse movements, keyboard interactions, and browser interactions. Key Requirements: - Create a sensor-data generator in Java or python3 - The generator should simulate mouse movements, keyboard interactions, and browser interactions - The sensor-data should be valid enough to trigger the generation of the _abck cookie upon sending a POST request to Ideal Skills and Experience: - Proficiency in Java/python3 programming - Experience in web scraping and aut...
I'm looking for a creative specialist who can handle content creation and graphic design for my Instagram account. Key Tasks: - Crafting engaging, original and on-brand content for my Instagram account, focusing on brand promotion. - Designing visually appealing graphics that align with my brand's color scheme. Ideal Candidate: - Proficiency in graphic design and content creation for social media platforms, especially Instagram. - Strong understanding of brand promotion strategies on Instagram. - Ability to follow a minimalistic color scheme in line with my brand's guidelines.
...code using JavaScript, HTML5 or using Python, so experience or proficiency in this language is crucial. Key Requirements: - Users should be able to drag and drop objects using mouse or in case of mobile- fingers. - It should offer a moderate level of interactivity. This includes features such as adjusting quantities and temperatures. If a user pours something in a beaker, it should show the beaker full. If emptied, beaker is empty. - Vector images of lab equipments like Test tube, beaker, burner etc can be found online. Ideal Skills: - Proficiency in Python or JavaScript. You may use CreateJS libraries. If you are a programmer with a passion for chemistry, this is a great opportunity to combine your skills in programming and knowledge of che...
...detailed renderings of both exteriors and interiors across a line of residential buildings. I need to get an estimate on the project outlined below. DELIVERABLES This project has two parts: - Static renders: There are six structures. Each of the six structures will need four exterior renders from different angles and in different environments and two interior renders, for a total of 36 final renders (six per structure). - Configurator renders: This part is a bit more complicated. Each of the six structures will be used in an online configurator tool that allows visitors to change aspects of the exterior to see what it looks like with different colors and finishes. See below for parameters: - Only one angle for each structure - Three colors ...
I'm currently facing an issue with my MySQL replica. Although there are no errors, the data isn't being synced and the "Seconds_Behind_Master" is consistently increasing. I'm looking for a professional who can help me with this problem. I can't give you access to the server(s) but we can troubleshoot together. Key Requirements: - Expertise in MySQL command line - In-depth understanding of MySQL replication mechanisms - Experience in troubleshooting replication lag - Ability to work quickly and efficiently Max 50 euros. Thank you.
...unique abstract graphics for a line of t-shirts primarily targeting young adults. The designs should be trendsetting and appeal to their creative and vibrant tastes. Skills and Experience required: - Proven experience in Graphic Design, specifically in t-shirt designs - Proficiency in design software including Adobe Illustrator and Photoshop - Experience in creating abstract art designs - Ability to understand and connect with the intended audience demographic What I need from you: - Develop captivating and innovative abstract designs for my t-shirt line - Ensure designs resonate with the tastes and preferences of young adults. Your designs will be a crucial part of my brand identity. I'm counting on your creat...
Hello! I have a small video game project (art installation in the form of a video game) in Unreal Engine 4.27 and I need your help. I need you to: 1) make an API that collects "hate speech" from social media (one version for English, one for Serbian) and make it appear periodically in my game level 2) make it so that a robot voice reads that text (one version for English, one for Serbian) 3) export it for a virtual reality headset (making it app-store ready) I already made the environment , UI design and particle effects. Please let me know how much time you will need for this project.
...high/low with a labeled line. This line should disappear once the level is tested by price touching it. I will send a video to those interested to show what I am referring to. The script should: - Automatically mark a 60-minute high/low with a labeled line. -The 60 minute high/low will show on ANY timeframe chart. For example, if I'm looking at a 60 minute chart and 5 minute chart side by side, and both have the new indicator on them, the 60 minute lines should be the same on both charts. I will be adding this indicator to many charts and the timeframes will all be different, but they should all pull their lines from the untested 60 minute high/low. - Make the label "H1" until the level is touched by the price - Remove ...
...blocky and reasonably easy to draw. It doesn't need to be very detailed. Drawings with dimensions will be provided, as some machines are customized and have different dimensions (but same shape). If successful, we will follow with more work to do the interior design of our new lab using the aforementioned machines. Requirements: - Interior Design Modeling experience - Level of Detailing: I'm looking for moderate detail with some basic textures, giving a realistic feel to the model. - Experience: Prior experience in interior design modeling is a must - Communication: A clear and open line of communication is crucial. I will give you a rough idea of what I'm looking for, but I'm open to suggestions and iterations. If you�...
...successful the deployment must be: * Entirely automated using CloudFormation and bash scripts. * The landing page must be a public page protected with a username/password authentication block, this should rely upon CloudFront to perform authentication. The username and password should be configurable in the CloudFormation template. The landing page can be simple HTML that displays the username input, password input and login button. * A user friendly domain name should be configured via Route53 that is configurable in CloudFormation. The domain name can be provided if required. Obviously a AWS TLS1.3 PKI certificate is also required. * Behind the landing page is WebGoat running as Docker container. The container should run in ECS FarGate using the Dock...
I'm looking for an experienced Arduino and ESP32 LVGL programmer who is able to Build arduino code for a Waveshare ESP32 s3 Touch LCD 4.3 and recognize data from I2C ADS1115 interface a display grafically Display have to rappresent data in 4 different page changeable touching icons placed in down part of display In each page are displayed more rounded bar with % value received from 3 x ads1115 i2c connected Key Responsibilities: - Program the ESP32 to recognize and interpret the data from the I2C ADS1115 sensor module - Integrate a responsive touchscreen control and an LCD display on the Waveshare ESP32 s3 Touch LCD 4.3 - Ensure the system is user-friendly and able to display the sensor readings accurately - Implement ...
...professional mobile app developer to help in the creation of an educational app that will revolutionize the way users learn. Key functionalities: - Application of core educational tools and principles - User-friendly interface design Although the operating system compatibility is yet to be decided upon, the developer should ideally have experience with both iOS and Android. Showcase of cross-platform app building capabilities would be a significant advantage. A passion for creating educational tools and initiatives is paramount, and experience in that specific field would put you to the front of the line. Skills and Experiences: - Proven experience in mobile app development - Familiarity with common mobile interface designs - Strong understa...
