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Top freelance JavaScript developers available to hire

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Freelance JavaScript Developer - Adrian Segui
Freelance JavaScript Developer5.0 (187 reviews)

Working in the IT sector for more than 10 years. With over 10 -years of freelancing and professional experience taught me all kinds of frameworks and languages, ranging from React, Angular, Vue, Node js, Express js, React Native, Redux, Rx JS, JavaScript, Typescript, WordPress, PHP, MySQL, MongoDB, Firebase, Sqlite, Postgresql, ES5+, Python3, Machine Learning, Deep Learning, RNN, CNN, Android Java/Kotlin, iOS Swift/SwiftUI, C/C#/C++, .Net, Assembly, VBA, VB, Excel Macro, Java, Spring Boot Micro-services, Zoho, Salesforce, Hubspot, R, Shiny, STATA, MATLAB, Google Sheet, App Script, Bubble io, etc. Over my long career, I have come across all kinds of challenges and gained vast experience with different kinds of industries like portals, medical industry, perception exercise, employee management, etc. I have good experience with frontend development using React JS along with Typescript, Firebase, GraphQL, React Native, Native Script, React, Material UI, Ionic, Node.js, Web Sockets, and real-time communication. I have also worked on containerization technologies like Kubernetes, Docker, AWS, GCP, Azure etc. I am very good with backend technologies as well like Java Spring boot, Microservices, MySQL, Postgres, Elasticsearch, AWS/Google integration. Please contact me to get the result done in a professional way.

Freelance JavaScript Developer - Shriram
Freelance JavaScript Developer

I'm a Freelance Developer passionate about Tech. and more than that its applications in every day life only wherever appropriate. Develop or Create responsibly. Use responsibly. I hope that Tech. can help us live a better life instead of its growth and development at the expense of our lives. I write meaningful software and good quality code, and strive to develop a good product. I'm eager to apply my skills , mentor and help fellow developers code better and accomplish their goals

Freelance JavaScript Developer - Daniel Uche
Freelance JavaScript Developer5.0 (55 reviews)

Daniel Uche is a senior Full Stack software engineer with great skills. I live and breathe code, as a software craftsman, I craft code that scales for web and mobile. I have built applications that serve millions of user traffic. Feel free to hit me up on any problem you might have across **React**, **Redux**, **Node**, **JavaScript**, **Mobile app**, **Software Architecture**, **Software Engineering**, **Database Design**. I can help make complex concepts look simple. I can also help with your Software Analysis project using **LLVM Compiler Infrastructure** Also I am familiar with CI/CD, container container orchestration and elastic search and logstash ecosystem.

Freelance JavaScript Developer - Olamide Soyoye
Freelance JavaScript Developer5.0 (208 reviews)
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As a seasoned engineer with over five years in complex software systems across multiple industries (such as Logistics systems, HealthTech, EdTech, among others), I bridge the gap between complex technical challenges and accessible solutions. My expertise in cloud-based applications isn't just about writing code, it's about making technology work for people. Whether you're struggling with debugging code, designing efficient algorithms, or navigating complex system architectures, I've been in your shoes. I've developed enterprise applications from the ground up and guided hundreds of learners through challenges ranging from basic syntax errors to advanced architectural decisions. **What sets me apart? I don't just solve problems, I help you understand them. My approach combines hands-on engineering experience with a talent for explaining complex concepts in straightforward terms. From untangling complex code issues to optimizing system performance, I translate technical challenges into clear, actionable steps**. My greatest achievement isn't the systems I've built, it's watching my mentees transform from curious beginners to confident professionals. This journey has sharpened my ability to meet you exactly where you are—whether you need an expert to help resolve a persistent bug or a patient guide through new programming paradigms. **Let me help you turn technical obstacles into opportunities for growth.**

Freelance JavaScript Developer - Nicholas Piano
Freelance JavaScript Developer5.0 (2 reviews)

I am a seasoned software developer with extensive experience in full-stack development and Web3 integration, specializing in building scalable, high-performance applications. As Co-Founder and CTO of Tela Network, I led the creation of a micro-consulting chat platform that combines blockchain-based payments with Stripe, allowing users to monetize their expertise. My role encompasses frontend and backend architecture, smart contract development with Solidity, and task queue implementation using Redis. I work extensively with React, TypeScript, Python (Django and FastAPI), and cloud solutions on AWS and Digital Ocean to deliver seamless user experiences and scalable microservice architectures. Prior to Tela, I contributed to various impactful projects across industries, including leading frontend development for a DeFi platform at Voltz, designing user interfaces for enterprise applications at Utility Warehouse, and enhancing Shopify integrations at CartHook. My technical expertise spans modern frameworks and tools like Node.js, Docker, Kubernetes, MySQL, PostgreSQL, Ethereum, and TheGraph. With a strong academic background in engineering and astrophysics, I bring a problem-solving mindset and a passion for innovative, data-driven solutions to every project I undertake.

Freelance JavaScript Developer - Alan Santos
Freelance JavaScript Developer5.0 (43 reviews)

*AI-Powered Developer (Web & Mobile & Software & Embed devices)* AI Integrate | AI Agents | Generative AI *Need a boost in your skills or results?* *Read my profile before hiring.* I bring expertise in delivering high-quality projects and results using a wide range of technologies and tools: - *AI Integrate and Machine Learning* ChatGPT, Gemini, Claude Integrating AI models(LLM, NLP, CV) Auto-GPT, BabyAGI, SuperAGI Zapier AI, Rewind AI, Otter.ai Machine Learning, CNN, Keras, LSTM, PyTorch, Tensorflow, Computer Vision, sci-kit - *AI-Driven Frontend* React.js, Next.js, Bootstrap, Javascript, Typescript, MUI, TailwindCSS - *Backend & API & AI agents* Node.js, Express.js, Django, Flask, Ruby on Rails, ASP.NET, FastAPI, and GraphQL. - *AI-Powered Mobile Development* Swift (iOS), Java/Kotlin(Android), Dart (Flutter), React Native, Ionic AR / VR, Unity - *General Purpose Languages*: Python (Pandas, NumPy) C/C++, Java, R, Assembly, MATLAB, Rust, Go - *Scripting and Automation*: Shell scripting (Bash), PowerShell, Lua, and Tcl. - *Database Management*: MySQL, PostgreSQL, MongoDB, SQLite, Firebase, MariaDB, Redis, and Cassandra. - *Software*: C#, Asp.net - *DevOps & Cloud*: Docker, Kubernetes, Jenkins, Terraform, Ansible, AWS (EC2, Lambda, S3, DynamoDB), Azure, and Google Cloud Platform (GCP). - *Tools & Platforms*: LaTeX, Excel (advanced functions, VBA), Jupyter Notebooks, Power BI, MS Power Automate, Tableau, and Elasticsearch. - *Miscellaneous Skills*: - *Automation*: Selenium, Beautiful Soup, Puppeteer. - *Data Analysis & Visualization*: Matplotlib, Seaborn, D3.js. - *Version Control & Collaboration*: Git, GitHub, GitLab, Bitbucket. - *Software Development Methodologies*: Agile/Scrum, Test-Driven Development (TDD). I can assist you with: - Adding *extra hands* to your team to speed up development. - *Reviewing, debugging, and optimizing* your code for performance and maintainability. - *Collecting, analyzing, and visualizing data* to build insightful reports, presentations, and dashboards. My ultimate goal is to *over-deliver* and ensure you're 100% satisfied with the results. If my profile resonates with your needs, feel free to send me a message. Let's bring your project to the next level together!

Freelance JavaScript Developer - Heather Soron Kaminski
Freelance JavaScript Developer5.0 (5 reviews)

I'm a multi-talented senior-level developer with a focus in webdev and Linux servers, and have experience working with various sorts of code on various projects. I have very strong troubleshooting skills, am adept at learning new tech, and have some secondary cybersecurity experience (such as conducting informal security audits). I'm enthusiastic about sharing knowledge, am practiced at explaining how code works, and am eager to help people learn about programming! Availability is typically 11am - 11pm local time (UTC+7), although I have an hour or two of flexibility on that.

Freelance JavaScript Developer - Zack Plauché
Freelance JavaScript Developer5.0 (199 reviews)

American (native English speaker) living abroad 🙂 Recently evacuated from Ukraine. I teach people how to get projects built fast and become successful developers 🔥. **Free Resources** ▶️ I have a growing [YouTube channel](https://www.youtube.com/channel/UCPsi8tNv7UuNRljOTK5sl4A) where I cover popular requests I get. 👾 I also have a growing [Discord community](https://discord.gg/qA2jRybdRy) with dedicated developers **Why Work With Me?** ⭐ More than 250+ 5 Star Reviews (see my [Wyzant profile](https://www.wyzant.com/match/tutor/87903194) too) 🗽 Native English speaker ✅ EXTREMELY responsive (from 10am to 10pm Portugal time) 💰 Successfully started and improved software dev careers for multiple clients. ⚪ Able to communicate complex topics simply ❤️‍🔥 Burning passion for coding and teaching 👁️ Can provide Process Maps for visual learners **Refund Policy** 💸 If I'm unable to help, you get a full refund. Easy 🙂 **Backstory** I started programming in 2018 after my mentor told me that it really fits the way I think. Before I started I was learning marketing, working in Facebook Ads and Shopify Stores (with Google Analytics, VWO, and other website optimization softwares), I was more interested in automation, and building to do tasks only once. I started at first learning Python for automation (which is still my primary language and what I really enjoy coding in). Eventually, I learned that by itself, Python isn't that sharable if you want other non-coders to use the my apps, so I grew my way into web development, diving deep into Django, HTML & CSS, building multiple sites with only those to get experience, for example: - My website: https://www.zackplauche.com/ - A mini app I built: https://www.dollarperhourcalculator.com And more :) Then eventually learning JavaScript and the Vue.js framework to take my websites, designs, and User Experiences to the next level, building at first simple apps like my DollarPerHour Calculator (https://zackplauche.github.io/DollarPerHourCalculator/), and more advanced ones, like the current one I'm developing (still in progress, but it's the biggest app I've ever build, using both Vue.js and Django). I've been teaching programming since 2019, and my students have loved me. I have students I work with that have been working with me weekly since I first started (more than 5 years now!). They helped me keep both my coding and teaching career sustainable as I was helping them with their issues, training them to be effective developers, starting my own software agency, and building my own apps. I'm extremely grateful to my students and truly care about and do my best to support their success in whatever their endeavors.

Freelance JavaScript Developer - MOSHOOD SHABI
Freelance JavaScript Developer5.0 (281 reviews)
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A full-stack software engineer with years of experience in the software development industry. I'm an experienced full-stack developer with top-level proficiency in any of the technologies listed below.

Freelance JavaScript Developer - RajhaRajesuwari S
Freelance JavaScript Developer5.0 (2353 reviews)
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MY WORK HOURS : 7AM to 11 PM INDIAN STANDARD TIME . 16 HOURS A DAY :) I am an experienced full stack developer 15 years in the field with consistent knowledge in developing web portals with expertise in all opensource of PHP like Wordpress , Opencart, Oscommerce, Shopify, Magento, Joomla and all frameworks of PHP - cake php , larvel, CodeIgniter, YII . I do also offer services in SEO, Malware removal, speed optimizations , Skilled with Javascript ,Node js and React . Hence moving forward with full stack development Faster delivery and 24/7 communication are my greatest plus. I do have a team of 10 . 2 designers and 8 coders to support on large scale web developments

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Frequently asked questions

How long do JavaScript projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance JavaScript project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance JavaScript request on Codementor, check out our article.

How much does it cost to hire a freelance JavaScript developer?

We don’t charge anything when you post a freelance hiring request for JavaScript developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor JavaScript developers different?

We do a comprehensive technical and communications screen of all JavaScript developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing JavaScript developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your JavaScript project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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