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Top freelance JavaScript developers available to hire

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Freelance JavaScript Developer - Adrian Segui
Freelance JavaScript Developer5.0 (201 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 - SALAKO TESLIM
Freelance JavaScript Developer5.0 (21 reviews)

Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.

Freelance JavaScript Developer - Kodaolu Idris Aremu
Freelance JavaScript Developer5.0 (69 reviews)

Engineer with a strong sense of appealing user interfaces, efficient software design, and outstanding online platforms. I use my stack to create scalable and high-performing web solutions. I am a full-stack software engineer who is passionate about creating amazing products and collaborating with other exceptional engineers to find quick fixes for issues.

Freelance JavaScript Developer - Ajay Sharma
Freelance JavaScript Developer

I want to become a Codementor because I enjoy sharing my knowledge and helping others grow in their careers. I find it rewarding to evaluate candidates, provide constructive feedback, and contribute to building strong, skilled teams.

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 (250 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 - Alan Santos
Freelance JavaScript Developer5.0 (46 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 - *SAS*, *STATA* - *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 - Olajide Olanrewaju
Freelance JavaScript Developer5.0 (244 reviews)
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I am a **Multi-talented** professional adept in **Full Stack Web Development**, **Web Security Research**, and **Robotics Engineering**. As a dedicated Web Security Researcher and ethical hacker, I uncover vulnerabilities and mitigate security risks, bridging the gap between development and cybersecurity. Additionally, as a Robotics Engineer, I design and build sophisticated robotic systems, applying my deep understanding of mechanics, electronics, and programming. Passionate about crafting clean, scalable code and innovative robotics solutions, I contribute to projects that prioritize both robust development, cybersecurity practices, and cutting-edge robotic technology.

Freelance JavaScript Developer - Warith Omoyele
Freelance JavaScript Developer5.0 (141 reviews)
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With years of experience in finance, web3, and education, i specialize in developing cloud-based applications. I've led key roles in large projects, optimizing processes, server managements, and system performance for efficiency. My dynamic problem-solving approach drives creative solutions, always staying updated with the latest technical breakthroughs to enhance my skills.

Freelance JavaScript Developer - Magesh S
Freelance JavaScript Developer5.0 (1 reviews)

Hi, I’m a senior software engineer with over 15 years of hands-on experience building real-world web applications using Ruby on Rails, React, JavaScript (Node.js), and SQL. I’ve helped early-stage startups launch quickly, modernized legacy systems, and mentored hundreds of developers through their coding journeys. Now, I’m bringing that experience to Codementor to help you level up—whether you’re stuck on a bug, building your portfolio, or scaling a startup. 💡 **What I Can Help You With:** → Debugging tricky Web development-related issues → Code reviews + clean architecture feedback → Designing scalable backend and frontend solutions → One-on-one mentoring & pair programming → Career growth guidance for developers (interview prep, resume reviews, etc.) → Building MVPs and making smart tech stack decisions → Writing developer-friendly docs & onboarding flows 🚀 **Why Work With Me?** I’m friendly, patient, and laser-focused on helping you make progress. Whether you’re a beginner looking for clarity or a founder needing quick technical direction, I tailor my approach to your specific goals. Let’s solve your problem together, and make sure you walk away smarter, faster, and more confident. 🙌 **New to Codementor, Not New to Code** While I’m new to Codementor, I bring 15+ years of real-world experience in Rails, React, and full-stack development. If you’re one of my first clients here, you’ll get **discounted** sessions, extra support, and a chance to help shape this mentoring space with your feedback. Let’s ship great code together—and build something awesome.

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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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