Hire Top Freelance D3.js Developers

Camille Mizony

With 12 years of work experience as a Software Engineer, most of them at Airbnb, and now a startup Founder *(visit https://aicards.io)* I would love to share my professional knowledge to help people. I am also happy to provide AI expertise and help make some AI profile cards to showcase your portfolio and increase your **professional visibility**. On the technical side I can help with full-stack applications at micro & macro level as well as any entrepreneurship questions. If interested you are also welcome to join my newly created **"TechByte" community** for knowledge sharing *(visit https://techbyte.cards)* where you can also scroll to the bottom and AI chat with me to see my full professional profile. If you are looking for long term relationships, grow your career and projects together I would be happy to help. Feel free to reach out at any time!

Johnny B. (Ionică Bizău)

Freelance D3.js Developer5.0 (1748 reviews)

Hey! I am Johnny B. 🙏 (Actually, my Romanian friends call me Ionică, which in English is basically: Johnny). ...and I 💖 emojis! I started coding around 2010, starting with simple static websites, WordPress applications, and then tried Node.js for the first name around 2012. Since then, I have been working with Node.js. I like it a lot. Currently, I do the best in: ★ Node.js 🚀 ​ ​ ☆ Command line tools ​ ​ ☆ Express.js ​ ​ ☆ Passport ​ ​ ☆ Raw/minimal code, without frameworks (e.g. simple HTTP server) ​ ​ ☆ Using npm ​ ​ ☆ Creating npm packages for Node.js (and for the front-end as well) ​ ​ ☆ Scraping the web ​ ​ ☆ Automation of repetitive tasks ​ ​ ☆ Image processing ★ JavaScript ✨ ​ ​ ☆ Creating and importing libraries ​ ​ ☆ jQuery (creating plugins, using them etc) ​ ​ ☆ Scraping ​ ​ ☆ Automation of repetitive tasks ​ ​ ☆ Publishing npm packages ​ ​ ☆ SVG (SVG.js, d3.js) ★ HTML & CSS 🎨 ​ ​ ☆ Fixing CSS quick issues ​ ​ ☆ Implementing mockups ​ ​ ☆ Making the page responsive ​ ​ ☆ SEO tips & tricks ★ Command line 💻 ​ ​ ☆ Shortcut tips ​ ​ ☆ Creating command line tools ​ ​ ☆ Using VIM & Tmux ★ Code Review 👀 ​ ​ ☆ I do code review offline, for Node.js, JavaScript, eventually CSS. ​ ​ ☆ Can be done in a live session as well. ​ ​ ☆ Security checks ​ ​ ☆ I point things that can be done in a better way ★ Using Git & GitHub/GitLab/BitBucket etc. 😸 ​ ​ ☆ Introduction to how Git works ​ ​ ☆ Using Git hosting services (e.g. GitHub, GitLab, BitBucket etc) ​ ​ ☆ Top Git commands ​ ​ ☆ Shortcuts If I can help, I will definitely do it, as long your app is not promoting things that tend to be potentially immoral. For example, I'm happy to help you build an e-shop, but I will probably not build an e-shop designed specifically for selling wine since I am against the use of alcohol for drinking. ♦ 🚀 Node.js: 9 years of experience, ~700 packages published on NPM ♦ 💛 JavaScript: 9 years of experience, lots of libraries you can download freely (https://goo.gl/ewoQsK) ♦ 🗣 Fluent in speaking English & Romanian, and comfortable in Spanish & Portuguese ♦ 😸 GitHub Enthusiast (follow me: https://github.com/IonicaBizau) ♦ 😻 Git & GitHub power user ♦ 🍀 Comfortable with MongoDB (especially, the native driver for Node.js) ♦ ❇️ I will not charge you if I can't fix your issue. Why you can trust me: ★ I am a vegetarian. I have never eaten meat. 🍍🥑🥗 ★ I have never drunk wine, beer, etc. Water is the best. 💧 ★ I work for 6 days, and I rest on the 7th day. That's why I am *not* available on Saturdays (specifically between Friday's sunset and Saturday's sunset, my location at the time—you can my timezone a little bit below). 🙏 ★ I sleep between 9:18 PM and 4:42 AM. Depending on your timezone I can wake up earlier if you book a session with me. 💤 ★ I am a musician (pianist and organist). 🎹 ★ I use VIM on macOS and Linux. 🐧🍏

Kostychev Konstantin

Experienced Full Stack & Blockchain & AI/ ML Developer with 10+ years of success building decentralized, real-time web applications and optimizing legacy systems. Specialized in EVM smart contract development, crypto payments, and Web3 integrations (Metamask, WalletConnect, Coinbase Wallet). Also Specialized in LLMs (GPT-4, LangChain, Haystack), RAG pipelines, and intelligent agent workflows. Proven track record in modernizing codebases, scaling blockchain infrastructure, and enhancing UI/UX fsor Web3 ecosystems. Adept at Solidity, Node.js, Golang, React, and cloud-native DevOps. Passionate about revolutionizing digital experiences in music, finance, and identity through blockchain.

Nick Karnik

With over 25 years in the software industry, I bring a robust mix of hands-on engineering and management expertise. Currently, I lead the teams for Gemini Code Assist at Google, where we develop and scale backend systems and extensions for both VSCode and IntelliJ to deliver high-performance code assistance. As a startup founder and an innovator, I enjoy wearing multiple hats, diving into new technologies, and taking prototypes from rapid development to production-scale systems. Proficient in over 15 programming languages, I primarily focus on JavaScript, TypeScript, Node.js, Electron, and Web technologies, with occasional use of Python. My approach is rooted in scalable solutions and inspiring teams to deliver impactful results.

Sohaib Asghar

With 6 years of experience as a Full Stack Developer, I specialize in building scalable applications, ensuring high performance and efficiency through robust system architectures. I focus on problem-solving and writing clean, maintainable code with an emphasis on Test-Driven Development (TDD) to ensure reliability and minimize defects. My expertise includes designing and optimizing databases, integrating AI solutions, and contributing to open-source projects. I am passionate about creating impactful software that enhances user experiences and delivers effective, sustainable solutions.

Fazal Ahmad

**Software Engineer** with **15+ years** of experience in **VBA, C#, .NET Core, ASP.NET, C++, Node.js**, and _AI-driven applications_. Skilled in **Agile methodologies**, including _Scrum-based delivery, sprint planning_, and _backlog management_ using tools like **Jira** and **Azure DevOps**. Expertise in **cloud computing** (_Azure_), **system architecture**, and **CI/CD pipelines**. Strong background in **Machine Learning (ML)**, **Natural Language Processing (NLP)**, and **Sentiment Analysis** using _Stanford NLP, Custom Corpus_, and _SentiWordNet-based models_. Proven track record in _optimizing performance, delivering scalable solutions_, and **leading cross-functional teams** toward high-impact outcomes. _Passionate about continuous learning and fostering engineering excellence._

Aswin Murugesh

Programmer and a Technical lead with hands on experience in Python, Javascript, Django for the past 5 years. I also have a good amount of DevOps experience.

Kamran Rizwan

Senior Software Engineer with 8 years of experience of learning and sharing knowledge in JavaScript, React, Typescript, Redux, Node, HTML/CSS. I'm enthusiastic to learn new stuff and sharing my knowledge of how things work.

S Morgan Robertson

I am a Salesforce technical architect obsessed with the idea that knowing how can only get you so far, but knowing why is invaluable. In everything I do on the platform, I try to get to the why of the issue. If I do, I never have to solve the same problem twice.

Maneet Goyal

I’m Maneet Goyal, a full-stack software engineer with **6+ years** building high-impact web products. As Principal Developer at Manufac Analytics, I lead a React + TypeScript PWA that manages manufacturing-lab data, designing compliant data models and real-time dashboards with Apache ECharts. My visualization work spans D3-powered heatmaps for Cylerian’s cloud-security suite and chart APIs shipped at Esri’s ArcGIS Charts team. On the tech side, I wield React, Material UI, and D3/ECharts on the front end; Node, Python, PostgreSQL/Redis/MongoDB on the back end; and a rich AWS toolkit—Amplify, EC2, RDS, IoT, Cognito, DynamoDB & CloudFormation—deployed via GitHub Actions CI/CD. Rigorous testing with Jest and Playwright ensures reliability across every release. I mentor through hands-on guidance: pair-programming, architecture white-boarding, and actionable code reviews that convert theory into production-ready wins. Whether you’re wrangling complex React state, architecting a serverless AWS backend, or polishing data-viz UX, I’m excited to help you level up. Reach me anytime, and feel free to explore my work at **github.com/maneetgoyal**.