Hire Top Freelance D3.js Developers

Maneet Goyal

### About Me 👋 **Full-Stack Engineer | React + TypeScript, Node + AWS | Dashboards, Real-time, Electron/Tauri** I build production software end-to-end: React/TypeScript on the frontend, Node + AWS on the backend, and the “make it reliable” parts like tests and CI/CD. Most of my work is dashboards and data-heavy UIs, real-time features (SSE/WebSockets), and desktop apps with Electron/Tauri. I care about clean architecture, typed APIs, and performance that users actually feel. If you need someone who can jump into an existing codebase, ship fast, and keep releases stable, I’m a good fit. **What I do** * Web apps: React, TypeScript, Next.js * Dashboards & charts: ECharts/D3, large datasets, smooth UX * Backend & APIs: Node (REST/GraphQL), auth, caching, queues * AWS: Lambda, API Gateway/AppSync, Cognito, DynamoDB, S3 * Desktop: Electron/Tauri, IPC, auto-updates, signing/notarization

Johnny B. (Ionică Bizău)

Freelance D3.js Developer5.0 (1762 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. 🐧🍏

Varun Jewalikar

Hi! I love Java, Python, Javascript, distributed systems, large scale systems, machine learning, natural language processing and image processing. My work has been featured on the AWS blog (https://tinyurl.com/chaosrunner), The Guardian (https://tinyurl.com/topvocab) , Billboard.com (https://tinyurl.com/topprofane) and other print/digital publications. I also own Amazon's chaos testing framework called AWSSSMChaosRunner (https://github.com/amzn/awsssmchaosrunner). I am a Senior Engineer at Amazon's Prime Video and have worked on scaling backend systems to millions of transactions-per-second, utilising various cloud technologies and primarily working with Java, Kotlin and Javascript. This involves image/audio/text processing systems, creating & managing databases/APIs for mobile/web applications and everything in between. I have 15yrs+ experience with backend engineering, cloud tech, nlp, signal processing and image processing. I can help you with any of these topics. I also love hackdays and have attended 20 hackdays in Europe in the last couple of years and collaborated with beginners/experienced developers on different kinds of projects. Thanks for reading and hope to talk to you soon!

Emmanuel Inyang

I am a highly skilled software engineer with 5 years of experience, proficient in transforming wireframes into MVPs, architecting scalable microservices, and developing single-page applications. My technical expertise includes backend technologies like FastAPI and Flask, frontend proficiency in React and Vue, testing excellence, and database management. Key strengths include problem-solving, attention to detail, and thriving in collaborative environments. I excel in team management, fostering growth and productivity, and mentoring team members. Currently seeking a full-time role to leverage my skills and contribute to an innovative organization, with a focus on leadership growth and professional advancement.

Robert Lee

Passionate and creative frontend developer with 7 years of experience dedicated to building and optimizing the performance of user-centric, high-impact web development & mobile applications and solutions for nationwide and global companies. Leverage technical, analytical, and problem-solving skills to create dynamic, high-speed websites, apps, and platforms fueling competitive advantage and revenue growth. More concerned about reputation and building client relationships. Here are some of my specialties: * Experience with MERN Stack (MongoDB, Express.js, React.JS, and Node.js) * Full Stack development using Node.js, React.js, Typescript, etc. * Experience with AWS * REDIS, Redux, Ember,Tailwind CSS, D3.js, Bootstrap * Clear agreement on scope and cost before initiating any project. * Following project timeline accurately to ensure delivery of the product on time. * Providing updates every day. * Responding to clients quickly * I provide quick service

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.

Nejc Trnjanin

* Experienced full-stack web developer with a strong passion for JavaScript ecosystem. I really love React, Node.js, Selenium and Material UI. * Over 12+ years of expertise in UI web development, proficient in utilizing modern web technologies and best practices. Extensive expertise in the development of Single-Page Applications (SPAs), with a focus on providing a validated, certified high quality UI and an optimal UX. * Have driven from ground up large-scale SaaS solutions for the Energy & Semiconductor industry by personally managing and mentoring a team of 10+ software engineers. Skilled in writing clean, reusable & testable code using latest software design principles with personal emphasis on JS / TypeScript (React, Node.js). * Focused on improvement initiatives aimed at enhancing the ecacy of QA activities and elevating the standards of products and services. * Known for building bridges between stakeholders and customer requirements through smart planning and innovative thinking, leveraging KPIs, regulations, and quality standards. Demonstrated an exceptional strength for comprehending a broad range of engineering skills, enabling me to successfully identify and resolve issues across the entire project life cycle.

Abhishek Arora

I succeed or your **money back**. 💰 P.S.: I am travelling till August 2, so you can expect delays in response Diving into, understanding and debugging codebases alien to me is one of my core expertise. Welcome! 👋 As a Senior Software Engineer, I have sharpened my leadership and problem-solving skills to provide top-notch software solutions. With 8+ years of experience in web development using React.js, Node.js, Vue.js and Python, I have successfully built products used by top NBFCs and unicorns in India. My strengths lie in design, innovation, architecture, development, and deployment of web applications. I have strong operations acumen and can lead software and web development projects from system architecture design to end-to-end engineering and management. With a proven track record, I have effectively managed teams of up to 9 engineers to deliver business services to valued clients. ====== How does it work? We start a 1:1 session. Both of us join the zoom call. You start the session timer and pause it. You share your screen and explain the problem statement. I do some research if necessary. We resume the timer and I try to help. Full refund if I do not succeed.

Philip Warkentien II

### About me I’m a **Staff-level Frontend and UI Engineer** with **13+ years of combined professional and teaching experience**, specializing in **UI engineering**: Design Systems, enterprise CSS, responsive layouts, accessibility (WCAG), data visualization, and web animations — with deep expertise in **React, JavaScript/TypeScript, HTML, and CSS**. Throughout my career, I’ve consistently operated as **the bridge between Design and Engineering**, translating ambitious visual and UX goals into **scalable, performant, and accessible frontend systems**. My work focuses on aligning design intent with real-world engineering constraints while maintaining long-term maintainability and code quality. I’ve led and contributed to **Design System initiatives**, built **data-visualization–heavy charts, tables, and UIs**, improved **localization workflows**, and helped raise **UI standards across critical user flows** in large, high-impact products. A recurring part of my work involves **untangling legacy stylesheets** and transforming them into **clean, enterprise-grade CSS and component architectures**. In addition to hands-on engineering, I bring **5.5 years of experience as a Udacity mentor**, where I guided developers through frontend, UI, and JavaScript projects, reviewed real-world codebases, and helped engineers progress from fundamentals to **production-ready practices**. I mentor because I enjoy helping developers move beyond surface-level fixes and truly understand **why UI breaks** — whether it’s layout mechanics, rendering behavior, accessibility pitfalls, or component design.

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..