Hire Top Freelance JavaScript Developers

I’m a Full-Stack Software Developer with a strong background in building scalable, user-focused applications using technologies such as Laravel, Node.js, React, Angular, and MySQL. Over the past few years, I’ve developed and maintained complex systems ranging from multi-restaurant platforms and payment integrations to insurance management solutions. I’m passionate about writing clean, efficient, and maintainable code, designing well-structured APIs, and delivering solutions that align with both user needs and business goals.

I’m Tlokotse Mogudi, a passionate Full-Stack Developer skilled in Node.js, NestJS, Laravel, JavaScript, SQL, Docker, and Git. I build secure, scalable, and efficient applications with clean, reliable code. I enjoy solving problems, optimizing systems, and turning ideas into impactful digital solutions. Always eager to learn and grow, I take pride in delivering work that’s both technically sound and results-driven.

✅ 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐀𝐈 𝐀𝐩𝐩 | +𝟵 𝗬𝗲𝗮𝗿𝘀 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝗻 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 💻 Available +40 hours per week 🕓 On-time delivery 🏆 Verified Full-Stack Developer 🚀 Available to start right away! 👉 I have been working for +9 years on the largest IT companies as a web developer. Now I provide great quality on the Upwork for my clients. My goal is to do your business task and help you to earn money! Great communication is my big plus - I am always online when you needed me and I try to understand improve your project! 💬 What Clients said about me: "Working with Eric was a pleasure. He is extremely talented, professional and has an excellent network of developers that he works with to help your project A-Z. Project management, design and vision all in one package! Highly recommend for your project!" -- Eric, Mastery Holdings.co -- "Yehor is an amazing guy! Great programmer. Really detail oriented, was able to take direction and complete task with minimal oversight. Highly recommended!" -- Travis, FuelMarketing -- 🛠 My skillset are: - JavaScript (ES5, ES6), Typescript / Python - HTML5 / CSS3, Sass, Less - ReactJS, NextJS, GatsbyJS, Remix - VueJS, NuxtJS - Angular - Material UI, Semantic UI , Ant-Design, Tailwind, Bootstrap 3,4(Flex, Grid) - Headless CMS: Contentful, Prismic, Sanity.io, DecapCMS, NetlfyCMS, GraphCMS, FireCMS, StatamicCMS, GravCMS - Node.js, Express.js, Nest.js - Django, Flask, FastAPI - Dart, Flutter - v0.dev, Bolt.new, Lovable, Replit, Cursor - ChatGPT-5, OpenAI, ElevenLabs, Deepgram, Vapi - Object Oriented Programming (OOP) - Restful API, Restful API development - MySQL, MongoDB - Docker compose - Github, Gitlab, Bitbucket - React Native / Flutter - Supabase, Firebase - Amazon web services | EC2, Lambda, S3, Apprunner, etc and more. 📩 Send me a message or invitation, and let's build something amazing together. Best regards, Eric.

🟢 Available | 📅24/7 x 🌍Time zones 🟢 🧭 8+ Years of Experience 🧭 🧠 Senior Level of Software Industry 🧠 I’m Dennis, a Senior Front-End Engineer with 8+ years of exp delivering many high-performance, user-centric web, mobile, and PWA applications across real estate, AI, health, fintech, and more. Passionate about the fusion of technology, creativity, and AI, I specialize in AI-powered apps, automation, real-time systems, and immersive 3D/AR experiences—bringing a product-first mindset and startup agility to every project. Available 24/7, I’m your technical partner who thinks like a founder, ships with precision, and communicates like a teammate to help you build fast and confidently. 🎯 Key Areas of Expertise ✅ Frontend Engineering Build scalable web and mobile apps using React, Next.js (App Router), Node.js, Django, FastAPI, and Supabase with a focus on DX, modularity, and clean code in monorepos. ✅ Social Content Generation & Virality Create tools for short-form content (memes, clips, carousels) with GenAI and real-time APIs; automate publishing pipelines across TikTok, X (Twitter), Threads, and Instagram. ✅ Link-in-Bio & Deep Linking Develop branded link-in-bio tools with dynamic deep linking, mobile routing, UTM tracking, and QR flows to boost retention, engagement, and attribution. ✅ 2D/3D Visualization & Interactive UX Render high-performance visuals using Three.js, React Three Fiber, WebGL, Canvas API; experienced with point clouds, spatial data, and immersive analytics dashboards. ✅ Performance & Frontend Optimization Optimize Lighthouse scores, Core Web Vitals, and rendering using lazy-loading, code-splitting, hydration, and tuning React/Next.js apps for scale. ✅ Data Scraping & Normalization Build web scrapers with Playwright, Puppeteer, or headless browsers; structure unstructured data for dashboards, analytics, and AI pipelines. ✅️ AI Agents & Automation Design autonomous agents using LangChain, LlamaIndex, and OpenAI APIs for intelligent task routing, memory management, and workflow automation integrated into full-stack apps. ✅ Product-Led Engineering & Rapid Prototyping Own end-to-end delivery from idea and Figma to code; leverage Turborepo, tRPC, Prisma, Tailwind, and shadcn/ui for fast, iterative, business-focused shipping. ✅ DevOps, CI/CD & Tooling Implement CI/CD with GitHub Actions, Vercel, Docker, Railway; automate testing, previews, deployments, and environment config in modern monorepos and cloud platforms. ✅ Startup & Domain Expertise Led engineering initiatives in fintech, creator economy, music tech, and trading tools; excel in fast-paced, zero-to-one environments owning full delivery. 🏆 Featured Portfolios 🌟 Web based AR/VR Exibition App for Rental & Real Estate (WebGL & Three.js, Luma AI Genie) 🌟 Large-scale Data Anaylytic Platform (D3.js, Visx) 🌟 Booking and Transportation App (Google Map) 🌟 AI Voice Agent for Real Estate (powered by OpenAI & 11Labs) 🌟 Generative AI Social App (text and image generation using GPT-4 & Midjourney) 🌟 AI-Powered Nutrition & Wellness App 🌟 AI Video Editing and Enhancement Application (leveraging DeepMotion & Synthesia) 🌟 AI Chatbot for Customer Support 🛠️ Technologies and Platforms 🧩 Frameworks & Languages: React, Next.js, Node.js, Django, Flask, FastAPI, JavaScript, TypeScript, Python 🧩 Mobile Responsiveness: Tailwind CSS, ShadCN, DaisyUI, Material UI, styled components, SASS/SCSS 🧩 Performance: Zustand, Jotai, RTK, useS, SWR, GraphQL, tRPC, Prisma ORM 🧩 Authentication: OAuth, Better-Auth, Keycloak, Supabase Auth, Firebase Authentication 🧩 Data and Database: Supabase, PostgreSQL, MySQL, MongoDB, Firebase, Pinecone, SQLite 🧩 Cloud and Deployment: AWS (CloudFround, EBS, EC2, S3, Lambda), Firebase, GCP, Vercel, Heroku 🧩 Automation Platforms: Make.com, Zapier, n8n 🧩 AI and LLMs: OpenAI GPT-4/GPT-4o/DALL-E, Claude, Gemini, LangChain, Perona AI, Stable Diffusion, Midjourney, Whisper API, 11Labs, TTS/STT frameworks, ComfyUI (ControlNet, OpenPose), RAG, LoRA, Runway ML, Synthesia, DeepBrain AI, DeepMotion, Pictory AI 🧩 Audio and Voice Technologies: OpenAI Whisper, Google TTS/STT, 11Labs, Deepgram, Perona AI 🧩 Video Technologies: FFMpeg, OpenCV, GenAI 🧩 DevOps & Tools: AWS, GCP, Heroku, Vercel, Docker, Git, Jira, Trello, Asana, Postman, Swagger 🌐 Industries Served 🥇 Real Estate 🥇 Social Media 🥇 Video Content and Marketing 🥇 Healthcare 🥇 Fitness & Sports 🥇 SaaS 🥇 FinTech 🥇 E-commerce 🥇 Dating & Friendship 🥇 Travel & Hospitality 🥇 Education Whether you're launching an MVP, scaling a product, or integrating powerful AI features into your platform — I bring deep technical expertise, startup agility, and a product-first mindset to help you deliver real impact. Let’s turn your vision into reality — faster, smarter, and better. Feel free to reach out — I respond quickly and professionally. 💬 Ready when you are.

Innovative and values-driven frontend developer with over 4 years of hands-on experience crafting accessible, SEO-optimized websites and custom Shopify storefronts. Adept at translating educational philosophy into inclusive design and technical training. Proven ability to bridge theory and practice through simulation-based learning, modular development, and client-focused freelance solutions. Passionate about empowering learners and businesses through clean code, semantic structure, and strategic thinking.

Professional with an overall experience of 8+ years in the industries like Real Estate, Web3, Healthcare etc. Extensively worked as Front-End developer and worked on Object Oriented JavaScript. Worked on multiple projects as Lead and has ability to build a website project from Scratch. Spearheaded successful transition from LAMP stack to MERN which cur latency by 40% and increased effectiveness of database administrators by 20%. Experienced with working on WebGL libraries used for Augmented Reality projects. Worked on Cloud technologies such as AWS. Proactive problem solver, team player and has excellent communication skills.

I am a skilled Full Stack Developer with 4+ years of experience building scalable web and mobile applications. I specialize in React, Node.js, and AWS.

I’m a results-oriented Web Developer and QA Specialist with hands-on experience in designing, developing and customizing responsive WordPress websites and ensuring end-to-end software quality across web and mobile platforms. I specialize in both manual and automation testing, A/B testing, cross-browser compatibility, and performance optimization. I also lead a small agile team, managing multiple client projects simultaneously with a focus on timely delivery, technical excellence, and user-centric solutions.

Highly skilled Web3 Developer with over 8 years of experience in building and deploying decentralized applications (DApps) on Ethereum and other blockchain platforms. Proven track record in smart contract development, security audits, and blockchain architecture design. Experienced in creating and optimizing cryptocurrency trading bots, including arbitrage, MEV (Miner Extractable Value), sniper, market maker, and copy trading strategies. Passionate about leveraging my technical skills to create innovative solutions that drive transparency and decentralization. Eager to contribute my expertise in blockchain technology and automated trading systems to a forward-thinking company.

Speed matters — especially when users won’t wait for your site to load. I’m Erica, a GatsbyJS Developer with over 7 years of experience building blazing-fast, SEO-friendly static sites that perform beautifully on every device. Whether you're launching a product, optimizing a blog, or scaling a content-heavy platform, I use Gatsby to make it light, clean, and lightning quick. I work with modern stacks that often include React, Redux, and headless CMS integrations, but I don’t stop at just the front end. I’ve also built and connected backends using Express, Node.js, Django, and REST APIs, giving me the full-stack flexibility to manage both content and performance efficiently. My projects have ranged from eCommerce landing pages hosted on AWS, to content-driven marketing sites synced with MySQL and third-party services. I also bring strong experience with HTML, Vue.js, and deployment workflows, ensuring each build is stable, scalable, and easy to maintain. Fluent in both German and Mandarin, I’ve worked with global teams to launch multilingual sites and optimize international performance. If you need a GatsbyJS expert who understands speed, structure, and long-term scalability, I’m ready to help bring your next project to life — fast.

Too many teams still treat version control like an afterthought — until something breaks. I’m Aaron, and after 6 years of working with development teams, I’ve learned that Git isn’t just about pushing code; it’s about keeping collaboration clean, traceable, and scalable. My role is to help teams create structure in their development processes, so everyone moves faster with fewer surprises. I specialize in Git workflows, repository management, and versioning strategies that bring clarity and confidence to every commit. Whether you're a solo developer looking for better habits or a growing team struggling with merge conflicts, I bring structure to the chaos. My work often includes integrating Git into stacks powered by Django, Express, Firebase, and Flask, ensuring that the versioning layer supports — not slows down — the rest of the project. I’ve spent years working with code across both the front-end and back-end, from building with JavaScript and Bootstrap to managing databases with MongoDB and PostgreSQL. Because of this, I understand how real-world teams operate and where things tend to fall apart when proper Git practices aren’t in place. Here’s what I offer: • Workflow design for Git (feature branches, hotfixes, staging) • Merge conflict resolution and prevention strategies • Repository audits to clean up tangled commit histories • Team training on Git etiquette and CLI commands • CI/CD-friendly branching models that scale with your team I’m fluent in Japanese, English, and Spanish, and have worked with global teams where clarity and documentation are just as important as code quality. I bring calm and consistency to collaboration — especially when versioning issues cause stress. If your current Git setup feels messy, untracked, or risky, let’s fix that. Clean version control isn’t just about process — it’s about peace of mind for your entire team.

Clean, fast, and reliable APIs are what make great digital experiences possible — and that’s exactly where I’ve chosen to build my career. I’m Megan, a Backend API Specialist currently in my second year of hands-on experience developing, connecting, and fine-tuning backend systems that power modern web apps. I might be considered a beginner in terms of years, but I’ve already worked on several real-world projects where performance and clarity mattered. Whether it’s building an endpoint from scratch or debugging why something isn’t syncing, I enjoy the problem-solving side of backend development. My journey started with frontend work using React, Next.js, and HTML, but I quickly realized how much I loved the logic, structure, and flow of APIs. That’s when I leaned into learning Django, Firebase, and database systems like PostgreSQL. Here’s where I can help: • RESTful API creation and optimization • Backend logic integration with React/Next.js frontends • Firebase cloud functions and data handling • Database queries and structure using PostgreSQL • Collaborative, clean code and documentation habits I've also spent time working with Angular, Bootstrap, and Tailwind CSS, so I understand how backend decisions affect the frontend team. This helps me write APIs that make UI development smoother — which means faster delivery for clients. One thing I pride myself on is communication. I don’t just send over code and disappear. I explain what I’ve done, ask the right questions, and follow up until everything works exactly how it should. Being fluent in Spanish and conversational in Mandarin has helped me work with remote and multilingual teams, ensuring that nothing gets lost in translation — especially when handling technical requirements or walking through project needs. Even though I’m early in my career, I approach every task with long-term thinking. I don’t believe in shortcuts or patchy fixes. I’m here to learn, build, and grow — and to make sure your backend is ready for real-world traffic. If you’re looking for someone dependable who understands the fundamentals and brings curiosity, care, and solid execution to your API stack, I’d love to work with you.

With over 7 years of experience customizing Shopify themes, I specialize in transforming storefronts into fast, user-friendly, and brand-consistent experiences. I'm Bryan — a frontend developer who bridges design and functionality by digging into theme code, optimizing layouts, and integrating modern tech like React, JavaScript, and GraphQL to make Shopify sites not only look good but perform better. Whether you're trying to fix a clunky product page, implement a custom cart interaction, or sync with external tools through REST APIs or Firebase, I approach each project with clean, scalable code and a UX-first mindset. I’ve also worked with Django, Python, and AWS, giving me full-stack awareness when performance or integration matters beyond the frontend. ✅ Custom theme development with speed & mobile optimization ✅ Integration of REST APIs, Firebase, and backend data sources ✅ UX-focused tweaks for product pages, checkouts, and collections ✅ Troubleshooting layout bugs and Shopify Liquid issues ✅ Multilingual collaboration — fluent in Japanese

Hi, I’m Jerry Cruz — a dedicated Security Consultant based in Ohio with roots in Nepal, working at the intersection of clean code and secure architecture. My focus is simple: help businesses protect their applications and servers by designing solid, security-first systems without overcomplicating the process. With hands-on experience in JavaScript, SASS, Django, REST API, Tailwind CSS, and MySQL, I specialize in identifying vulnerabilities in both front-end and back-end structures and implementing scalable, efficient solutions that stick. Whether you're building a product from scratch or want to tighten your server configuration, I can guide you with thoughtful, beginner-friendly communication and strong technical backing. Even though I consider myself a "beginner" in formal certifications, I've spent countless hours in the trenches — learning how real-world code behaves under pressure, what makes a system truly secure, and how to keep both clients and users safe from digital threats. I believe in honest communication, timely delivery, and continuous improvement. If you're looking for someone who can grow with your project and bring a watchful eye to your code and cloud setup, let's connect.

Mobile apps today are powered by APIs — from payments to chat to maps — and I love being the one to make those features work seamlessly. I’m Kelsey, a Mobile API Integrator with about a year of experience connecting third-party services into mobile and hybrid apps using clean, maintainable code. Whether you're trying to embed real-time chat, integrate Stripe, or display location-based results, I focus on making the experience smooth and dependable for your users. ✅ Integration of Firebase for authentication and real-time features ✅ Payment and location-based API integration using JavaScript ✅ UI coordination using React, Angular, and Tailwind CSS ✅ Backend interaction and data flow using MongoDB, AWS, and Bootstrap ✅ Fluent in Japanese, French, and Mandarin — helpful for multilingual teams or apps targeting global markets

Clean architecture, reusable code, and real scalability — that’s what I aim to bring to every project. I’m Stephen, a Full Stack Python Developer with over 8 years of experience building robust web applications using Django on the backend and React on the frontend. My approach is equal parts thoughtful planning and hands-on development, whether I’m leading a team or jumping into a legacy codebase that needs structure. At the core of my work is Django — I’ve built APIs, dashboards, and internal tools for companies of all sizes. Paired with React, I focus on keeping components modular, responsive, and integrated tightly with backend logic. My experience also extends into PostgreSQL, JavaScript, and TypeScript, giving me the flexibility to shape backend schemas, frontend behavior, and everything in between. Here’s where I can add value to your team: • API design and implementation with Django and Express • Frontend state management with React + TypeScript • Scalable data modeling using PostgreSQL • Styling with SASS and modern CSS practices • Full-stack debugging and performance optimization I’ve worked across industries — from eCommerce platforms to SaaS dashboards — and consistently deliver production-ready features that are easy for other devs to build on. I prioritize communication and documentation, and I’m fluent in German and Spanish, which has made working with international teams seamless and efficient. If your project needs a full stack developer who writes clean Python, builds intuitive UIs, and can see the bigger picture technically and strategically, I’d be glad to contribute and help build something solid.

There’s something satisfying about building a page that just feels right. That’s what I do—create Wix landing pages that are clean, effective, and user-friendly. My background started in graphic design, which means I bring an eye for layout and flow, not just drag-and-drop skills. Clients I’ve worked with often come to me frustrated—tired of DIY designs that look good on desktop but fall apart on mobile. I fix that. Every pixel matters. Every second of loading time matters. I ensure your visitors don’t bounce before they’ve had a chance to understand your offer. I’ve built landing pages for local businesses, digital agencies, authors, course creators, and even a few eCommerce shops testing new products. No templates. No fluff. Just thoughtful, strategic design made to reflect your brand and guide the visitor toward a single action. Let's build something better than average.

Hi there! I'm a Webflow developer passionate about transforming ideas into beautiful, responsive websites that function smoothly on every device. With over 5 years of hands-on experience in Webflow, I specialize in building custom-designed sites that are fast, scalable, and 100% aligned with your brand. I build with precision — combining strong design sense with clean development practices. Whether you need a simple landing page or a fully dynamic CMS-driven website, I ensure a seamless user experience with pixel-perfect design implementation. I’ve worked with startups, agencies, and independent clients to deliver everything from marketing websites and blogs to ecommerce platforms and portfolio sites. I’m proficient in Figma-to-Webflow workflows, custom animations using interactions, CMS collections, and third-party integrations (like Memberstack, Zapier, or Mailchimp). I believe communication and clarity are the foundation of a successful project. I keep things organized, provide regular updates, and always deliver on time. Plus, I ensure your Webflow site is easy to update — so you stay in control after launch. If you're looking for someone who not only understands great design but knows how to build it responsively and reliably in Webflow — I’d love to work with you!

Building an app without a solid architecture is like constructing a house without a blueprint. I’m Eric, a Software Architecture Consultant with 4 years of hands-on experience helping startups and teams lay down the right technical foundation before a single line of production code is written. From defining scalable data models to mapping out component structure and API flows, I help turn ideas into well-planned, flexible software systems that don’t crumble under growth. I specialize in designing modern web architectures using React, Next.js, Redux, and REST APIs, while backing them with robust databases like PostgreSQL. With additional experience in Python, Tailwind CSS, SASS, and frontend UX considerations, I’m able to consult across the full stack. Fluent in Spanish, Japanese, and English, I work closely with international teams to align business goals with the right tech decisions — ensuring apps are built to last, not just launch.

Hey! I'm a frontend developer with deep expertise in React.js and Next.js, focused on building fast, SEO-friendly, and scalable web applications. Over the last 4+ years, I’ve worked with startups and businesses to create highly responsive UIs that not only look great but perform efficiently across all modern browsers and devices. I specialize in Next.js for server-side rendering (SSR), static site generation (SSG), and performance optimization — making sure your website ranks better and loads faster. From dynamic dashboards to marketing websites and eCommerce storefronts, I’ve built projects that prioritize both UX and SEO. What I can help you with: ✅ Custom React & Next.js development ✅ Page speed and Core Web Vitals improvements ✅ API integration (REST & GraphQL) ✅ Static site generation with Next.js ✅ Tailwind CSS, Material UI, Chakra UI ✅ Deployment via Vercel, Netlify, or custom servers I write clean, maintainable code and believe in pixel-perfect implementations from Figma or XD designs. I understand the value of communication, timelines, and aligning with your business goals. Let’s build something fast, powerful, and future-proof!

Adding new features to an existing app isn’t just about writing code — it’s about understanding what’s already there and enhancing it without breaking the flow. I’m Sean, a Feature Enhancement Developer with 1 year of hands-on experience helping teams expand their applications by building scalable, thoughtful, and user-focused improvements. Most of my work involves integrating new functionality using Flask, Django, and REST APIs, while keeping frontend behavior smooth and responsive with Next.js, Tailwind CSS, and Redux. I focus on making additions that fit naturally within your current product — not just bolt-ons that cause more bugs than benefits. Here’s what I can help with: ✅ Building and integrating new API endpoints ✅ Adding feature modules using JavaScript, Redux, and Flask ✅ Improving backend logic with PostgreSQL or MySQL ✅ UI extensions and layout improvements using Tailwind CSS ✅ Fluent in German, ideal for multilingual team communication

When off-the-shelf CMS platforms don’t quite fit, I step in to build something custom. I’m Ruth, a Custom CMS Developer with just under 2 years of experience developing clean, focused content systems for clients who need more control and flexibility than WordPress or Squarespace can offer. I work primarily with JavaScript and Python-based stacks like React, Flask, and Django, building backend logic and admin panels that are tailored to each client’s workflow — not forced into someone else’s template. I enjoy working on both the structure and presentation sides of a CMS — making sure content can be created easily, stored securely, and delivered cleanly across the site. Whether it's a lightweight blogging engine or a more complex editorial dashboard, I build it to be user-friendly, maintainable, and scalable for future content growth. ✅ Frontend interfaces using React, Bootstrap, and CSS ✅ Backend routing and admin control in Flask, Django, and Firebase ✅ Clean, mobile-friendly design using SASS ✅ Lightweight content publishing systems that feel intuitive ✅ Fluent in Spanish and French — ideal for multilingual CMS projects

Do repetitive tasks slow down your team? I specialize in building smart, efficient automation using Google Apps Script to streamline your business workflows. Whether you're working with Google Sheets, Docs, Gmail, Forms, or Calendar — I can connect them all through powerful scripting that saves time and reduces human error. From creating automated reports and approval flows to building custom triggers for reminders and email parsing, I help businesses unlock the full potential of the Google Workspace ecosystem. Some solutions I’ve implemented for clients include: ✅ Auto-generated reports and dashboards in Google Sheets ✅ Form-to-Doc automations for contracts and onboarding ✅ Email parsing and response automation in Gmail ✅ Calendar scheduling and team coordination scripts ✅ Integration with third-party APIs (Slack, Stripe, etc.) ✅ Scheduled backup systems and data syncs ✅ Approval and notification workflows I deliver easy-to-maintain scripts, with full documentation and support — so your team stays productive without the manual work. Let's talk about automating your next workflow.

Ever opened a site that looked perfect on Chrome but fell apart on Safari or Edge? That’s exactly the kind of frustration I help teams avoid. I’m Tristan, a Cross-Browser Testing Specialist focused on ensuring your web app works exactly as expected — no matter where or how it’s being viewed. With a background in front-end development and deep testing experience across major browsers and devices, I’ve worked with stacks involving React, Angular, Flask, and Django. I go beyond surface checks — I dive into layout inconsistencies, JavaScript behavior, CSS rendering, and even browser-specific quirks in TypeScript and Redux environments. My approach is systematic, thorough, and built around creating a truly consistent experience for all users. I speak intermediate-level Japanese and have worked with international teams on both UX testing and QA sprints. Whether you’re prepping for a launch, chasing a pixel-perfect layout, or simply want to avoid support tickets caused by browser bugs, I’m here to help you get it right — everywhere it matters.

I’m a backend-focused developer who thrives on building efficient, scalable systems using Node.js. Over the past 5 years, I’ve architected APIs, handled complex data flows, and ensured backend systems remain robust under pressure. My journey began while optimizing an inventory system for a logistics company — a project that taught me the value of clean architecture and reliable code. Since then, I’ve supported various teams, from startups to enterprise-level applications, with tasks like: I’ve worked with Express, NestJS, and serverless frameworks to power secure and performant APIs. Whether it’s integrating payment systems, building real-time services with WebSockets, or optimizing queries for MongoDB or PostgreSQL — I handle it all with precision. A few highlights of my backend experience: ✅ Modular API Design: Cleanly separated services for maintainability and scalability ✅ Authentication Systems: JWT, OAuth2, session-based flows, and RBAC implementation ✅ Deployment & Monitoring: Experience with Docker, CI/CD, and error tracking tools like Sentry ✅ Third-Party Integrations: Stripe, Firebase, Twilio, Slack, and more I’m not just a coder — I’m someone who listens carefully to business needs and delivers solutions that actually work. If your project needs a Node.js developer who’s reliable, curious, and efficient — I’m ready to dive in.