Hire the Best GruntJS Developers in Kyiv, UA

Senior Full-Stack Developer | Angular • React • Node.js • TypeScript | ag-Grid & React-Admin Expert I help businesses build and modernize scalable web applications using Angular, React, Node.js, and TypeScript. With 10+ years of hands-on experience, I deliver production-ready solutions focused on performance, maintainability, and long-term scalability. What I bring to your project: • Full-stack expertise with Angular and React frontends paired with Node.js / Express / NestJS backends • Advanced TypeScript development across the entire stack • Enterprise-grade admin panels and internal tools using React-Admin and AdminJS • Complex data grids and high-performance table systems with ag-Grid • REST APIs, PostgreSQL, MongoDB, Redis, and third-party integrations • Clean architecture, automated testing, CI/CD, and scalable application structure • Strong debugging, refactoring, and legacy system modernization skills • Clear communication and proactive problem-solving mindset I'm your go-to developer if you need: ✓ A scalable web application built from scratch ✓ Enterprise admin dashboards and internal systems ✓ ag-Grid customization and performance optimization ✓ Legacy Angular/React modernization and migration ✓ Performance optimization and code refactoring ✓ Technical leadership for your development team ✓ AI-generated code audit and stabilization ✓ AI code debugging and refactoring I specialize in working with complex existing systems, improving reliability, maintainability, and developer experience while helping teams move faster with confidence. Let’s discuss how I can help bring your project to production successfully

I am a Full-Stack/Backend Engineer specializing in building scalable web applications, robust APIs, and custom architectural solutions. My primary focus is on the Node.js and TypeScript ecosystem, backed by deep experience with relational databases like PostgreSQL. My technical expertise includes: • Backend: Node.js, TypeScript, NestJS, PostgreSQL, REST APIs • Frontend: React, Vue 3, Tailwind CSS • Architecture & DevOps: System monitoring, database schema design, CI/CD pipelines, and strict PR-driven workflows • AI Integration: Practical experience integrating Large Language Models (LLMs) and agent orchestrators into software projects I have a strong track record of developing complex features and resolving bugs for enterprise-level frameworks, as well as architecting custom data-monitoring systems from the ground up. I prioritize clean, maintainable code, strict conventions, and fault-tolerant architectures. Whether you need someone to maintain an established, well-documented codebase or build a reliable backend system from scratch, I am ready to jump in and deliver high-quality results. Let's build something reliable together.

Frontend developer focused on JavaScript, responsive web interfaces, REST API integrations, and lightweight automation. 35 Upwork jobs with 100% Job Success and experience delivering real projects for clients. I can help with: ✔️ Building responsive interfaces with HTML, CSS, and JavaScript ✔️ Integrating third-party REST APIs and displaying dynamic data ✔️ Debugging JavaScript, async/await, fetch, and UI issues ✔️ Adding interactive functionality to existing websites ✔️ Building small web applications and automation tools ✔️ Integrating AI-powered features through APIs My recent projects include a movie search/watchlist application with REST API integration, an AI-powered movie recommender using OpenAI and vector search, and a Telegram bot for warehouse inventory automation. Current tools: JavaScript, HTML5, CSS3, REST APIs, Git/GitHub, npm, Vite, browser DevTools, Vercel, and Netlify. If you have a small or clearly defined frontend/API task, feel free to send me the requirements or existing code. I can review the scope first and tell you how I would approach it.

🚀 Full-Stack Developer (MERN) focused on backend architecture and clean, scalable code. I build fast, reliable, and modern web apps — from database to frontend — designed for performance and easy maintenance. 💡 What I Do 🔹 Design and implement secure, well-structured REST APIs using Node.js + Express 🔹 Build efficient database layers with MongoDB & PostgreSQL 🔹 Develop responsive React frontends with clean UI and reusable components 🔹 Integrate authentication, routing, and state management (JWT, sessions, Zustand) 🔹 Optimize for scalability, maintainability, and performance 🔹 Write modular, testable, production-ready code with clear architecture 🧱 Typical Projects: 🔸Business dashboards and admin panels 🔸REST API backends and integrations 🔸Full-stack web apps (React + Node.js) 🔸Authentication systems (JWT, sessions) 🔸Microservices and internal tools 🔸Landing pages with dynamic content ⚙️ Tech Stack Backend: Node.js, Express.js, REST API, PostgreSQL, MongoDB, JWT, Docker Frontend: React.js (Hooks, Routing, Zustand), HTML5, CSS3 Other: Git, API integration, Microservices, CI/CD basics 🤝 Why Clients Choose Me ✅ Backend-driven mindset with full-stack execution ✅ Reliable communication and clear documentation ✅ Strong focus on maintainability and business value ✅ Always delivering clean, production-ready solutions 🎯 Let’s build something that actually works — fast, stable, and ready to grow.

I build server-side magic using Node.js, and I'm all about clean code, strong logic, and making things 'just work'. From quick API setups to full-blown backend systems- I've got you. Here's what I can help you with: -Backend development with Node.js + Express -Creating RESTful APIs or real-time features (yep, chats too!) -Working with MongoDB, PostgresSQL, Firebase -Setting up third-party integrations (Stripe, Twilio, you name it) -Deploying to Vercel, Heroku, or wherever your app needs to live -Cleaning up legacy code and making it shine again I've worked with startups, solo founders, and growing teams - always focusing on building things that are stable, scalable, and easy to maintain. Clients say they love my: -Fast communication (I don't ghost!) -Attention to detail -Ownership of the project -Transparent and clear process If you're looking for someone who gets things done without the hassle - let's talk. I'm ready when you are.

👋 Hi! I'm a Full-Stack Developer with 5+ years of production experience building scalable web applications across FinTech and Insurance domains. I specialize in delivering enterprise-grade solutions, from complex front-end architectures to robust back-end services - while ensuring compliance with strict regulatory requirements. 💻 Tech Stack Overview 🎯 Front-End Development • Frameworks: Angular 2+ (v7-v20), React, Next.js • State Management: RxJS, NgRx, Ngx Formly • UI/UX: SCSS, Bootstrap, Material, Figma, Zeplin, Tailwind • Architecture: NX monorepos, Component Libraries, Design Systems • Testing: Playwright, Protractor, Jest, Karma ⚙️ Back-End & Infrastructure • Languages: Node.js, Java, Python • Databases: PostgreSQL, MySQL, MongoDB • Architecture: RESTful APIs, OpenAPI, Microservices, Distributed Systems • DevOps: Docker, Kubernetes (kubectl, helm, Argo CD), Jenkins, GitHub Actions, GitLab CI/CD • Integration: Payment Gateways, Third-Party APIs (Google Maps, PEGA), LDAP Authentication • Testing: Postman, API tests, Performance Testing 💡 What I Deliver • Clean, maintainable front-end architecture with modern design and UX • Back-end development tailored for performance, scalability, and security • AI integration that adds real value to your users and business logic • Interactive data visualizations and dashboards powered by real-time data • Seamless collaboration across design, product, and dev teams 💥 Why Work With Me • ✅ Production Experience That Matters – 5+ years building real applications in regulated industries like FinTech and Insurance, not just side projects • ✅ Full-Stack Capability – I'm strongest on the front-end but comfortable across the entire stack, so I can own features end-to-end without hand-offs • ✅ I Meet Deadlines – Proven track record shipping MVPs in 6 months and delivering features on schedule for enterprise clients • ✅ Team-Ready – I collaborate well with designers, product managers, and other developers. I also mentor junior team members when needed • ✅ Quick to Adapt – I've worked across many tech stacks and can pick up new tools fast to match your project needs • ✅ Problem Solver, Not Just Coder – I think about the bigger picture—asking questions, suggesting improvements, and focusing on business outcomes Ready to build something powerful, beautiful, and intelligent? Let’s get started. 🚀