Hire the Best JavaScript Developers
in Croatia

Full-Stack JavaScript Developer | React | Node.js | TypeScript | Next.js | NestJS 💻 Frontend: React, Next.js, React Native, TypeScript, Redux Toolkit, React Query, Tailwind CSS, MUI ⚙️ Backend: Node.js, NestJS, Express, Koa, REST APIs, PostgreSQL, MongoDB, Sequelize, Stripe, PayPal ☁️ Cloud: Docker, Google Cloud Platform, PM2, Git 🏗️ Architecture: SOLID, Design Patterns, DDD, OOP 🤖 AI Productivity: Claude Code, Cursor, GitHub Copilot, Ollama 8+ years of commercial experience delivering production-ready solutions with React, Next.js, Node.js, NestJS, TypeScript, PostgreSQL, and MongoDB. Experienced in API development, third-party integrations, database design, system architecture, and performance optimization. I help companies build scalable web applications, SaaS platforms, admin dashboards, and high-performance backend systems. I've worked on projects ranging from business platforms and admin dashboards to high-load backend services, file processing systems, reporting tools, and API integrations. I focus on writing clean, maintainable, and well-tested code while keeping business goals in mind. If you're looking for a developer who can take ownership of features, improve an existing product, or build a new application from scratch, I'd be happy to discuss your project.

I have finished my education as a Front-End developer - financed by the European Union. I got my degree studying at Algebra Open University (Zagreb). I paralleled my studies at Harvard University and also finished a course called Understanding Technology. Before that, I got two assignments. They were about translating English to Croatian using specific software. I did those tasks professionally, successfully and one day before the deadline. Five stars. I am a serious freelancer and well-disciplined, always on time. You can trust me that I will do the job correctly and professionally. Kind regards

🙌 7+ Years of experience in full-stack web development 🏆 Top Rated Plus on Upwork | 100% Job Success Score | 7+ Years building for founders Hi, I'm Gabriel. For the past 7 years I've helped founders and teams turn ideas into real, working software, from MVPs that get to market fast to full SaaS platforms built to scale. These days, my focus is on full-stack development, AI integration, and SaaS. Many founders come to me after a previous developer disappeared mid-project, usually because of bad communication. So I've built my process around never leaving you guessing: you get a working demo every week, a shared board showing exactly what's done, in progress, and blocked, and honest answers when something's taking longer than expected. No chasing me for updates. That's how I've helped dozens of founders launch their ideas and grow them. You can check out my case studies below to see for yourself, or read what some of my clients have said: Ben Furtado | Founder of Moonlitemoney - ⭐⭐⭐⭐⭐ "Gabriel is awesome. I was struggling to find the right developer to knock out my software MVP. I tried a lot of people who were over complicating the project and taking forever. Gabe came in and rebuilt the whole ring from scratch and did it 10x better in 1/10th the time. He understands the vision and knows how to bring it to life. I really can’t recommend him highly enough. Thank you Gabe!" Seth Carstens | Web Development Lead Nextiva - ⭐⭐⭐⭐⭐ "Gabriel was a valuable member of our web development team. He always delivered high-quality work and was willing to go above and beyond with extra hours on the nights and weekends to get the project across the finish line." Cristian Sava | CEO at Compire LLC - ⭐⭐⭐⭐⭐ "Gabriel is an exceptional engineer, truly one of the best I've worked with. His expertise and willingness to go above and beyond ensure top-notch delivery on every project. Beyond his technical skills, Gabriel stands out for his excellent communication, a rare find on Upwork. He's also highly reliable; I can trust him to complete any assigned task on time and with outstanding quality." I love working with ambitious founders and teams who want their product to stand out and perform. If that sounds like you, let’s connect.

Hi! I’m Tomislav - a senior full-stack JavaScript developer with 6+ years of experience building fast, modern, scalable web applications using React, Next.js, Node.js, and TypeScript. I specialize in creating high-performance websites, dashboards, SaaS platforms, and custom web apps with clean, maintainable, production-ready code. What I can do for you? 🚀 Frontend Development (React / Next.js) - Responsive, pixel-perfect UI - SSR/SSG for SEO-friendly pages - Component architecture, state management, optimization - Tailwind, shadcn/ui, Chakra, Material UI - Modern, fast, clean UX ⚙️ Backend Development (Node.js / TypeScript) - Scalable REST APIs, microservices - Authentication, role-based systems - Integrations with 3rd-party APIs - Database modeling (PostgreSQL, Prisma, MongoDB) - Real-time updates (WebSockets) 🧩 Full-Stack Apps - Design → Development → Deployment - Admin panels, dashboards, internal tools - MVP builds for startups - Long-term maintenance & feature development What Clients Love About Working With Me? - Clear and fast communication - Clean, maintainable, well-documented code - Reliable delivery and long-term mindset - I can start with a small paid test task so you can evaluate my work risk-free If you’re looking for a dependable, senior-level web developer who will treat your project like his own - let’s talk. I’d love to help!

👋 Hi there! I'm a Frontend Developer with over 7 years of Experience. I specialize in building modern, responsive, and high-performance web applications. Over the years, I've worked on a wide range of projects—from sleek landing pages to complex dashboards and modern web applications. 🔧 My core tech stack includes: - HTML5, CSS3, JavaScript (ES6+), TypeScript - React.js, Next.js, SolidJS - Node.js for backend integrations - Modern tools and workflows (Vite, Webpack, Git, etc.) 💼 Why work with me? - Clean, maintainable, and scalable code - Deep understanding of frontend architecture and performance optimization - Strong communication and a collaborative mindset - Focused on UX, accessibility, and pixel-perfect implementation Whether you're starting from scratch or need help improving an existing project, I'm here to bring your ideas to life with precision and care. Let’s build something great together. 💻

⭐⭐⭐⭐⭐ "Bruno has been an amazing contribution to our front-end team. He’s efficient, responsive, and helpful. He has made a new React.js screen to our site with a lot of complex animations and many of those little but important details for UX. He killed it basically, and we will definitely work with him again. Highly recommended freelancer!" I am a communicative person, who has a keen interest in developing scalable, maintainable software with high-quality code, on-time delivery, and adherence to specifications. Why am I good at it? As a passionate learner, I am always seeking new opportunities, and I care about the satisfaction of my customers. I worked on projects of famous companies or projects that famous companies used: ✅ Philip Morris IQOS Greece ✅ Music Supervisor / WeGetArtist (Used by Netflix) ✅ Optilogic Cosmic Frog ⭐ Valuable contributions I can make to your project ⭐ ✅ 4 years of experience in React.js development. ✅ In-depth understanding of React's core concepts. ✅ Proficient in diagnosing and resolving performance issues promptly. ✅ Amazing CSS skills that can make impossible animations possible. ✅ Expertise in refactoring class components into functional components using React hooks. ✅ Exceptional communication skills, providing 24/7 availability to keep you informed about project status. ✅ Dedicated to ensuring your success and delivering tangible value to your business. ⭐ Here are compelling reasons why choosing me sets me apart from other freelancers:⭐ ✅ Focus on providing value to all of my clients and earning their trust through exceptional service. ✅ Core commitment to over-delivering, going beyond expectations to leave clients amazed. ✅ Maintain a high level of responsiveness, keeping communication channels open for seamless collaboration. ✅ Demonstrate resilience in tackling any challenges faced by clients and finding effective solutions. ✅ Embrace kindness as a guiding principle, treating everyone with respect, empathy, and a genuine desire to improve their situations. ⭐Technologies ⭐ - HTML5, CSS3, SASS - Bootstrap, MUI, Tailwind, KendoUI - JavaScript, jQuery - React.js Next.js - Redux, Redux Saga, Redux Toolkit - Vue, Vuex, Nuxt - Typography - WebFonts, Font-Face - Responsive Design - Cross-browser Optimization - Yarn, NPM - Git, GitLab, GitHub, Bitbucket - Trello, Jira, Slack - Mac OS, Linux, and Windows user. Would you be interested in leveraging my skills in order to develop any application and grow your business at the same time? If you would like to discuss the job posting in more detail with me, you can invite me to your job posting.