Yellobit

About the Role We are developing an innovative SaaS product and are looking for a frontend-heavy full stack developer to join our lean, fast-paced team. The ideal candidate has strong frontend expertise in building engaging, performant user interfaces, while also being comfortable handling backend development when required. You’ll play a key role in shaping the product experience end-to-end, from implementing sleek interfaces to ensuring smooth data flow with the backend. Responsibilities Design, develop, and maintain high-quality, responsive, and intuitive web interfaces Work with backend developers to integrate APIs, manage data flow, and deliver full features Implement real-time features using WebSockets Translate design wireframes into functional, pixel-perfect components Optimize frontend performance for speed, scalability, and cross-browser/device compatibility Contribute to backend logic (Node.js, APIs, and databases) as needed Ensure code quality through reviews, testing, and adherence to best practices Stay updated with modern frontend and full stack trends and bring fresh ideas to the team Required Skills Proficiency in React / Next.js , JavaScript/TypeScript, HTML5, and modern CSS Experience with CSS frameworks (Tailwind, Bootstrap, or similar) Strong understanding of Node.js , REST APIs, and WebSockets Hands-on experience with databases: MongoDB and PostgreSQL Familiarity with Git workflows and collaborative development Strong eye for UI/UX with attention to detail Ability to thrive in a startup/lean team environment and take ownership Nice-to-Have Experience with AI model integration into applications Familiarity with cloud platforms (AWS, GCP, or similar) Understanding of DevOps and CI/CD pipelines Experience with testing frameworks (Jest, Cypress, etc.) Prior experience working on SaaS products What We Offer The opportunity to work on a growing SaaS product with real-world impact A small, collaborative team where your contributions matter Ownership and flexibility in how you approach your work Exposure to a variety of challenges across frontend and backend development A chance to shape product features and influence technical decisions