Senior Full-Stack Engineer

**About Us** Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer\-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about\-us/ **About The Role** At one of Ruby Labs’ portfolio companies, we are looking for a Senior Full\-stack Software Developer. In this role, you will be responsible for developing and implementing robust user interfaces using pre\-built component libraries. This position is ideal for a developer who thrives in a structured environment, enjoys translating design requirements into efficient, scalable code, and is dedicated to delivering seamless, intuitive user experiences. If you thrive in a results\-driven environment, value autonomy, and enjoy building intuitive, scalable UI without subjective design guesswork, this is the role for you. ****Key Responsibilities**** **Frontend Development** * Develop high\-quality user interfaces using Next.js, React, and TypeScript, leveraging UI libraries such as NextJS, HeroUI, and Tailwind CSS. * Write clean, scalable, and maintainable code, ensuring optimal performance and responsiveness across browsers and devices. * Create and maintain reusable frontend components. **Backend Development** * Develop robust backend services and high\-quality Node.js (with Nest.js). * Write clean, efficient, and scalable backend code. * Design and optimize database schemas and queries for performance and scalability. **UI Implementation \& Design Integration** * Accurately translate design wireframes and layouts into functional frontend implementations. * Ensure consistency, usability, and accessibility throughout all UI implementations. * Optimize interfaces for maximum performance and user experience. **Collaboration \& Process** * Collaborate effectively with product managers and backend developers to understand requirements and deliver integrated solutions. * Participate actively in code reviews and maintain high coding standards. * Contribute to efficient workflows and seamless transitions between design and development phases. **Qualifications** * 5\+ years of frontend development experience (Next.js, React, TypeScript, Tailwind), 7\+ overall frontend experience. * 3\+ years of backend experience using Nest.js, 5\+ overall backend experience. * Strong understanding of UI/UX principles and ability to work within structured design systems. * Proficiency with HTML and CSS; capable of delivering clean, semantic, maintainable code. * Solid understanding of responsive and adaptive design principles. * Good knowledge of SQL. * Experience with design tools such as Figma or Visily to implement assets accurately. * Extensive knowledge of backend development, including service creation and scalable database solutions. ****Nice to have**** * Experience working with design systems and component\-based architecture. * Experience optimizing accessibility and usability. * SQL Query optimizations. ****Location**** Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours. **Benefits** Discover the perks of being part of our vibrant team! We offer: * Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work\-life balance. * Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well\-being, without counting days. * Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. * Company\-provided MacBook: Experience seamless productivity with top\-notch Apple MacBooks provided to all employees who need them. * Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1dHF4ctKlez75whdn\-ybUwP5d5Wr0BdwVrorrm\_fM40Q/preview Be part of our fast\-growing team and seize this excellent opportunity for personal and professional growth! ****Interview Process**** After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps: * Recruiter Screening (40 minutes) * Technical Interview (60 minutes) * Interview with the Head of Product (45 minutes) * Final Interview (30 minutes) ****Life at Ruby Labs**** At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day. This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen. Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.