Senior Backend Engineer - NodeJS

Employment: Full-time Experience level: Mid-Senior Level Job Description We are looking for a talented and self-driven Backend Engineer to join our growing engineering team. You will be responsible for designing, implementing, and maintaining scalable backend services using Node.js, Fastify, and Python. You will work closely with cross-functional teams to build APIs, manage data flow, and ensure reliability and performance of backend systems.  Key Responsibilities  Design and develop robust RESTful APIs and microservices using Node.js and Fastify Write clean, efficient, and scalable code in JavaScript and Python Collaborate with frontend developers, QA engineers, and product managers  Implement automated tests to ensure high code quality  Optimize backend performance and troubleshoot production issues  Work with databases (SQL/NoSQL) and messaging systems  Participate in code reviews and share knowledge with team members  Contribute to DevOps practices, CI/CD pipelines, and cloud deployments    Qualifications Required Skills  Strong proficiency in TypeScript, JavaScript (Node.js, Fastify) and Python Experience building APIs, microservices, event-driven or distributed systems  Good understanding of REST, HTTP, and WebSockets  Familiarity with databases like MongoDB, PostgreSQL, or Redis Working knowledge of Docker, Git, and cloud platforms (e.g. AWS, GCP, Azure)  Knowledge of authentication/authorization (OAuth2, JWT)  Monitoring tools like Grafana, Prometheus, or ELK Stack Additional Information Renesas is an embedded semiconductor solution provider driven by its Purpose, To Make Our Lives Easier . With a global team of over 21,000 engineers and problem solvers in more than 30 countries, we offer the opportunity to work on world‑leading technology for Automotive, Industrial, Infrastructure, and IoT, shaping a safer, healthier, greener, and smarter future. At Renesas, TAGIE is our culture, grounded in being Transparent, Agile, Global, Innovative, and Entrepreneurial. It shapes how we work, grow and deliver on our purpose together. This collaborative spirit and mindset drive our semiconductor technology to transform industries and impact millions of lives. We believe in rewarding our employees with a competitive benefits package alongside their salary. More information will be provided during the hiring process. Are you ready to join our team and shape the future with us? Renesas Electronics is an equal opportunity and affirmative action employer, committed to supporting diversity and fostering a work environment free of discrimination on the basis of sex, race, religion, national origin, gender, gender identity, gender expression, age, sexual orientation, military status, veteran status, or any other basis protected by law. For more information, please read our  Diversity & Inclusion Statement . Company Description Renesas is one of the top global semiconductor companies in the world. We strive to develop a safer, healthier, greener, and smarter world, and our goal is to make every endpoint intelligent by offering product solutions in the automotive, industrial, infrastructure and IoT markets. Our robust product portfolio includes world-leading MCUs, SoCs, analog and power products, plus Winning Combination solutions that curate these complementary products. We are a key supplier to the world’s leading manufacturers of electronics you rely on every day; you may not see our products, but they are all around you.   Renesas employs roughly 21,000 people in more than 30 countries worldwide. As a global team, our employees actively embody the Renesas Culture, our guiding principles based on five key elements: Transparent, Agile, Global, Innovative, and Entrepreneurial. Renesas believes in, and has a commitment to, diversity and inclusion, with initiatives and a leadership team dedicated to its resources and values. At Renesas, we want to build a sustainable future where technology helps make our lives easier. Join us and build your future by being part of what’s next in electronics and the world.