Senior BackEnd Engineer

Join to apply for the Senior BackEnd Engineer role at Qualifyze. We are looking for a Senior Backend Engineer to join our Tech department, specifically the Engineering team. You'll be part of a growing team of over 50 people working across engineering and data. Our stack includes TypeScript with React and Node.js , with Java used for some specific projects. At Qualifyze, software engineering is more than just writing code, it's about shaping the future. We're looking for engineers who understand that every line they write contributes to tomorrow's legacy. On our team, you'll focus on shortening feedback loops, building scalable solutions, and maintaining clear communication with the business. You'll champion clean architectures, solid testing strategies, and domain‐driven design principles to ensure we deliver real value, every step of the way. Responsibilities Guide backend architecture, testing, and technical decisions across teams, ensuring high‐quality delivery and best practices. Own and solve complex tasks within large projects, or lead small projects independently. Communicate and collaborate effectively with team members, the DevOps team, product managers, and the design team. You will lead the technical approach translating product requirements into clear, functional solutions. Mentor peers and support pragmatic decision‐making, balancing business priorities with technical needs. Follow, contribute to, and ensure adherence to our team's working agreements. Work autonomously, taking ownership of stories, programming, and coordinating tasks without external assistance. Requirements We're looking for a strong backend engineer. Experience with our tech stack is a plus, but what matters most is solid backend expertise and alignment with our ways of working. Pragmatic approach to technical solutions. Proficient in clean architectures, good practices and testing. Hands‐on experience with event‐driven systems. Experience with databases such as PostgreSQL. Nice to have: experience designing systems with security and compliance by default, following best practices for regulated environments. You'll be working in an international environment, so daily communication will be in English. Benefits Competitive, annually reviewed compensation package Country vacation package that increases with your tenure Country specific benefits offering incl. private health care, fitness and meal allowances Annual personal development budget to increase your impact Hybrid working mode, plus up to 3 months of the year work from anywhere. All the best kit and tools to work effectively Annual in person all company event and celebration in Europe Working with an exceptional team, doing some of the best work of your career Seniority level: Mid‐Senior level Employment type: Full‐time Job function: Software Development Location: Spain (Madrid, Community of Madrid) At Qualifyze, we value diversity and inclusion, recognizing the strength that complementary talents and perspectives bring to our team. Join us and help drive innovation, tackle challenges, and create meaningful change. We are an equal‐opportunity employer and welcome applications from candidates of all backgrounds, regardless of race, ethnicity, gender identity, sexual orientation, marital status, religion, disability, or age. Our hiring practices are rooted in fairness and respect, and we strive to create a culture where everyone feels valued and empowered. #J-18808-Ljbffr