Lead Backend Engineer at supercharge

Our vision is simple yet powerful: we want to create a place where engineers thrive, taking on exciting projects and using the latest technologies, free from the shackles of legacy solutions. Thanks to the diverse range of industries we work with, our days are never boring: from world-class apps to AR solutions or even programming robots, we’ve got it all covered. We don’t just write code for our screens; rather, we develop impactful products used by millions every day: let them be large-scale public transport applications, leading fintech platforms, or storage solutions contributing to a greener future. We are a team of 100+ engineers (Java, JavaScript, Android, iOS, NodeJS and dotnet platforms) and QA engineers with our coding fingers at the ready working on the next big thing. We value openness, modesty, hard work, and simple yet great solutions. We’re looking for a Lead Backend Engineer who enjoys shaping both systems and people. In this role, you’ll lead a Java/Kotlin backend team, set technical direction, and stay close to delivery by contributing hands-on when it matters. You’ll balance architecture, code quality, and engineering best practices with line management, mentoring, and team development, while collaborating closely with Tech Leads, Architects, and client-facing teams. This is a role for someone who likes ownership, long-term impact, and building teams that scale as well as the systems they work on. Your day to day will include: • Lead and oversee the day-to-day operation of the Java backend team • Continuously monitor overall project health by reviewing and improving development best practices and delivery processes across ongoing Java projects • Take on line management responsibilities, supporting the team’s well-being, growth and performance • Actively maintain and evolve our Java technology stack, primarily Kotlin and Spring Boot, along with related tools and processes • Bring an architectural mindset to planning and technical decision-making • Proactively shape the future of the team by identifying key contributors, future leaders and capability gaps • Support the continuous development of the team by organising regular knowledge-sharing sessions, trainings and workshops • Act as a role model and contribute to thought leadership activities such as writing articles, speaking at meetups and representing the team internally and externally • Take an active part in hiring, onboarding and team planning efforts • Collaborate closely with Tech Leads, Architects and fellow engineers across teams • Support effective collaboration with L1+ teams by enabling smooth handovers, clear documentation and shared ownership across engineering functions • Contribute hands-on when needed by delivering high-quality, scalable and maintainable code on client projects What makes you thrive here: • Strong experience with Java and/or Kotlin and Spring Boot–based backend systems • Solid understanding of software architecture, system design, and modern backend best practices • Proven experience in leading, mentoring, or coaching engineers and supporting their professional growth • Confidence working in a fast-paced, collaborative, and client-facing environment • Pragmatic approach to engineering, balancing technical quality with delivery and business impact • Ability to build technical credibility and trust with clients and stakeholders • Hands-on experience with CI/CD pipelines and cloud-native development • Comfort using AI-assisted development tools and curiosity about experimenting with new technologies and approaches • Strong communication skills, an ownership mindset, and a proactive attitude • Good to have: experience with .NET and/or Python About our Budapest office Budapest is where it all started for Supercharge - this is our headquarters and the beating heart of our company. We have local offices in several countries, but this is where the real magic happens. A buzzing, vibrant space filled with talented individuals dreaming up and delivering amazing products for our clients. This Office of the Year award-winning space is home to our legendary after-work events, and as located in the heart of the city, putting us just steps away from some of the best restaurants, cafes, and bars around.