Lead Java Developer

We are looking for an experienced Java Tech Lead who will play a key role in shaping technical solutions, guiding the development team, and ensuring the successful delivery of high-quality software products. This position combines hands-on development with technical leadership. You will be responsible for driving architectural decisions, mentoring engineers, collaborating with Product Owners and Business Stakeholders, and ensuring that technical solutions align with business objectives and engineering best practices. Your tasks Leading technical design discussions and driving architectural decisions across the teamEvaluating and proposing technical solutions to ensure scalability, maintainability, and performanceProviding technical guidance and support to developers throughout the software development lifecycleDesigning and developing backend services and REST APIs using Java and Spring BootPerforming hands-on coding for complex features and critical system componentsSupporting production releases and ensuring platform stability Requirements At least 8 years of professional experience in software engineering with JavaPrevious experience as a Technical Lead, Lead Developer, Senior Developer with mentoring responsibilities, or a similar leadership roleStrong expertise in Java 17+ and Spring BootSolid understanding of software architecture, distributed systems, and RESTful API designFluency in EnglishOpen to a hybrid working model with presence in the office 3 days per weekAvailability to support production releases approximately 1–2 times per month during weekends (around 2 hours per occurrence)Fluent Polish requiredResiding in Poland required Job no. JOB-RQREU Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws. Benefits For You Great Place to WorkSolid financial situationContracts with the biggest brandsCentre of internal trainingsMany experts you can learn fromOpen and accessible management teamProfit sharingPassion Sponsorship programRegular integration events and tripsComfortable and well-equipped officesMySii appMedical care