Java Software Engineer (AWS)
Spyrosoft
⚲ Kraków
120 - 175 PLN/h netto (B2B)
Wymagania
- AWS
- REST API
- Java
- SQL
- HTTP
Opis stanowiska
About the role: We’re building a nationwide EV charging platform that integrates multiple charging networks and vendors into a single, scalable system - and we’re looking for a Senior Java Developer to help us solve the hard parts. You’ll join a mid-sized engineering team working closely with the client’s technical stakeholders. Expect real ownership, architecture discussions, and the opportunity to influence how the platform evolves. Role start date: April 2026 Requirements: • Senior commercial experience in backend development. • Senior-level skills in Java. • Expert-level skills in AWS, particularly serverless services (Lambda). • Very good command of English, enabling daily communication with the client. • Good knowledge of SQL and time-series databases. • Solid understanding of the HTTP protocol and REST API design. • Knowledge of design patterns, programming principles, and unit/integration testing. Nice to have: • TypeScript • Redshift • DynamoDB • WebSockets Main responsibilities: • Design, develop, and maintain backend services using Java within a cloud‑native environment. • Build and optimize serverless applications based on AWS services, ensuring high performance and scalability. • Collaborate with a multi‑member engineering team on architectural decisions and best development practices. • Ensure code quality, reliability, and alignment with the project's technical roadmap. • Communicate effectively with the client in English to clarify requirements and present progress.