Staff Software Engineer (Java) 💰 Salary: 30,000 - 36,000 PLN 🌎 Hybrid (3 days/week in office) 🕦 Full-time 📍 Warsaw ☑️ B2B or Contract of Employment We are looking for a Staff Software Engineer for a partner client, which is a technology company that helps businesses use artificial intelligence to run more efficiently and grow faster. They build and provide digital platforms and consulting services that make it easier for companies to manage operations, analyze data, and improve performance. Their solutions combine AI, automation, and deep business expertise to help organizations improve workflows, gain insights, and create more value.Requirements: 10+ years of professional experience in software development Experience working with Java (Spring, Spring Boot) and React 3+ years in an architect or technical lead role Understanding of front-end and back-end integration, state management (e.g., Redux), and responsive design Experience designing and implementing RESTful APIs and microservices Knowledge of cloud platforms (AWS, Azure, or GCP) and containerization tools (Docker, Kubernetes) Solid understanding of database technologies (SQL and NoSQL) and ORM frameworks Experience with CI/CD pipelines, version control systems and DevOps practices Strong grasp of architectural patterns such as MVC, MVVM Experience working with event-driven architecture and microservices Responsibilities: Designing and documenting application architecture using Java (Back-end) and React (Front-end), ensuring solutions are scalable and high performing. Guiding and mentoring development team, promoting adherence to the architectural principles and best coding practices. Leading the design and development of complex systems, integrating front-end and back-end technologies seamlessly Overseeing code reviews to maintain high-quality coding standards and adherence to best practices Research and recommend new technologies, tools, and best practices to enhance development workflows and system performance Collaborate with stakeholders, product managers, and development teams to translate business requirements into effective technical solutions Develop and maintain architectural diagrams, technical documentation, and design specifications. Identify potential technical risks and define mitigation strategies throughout the design and development phases. Get to know DevsDataWe are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities.Find out more: https://devsdata.com