Senior Java Developer

About position:We are looking for Senior Java Developers who enjoy collaborating in a skilled team and are committed to delivering top-notch software projects. As our company grows, you will have the opportunity to work on a variety of software solutions across multiple initiatives, from building native AI solutions to modernizing legacy systems.We're not prescriptive about background. Whether you've worked in fintech, SaaS, e-commerce, or enterprise systems, what matters is that you've shipped production software at scale, cared about its reliability, and learned from what broke.Who we are: We are Inspeerity (part of DevelopX group), a modern software house, providing software development, consultancy, and maintenance services. We specialize in full stack development – from defining project requirements, to designing, building, and deploying software applications for web, backend, enterprise and mobile. We are crazy about technology, serious about people. TL;DR • Who: Senior Java Developer• Contract Type: B2B Framework Agreement.• Salary range: Up to 150 PLN/h• Company: Software House What you’ll be doing:  • Designing, implementing, and maintaining high-quality Java applications. • Developing backend components and APIs to support scalable software solutions. • Collaborating with cross-functional teams. • Reviewing and refactoring code to ensure maintainability, performance, and security. • Participating in technical design discussions and contributing to architecture decisions. • Writing and maintaining technical documentation for systems, APIs, and processes. • Supporting deployment and integration of applications in different environments. You will be the best fit if you have:  • 5 years of experience as a Java developer, preferably with exposure to Spring Boot, Hibernate, or similar frameworks. • Strong understanding of object-oriented programming, design patterns, and clean code principles. • Experience with RESTful APIs and web services integration. • Familiarity with SQL and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB). • Experience with cloud environments such as AWS, Azure, or GCP. • Knowledge of CI/CD pipelines and version control systems (e.g., Git). • Strong problem-solving skills and ability to troubleshoot complex issues. • English level B2 or higher. • Experience working in Agile/Scrum teams and contributing to iterative development.  • Experience with AI technologies, including using AI tools for development and building AI-powered features or applications. What we offer: • Remote work or working from our Bialystok, Warsaw, Rzeszow offices. It's up to you!  • Collaboration with experienced and engaged people who will appreciate your work and support you whenever you need it 😊  • Hybrid and flexible cooperation model based on a B2B Framework Agreement.  • Great working conditions and best equipment: Dell or MacBook, your choose.   Good to know:We don’t require a degree. We don’t do whiteboard puzzles or trick questions. Our interview process is practical: a technical conversation and a chat about how you work.We value direct communication, intellectual curiosity, and low ego. If you’re someone who gets excited about debugging a tricky concurrency issue - not because you have to, but because you want to understand it — we’ll get along well.