April 9, 2026

Senior Java Developer

Senior • Remote

100 - 150 PLN/hr

Warsaw, Poland

About position:
We are currently building our talent pool for future Senior Java Developer roles. As our company is expanding, you may have the opportunity to work on a variety of software solutions across multiple initiatives, including projects we will be delivering in the future, from building native AI solutions to modernizing legacy systems. If you enjoy collaborating in a skilled team and are committed to delivering top-notch software, we’d love to connect.

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), engineering consultancy providing software development and consultancy. Our primary expertise is systems architecture and 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 and intellectual curiosity. 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.