Java Developer

Lingaro REMOTE WARSAW LUBLIN 2026-08-06

  • At least 4 years of experience as Java Developer.

  • Proficiency in Java server-side programming.  

  • Experience with database systems (e.g., MySQL, PostgreSQL, MongoDB). 

  • Proven experience in back-end development and building scalable web applications. 

  • Familiarity with cloud platforms (e.g., AWS, Azure, GCP) is a plus. 

  • Strong analytical and problem-solving skills with attention to detail. 

  • Effective communication skills to collaborate with cross-functional teams. 

  • Ability to adapt to changing project requirements and technologies. 

  • English at least B2.


  • Stable employment. On the market since 2008, 1500+ talents currently on board in 7 global sites.

  • “Office as an option” model. You can choose to work remotely or in the office.  

  • Great Place to Work® certified employer.

  • Flexibility regarding working hours and your preferred form of contract.  

  • Comprehensive online onboarding program with a “Buddy” from day 1.   

  • Cooperation with top-tier engineers and experts.  

  • Unlimited access to the Udemy learning platform from day 1.

  • Internal Gallup Certified Strengths Coach to support your growth.

  • Certificate training programs. Lingarians earn 500+ technology certificates yearly.  

  • Upskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly.

  • Grow as we grow as a company. 76% of our managers are internal promotions.  

  • A diverse, inclusive, and values-driven community.   

  • Autonomy to choose the way you work. We trust your ideas.  

  • Create our community together. Refer your friends to receive bonuses.  

  • Activities to support your well-being and health.

  • Plenty of opportunities to donate to charities and support the environment.  

  • Modern office equipment. Purchased for you or available to borrow, depending on your location.

,[Designing, developing, and maintaining the server-side logic of web applications. Implementing scalable and efficient server-side components and APIs. , Working with relational and/or NoSQL databases to store and retrieve data efficiently. Designing and optimizing database schemas for performance and scalability. , Integrating third-party APIs and web services to enhance application functionality. Developing custom APIs to facilitate communication between front-end and back-end systems. , Implementing security best practices to protect against common web application vulnerabilities. Conducting regular security audits and implement necessary measures. , Optimizing server-side code for maximum speed and scalability. Monitoring and troubleshooting performance issues. , Collaborating with front-end developers, UI/UX designers, and other team members to ensure seamless integration of components. , Using version control systems (e.g., Git) to manage and track changes to the codebase. , Conducting thorough testing of server-side components to identify and fix bugs. , Collaborating with QA engineers for comprehensive testing. , Clear and comprehensive documentation for back-end systems and APIs. ] Requirements: Java, Spring, Hibernate, SQL, Azure, GCP, AWS Additionally: Sport subscription, Private healthcare, International projects, In-house trainings, Modern office, No dress code, Free coffee.