Oferty dla System Developer praca Polska

18.02.2026 | Pełny etat | Wysokie Mazowieckie | CRYSTAL BLOCKCHAIN B.V.For the Core Platform, Data Pipelines, DevEx, and DevOps squads. Ensure the delivery of robust, high-performance data pipelines, including blockchain integrations, with a focus on scalability and reliability. Advocate for best practices in software development, DevOps, and developer productivity across all

18.02.2026 | Pełny etat | Gdańsk (Gdańsk) | AVAG Holding SEInternal business processes by a new enterprise architecture solution which will be developed from scratch. RESPONSIBILITIES Backend development, ensuring high-quality code and adherence to best practices. Collaborate with cross-functional teams, including frontend developers, DevOps, and product owners

18.02.2026 | Pełny etat | Gdańsk (Gdańsk) | Lufthansa Systems Poland sp. z o.o.We are looking for qualified Java Developer for our project, which is part of our main product - Lido Flight. The main task is to support the team in the development of the In Flight Optimization (IFO). IFO is a strategic initiative of the Lido portfolio. It is a module, which provides real-time re

18.02.2026 | Pełny etat, Freelancer | Kraków | Espeo SoftwareSenior Java Developer SKILLS Java syntax C+ PostgreSQL Git B2B PLN 125 - 165 - Hour LOCATION REMOTE (POLAND) START DATE March 2026 END DATE June 2026 Key Services and Requirements A Roadmap to Your Professional Success Scope of services Rewrite existing system components from C+ to Java

18.02.2026 | Pełny etat | Wysokie Mazowieckie | Sii% of the time), particularly in architecture-critical areas Ensure smooth integration with backend systems, APIs, and microfrontend architectures Establish and promote best practices, standards, and patterns for frontend development Review code and architectural decisions to maintain consistency and technical

18.02.2026 | Pełny etat | Wysokie Mazowieckie | dotLinkersAnd best practices related to CI/CD tooling and developer productivity Qualifications 2 years of professional experience delivering successful SaaS products. 5 years of professional experience in software development Strong computer science fundamentals in algorithms, data structures, and computational

18.02.2026 | Pełny etat | Wrocław | STATSCORE Sp. z o.o.We are looking for long-term role as Senior Developer requires quality engineering experience. You will be a team player cooperating with other Developers, Product Manager, QA, System Architect and Tech Leader. You will spend your time mostly on- coding new features (~70

18.02.2026 | Pełny etat | Gdańsk (Gdańsk) | MargoIn enterprise-scale systems Collaboration with experienced developers and architects Friendly and supportive MARGO team

18.02.2026 | Pełny etat | Poznań | MiquidoPerformance optimization and responsiveness improvements for complex dashboards Debug and fix issues identified in QA or production environments Participate in Scrum-driven software development, collaborating with backend developers, QA, and UX/UI designers Use AI-assisted development tools to improve coding