Top Software Engineer Jobs in Poland

The Senior Infrastructure Software Engineer will build scalable systems, manage large data, and innovate solutions for performance and reliability, impacting millions of users.

Lead SAP-focused engineering to design, develop, and integrate ABAP-based solutions between SAP (S/4HANA/ECC) and BlackLine Cloud. Provide technical architecture, troubleshooting, performance tuning, documentation, testing, release support, mentoring, and act as Scrum Master while ensuring high code quality and aligning product and stakeholder requirements.

Lead SAP ABAP development and integration of BlackLine applications with SAP Cloud. Design, develop, test, tune, and maintain scalable ABAP solutions (S/4HANA, ECC). Serve as technical lead, mentor junior developers, perform releases and off-hours support, collaborate with product and engineering teams, and document technical specifications and test plans.

Founding Staff Engineer to design and implement scalable, secure SaaS architecture, champion AI-accelerated development, deliver high-impact features, collaborate on product roadmaps, and mentor engineering team members to establish best practices.

Develop, test, and maintain avionics software and model-based designs. Create unit/integration tests, support V&V, run CI/CD with Git, work with containerized environments, follow aerospace standards (DO-178C), participate in code reviews, and support sprint planning and continuous improvement.

Develop and maintain internal tooling and processes for building, testing, integrating, and releasing the ML software stack. Collaborate with developers, QA, and architects to ensure reproducible, secure builds, resolve integration issues, and contribute fixes to the ML stack.

Design and develop scalable, high-quality backend systems for traffic automated road closure detection, handling the full software development lifecycle.

As a Software Engineer in Infrastructure Reliability, you'll build distributed systems that enhance platform reliability, implement traffic control mechanisms, and develop monitoring tools, working closely with diverse teams.

Build end-to-end full-stack AI features on a Ruby on Rails backend and React frontend, including LLM inference infrastructure, RAG, AI agents, and evaluation/observability. Design and run experiments (A/B tests), optimize systems for production performance and reliability, and iterate rapidly with product and design partners.

Build and evolve Circle Discover marketplace features: high-converting purchasing flows, algorithmic recommendations, content feeds, and listings. Work across a Ruby on Rails backend and React/Next.js front-ends, optimize performance and SSR/SSG, collaborate with designers and leaders, and improve codebase quality while shipping at pace in a distributed remote team.

Build production-grade Go services and Kubernetes components (CRDs/operators) to expose accelerator hardware for scalable AI compute. Ensure reliability, performance, and observability; collaborate with hardware, cloud, and ML teams; lead technical initiatives and mentor engineers.

Develop systems for monitoring and predicting flight trajectories in aviation and defense. Create and deploy features tackling real-world optimization problems using a modern tech stack.

Build scalable backend systems and data pipelines to power consumer credit reporting. Partner with Product, Compliance, Servicing, and Credit teams to design robust reporting systems, ensure operational availability, monitor metrics, support on-call, write well-tested code, debug large codebases, and contribute to team growth and hiring efforts.

Lead Go-based development to integrate a new AI accelerator into Kubernetes clusters, mentor engineers, collaborate cross-functionally, troubleshoot complex issues, contribute to upstream projects, and maintain documentation.

Design, build, and operate low-latency, strongly consistent distributed database systems. Implement replication, consensus, caching, and performance improvements. Run and maintain production services including on-call rotation, collaborate on roadmaps and system designs, and write performance-critical code in systems languages.

Design, implement, test, and maintain backend features and full‑stack functionality. Collaborate with frontend, QA, and product owners, write unit/integration tests, perform code reviews, work with Git and CI/CD, and develop in containerized environments (Docker). Participate in sprint planning and continuous improvement.

Design, implement, test and maintain responsive frontend applications using JavaScript/TypeScript and modern frameworks. Own end-to-end features, write unit/integration tests, perform code reviews, collaborate with cross-functional teams, use Git, CI/CD and containerized (Docker) development, and contribute to sprint planning and process improvements.

The C++/Linux Software Engineer will build software for Boeing systems, perform engineering activities, and collaborate with teams to meet project goals and improve processes.

Design, implement and test 5G RAN baseband scheduler (UPC) features across full lifecycle. Contribute to architecture, improve scheduling software quality, implement backlog items, collaborate with architects, and support customer/live-network feedback.

Work on Servicing International to build purchase protection (disputes/refunds) and agent tooling. Implement web UIs and scalable APIs, collaborate with global teams, participate in on-call rotation, and deliver well-tested, maintainable code.

Develop and support RAN/5G software while participating in the software development lifecycle (study, coding, testing, documentation). Troubleshoot customer issues, reproduce faults, configure Ericsson environments, learn RAN architecture and 3GPP standards, and explore AI/ML solutions to improve operational efficiency. Work under mentorship with training and hybrid hours.

Design and build LLM-based autonomous security agents and self-healing remediation pipelines. Integrate AI-driven threat detection into CI/CD and GitOps workflows, automate vulnerability research, patching, and security orchestration across cloud-native infrastructure.

Join Ericsson as an intern in RAN Traffic Control to develop and support 5G Radio Access Network software. Participate in the full software lifecycle—study, coding, testing, documentation—troubleshoot issues, reproduce faults, manage configurations, and explore AI/ML solutions to improve operations while being mentored by experienced engineers.

The Infrastructure Software Engineer will build and optimize systems managing vast data, collaborate with teams for reliability, and handle operational issues.

As a Staff System Software Engineer, design and implement OS kernel and device driver software, collaborate with hardware teams, and participate in agile development.