Top Software Engineer Jobs in Poland

Senior full‑stack engineer responsible for designing, implementing and maintaining front‑end and back‑end features, owning feature delivery, driving test automation and CI/CD, contributing to architecture, mentoring teammates, and improving development processes within an enterprise fintech product.

Lead technical design, development, and test automation for enterprise investment-operations software. Drive automation-first practices, CI/CD improvements, test architecture, and mentoring. Collaborate with cross-functional stakeholders, perform root-cause analysis, and implement tooling and process enhancements to ensure high-quality delivery.

Design, develop, and maintain backend systems (currently in APL), drive technical design and architecture, mentor teammates, ensure code quality via unit/integration tests and CI/CD, diagnose performance issues, use Git workflows, and collaborate with product and cross-located teams to deliver Private Debt functionality.

Lead design, development, and test-automation for enterprise investment operations products. Provide technical leadership, define test architecture, drive automation-first practices, improve CI/CD pipelines, mentor engineers, and collaborate with stakeholders to ensure high-quality delivery.

Lead hands-on SRE/DevOps engagements to improve CI/CD, automated testing, secure deployments, observability, dependency updates, containerization, and cross-datacenter resilience. Drive TDD, test data/masking, library/runtime upgrades, Renovate automation, branch/source control best practices, secrets management, and automated DB and software deployment processes.

Lead architecture and reliability for a high-scale alerting pipeline: evaluate rule- and ML-based detections, ensure end-to-end delivery and idempotency, correlate diverse telemetry into topologies for LLM-driven reasoning, mentor engineers, and drive org-level technical decisions.

Design, build, test, deploy, and support distributed, cloud-native Import/Export services. Create resilient architectures meeting SLO/SLA targets, own production systems and on-call duties, drive observability and CI/CD automation, mentor engineers, and partner with Product to shape the roadmap.

The Senior Principal Software Engineer will define technical architecture, lead engineering efforts, mentor teams, and enhance platform performance while building scalable cloud applications and systems.

Design, build, operate, and support resilient distributed platform services. Write maintainable code, troubleshoot production issues, improve reliability and observability, and assist internal teams. Participate in on-call rotations and collaborate on platform evolution.

Design, implement and maintain Layer1 control software for physical network interfaces. Develop features in C/C++ and Python, build tests and telemetry, collaborate with hardware, optics, and support teams, and provide technical leadership and mentorship.

Senior individual contributor responsible for designing, developing, and supporting large-scale software applications and data platforms. Leads technical design, implements ETL and big-data solutions, builds CI/CD and infrastructure-as-code, mentors engineers, and collaborates with cross-functional stakeholders to deliver scalable, secure cloud solutions.

Design, develop, and deploy Generative AI and ML solutions (LLMs) on cloud (primarily GCP/Vertex AI). Build backend services in Python, collaborate with data scientists and product owners, and drive projects from design to production.

Design, build, and operate distributed, high-volume transactional backend services in Go. Own scope, architecture, correctness guarantees, production behavior, observability, and automated verification. Collaborate across product, infra, and QA while using agent-driven engineering practices.

Lead QA efforts for a scrum team, design and automate functional, integration, system, and acceptance tests (PyTest), integrate tests into CI/CD, build testing tools and scripts, and apply new approaches including AI to improve distributed Big Data backend testing.

Design, build, and optimize high-performance distributed storage and backend infrastructure in C/C++. Drive architecture for availability, consistency, replication, and performance. Debug complex production issues across application, networking, file systems, and kernels. Own features end-to-end from design through production observability.

Build and optimize the core edge platform for hybrid edge-cloud video security devices. Develop streaming, recording, and low-latency AI processing; ensure high-performance, concurrency-safe systems; profile and fix CPU/memory bottlenecks; integrate secure communications with cloud; collaborate on deploying on-device models; participate in code reviews, debugging, and performance tuning across the stack.

Design and implement complex automotive infotainment features, integrate Android (AOSP) with low-level layers (Yocto/QNX), improve platform security (secure boot, OTA, TEE), support certification/compliance, perform root-cause analysis for stability issues, participate in code reviews and create technical documentation.

Test and validate event-driven microservices: design and implement automated REST API tests, analyze failing tests with Splunk, obtain test data, perform performance testing with Gatling, and maintain CI/CD pipelines in Azure DevOps. Work with Kafka-based systems and use Java, SQL, REST Assured, and common test tools to ensure backend stability and quality.

Design, implement and maintain automated tests for event-driven microservices. Automate REST API and performance tests (Gatling), analyze failing tests with Splunk, obtain test data, and work with CI/CD pipelines in Azure DevOps.

Design and implement automated test strategies; create and maintain automated UI, API and regression tests; integrate tests into CI/CD pipelines (Jenkins/GitLab); collaborate with developers on code quality; identify and automate test processes; train team on automation best practices; monitor test results and implement organization-wide regression testing.

Lead end-to-end validation of battery energy storage software and systems. Design, develop, and run automated and manual tests (functional, stress, thermal, fault‑injection), build and maintain hardware-in-the-loop test setups, analyze test data, diagnose hardware/firmware issues, produce reports/dashboards, ensure traceability to safety requirements, and mentor team members while collaborating closely with Firmware, Systems, and Quality teams.

Design, implement, and scale robust Rust services and libraries for trading, payments, and crypto. Build low-latency distributed systems using RPC, Kafka, and event-driven patterns. Write testable, high-performance asynchronous network code, debug across OS/network/application stacks, own systems end-to-end, and mentor other engineers while collaborating with product teams.

Develop, test, and maintain Mapbox tools for managing customer feedback and data corrections, collaborating with editing teams and ensuring optimal service performance.

As a Senior Software Engineer, you will lead your team in shipping features, making technical decisions, and mentoring others to scale products effectively.

As a Go Software Engineer for Identity Management, you will design, implement, and enhance identity management solutions, collaborate with a distributed team, and contribute to the development of authentication and authorization systems.