Top Software Engineer Jobs in Poland

Design and implement scalable backend services for on-prem and SaaS identity recovery (Active Directory, Entra ID, Okta). Influence architecture, integrate with platform products, adopt cloud/containerization and AI capabilities, triage customer issues, and mentor engineers.

Design and develop backend systems for expense management, work in a cross-functional team, optimize application performance, and potentially adopt AI features.

Lead the API development team to design and implement software solutions, delivering scalable APIs while championing best practices and mentoring team members.

Design, build, and operate scalable backend and platform services across cloud environments. Own service lifecycle from design through deployment, observability, troubleshooting, and production support. Drive decisions for data flow, asynchronous workflows, resiliency, and performance. Improve CI/CD, automation, testing, and engineering workflows while collaborating on architecture, ADRs/RFCs, and cross-team technical standards.

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.

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.

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.

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 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.

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.

The Senior Software Engineer will lead the development of a Python-based platform, enhancing a mature system for open-source collaboration, mentoring teams, and driving innovation.

Design, develop, and test firmware for BMS platforms on RTOS or bare-metal systems. Debug hardware-software issues, create unit and HIL tests, run regression suites, write technical documentation, and follow coding standards (including basic MISRA-C). Collaborate with hardware, systems, and data teams across the product lifecycle.

As a Senior Software Engineer, you'll design and develop software applications in a fast-paced environment, mentor teammates, and improve internal and external products.

Design, build, and operate secure, scalable developer platform capabilities (cloud infrastructure, CI/CD, workspaces, automation, templates). Partner with engineering and security teams to standardize developer environments, improve onboarding and developer experience, integrate governed AI tools, and ensure platform reliability through monitoring, runbooks, and operational practices.