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.

The Staff Software Development Engineer will design, develop, and support software solutions, focusing on algorithms, code optimization, and modular design while ensuring cross-platform compatibility.

Design and implement backend business logic and orchestration for AI coding agents, integrate agents with product surfaces, external APIs and CLIs, build highly concurrent asynchronous workflows, improve context handling and failure recovery, collaborate with product and ML teams, and own technical design and code quality.

Design, implement, and maintain native iOS features and backend services (C#/Java). Collaborate with product, design, QA, and engineers to deliver scalable, tested, and performant customer-facing mobile experiences. Participate in code reviews, monitoring, and continuous improvement.

Lead backend development and architecture for mission-critical .NET/ C# solutions, implement scalable, secure systems, collaborate with stakeholders, mentor junior developers, and ensure timely delivery using Agile practices.

Design, build and optimise scalable data solutions using Data Lake technologies and Microsoft Fabric. Implement cloud-native services on Azure (AKS), use IaC and containers for reliable deployments, and develop data pipelines with SQL and Spark SQL. Collaborate across Engineering, Architecture and Product, enforce clean code, CI/CD, observability and participate in technical reviews.

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 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.

Build SRE and observability tooling, automation, and standards for dashboards, alerts, SLOs/SLIs, incident response, and operational readiness. Partner with dev teams to enable production readiness, eliminate toil via automation, and improve incident workflows to accelerate outage resolution and learning.

Develop reliable cloud services on the hyperscaler platform, contributing to cloud infrastructure, databases, and monitoring systems. Must write reliable code with team-oriented skills.

Design, build, and operate PKI and certificate-issuance services using C#/.NET and ASP.NET Core. Implement versioned REST APIs, automate certificate and key lifecycles, optimize performance and concurrency, and run cloud-native deployments on AWS/AliCloud with EKS/Kubernetes. Own CI/CD (GitLab/GitHub Actions), observability, secure-by-default practices, documentation, and runbooks while contributing to code quality and peer reviews.

Join a multinational team developing and maintaining C++ software for an aerospace client. Implement, test and optimize code, propose solutions, apply clean-code and performance practices, and maintain legacy code. Collaborate across distributed teams and travel occasionally, with regular office presence in Katowice.

Develop innovative solutions for Mapbox's Navigation SDK, focusing on architecture, quality, and mentoring. Collaborate to deliver high-quality APIs and features, ensuring seamless integration across SDKs.

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.

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 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.

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.

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.

Develop complex cloud-native applications and scalable infrastructure for Altium 365. Work on distributed, high-load microservices using .NET Core/.NET Framework, containerization (Docker, Kubernetes), CI/CD pipelines, and relational databases. Contribute to large-scale data processing, AI/ML-powered search, multi-tenant architectures, and monitoring/observability.

Develop complex cloud-native applications and scalable infrastructure for Altium 365. Work on microservices, distributed high-load systems, data processing, AI/ML-powered features, stateful/stateless servers, and relational databases. Collaborate on architecture, CI/CD pipelines, containerization, and monitoring to deliver production-ready features.

Senior backend developer building cloud-native, multi-tenant applications and scalable infrastructure. Work on distributed high-load systems using Java, AWS, microservices, CI/CD, Docker/Kubernetes, and relational databases. Contribute to data processing, API design, and collaborate across the R&D team to deliver production features.

Design, build, and maintain backend services powering crypto and fiat payments. Collaborate with product and stakeholders, deliver reliable APIs, implement asynchronous microservices, support production systems, participate in on-call rota, and contribute to engineering standards and product launches.

Develop, debug and maintain C/C++ features for a mission-critical dispatch console. Collaborate cross-functionally, diagnose issues from tests/support, implement improvements, and follow Agile CI/CD practices to deliver reliable, real-time audio and messaging features for public-safety communications.

Join the Commodities Content Onboarding team to develop and maintain Java-based ETL solutions, work with Oracle SQL to retrieve and manipulate data, ensure data quality and consistency, monitor data flows, and collaborate with market analysts and internal teams to onboard external web-sourced commodity fundamentals into production databases.