Top Software Engineer Jobs in Poland

Design, develop, and operate cloud-native applications and backend services using C#/.NET on Azure. Build integrations, APIs (REST/OpenAPI), microservices, and event-driven systems; implement observability, automated testing (xUnit/NUnit), Entity Framework Core, and apply TDD/DDD. Leverage AI coding assistants to accelerate development.

Build, deploy, and productionize enterprise-grade AI solutions and agents using Snowflake AI Platform. Architect scalable ML pipelines, data models, ETL/ELT processes, and observability. Partner with customer data science and engineering teams to translate business needs into production systems, iterate rapidly, and ensure operational excellence and performance at scale.

Develop and maintain Java and Angular applications supporting telecommunications BSS, billing, and customer portal systems. Responsibilities include analyzing requirements, building REST APIs and microservices, integrating systems, optimizing performance, participating in testing, code reviews, and deployments, and collaborating within a Scrum team. The role requires Java, Angular, Spring Boot, SQL, Oracle, PostgreSQL, Git, Docker, and REST API expertise. Telecom, billing systems, CI/CD, messaging, automated testing, and secure application experience are advantageous.

Design, develop, and maintain scalable backend services and APIs for broadband and mobile applications using Java and Spring Boot. Collaborate within a cross-functional agile team, create automated and integration tests, conduct code reviews, support CI/CD and platform reliability, fix production issues, and transfer knowledge to internal development teams.

Canonical is hiring a Software Engineer to develop features for Kubernetes, focusing on operators and integrations while collaborating in a distributed team.

The Lead Software Engineer designs, develops, and deploys applications, driving technical direction and mentoring engineers while ensuring high performance, security, and scalability in cloud environments.

As a Senior Software Engineer, you'll design, build, and optimize data-driven solutions in a collaborative environment, focusing on modern data platforms and driving technical excellence.

Develop and maintain a high-performance cross-platform C++17 navigation library for iOS, Android, and embedded automotive systems. Improve map-matching, dead-reckoning, route following, traffic incident handling, predictive caching, and offline routing. Integrate the Valhalla routing engine and build resource-efficient features under strict CPU and memory constraints. Engineers will also use AI tools thoughtfully in development and discuss their engineering workflow during interviews.

Design, implement, deploy, and maintain scalable backend ingestion pipelines for Elastic’s observability products across major cloud providers. Own features from concept through delivery, provide escalated customer support, monitor alerts, define SLIs and SLOs, participate in on-call rotations, review code, mentor peers, and improve system reliability. The role requires expertise in Go, Kubernetes, Terraform, Kafka, distributed systems, microservices, and observability technologies, with interest in OpenTelemetry and AI-assisted development.

Develop and maintain web-service features, design backend APIs and business logic, review code, and improve production infrastructure reliability, redundancy, and resilience. The role requires strong programming, database design, web-service API, AWS, Linux, Docker, Kubernetes, and continuous deployment experience, along with communication, analytical, and teamwork skills.

Principal Software Engineer responsible for architecting and delivering a scalable AWS-native platform supporting data pipelines, APIs, GenAI, and high-volume content processing. The role leads technical direction, system design, reliability, observability, testing, incident reviews, and engineering standards. Responsibilities include mentoring engineers, coordinating cross-team dependencies, guiding LangGraph-based RAG and LLM evaluation pipelines, and communicating architectural decisions and risks to technical and business stakeholders.

Design, build, deliver, and maintain backend software features and highly available microservices. Improve performance, scalability, reliability, and observability; resolve complex production issues; contribute to incident response and postmortems; and make technical decisions for owned services. Collaborate with Product Management and SRE/DevOps, maintain strong code quality and operational excellence, use AI coding tools, and mentor junior and mid-level engineers.

Design, implement, test, maintain, and optimize Java applications and services. Translate business and technical requirements into clean code, participate in code reviews and integration testing, collaborate with international cross-functional teams, document processes, and contribute to technical problem-solving. The role requires regular office visits in Katowice and occasional international business travel.

Design and implement full-stack, cloud-native web applications using .NET and Angular/React. Own components end-to-end, shape architecture, build CI/CD and automated tests, containerize services with Docker/Kubernetes, support production operations, and mentor mid-level engineers while collaborating in Agile teams.

Provide technical support for applications: investigate and resolve issues, develop and implement interfaces, create support documentation, collaborate with Design/Test/Dev teams, estimate resources, and monitor project performance.

Investigate and resolve verified application issues, develop and implement interfaces, create technical support documentation, collaborate with design, test and development teams, provide user support, estimate resource timings, and monitor project performance to meet goals.

Design and build scalable backend systems for PlanetScale's database platform (Vitess/Postgres), collaborate on distributed systems challenges, work autonomously and with customers, optimize performance, and mentor engineers while operating systems at production scale.

Design, build and operate containerised Spring Boot and Python microservices and RESTful APIs on AWS (ECS). Implement event-driven integrations with Kafka/MSK, ensure API security, CI/CD, observability, and collaborate with architects, data engineers and product teams to deliver reusable integration patterns for an Operational Data Store.

Architect, develop, and scale cloud services, dashboards, and data pipelines to support robotics and autonomous vehicle telemetry. Integrate IoT devices with Azure services, build APIs/microservices, implement observability and CI/CD, validate systems in lab and field, and mentor junior engineers.

Design and develop software solutions for AI/ML applications, propose new approaches to optimization problems, and collaborate with global teams in research and development.

The .NET Software Developer will design and maintain backend components using .NET technologies, develop RESTful APIs, and collaborate with teams to improve system performance and scalability.

Design, develop, and maintain scalable Python/Django backend services and RESTful APIs for financial products. Implement data models, write tests, optimize performance, ensure availability and security, participate in code reviews, and collaborate with cross-functional teams to deliver features and maintain production systems.

Design, implement, test, and maintain Java applications for telecommunications and optical networking. Participate across the software lifecycle, troubleshoot defects, write unit/integration tests, perform code reviews, and collaborate with architects and product teams.

Design and implement complex customer-facing frontend features using TypeScript and React. Provide technical leadership, mentor junior engineers, drive frontend architecture and best practices, improve performance and accessibility, partner with product/design, integrate with backend APIs, and manage technical debt and scalability.

Join a scrum team to develop and support enterprise post-trade/financial-instrument lifecycle products. Write C# code, work with APL, implement features, create and run automated and manual tests, collaborate on requirements, support legacy systems, participate in sprint ceremonies, and continuously improve development practices while growing toward full-stack knowledge.