Top Software Engineer Jobs in Poland

Senior Software Engineer to design and implement C++/Python software, accelerate workloads with CUDA, develop and maintain Linux kernel modules and system services, optimize system and GPU performance, manage Linux systems, mentor junior engineers, and integrate AI technologies across products.

Build core components of a diagnostic and personalization platform: backend data pipelines, frontends, services for genomic data ingestion, ML model integration, APIs, and cloud infrastructure. Collaborate with product and ML teams, iterate on prototypes and MVPs, and make architectural decisions supporting scalability and reliability.

Design and build the on-prem software stack for ModelVault appliances: containerized inference engines, model integration (LLMs/vision), deployment tooling, CLIs/GUI/APIs, OS and GPU setup, remote updates, telemetry, and collaborate with customers and founding team to iterate and scale the engineering org.

The role involves developing scalable back-end services, designing APIs, collaborating with clients, and managing deployment and operations. Requires expertise in JVM languages and cloud infrastructure.

The Software Development Engineer II will build scalable backend services and data pipelines, ensuring operational excellence and collaborating with teams to deliver high-quality systems.

The Software Quality Engineer will support QA processes, design tests, manage defects, and collaborate in an Agile team to ensure quality in retail software development.

The Senior Software Engineer will focus on optimizing databases, addressing complex issues, and contributing to a new project in a fast-paced environment.

The Sr Staff Software Engineer will design and implement production-grade AI systems, turning POCs into scalable services and leading technical practices in applied AI.

Design and implement core Web3 protocol features and secure smart contracts in Solidity. Integrate blockchain solutions with cross-functional teams, ensure scalability and performance, stay current on EVM internals, conduct code reviews, and mentor junior engineers.

Develop C# components for high-concurrency SIP sessions and RTP/RTCP media handling for mission-critical voice, video, and data. Implement secure media transport (OIDC, MIKEY-SAKKE), parse XML/XSD and multipart MIME, integrate with HTTP/SIP MESSAGE flows and XCAP, and follow OOP, SOLID, and modern CI/CD practices within an Agile team.

Join the ASF QA team to test and improve Aras Innovator web applications. Responsibilities include functional and non-functional testing, creating and maintaining test documentation, developing testing strategies, planning and estimating testing tasks, writing and reviewing automated tests, tracking bugs and quality metrics, participating in Agile ceremonies, and collaborating with developers and stakeholders to ensure delivery quality.

Design, build, and operate cloud automation infrastructure for NVIDIA GPU Cloud. Develop scripts and tools for deployment, image and switch management, CI/CD, monitoring, and automated testing across multi-cloud and multi-OS environments. Apply agentic AI for orchestration, support microservices infrastructure, and provide operational troubleshooting and improvements.

The role involves enhancing software quality through automation, mentoring teammates, and managing testing across complex systems. Responsibilities include improving test metrics, data-driven testing, and CI/CD integration.

Design and implement a video processing engine, develop a cross-platform rendering engine, integrate systems, and optimize performance while collaborating with other engineers.

As a Principal Forward Deployed Engineer, you'll deploy JetBrains Central in enterprise environments, implement AI governance, mentor teams, and advise customers on AI-native development best practices.

Design and build key features for an AI coding platform, focusing on user experience and product growth in a collaborative environment.

The Principal Software Engineer will architect and implement scalable software solutions using Ruby, lead development projects, mentor junior developers, and ensure high code quality.

The Senior Software Engineer will develop and refine ML models, design metrics, implement large-scale projects, and collaborate within a cross-functional team to enhance Snowflake's customer experience engineering solutions.

Be the hands-on technical owner of the LiteAPI product: design, implement, and operate backend/API infrastructure, lead technical decisions, work closely with product, stakeholders, and customers, and mentor engineers while shipping high-impact features in a fast-moving startup.

Design, develop, and verify low-level (computational geometry, algorithms) and high-level application code. Create and specify algorithms, optimize performance and memory using profiling tools, write cross-platform modular code, and support existing product source code.

Build and evolve scalable payment microservices; own features end-to-end; contribute to architecture and technical decisions; collaborate with product, engineering and platform teams; improve performance, reliability and developer experience; write clean, maintainable, well-tested code.

Design, develop, and maintain Python and Go microservices for data ingestion and processing; integrate backend services with BigQuery and cloud data platforms; implement REST APIs; build scalable data processing pipelines using Apache Beam and Dataflow; test and troubleshoot distributed systems; review designs, estimate work, mentor junior developers, and drive performance and reliability improvements.

Build and evolve scalable payment microservices; own features from idea to production; contribute to architecture; collaborate with product and platform teams; improve performance, reliability, observability, and developer experience; write clean, well-tested code.

The Senior Software Engineer will design, build, and maintain software for a marketing platform, mentor junior engineers, and ensure code quality through reviews and testing.

As a Senior Software Engineer, you will lead technical decisions, own complex initiatives, mentor engineers, and improve platform services focusing on cloud infrastructure and developer experience.