Top Software Engineer Jobs in Poland

Develop and refine machine learning and LLM-based solutions, including agent architectures, embeddings, clustering, summarization, and automated workflows. Design experiments and metrics to evaluate model quality, build Java and Python services hosted on Snowflake and Kubernetes, troubleshoot systems, and collaborate with product, design, and partner teams to deliver features and shape product direction.

Design and develop scalable, high-quality backend systems for traffic automated road closure detection, handling the full software development lifecycle.

Owns the architecture and development of a Python-based automated test framework for hardware validation and production testing. Responsibilities include test execution, configuration, hardware abstraction, diagnostics, reporting, database integration, user interfaces, automated testing, and equipment integration. The role establishes engineering standards, collaborates with electronics and production teams, and resolves complex test-system issues through structured debugging and sustainable improvements.

Develop and maintain public safety telecommunications applications and development/testing tools as part of an Agile software team. The role involves Java backend and frontend development, Linux-based work, Bash scripting, and use of Git, Bitbucket, and Jenkins. The intern will collaborate with distributed teams, work at least 32 hours weekly, and attend the Krakow office two days per week.

Build and maintain production systems for AI music products, including backend services, APIs, workers, media pipelines, model inference infrastructure, queues, scheduling, storage, and observability. The role requires debugging across software and infrastructure boundaries, optimizing distributed systems, and owning technical projects end-to-end. Relevant experience includes media processing, ML infrastructure, cloud platforms, Kubernetes, Docker, Terraform, and large-scale data pipelines.

Backend-focused Software Engineer responsible for designing, implementing, maintaining, and optimizing reliable services primarily in Python and Go for Splunk Cloud application management. The role includes debugging, API design, automated testing, observability, code reviews, Agile delivery, and cross-team collaboration. Engineers may also contribute to React interfaces and reusable UI components while supporting production deployments and operational excellence.

As a Software Engineer in Infrastructure Reliability, you'll build distributed systems that enhance platform reliability, implement traffic control mechanisms, and develop monitoring tools, working closely with diverse teams.

Develop scalable, reliable, high-performance software for Splunk’s Metadata Catalog and knowledge graph platform. Responsibilities include contributing to feature design, building cloud-native services, debugging customer issues, driving software quality, participating in on-call rotations and incident reviews, and integrating new technologies. The role requires object-oriented development, distributed systems knowledge, containerization, cloud platforms, Agile practices, and CI/CD experience.

Develop and deploy deep learning, computer vision, Vision-Language Model, and generative AI solutions for retail imagery. Build AR and spatial computing features using 2D/3D geometry, optimize models for edge devices, benchmark performance, and scale robust algorithms into production across global deployments.

Design, build, and maintain scalable full-stack web applications using Python or Node.js and modern frontend frameworks. Develop APIs, microservices, integrations, and secure user interfaces; contribute to architecture and technical decisions; review code; resolve issues; guide engineers; and participate in estimation, prioritization, and planning.

Develop and maintain performant web applications using Angular and TypeScript. Provide technical leadership, mentor engineers, conduct code reviews, improve code quality and scalability, and collaborate with backend, design, product, QA, and other engineering teams. Own frontend delivery for roadmap projects, contribute to technical planning and Agile processes, and drive initiatives such as technical debt reduction, performance improvements, and system enhancements.

Build and guide scalable full-stack systems, developer-facing web applications, desktop tools, backend services, APIs, UI component libraries, and integrations supporting Netflix’s game lifecycle. Own features from ideation through deployment, improve existing developer tools, collaborate cross-functionally, operate services, participate in on-call support, and lead incident reviews. The role emphasizes developer experience, reusable design, strategic technical decisions, and practical use of AI coding tools and agents.

Develop mission-critical onboard software for autonomous vehicles, collaborating with systems, hardware, and product teams. Solve challenges involving hardware-failure resilience, CPU and heat reduction, and data selection and offload. The role requires backend or infrastructure experience with distributed, large-scale systems and involves debugging and close collaboration with hardware engineers.

Develop and maintain Golang services and RESTful APIs; contribute to AWS, Azure, and GCP cloud infrastructure; deploy containerized services with Kubernetes and Terraform; participate in design, testing, code reviews, monitoring, incident response, and on-call rotations. Collaborate with engineers to improve software, automation, security, reliability, and engineering practices while building cloud-native production expertise.

Design, build, maintain, debug, and deliver scalable SaaS software and reusable components for Splunk’s App Runtime team. Develop features within a microservices architecture, create automated test suites, integrate metrics and service-level indicators, optimize performance, participate in code reviews, and collaborate with product, architecture, UX, documentation, and engineering teams using Agile SDLC practices.

Design and develop robust full-stack applications using Java and Spring Boot. Improve architecture, scalability, infrastructure, CI/CD pipelines, performance, reliability, and resilience. Apply automated testing and high-quality engineering practices, while proactively troubleshooting production issues and ensuring long-term system stability.

Develop and maintain a large-scale AdTech platform through backend and frontend development. Responsibilities include using Java and Spring Boot, working with relational and non-relational databases, integrating APIs and third-party services, researching core technologies, deploying with AWS, Docker, and Kubernetes, and resolving technical challenges in distributed enterprise systems.

Build production-grade Go services and Kubernetes components (CRDs/operators) to expose accelerator hardware for scalable AI compute. Ensure reliability, performance, and observability; collaborate with hardware, cloud, and ML teams; lead technical initiatives and mentor engineers.

Build and maintain performant React web applications using TypeScript and JavaScript. Provide technical leadership and mentorship, collaborate with backend engineers, designers, and product managers, conduct code reviews, and improve code quality, scalability, and maintainability. Own frontend feature delivery, contribute to technical planning, guide implementation and testing, and identify technical initiatives such as performance improvements, dependency updates, and technical debt reduction.

Lead design and delivery of scalable, secure SaaS features for an AI-powered Invoice-to-Cash platform. Own features end-to-end, use AI-accelerated tools, drive technical design, mentor engineers, ensure observability, CI/CD, testing, and enterprise-grade performance and reliability.

Develop systems for monitoring and predicting flight trajectories in aviation and defense. Create and deploy features tackling real-world optimization problems using a modern tech stack.

Build scalable backend systems and data pipelines to power consumer credit reporting. Partner with Product, Compliance, Servicing, and Credit teams to design robust reporting systems, ensure operational availability, monitor metrics, support on-call, write well-tested code, debug large codebases, and contribute to team growth and hiring efforts.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Lead Go-based development to integrate a new AI accelerator into Kubernetes clusters, mentor engineers, collaborate cross-functionally, troubleshoot complex issues, contribute to upstream projects, and maintain documentation.

Own and scale a live production backend supporting real-time communication between apps, animation models, and LLM providers. Design APIs, WebSockets, data storage for companion memory and conversation state, and Cloudflare Workers infrastructure. Improve latency, throughput, cost, observability, alerting, incident response, and documentation while collaborating with the team to ship features end to end.