Top Software Engineer Jobs in Poland

Build and optimize the core edge platform for a hybrid edge-cloud video security system. Implement streaming, recording, on-device AI, and low-latency communication. Profile and tune CPU/memory, improve concurrency and performance, containerize workloads, and collaborate with AI/ML engineers to deploy models on resource-constrained devices.

Build and ship secure, production-ready CI/CD and AI-integrated features end-to-end. Design, implement, and iterate on products (e.g., hardened GitHub Actions, agent features), work closely with Product and front-end teams, make architectural decisions, and extend Chainguard's agentic AI capabilities into customer-facing experiences.

Build and maintain user-facing features and interfaces for Restream web services. Design and implement UI and business logic, collaborate with product designers and engineers, perform code reviews, improve reliability and scalability, and evaluate emerging technologies.

Join a scrum team to design, develop, test, and support enterprise Financial Instruments Life Cycle products. Write C# code, learn and work with APL, implement E2E/API/unit tests, collaborate with product and technical leads, support legacy systems, improve automation/tools, and work full-stack (SOA).

As a Senior Software Engineer, you will design and implement backend services, handle large data sets, build scalable systems, and collaborate with teams to enhance AI-driven products.

Join the Kubernetes product team to design and implement Kubernetes operators and addons, write high-quality Golang and Python code, debug issues, collaborate with a distributed team, mentor colleagues, and contribute to open-source integration and lifecycle management. Travel 2–4 weeks yearly for team events.

Design, develop, and maintain scalable backend services and APIs for an access control IoT platform. Build device communication layers, contribute full-stack features (including Ember.js), lead technical projects, mentor engineers, own development lifecycle, test and monitor production, and work hands-on with access control hardware.

The Software Engineer will integrate corporate systems with external SaaS, develop web applications, design APIs, automate processes, and mentor team members while ensuring performance and reliability of corporate platforms.

Front-end engineer responsible for building and maintaining complex Angular (2+) applications, using reactive patterns (RxJS/observables), writing unit tests, optimizing web performance, producing documentation, and collaborating with design, security, operations, and product teams.

Build and maintain services and tooling to automate and secure network lifecycle across data centers. Implement CI/CD, staged rollouts, drift detection, observability pipelines, and APIs that integrate network source-of-truth with the cloud platform. Collaborate with network engineers and SREs to turn operational pain into production-grade automation and tooling.

Design, develop, and maintain full-stack and backend software enabling communication between IoT devices. Participate across the SDLC, integrate new tools, write unit tests, collaborate with cross-functional teams, and balance rapid delivery with long-term stability.

Work on YDB distributed storage and database systems to maximize performance on modern and legacy hardware (NVMe, HDD, DPUs). Reengineer components for low-latency, high-throughput workloads, profile and debug production systems, and design resilient distributed storage primitives. Collaborate on incident resolution and production deployments to support Nebius cloud services.

Work on Percona's open-source MongoDB operational tools (primarily ClusterSync and also Backup). Build and harden a Go-based replication engine handling initial cloning and continuous change streams, ensure correctness and fault tolerance at scale, support sharded clusters, optimize performance and resource usage, and maintain CLI/HTTP APIs, metrics, logging, tests, and packaging. Collaborate openly via GitHub pull requests and JIRA.

Develop core backend components for a blockchain network, focusing on networking, reliability, scalability, and high-quality software practices.

Develop and enhance front-end, server-side, and database applications, focusing on blockchain products while ensuring high performance and security.

As a Distributed Systems Engineer, you'll design and evolve LiveKit's core systems, implement resilient architectures, and enhance reliability and developer velocity, working on critical features in production environments.

Design and evolve core control, data, and observability systems; implement resilient region-spanning architectures; build libraries, protocols, and tooling; diagnose and harden critical paths using metrics, tracing, and testing; and shape platform capabilities across identity, scheduling, observability, and distributed state management.

The role involves designing and evolving core systems at LiveKit, implementing resilient architectures, and building tools to enhance system reliability and developer speed. Strong distributed systems experience and programming skills are essential.

Design, implement, and operate low-latency, highly available distributed control, data, and observability systems. Build region-spanning architectures, libraries, protocols, and tooling; diagnose and harden critical paths using metrics, tracing, testing, and real traffic; and shape platform capabilities around identity, scheduling, observability, and distributed state management.

Develop and maintain the open-source k0s Kubernetes distribution and related CNCF projects. Design and integrate cloud-native features, monitor container ecosystem developments, influence product roadmaps, and serve as a cloud-native technology subject matter expert and evangelist. Collaborate remotely with European-based maintainers and broader open-source communities while writing clean, maintainable Golang code.

Design and implement scalable backend services and APIs with tight AI/LLM integration. Collaborate with product and data science teams to operationalize models, deploy microservices (Docker/Kubernetes), maintain CI/CD and reliability, mentor junior engineers, drive technical best practices, ensure security and compliance, and lead feature development and documentation.

Design, implement, and maintain scalable backend services and APIs with LLM/AI integration. Collaborate cross-functionally to operationalize AI models, lead projects, mentor engineers, ensure reliability, security, and CI/CD-driven deployments, and drive technical best practices.

As a Senior Software Engineer, you will design, develop, and maintain platform services for Aras Innovator, focusing on cloud, SaaS, and hybrid environments while ensuring system stability, reliability, and performance.

As a Senior Software Engineer, you will develop and manage a MongoDB solution on various platforms, ensuring reliability and security while contributing to a small team focused on impactful projects.

Lead architecture and engineering for a real-time fraud prevention platform, designing high-throughput, low-latency distributed systems, driving performance optimization, mentoring engineers, defining standards for observability and operational excellence, and partnering with product and leadership to deliver scalable fraud detection services.