Top Software Engineer Jobs in Poland

Design, build, and scale production AI agents and backend services for conversational reasoning, retrieval, tool-calling, and workflow automation. Integrate GDS/APIs, own architecture for distributed AI systems, improve model performance, observability, and evaluation, and define engineering best practices.

Lead architectural and code-level performance engineering for Elasticsearch, from design through production. Develop performance models, optimize distributed systems, profile bottlenecks, build benchmarks and regression detection, and automate profiling and optimization with AI-assisted tooling. Collaborate across teams, embed performance practices into product development, and mentor engineers. The role requires deep Java and JVM expertise, concurrency knowledge, distributed systems experience, and proficiency with performance benchmarking and optimization.

Develop embedded software functionality for ARM-based 5G mmWave radio units. Responsibilities include system architecture, software and Linux distribution testing, troubleshooting, debugging, standards compliance, system integration, and collaboration with engineers and project managers. The role requires Python and embedded development experience; C/C++, Xilinx SoCs, bare-metal programming, CI/CD, Git, Linux build systems, kernel drivers, and LTE/5G knowledge are preferred.

Design and implement embedded software components, code, debug, test, document, and maintain firmware and hardware integrations. Support cloud connectivity and FOTA solutions, assist test and support teams, participate in planning and customer meetings, follow engineering best practices, report progress, identify process improvements, and escalate technical issues to leads.

Design, build, and operate scalable developer-facing testing infrastructure and tooling: distributed test execution, telemetry, flaky-test detection/self-heal, synthetic test data, GenAI-assisted diagnosis, and integrations with CI/CD and tracing systems to improve pre-production feedback and developer productivity.

Build and scale developer productivity tools and platforms (backend, data, APIs, UX). Collaborate with customers and PMs, write design docs, ensure reliability, model data, and operate services at scale.

Own and build foundational backend services: identity, authorization, audit logging, data pipelines, and low-latency APIs. Architect, implement, monitor, and refactor distributed microservices ensuring high consistency, observability, and automation while partnering with Product and cross-functional teams.

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.

Validate telemetry, events, logs, crash reports and end-to-end data pipelines for Logitech devices. Design and run manual and automated tests, analyze field data and trends, investigate regressions, partner with engineering to root-cause issues, build automation and dashboards, and use AI/analytics to improve software quality and release readiness.

Lead design and implementation of scalable, secure architectures bridging legacy systems and cloud-native platforms. Provide technical leadership, define integration patterns (WebLogic, IBM MQ, Kafka), apply DDD, leverage Azure and Kubernetes, document architectures, and mentor teams to ensure performance, reliability, and alignment with business goals.

Define and evolve system architecture, translate business needs into scalable solutions, drive architectural decisions, contribute hands-on to implementations, modernize monoliths, and promote engineering best practices across teams.

As a Senior Backend Engineer at Guidewire, you'll develop RESTful APIs in Python, optimize solutions for high availability using cloud-native technologies, and collaborate closely with engineers on a strategic insurance pricing platform.

Lead SRE work for a global video platform: own production reliability, on-call and incident response, capacity planning, observability, automation, and database/data-processing resilience. Collaborate across engineering and product to set reliability goals, improve MTTR, and build scalable operational tooling and patterns.

Lead code security strategy and architecture for custom applications and hybrid environments. Perform secure design reviews, threat modeling, dependency and secrets risk assessments, cloud and network misconfiguration remediation, and guide engineering teams on secure-by-design practices and CI/CD/source-control controls. Provide cross-domain security leadership covering application, cloud, network, and AI risks.

Develop new telematics products and improve existing ones, focusing on CAN bus communication and automotive diagnostics, collaborating across teams.

Own end-to-end architecture and roadmap for a network monitoring product: API and UI, topology and dependency modeling, discovery/onboarding, alert history screens, data contracts with telemetry/classification services, performance-focused topology visualizations, cross-team technical leadership, and mentoring.

Design, build, scale, and operate internal CI/CD, testing, and observability tooling. Improve build system maintainability and feedback speed, troubleshoot systems, and implement infrastructure-as-code.

The Senior Software Developer at OneOcean will execute software projects, collaborate with stakeholders, and promote continuous improvement in Python development while using agile methodologies to enhance team collaboration and code quality.

The role involves leading a software team, developing and maintaining applications, troubleshooting issues, supporting operations, and mentoring engineers.

Develop high-quality software for robotics applications focusing on simulations and performance improvement in ROS(2) environments. Requires experience in C++ and Linux.

Designs and executes test plans for Power BI reports, dashboards, ELT pipelines and web-based data tools. Validates data integrity using SQL, verifies transformations and mappings, logs defects, performs regression/integration testing, and collaborates with engineers and analysts to improve reporting and data validation frameworks while ensuring governance and performance.

Design, implement, test, deploy, and operate import/export services for a cloud-native SaaS. Build React+TypeScript UIs, architect resilient distributed systems, own production reliability and on-call duties, improve CI/CD and observability, mentor engineers, and collaborate on product and design system development.

Design, build, and operate cloud-native Import/Export services for RelativityOne. Own production systems and on-call duties, drive observability and CI/CD automation, mentor engineers, and translate business needs into scalable distributed SaaS solutions meeting SLO/SLA targets.

Build and scale the internal developer platform: create tools, services and automation (CI/CD, canaries, feature flags, access workflows) using IaC (Pulumi/Python) and Kubernetes to enable safe, fast shipping. Drive platform initiatives, mentor teams, lead AI tool adoption for engineering, participate in on-call and design/code reviews, and ship major improvements across the organization.

Lead optimization of concurrent systems, scale backend microservices, and collaborate with developers and engineers on deployment for retail solutions.