Top Software Engineer Jobs in Poland

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.

Design, implement, and maintain scalable full-stack web features across frontend and backend. Collaborate with product, design, and QA to deliver customer-facing functionality, write tests, perform code reviews, monitor production, and continuously improve performance, security, and reliability.

Design, build, and deliver applications in an Agile environment, collaborating with Product Managers and QAs, while leading technical projects.

Design, build, and maintain backend services, REST APIs, databases, and near-real-time and batch data pipelines. Develop a query engine and scalable insights pipelines, collaborate with product and engineering, improve legacy code, and ensure production monitoring, alerting, and tooling for support.

Design, implement, and maintain Java-based enterprise applications for embedded licensing. Analyze requirements, produce technical designs, write clean multithreaded code, perform code reviews, integrate services via RESTful APIs, troubleshoot customer issues with TAC, and mentor junior developers.

Design, implement, test, and maintain cloud-first web applications. Build secure, maintainable code using event-driven architecture and cloud services (AWS/Azure). Collaborate with cross-functional teams, mentor junior engineers, and support CI/CD and PWA development.

Design, build, and operate Threat Protection and ShadowAI services: scalable distributed systems and APIs that detect and control risky web and generative AI usage. Own features end-to-end, maintain availability and latency SLOs, write tests, perform code reviews, use AI-assisted tools, and collaborate with cross-functional teams to improve detection accuracy and production reliability.

Design, develop and maintain automated tests for backend and card-related processes. Verify business logic for commissions, fees and subscriptions, test REST API integrations, analyze defects with developers, participate in CI/CD, maintain test repository, and prepare quality reports while collaborating with analysts, architects and business teams.

Lead architecture and evolution of a Playwright-based test automation platform. Design core framework components, set platform engineering standards, mentor engineers, develop testing strategies, optimize performance and reliability, resolve infrastructure issues, collaborate with product teams, evaluate tools, manage test data and technical debt, and drive documentation and knowledge sharing.

Senior software solutions engineer responsible for resolving complex Ethernet and InfiniBand adapter/DPU issues, developing tooling and features, collaborating with customers and engineering, and improving reliability and experience of NVIDIA networking products. Role mixes 50% customer support/issue ownership and 50% R&D.

The Senior Software Engineer will lead software development for structural optimization, mentor junior engineers, and collaborate with structural experts, using Python and various libraries.

Lead architecture and development of a mission-critical, distributed call-handling platform. Drive microservices design, CI/CD, automated testing, cloud deployments, observability, messaging, and mentor engineering teams while supporting 24/7 operations.

Develop cloud-native production systems that process large data volumes. Engage in backend development with Rust and frontend with Angular. Collaborate on product development.

The role involves designing DSP software, implementing solutions for low-power devices, and collaborating with teams in consumer healthcare technology.

As a Senior Software Engineer, you'll design and build scalable market data systems, improve API architecture, and enhance overall system performance, contributing to Alpaca's infrastructure for trading financial assets.

Build and maintain core post-trade clearing systems and securities-finance infrastructure. Own projects end-to-end, design reliable distributed services and RESTful APIs, integrate new clearing partners, participate in on-call rotation, and improve systems to enable new product offerings.

Own the architecture and roadmap for a high-reliability, multi-channel alerting service. Design routing, escalation, Temporal workflows, per-tenant configuration, channel integrations, delivery guarantees, and long-running state. Drive cross-team alignment and mentor engineers to ensure reliable, composable notification delivery.

Design and implement scalable backend services for on-prem and SaaS identity recovery (Active Directory, Entra ID, Okta). Influence architecture, integrate with platform products, adopt cloud/containerization and AI capabilities, triage customer issues, and mentor engineers.

Lead design and implementation of identity-focused threat detection for hybrid environments. Build scalable on-prem backend services, integrate ITDR products, apply AI/ML for anomaly detection, collaborate with product and platform teams, mentor engineers, and drive architecture and security-first solutions.

Design and develop backend systems for expense management, work in a cross-functional team, optimize application performance, and potentially adopt AI features.

Build and own end-to-end features across Sona’s platform using AI-assisted development. Direct and correct agent-produced code, work cross-functionally, engage customers in discovery and workshops, and contribute across scheduling, payroll, HR, and mobile domains.

Lead the API development team to design and implement software solutions, delivering scalable APIs while championing best practices and mentoring team members.

Senior Software Engineer will build and own backend-focused fullstack features across AI Retrieval, Infrastructure, or Product teams. Responsibilities include improving search/retrieval quality and latency, building scalable backend systems, contributing to embeddings/ML-powered search, collaborating cross-functionally, and shipping production-ready code in a continuous deployment environment.

Design, build, and operate scalable backend and platform services across cloud environments. Own service lifecycle from design through deployment, observability, troubleshooting, and production support. Drive decisions for data flow, asynchronous workflows, resiliency, and performance. Improve CI/CD, automation, testing, and engineering workflows while collaborating on architecture, ADRs/RFCs, and cross-team technical standards.