Top Software Engineer Jobs in Poland

Design, build, ship, and own high-scale, user-facing product features across frontend, backend, and data systems. Define problems, scope and prioritize work, collaborate with Product, monitor production usage, debug incidents, improve reliability, review code, and mentor engineers. The role requires strong backend expertise alongside React proficiency and ownership from product discovery through long-term maintenance.

Build and ship production AI agents that help mobile app developers manage subscriptions and paywalls. Own agent orchestration, tool execution, context management, evaluation, observability, permissions, and human-in-the-loop controls. Develop reliable, secure, user-facing backend systems, scope projects independently, monitor adoption, improve features after launch, participate in architecture and incident response, and mentor engineers.

Lead backend development for CRM segmentation and operations on the ABC Glofox platform. Design Golang services, optimize complex MySQL queries, manage large datasets, and guide technical direction for a team of 2–3 engineers. Collaborate with Product, Design, Development, and Testing teams to build XLerate, using Agile, Lean, DevOps, and CI/CD practices.

Provides principal-level technical direction across CRM engineering teams and shared platform capabilities. Responsibilities include architecting large-scale distributed and data-intensive systems, improving reliability, observability, performance, and operability, mentoring engineers, resolving critical cross-team incidents, leading migrations and integrations, designing webhook architectures, and establishing responsible AI engineering practices. The role also drives engineering standards, CI/CD, production readiness, and platform improvements across the CRM domain.

Design, build, deploy, monitor, and support scalable backend services, frontend applications, APIs, and integrations for a distributed Edge Experience platform. Work across the full software lifecycle, including infrastructure, testing, CI/CD, observability, and production operations. Drive technical decisions, improve reliability and engineering practices, collaborate with cross-functional teams, and mentor engineers through code reviews and knowledge sharing.

Develop and maintain Layer1 control software for physical network connectivity, instrument telemetry, and interface with hardware teams. Design, implement, test, and debug features in C/C++ and Python; collaborate with customers, hardware, and support teams; own projects from definition to deployment.

Staff Software Engineer responsible for quality and reliability strategy across backend APIs and native iOS and Android applications. The role includes designing testable architectures, quality gates, release pipelines, device and OS coverage, flakiness controls, cross-team incident resolution, technical leadership, mentoring, quality metrics, and AI governance. The engineer will influence multiple teams, contribute hands-on code and tooling, and promote shift-left quality ownership across the engineering organization.

The Software Engineer will develop backend systems using Rust, manage multimodal data, and improve data infrastructure with a focus on performance and design ownership.

Develop and maintain automated tests and testing infrastructure for Veeam products. Collaborate with development teams to design and implement test frameworks, analyze source code and test results, maintain defect databases, and support internal automated testing systems.

Canonical seeks open-source enthusiasts to optimize Ubuntu for new silicon technologies, collaborating with teams and customers to enhance software quality and performance across various platforms.

Design and develop services for automating work with a large server fleet while engaging in DevOps processes.

Design and develop services for monitoring servers, improve metrics pipelines, automate maintenance workflows, and investigate incidents to ensure infrastructure reliability.

The role involves developing backend services using Python and Django, ensuring high availability and performance, and leveraging computer vision technology for 3D experiences in home decor.

Lead design and development of Linux kernel functionality for BPF, networking, and security, integrating features into Cilium and Tetragon. Collaborate with engineering, product, customers, and the upstream Linux kernel community to shape technical direction, maintain code quality, and deliver scalable cloud-native solutions. The role may also involve presenting work at technical conferences and contributing to engineering best practices.

Lead backend engineering for Card Acquisition, define technical strategy, deliver quarterly goals, mentor engineers, collaborate with product/design/analytics, ensure operational excellence (monitoring, on-call, playbooks), improve code and design standards, and drive quality and availability for customer-facing systems.

Lead the technical direction of a software platform by architecting scalable Ruby and Ruby on Rails systems, guiding feature development, optimizing performance, resolving complex production issues, and setting engineering standards. Mentor developers, conduct code reviews, collaborate with cross-functional teams, influence technology strategy, and contribute hands-on coding while evaluating emerging technologies and improving development processes.

Lead backend engineering and AI-agent integration efforts: design agent-ready systems, context pipelines, CI/CD and test guardrails, migrate monoliths to microservices, set API and schema standards, mentor engineers, and drive AI-assisted development practices.

Design, build, and operate low-latency treasury and financing systems using C#/.NET and React. Partner with traders and ops to translate requirements, implement DevOps and CI/CD, write automated tests, support production incidents, and mentor a distributed team while introducing scalable architecture and new technologies.

Develop and maintain backend services and tools for global Product Catalog management, build solutions to improve catalog data quality, create tools for brands and distributors, and collaborate with product and data engineering teams to scale backend systems.

Migrate legacy Java applications to Spring Boot, remove EJB/JMS, standardize OpenAPI-driven APIs, integrate via Kafka, implement tests, define Kubernetes deployments, design CI/CD pipelines, keep dependencies updated with OpenRewrite/Renovate, and explore AI-assisted code review tools.

Develop and maintain Java/Spring Boot backend services for sales and commission processing. Implement business requirements, enhance components, write unit/integration tests (JUnit, Mockito), debug and optimize performance, and collaborate with the team to deliver scalable, reliable solutions.

Develop and maintain Java/Spring Boot backend microservices for application modernization and migration. Design REST APIs, refactor legacy code, write automated tests (JUnit/Mockito), and support CI/CD, Docker/Kubernetes, and software quality processes within Agile teams.

Support migration and modernization of database systems (Sybase to PostgreSQL), analyze applications and stored procedures, design and develop Java-based microservices, migrate business logic from DB layer to services, refactor monoliths, contribute to architecture and technical decisions, and explore AI opportunities.

Design and implement reliable, high-performance Rust services and libraries powering trading, payments, and crypto products. Build scalable distributed systems, network services, and asynchronous applications for revenue-critical, low-latency environments. Debug issues across the operating system, network, and application layers; collaborate with product teams; own systems end to end; and mentor engineers while contributing to technical culture.

Develop and maintain Holepunch's Node.js-based P2P stack, expand and manage a large npm ecosystem, write modular reusable modules, test and debug production systems, and work on networking/distributed systems optimizations in a fully remote team.