Top Software Engineer Jobs in Poland

Design, integrate, and test Ericsson cloud-native 5G Core solutions across Kubernetes, Docker, OpenShift, and other platforms. Develop microservice-based, cloud-agnostic solutions, use open-source cloud applications, perform feature and system testing, and collaborate within Agile, international teams.

Provides senior Avaloq development services for banking and wealth management transformation initiatives. Designs, configures, enhances, integrates, and migrates Avaloq solutions; analyzes requirements; troubleshoots complex issues; and collaborates with clients, architects, and technical specialists. The role also contributes to testing, code quality, solution design, maintainable development practices, and knowledge sharing under an independent B2B contract.

Investigate complex software issues, perform root-cause analysis, and implement improvements that enhance product quality, reliability, maintainability, stability, and observability. Develop, debug, test, and verify software using C++17 or later, automated testing, and approved AI-assisted engineering tools. Collaborate across technical teams, contribute to architecture discussions, automate troubleshooting activities, strengthen verification strategies, and share engineering knowledge.

Design, build, and operate Dropbox’s large-scale distributed metadata databases. Responsibilities include developing strongly consistent, low-latency systems; optimizing replication, consensus, caching, availability, and durability; participating in on-call operations; collaborating on technical roadmaps; conducting design reviews and postmortems; and writing performance-critical Go and Rust code.

Build and maintain full-stack platform products spanning reporting, enterprise administration, developer APIs, agent systems, billing, licensing, and usage metering. Architect, test, deploy, and support production systems while collaborating with engineering, infrastructure, product, design, and support teams. Contribute to scalable media-processing and streaming applications, operational health, architecture, roadmap decisions, and customer-driven feature development.

Develop and maintain full-stack software for Boeing AvionX, including Python backend services and JavaScript or TypeScript React applications. Own features from design through delivery, build accessible interfaces, integrate RESTful APIs, write automated tests, participate in code reviews, and use Git, Docker, and CI/CD pipelines. Collaborate with product, UX, QA, and DevOps teams while contributing to sprint planning and continuous improvement.

Design, implement, test, and maintain full-stack applications using Python, JavaScript or TypeScript, React, RESTful APIs, and databases. Build accessible user interfaces, backend services, automated tests, and CI/CD workflows in containerized environments. Conduct code reviews, mentor engineers, collaborate with product, UX, and QA teams, and contribute to planning and process improvement for avionics software products.

Develop and maintain responsive, accessible frontend applications using JavaScript, TypeScript, React, and other modern frameworks. Own features from design through testing and delivery, write unit and integration tests, conduct code reviews, mentor engineers, collaborate with product and UX teams, manage Git workflows and CI/CD pipelines, and work with Docker-based environments. Contribute to sprint planning, technical design discussions, performance optimization, and continuous process improvement.

Develop and maintain React component libraries and micro-frontend App Shell features. Contribute to .NET-to-React modernization, build Java backend services, and work with GCP, CI/CD pipelines, Terraform, and cloud deployments. Write tested, maintainable code, troubleshoot front-end and API issues, participate in code reviews, and collaborate with senior engineers across the software development lifecycle.

Develop, integrate, test, and maintain Java software for Boeing avionics systems. Responsibilities include detailed software design, agile development, web services and containerization, project execution planning, process improvement, and collaboration with international teams, customers, and stakeholders while supporting product quality, safety, and reliability.

The C++/Linux Software Engineer will build software for Boeing systems, perform engineering activities, and collaborate with teams to meet project goals and improve processes.

Provides technical leadership for Python-based AI backend platforms supporting LLM integrations, generative AI pipelines, and agent orchestration. Architects scalable AWS systems using FastAPI, Lambda, and EKS; establishes observability and engineering standards; drives performance, security, and reliability improvements; mentors engineers; and influences organization-wide technical strategy, platform capabilities, and best practices.

Develops software verification strategies and automated test suites for avionics-related web applications. Responsibilities include UI, end-to-end, unit, integration, performance, reliability, and regression testing; defect investigation; code reviews; CI/CD and Git workflows; Docker-based development; and collaboration with product, UX, QA, and DevOps teams. The role also mentors engineers and contributes to sprint planning and process improvement.

Develop and maintain C/C++ software for Ericsson LTE/5G projects across the full product lifecycle. Responsibilities include designing features, refactoring code, implementing product improvements, improving automated testing and CI/CD workflows, documenting changes, and collaborating in an international Agile Scrum environment using JIRA.

Develop and maintain C/C++ software for LTE and 5G projects across the full product lifecycle. Responsibilities include implementing features, refactoring code, improving automated testing and CI/CD workflows, documenting software changes, and collaborating in an Agile Scrum environment using JIRA. The role also involves verification, maintenance, and product improvements within Ericsson’s telecommunications R&D organization.

Investigate and resolve software issues found during testing and customer use, support root-cause analysis, verify fixes, implement small C++ improvements, and develop unit and automated tests. The role involves troubleshooting complex telecom software, participating in code reviews, collaborating across technical teams, and using AI-assisted tools while building product and architecture expertise.

The Senior Software Engineer will design and implement scalable data streaming solutions, develop DevOps tools, and improve system usability and observability.

As a Senior Software Engineer, you will integrate DPU hardware, execute validation plans, handle automation scripts, and collaborate with teams on networking features and testing.

Build, deploy, and maintain reliable backend systems supporting social network integrations at scale. Responsibilities include writing tested code, collaborating with product and engineering teams, reviewing code and designs, monitoring production services, troubleshooting outages, improving performance, and managing technical debt. The role also involves working with APIs, databases, messaging queues, Agile processes, architecture discussions, and cross-functional feature delivery.

Develop and maintain a C# and IL-based application-protection product, collaborating with senior engineers on implementation and technical problem-solving. Learn obfuscation and runtime protection concepts, break down tasks, review AI-generated code using Claude Code, and verify implementation quality. Contribute to related C++, frontend, and CI/CD work as needed while communicating effectively in English.

Develop Java software within a Scrum team across planning, development, testing, and maintenance. The intern will build customer-facing features for Motorola Solutions’ mission-critical communication system, collaborate with experienced professionals, and participate in the full software development lifecycle. The role requires Java and concurrency knowledge, analytical thinking, English communication, and willingness to learn. Work is hybrid from the Krakow office, with a minimum 32-hour weekly commitment and a 15-month employment contract.

Develop, test, integrate, enhance, and maintain C/C++ software supporting telecommunications radio infrastructure. Collaborate with global teams and take end-to-end responsibility for feature delivery. The role requires Linux skills, English communication, at least 24 hours per week, and office attendance in Krakow two days weekly under a 15-month employment contract.

Develop and maintain scalable React and TypeScript frontend applications in a Turbo monorepo, build Fastify backend utilities, and implement micro-frontend architecture with Module Federation. Create reusable UI components, type-safe APIs, and comprehensive automated tests. Maintain code quality with Biome and monitor performance and observability using OpenTelemetry and Prometheus. The role supports a banking-sector client in a flexible hybrid or remote Agile environment.

Implement and test C# and Java services for the Intelligent Middleware product, deployed on Windows and Linux. Support environment setup, maintenance, and deployment orchestration in the product lab while learning from public safety technology experts.

Build and maintain end-to-end scalable frontend and backend applications, design APIs (REST/GraphQL), implement data pipelines, optimize databases, collaborate on UI/UX, write tests, automate CI/CD, monitor production, and participate in agile processes.