Top Software Engineer Jobs in Warsaw

Design, build, and operate PKI and certificate-issuance services using C#/.NET and ASP.NET Core. Implement versioned REST APIs, automate certificate and key lifecycles, optimize performance and concurrency, and run cloud-native deployments on AWS/AliCloud with EKS/Kubernetes. Own CI/CD (GitLab/GitHub Actions), observability, secure-by-default practices, documentation, and runbooks while contributing to code quality and peer reviews.

Develop innovative solutions for Mapbox's Navigation SDK, focusing on architecture, quality, and mentoring. Collaborate to deliver high-quality APIs and features, ensuring seamless integration across SDKs.

Build and optimize the core edge platform for hybrid edge-cloud video security devices. Develop streaming, recording, and low-latency AI processing; ensure high-performance, concurrency-safe systems; profile and fix CPU/memory bottlenecks; integrate secure communications with cloud; collaborate on deploying on-device models; participate in code reviews, debugging, and performance tuning across the stack.

As a Senior Software Engineer, you will develop secure, scalable medical imaging platforms, architect distributed systems, and work with AI diagnostic tools.

Design, build, and maintain backend services powering crypto and fiat payments. Collaborate with product and stakeholders, deliver reliable APIs, implement asynchronous microservices, support production systems, participate in on-call rota, and contribute to engineering standards and product launches.

The role involves debugging and developing C# and APL code, collaborating with consultants, resolving performance issues, and improving software solutions for clients.

Develop, test, and maintain Mapbox tools for managing customer feedback and data corrections, collaborating with editing teams and ensuring optimal service performance.

Own and productionize core localization systems (state estimation, mapping, calibration). Build monitoring, diagnostics, validation, and deployment tooling. Integrate sensors, tune performance, run regression testing, and iterate using data from real autonomous airport operations to enable driverless capability.

Design, implement, and scale robust Rust services and libraries for trading, payments, and crypto. Build low-latency distributed systems using RPC, Kafka, and event-driven patterns. Write testable, high-performance asynchronous network code, debug across OS/network/application stacks, own systems end-to-end, and mentor other engineers while collaborating with product teams.

Design, build, and lead development of AppGlass features; develop AI-first tooling and automation; implement enterprise integrations and deployments across Kubernetes and cloud; and improve reliability, testing, performance, and security for production use.

Develop and maintain foundational Kotlin core libraries used by many developers; contribute to language features, tools, and specifications; participate on a design committee; become domain expert in CS topics; write design documents; focus on API design and performance engineering.

Lead design and implementation of scalable microservices for an e-commerce platform, provide technical leadership across domains, mentor teams, participate in architecture and code reviews, and collaborate with stakeholders to align technical solutions with business needs.

Develop and maintain a high-performance, cross-platform C++17 navigation engine for mobile and automotive embedded systems. Improve map-matching, dead-reckoning, route-following, road-object matching, predictive caching, and integrate Valhalla for offline routing. Optimize for CPU and memory constraints and leverage real-world vehicle data and AI-assisted engineering workflows.

Lead and deliver enterprise-grade Apple platform software: design features, break down customer problems, implement end-to-end solutions, mentor teammates, apply engineering best practices, ensure quality and reliability, and collaborate across product, cloud, and support in an agile environment.

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).

The Senior Software Engineer will lead the development of a Python-based platform, enhancing a mature system for open-source collaboration, mentoring teams, and driving innovation.

As a Go Software Engineer for Identity Management, you will design, implement, and enhance identity management solutions, collaborate with a distributed team, and contribute to the development of authentication and authorization systems.

As a QA Automation Engineer, you'll develop test plans, perform testing, lead automation initiatives, and ensure high standards for Kraken's trading platforms.

As a Senior Software Engineer, you will lead your team in shipping features, making technical decisions, and mentoring others to scale products effectively.

As a Staff Software Engineer at Redpanda, you will design and develop the Agentic Data Plane, lead technical projects, and enhance operational excellence in cloud services, focusing on reliability and scalability.

The Senior Software Verification Engineer will validate software products through automated testing, integration validation, and defect analysis in high-speed networking and virtualization domains.

The Lead Software Engineer will design, develop and implement software solutions while mentoring junior engineers and ensuring high software quality in a collaborative environment.

Build and maintain Snowflake's NodeJS Driver and Universal Driver core: implement connection/auth flows, SQL execution, result handling, type conversions, security (TLS, tokens, MFA/SSO), performance tuning, testing, and cross-language integration while partnering with product, docs, release, and security teams.

Build and ship intuitive frontend features for Aurora's Physical Design CAD and 3D canvas. Collaborate with product, design, and backend engineers to design, implement, test, and support production features. Improve frontend architecture, tooling, and reliability, participate in on-call rotation, and mentor peers.

Lead QA modernization and own product quality by rewriting regression and performance testing frameworks (primarily in Python), driving test automation, planning quality for new features with R&D and product teams, investigating critical issues, and collaborating across engineering teams.