Top Software Engineer Jobs in Warsaw

Support and maintain QA environments, develop test plans for B2B IAM systems, execute tests, participate in Scrum processes, and ensure application stability.

Design, build, test, and deploy scalable payment services and web applications. Collaborate cross-functionally in agile teams to improve product quality, automate testing, resolve defects, and mentor peers while using technologies like Java, Spring, Angular, and cloud/container tooling.

Design, develop, and maintain enterprise test automation suites; analyze requirements; write and run automated tests for services and web applications; collaborate with product, development, and DevOps teams to improve product quality, CI/CD, and scalability.

Responsible for maintaining QA and test environments, executing functional testing, contributing to automation frameworks, and collaborating with cross-functional teams.

Support and maintain QA/test environments for B2B IAM systems, author and execute functional, regression, API, and performance tests, contribute to automation frameworks and CI/CD pipelines, perform root cause analysis, and collaborate with cross-functional teams to ensure stable, production-like releases.

Develop and optimize Soroban smart contracts and integrate anchor services on the Stellar network for cross-border payment solutions. Collaborate with cross-functional teams, test and debug smart contracts, document development processes, provide technical support, and stay current with blockchain and payments technology trends to ensure secure and efficient implementations.

Implement and optimize EVM-compatible features, reduce gas usage, develop and test smart contracts, collaborate on Ethereum infrastructure, and provide technical support.

Build and maintain high-security mobile wallet apps using React Native, Swift, or Kotlin. Implement biometric authentication and secure key storage, collaborate with cross-functional teams, debug performance issues, and propose UX and security improvements.

Design, build, and operate scalable test platforms for synthetic identities, test data seeding, mocking, deterministic validation, and load testing. Improve test signal quality, reliability, observability, and operational maturity. Lead medium-to-large projects end-to-end, write maintainable code, produce async technical artifacts, review designs, and mentor engineers to increase developer productivity and scale testing infrastructure.

Dragonfly is seeking Software Engineers for various portfolio companies, focusing on crypto technologies. Engineers of all experience levels are needed across multiple stacks.

Seeking software engineers with at least 2 years of production backend experience, interested in crypto and blockchain technologies, for roles with portfolio companies.

Build backend services and APIs to manage lifecycle of Qdrant Cloud clusters (provisioning, scaling, upgrades, backups, auth). Collaborate across teams, investigate production issues, and improve reliability, scalability, and usability of the cloud platform.

Design and improve customer experience solutions integrating Salesforce and AWS services, utilizing AI technologies for backend services and production deployment.

The Senior Software Engineer will design, develop, and maintain mobile network infrastructure applications, focusing on APIs and troubleshooting issues in mobile telecoms, particularly IoT.

As a Software Development Engineer in Test at Akamai, you will develop scalable software, create test strategies, and automate testing processes in collaboration with product engineers.

Design, build and maintain Java backend microservices in an agile team. Implement features from concept to production, perform code reviews, ensure quality and security, work with SQL/NoSQL databases, CI/CD (Jenkins), containerized cloud deployments (Kubernetes/Docker), and monitor systems with ELK and Grafana.

Develop and maintain enterprise-scale, highly available workflow and automation platforms. Build RESTful services, work with relational and non-relational databases, collaborate in agile pods, and help modernize systems using cloud, containerization, and distributed architectures while mentoring and partnering with global engineering and business teams.

Design, build, test and support batch and streaming data pipelines and curated datasets on a modern lakehouse/AI platform. Improve data modelling, quality, reconciliation, performance and operational reliability, partner with stakeholders, and provide technical leadership for delivery.

Develop and support Windows enterprise platforms and identity and access management solutions. Participate in full software lifecycle: design, build, test, release, production support, troubleshooting, and cross-team collaboration to deliver secure, highly available global platforms.

Design, develop, test, and deploy scalable cloud-native applications; migrate on-prem systems to cloud; build and maintain CI/CD and IaC pipelines; troubleshoot and optimize systems; collaborate with global cross-functional teams to translate requirements into secure, production-ready solutions.

Design, build, test and support batch and streaming data pipelines and curated datasets on a Lakehouse/AI data platform. Implement data modelling, schema evolution, partitioning and data quality controls. Work with stakeholders to deliver production-ready, well-tested, high-performance data products and support operational monitoring and reconciliation.

Build, test, and maintain cloud-native platform services enabling safe, secure deployment to public clouds. Design and deliver infrastructure-as-code solutions, collaborate with cross-functional teams, enforce cloud security and compliance, and manage software lifecycle from requirements through release.

Design, build and migrate workloads to public cloud; architect secure, highly available cloud-native services; collaborate with cross-functional teams to manage full software lifecycle, enforce governance, and promote cloud best practices across the firm.

Develop core backend components for a blockchain network, focusing on networking, reliability, scalability, and high-quality software practices.

As a Software Engineer, you'll develop software for Ceph and distributed storage, collaborating with a global team to enhance cloud solutions.