hr English-speaking jobs in Legionowo

Fullstack Developer needed for post-purchase experience team. Develop and maintain frontend applications using React and backend services in Golang. Work with AWS, Terraform, and ArgoCD in a Kubernetes environment. 3+ years experience in Golang and React required.

Senior Fullstack Developer needed for freelance work. Expertise in Ruby on Rails and TypeScript required. Build dashboards, UIs, and documentation platforms. Emphasize developer experience and thrive in ambiguous environments. Deliver high-quality, well-tested code and meet deadlines. Monitor and own production issues.

Senior Tax Analyst – Pillar II will support the implementation and ongoing compliance of OECD/GloBE Pillar II rules across Aon’s global structure. Responsibilities include preparing Pillar II calculations, gathering and analyzing financial and tax data, and collaborating with regional tax and finance teams.

Fullstack Developer to implement new functionalities using .NET Core, Vue.js, and Microsoft SQL Server. Develop, maintain existing systems, and participate in code reviews.

Senior Scientist to lead a newly funded CAR-T project integrating AI/ML modeling with experimental work. Responsibilities include scientific direction, experimental design, data interpretation, and team coordination across multiple disciplines. Requires PhD in a relevant field with 2+ years postdoc/industry experience in gene therapy, CAR-T biology, and cell engineering.

Commercial Performance Specialist drives the execution of commercial insights into measurable outcomes, monitors performance across products and segments, and supports portfolio and pricing simplification initiatives. Requires strong Excel and dashboarding skills, organizational discipline, and fluent English communication.

Leads o9 Data Governance activities within Enterprise Operational Planning, defining and enforcing data policies and standards. Manages contractor teams, delivers projects using Agile, SAFe, and Waterfall methodologies, and ensures data integrity and traceability within the o9 application. Requires 15+ years of experience in enterprise technology, data engineering, or program delivery, with 5+ years in data governance, SAP integration, or enterprise planning platforms.

Senior Software Engineer will design, implement, and maintain backend services and APIs using Python or Kotlin within Affirm's microservice and event-driven architecture. Collaborate with stakeholders across North America and Europe to build scalable fraud tooling and infrastructure.

Lead the transformation of internal infrastructure to a public cloud platform using AI tools. Develop AI agents for automated support, implement intelligent observability, and ensure API-driven hardware management.

Junior DevOps Engineer (Azure) will automate application code building, troubleshoot applications and infrastructure, and implement infrastructure as code using Terraform, ARM Templates, and Bicep. Responsibilities include supporting cloud resources, automating deployments, developing monitors and alerts, and working in an Agile environment. Must have 1+ years of experience as a DevOps Engineer, commercial experience designing, deploying, and managing cloud environments in Azure, and experience with Agile and DevOps principles.

Lead Software Engineer (Java/Kotlin) What's the role? At HERE Technologies, we maintain a massive database of HD Map data that serves as the "brain" for self-driving vehicles. But before a car hits the real road, it must drive millions of virtual kilometers. To enable this, we built SceneXtract a tool that allows simulation engineers to find specific road scenarios using natural language.

Senior Android Engineer to design, build, and scale Android experiences for a fintech app. 5+ years of Android development experience with Kotlin and modern frameworks required. Collaborate with cross-functional teams to deliver high-quality features.

Senior Full Stack Engineer to design, build, and maintain a key internal operational platform using React/Next.js, Node.js, and NestJS. Collaborate with stakeholders to gather requirements and translate them into scalable solutions.

Senior IAM Automation Test Engineer will design and execute automated tests for IAM workflows, APIs, and cloud-native applications. Responsibilities include managing Jenkins pipelines, leading and mentoring engineers, and collaborating with stakeholders. Requires 5+ years of IAM test automation experience, strong coding skills (Java, Python, Typescript), and knowledge of IAM concepts (RBAC, ABAC).

technologies-expected : Android Kotlin Git about-project : As a Mobile Software Engineer, you will be a key contributor to the development of new features and improvements for our mobile applications. You will work closely with product owners, designers, and other engineers to translate user needs into robust, high-performance mobile experiences.

System Engineer to define, develop, and integrate train system architectures. Collaborate with multidisciplinary teams, manage supplier relationships, and ensure system performance, safety, and compliance.

The Accounts Receivable Specialist supports the business with financial insights related to receivables, manages customer accounts, and resolves billing issues. The role requires strong accounting knowledge, advanced Excel skills, and fluency in English.

Experienced Senior UX/UI Designer to shape and deliver exceptional user experiences across the SciLeads platform. Translate product strategy and data-driven requirements into intuitive, high-impact designs. Lead end-to-end design from problem identification to delivery, ensuring quality and usability. Collaborate with Product, Engineering, and Data teams to deliver seamless user experiences.

Domain Architect – Pharma R&D will champion enterprise architecture practices within the Pharma R&D environment. This senior-level position leads the Pharma R&D architecture network, driving architecture governance and strategy formulation. The role translates business goals into adaptable, future-ready roadmaps and partners with leadership to align business priorities with multi-year roadmaps.

Principal Software Engineer to design and architect complex, scalable mobile application systems. Drive mobile operational maturity and partner with Product Manager(s) and Engineering Manager(s) to establish technical delivery milestones. Requires 8+ years of experience in commercial software development with significant experience delivering large-scale native mobile applications. Deep understanding of mobile software architecture, design principles, and engineering best practices across iOS and Android ecosystems. Experience with mobile platforms iOS and Android, native languages including Swift, Kotlin, Objective-C, and Java, and modern mobile architectural patterns. Experience with shared code and cross-platform approaches such as Kotlin Multiplatform. Strong architectural understanding of mobile communication patterns such as REST and GraphQL and the broader mobile ecosystem including local data persistence, networking layers, authentication, offline and synchronisation strategies, and push notification systems.