hr English-speaking jobs in Legionowo

Senior Backend Engineer to design and build Java services for AI platform, including multi-agent conversational AI, predictive analytics, and member engagement.

Azure Engineer responsible for maintaining cloud infrastructure, designing and implementing CI/CD pipelines, managing M365 tenants, and automating infrastructure provisioning. Requires fluency in Azure environments, experience with IaC using Azure Bicep, and knowledge of Azure cloud services, networking, security, and scripting languages.

Support User Acceptance Testing (UAT) and data validation for a new regulatory reporting solution. Validate and analyze reporting data using SQL, compare legacy and new system data, and verify data accuracy for regulatory reports.

Provides production application support for the Institutional Fixed Income Electronic Trading Platform, ensuring high availability and resolving issues. Requires 7+ years of experience in a high-pressure environment, strong problem-solving skills, and expertise in OOPs languages, scripting, and databases.

Design, build, and operate reusable front-end building blocks for B2B and B2C customer solutions. Develop and operate plugins for the Backstage developer platform. Collaborate with other developers to build, maintain, and operate reusable API services.

Design, develop, and improve digital products and technology services for clients and employees using .NET Core, C#, and Azure services.

Fullstack Developer needed to build and maintain web applications using Node.js and React. Responsibilities include developing APIs, crafting user interfaces, and troubleshooting technical issues. Requires 3+ years of fullstack/frontend development experience, cloud infrastructure knowledge, and proficiency in SQL and NoSQL databases.

Senior Cloud Engineer needed for stable operation and security of Google Cloud Platform (GCP) and local infrastructure. Requires experience with Terraform, Ansible, scripting, Linux administration, and cloud networking.

Manual QA Engineer to join an international team working on an insurance platform. Requires 4 years of manual testing experience (frontend and backend), experience with JIRA, Confluence, Postman, and SQL, and fluency in English. General familiarity with Guidewire platforms is essential.

Design, build, and maintain a scalable data and AI platform that ingests, processes, enriches, and serves content. Responsibilities include data engineering, AI/LLM processing, data storage, retrieval, and API development. Strong Python, AWS, and data pipeline experience required.

Experienced Software Developer – Integrator needed to design, implement, and operate integration solutions across cloud and hybrid environments. Expertise in Boomi, Mendix, containerized workloads, and Kubernetes required.

Develop predictive models and analytical tools to influence global marketing strategies. Build models for consumer behavior, product performance, and marketing optimization. Deliver insights to marketing teams for targeting, personalization, and next-best-action recommendations.

Business Analyst needed for pharmaceutical industry projects. Requires Master's degree in IT, Business, or equivalent, 5+ years experience, and C1 English fluency. Expert knowledge of Business Analysis techniques, requirements elicitation, and documentation. Strong communication, analytical, and problem-solving skills. Experience with agile methodologies and Scrum framework preferred.

React Developer needed for developing and maintaining modern web applications. Will analyze business requirements, ensure code quality through testing and reviews, and support production environments. Requires 4+ years of React experience, TypeScript proficiency, and knowledge of state management solutions.

System Engineer for Radio Access Network (RAN) will perform systems studies, specify system features, develop simulations, and contribute to 5G product development and innovation. Requires a Master's or PhD in a relevant field, experience with 5G NR, and strong communication skills.

Develop Python libraries, data pipelines, and analytical tools for a leading financial technology firm specializing in trading infrastructure. Analyze trading behavior, optimize execution strategies, and support high-performance live trading environments.

System Administrator (Azure) to support a hybrid Azure and Windows infrastructure. Responsibilities include on-call support, Azure administration, Windows Server management, log analysis, and backup/restore operations. Requires 4+ years of experience as a System Administrator/Azure Administrator with strong Microsoft Azure and Windows Server skills.

Leads the Production Support Service team in FX Options, driving compliance for Risk & Controls and coordinating with broader Markets IT. Manages audit and compliance topics, defines best practices for production management, and oversees team tooling applications. Supports and deploys systems using best practices across FXO teams and works closely with business stakeholders globally.

Architect and lead the infrastructure strategy for a next-generation Production ML platform on Google Cloud. Design, deploy, and maintain elastic scaling cloud infrastructure and containerization tools for high-performance ML workloads. Build automated pipelines for training, testing, and deploying machine learning models.

Sabre is looking for a Principal Product Owner in the Sabre Payments product team. The team is at the forefront of Sabre’s technical innovation, focusing on seamless payment experiences and integration of cutting-edge fintech and AI capabilities into our core product ecosystem.