6678 English-speaking jobs in Masovian Voivodeship

Senior Data Scientist to lead improvements in personalization models, focusing on customer retention and menu ranking. Responsibilities include model optimization, backtesting, experimentation, and collaboration with cross-functional teams. Requires strong Python skills, Databricks, PySpark, Pandas, NumPy, Scikit-learn, and experience with Generative AI tools like Claude.

Senior Software Engineer to focus on platform modernization, decoupling initiatives, and engineering excellence within core English Language Learning systems. Responsibilities include driving modernization of existing services, supporting decoupling of monolithic components, and designing, implementing, and evolving backend services. Requires proven experience as a Senior Software Engineer on backend or platform systems, strong expertise in Java and modern backend development practices, and experience with Spring Framework or similar.

SAP FI/CO Consultant supporting, enhancing, and optimizing SAP modules across ECC6 and S/4HANA environments. Minimum 2 years of hands-on experience with SAP FI/CO required. Strong functional knowledge of GL, AP, AR, Asset Accounting, and Controlling. Experience with SAP S/4HANA or ECC6 and ability to read and understand ABAP code.

Lead the L3 Delivery team, ensuring stability, scalability, and continuous evolution of digital solutions. Manage complex L3 incidents, drive technical excellence across the application lifecycle, and enable cross-functional teams to deliver robust solutions.

SAP C4C Consultant will design, configure, and develop solutions within the SAP Sales and Service Cloud platform. Responsibilities include leading requirements gathering, configuring business processes, developing custom extensions, and managing integrations.

Senior Integration Engineer to design, build, and maintain integrations between SAP SuccessFactors and downstream systems. Responsibilities include ensuring data flows are reliable, compliant, and well-documented. Requires 5+ years of hands-on experience with SAP SuccessFactors, particularly Employee Central and satellite HR tools. Proven experience building cloud integrations with SAP Integration Suite (CPI) or comparable middleware is necessary.

Data Engineer needed for a long-term project supporting a U.S.-based education services provider. Responsibilities include designing, developing, and maintaining scalable data pipelines using Snowflake, dbt, Coalesce.io, Airbyte, SQL Server/SSIS, and Azure Data Factory. Must have experience with Medallion Architecture, dimensional data modeling, and ETL/ELT concepts.

Senior Software Engineer will develop backend solutions in Python and hardware device drivers for encryption systems. Responsibilities include creating Windows applications, enhancing frontend components, automating CI/CD workflows, and supporting Windows batch scripts. Troubleshooting Python, JavaScript, and C++ codebases, identifying system risks, and collaborating with product development teams are also key duties.

Senior Data Engineer to design, implement, and maintain scalable data platforms on Google Cloud Platform. Develop and maintain data pipelines, implement data ingestion, and build and optimize transformation logic. Collaborate on schema evolution and deployments using CI/CD.

Middleware Specialist needed for Delivery & Support Team. Focus on stability, resilience, security, and performance of enterprise middleware platforms. Experience in banking or mission-critical environments required.

Lead Go Developer for a scalable distributed platform focused on high performance, reliability, and efficient concurrency. Responsibilities include designing and evolving systems, collaborating with Product Managers, and leading code reviews. Must have 5+ years of Go experience, deep understanding of concurrency patterns, and experience with CI/CD tools.

Drive delivery excellence across a product suite within EPC DT by ensuring predictable outcomes, transparency, and strong stakeholder alignment. Lead delivery, manage risks and impediments, and optimize delivery flow. Provide transparent reporting and insights to stakeholders and leadership.

Design, build, and deploy AI agents that automate and improve IT and business workflows while minimizing hallucinations and ensuring reliable outputs. Implement model validation, monitoring, and fail-safe mechanisms to detect and reduce incorrect or risky agent behavior. Architect secure data handling pipelines to protect sensitive information used by models and agents. Develop and maintain MCP servers and developer tooling that surface actionable insights and make it easy for teams to query, debug, and act on model outputs.

Core Network Engineer specializing in signalling domains (4G and 5G) required. Responsibilities include vendor management, technical project leadership, and supporting NatCos in testing and platform automation. Requires experience as a Telco System Engineer/Designer, Technical Product Manager, and fluency in English.

Lead the development and deployment of RGM analytics capabilities across the commercial organization. Master advanced analytics solutions, leverage multiple data sources to deliver insights on price, promo, and assortment optimization. Manage and deploy the promo optimization program in France, UK, Italy, and Germany.

Senior Data Platform Engineer needed for a strategic project building and maintaining a modern cloud-based data platform. Design, develop, and manage data warehouse solutions, ETL/ELT pipelines, and hybrid cloud environments. Experience with Azure, Snowflake, Terraform, Python, SQL, Apache Airflow, and CI/CD is required.

Senior Test Automation Engineer to design, build, and improve scalable automated testing solutions for modern applications and services. Will develop automated tests, support API and integration testing, and collaborate with teams to define testing strategies. Requires 5+ years of software testing experience with a focus on automation engineering, strong C#/.NET skills, and experience with test automation frameworks.

One of our clients is looking for an Infrastructure Program Manager who will lead the migration of private data centre workloads into Microsoft Azure, driving projects end-to-end and ensuring effective coordination among various technical teams.

about-project : The Digital Transformation Unit of Bayer Consumer Health operates a global data & analytics cloud platform, which is the backbone of all data & (advanced) analytics products for Bayer Consumer Health. As Senior Cloud Engineer you are responsible to enable and manage Azure Cloud Services on a globally & scalable distributed data, analytics & AI platform.

Senior React Developer needed for a finance/stock exchange web portal project. Responsibilities include designing technical solutions, maintaining code, and investigating production incidents. Requires 5+ years of ReactJS experience, knowledge of PWA principles, RESTful APIs, Karma/Jasmine, and Docker/Kubernetes.