14251 English-speaking jobs in Masovian Voivodeship

Creative Producer to lead strategy and execution of paid social campaigns across Meta, TikTok, and other platforms. Develop creative concepts, briefs, and assets, ensuring brand guidelines and quality standards are met. Analyze performance data to inform creative testing and optimization.

Senior AI Prototyping Engineer will develop AI-powered features, translate ideas into prototypes, and collaborate with product and R&D teams to bring AI concepts to production.

Systems Engineer to administer and develop VMware virtualization environments, storage infrastructure, and Commvault platform. Requires 4-5 years of experience in infrastructure operations, strong VMware and Linux skills, automation experience (Ansible, Bash/Python), and experience with backup solutions.

Senior Site Feasibility Specialist will lead country-level Site Activation (SA) activities, ensuring timely start-up of investigative sites. Serves as a key liaison between sites, internal teams, and sponsors. Requires a Bachelor's degree in Life Sciences or related field and minimum 3 years of clinical research experience, including at least 1 year in a leadership capacity.

Senior Software Engineer to build API interfaces, backend infrastructure, and collaborate with teams on complex solutions. Responsibilities include building Ruby on Rails applications, server-side infrastructure, and contributing to all phases of the development lifecycle. Requires 5+ years of experience developing and maintaining Rails applications, a BS/MS in Computer Science or related field, and strong object-oriented programming knowledge.

Product Growth Manager needed to build, test, and scale growth funnels from traffic acquisition to subscription purchase and retention. Responsibilities include optimizing web funnels, launching paid acquisition campaigns, and designing onboarding flows. Requires 4+ years of experience in product growth, paid acquisition funnels, subscriptions, and payments. Strong analytical skills and experience with tools like Appsflyer, RevenueCat, and Amplitude are essential.

Head of Data Labelling will own the end-to-end data labelling function, ensuring high-quality datasets for AI models. Responsibilities include designing labelling guidelines, managing labelling tools, building a QA system, and leading a team. Must have 3+ years of experience with text-based datasets and leading a data labelling team.

Backend Tech Lead needed for a fast-growing AI-driven fitness product. Design, operate, and scale backend services integrating LLMs and ML systems. Strong Python, database, and cloud experience required. Hands-on delivery and architectural leadership expected.

Senior Data Engineer to design, build, and optimize batch data pipelines for a global management consultancy. Responsibilities include building ETL/ELT pipelines, ensuring data quality, and collaborating with product and data teams. Requires 5+ years of experience with SQL, Python, Spark, Airflow, and cloud platforms.

Administers Active Directory Domain Services (AD DS) in multi-domain/multi-forest environments. Designs, manages, and troubleshoots AD structure, GPOs, and security. Implements and maintains security benchmarks and integrates with Azure AD, SSO, and MFA solutions. Responds to security incidents, supports audits, and manages disaster recovery plans. Provides customer support and collaborates with global teams in a 24x7 on-call environment.

The European Border and Coast Guard Agency (Frontex) seeks Building and Facility Contracts Officers to manage the full lifecycle of building contracts for the Frontex Headquarters. Responsibilities include contract preparation, monitoring, stakeholder management, financial oversight, and ensuring compliance with agency policies and regulations.

Lead external manufacturing execution, production scheduling, and order management for third-party partners. Coordinate cross-functional operations and safeguard supply continuity. Manage external partnerships and promote compliance and continuous improvement.

Postdoctoral Researcher to investigate a gut microbiota-derived metabolite's therapeutic potential in mouse models of neurodegenerative diseases.

Manages the implementation of the DATA4 Health & Safety policy and program in Poland, ensuring compliance with regulations and continuous improvement. Leads H&S awareness actions, risk analyses, audits, and action plan development. Reports to the Group H&S Manager and collaborates with other H&S Managers across DATA4's operations. Requires 10+ years of experience managing H&S in a site with diverse technical activities, ideally in the data center industry. Possesses strong H&S knowledge, technical skills, and behavioral competencies.

Designs and documents test cases for software systems. Executes tests, reports results, and interprets findings. Collaborates with development and service desk teams. Requires mastery of SharePoint and testing tools, experience in testing complex systems, and at least one ISTQB Advanced certification or equivalent.

Systems Analyst to work with European Institutions in Warsaw. Analyzes business processes, designs software functionality, and models data structures. Collaborates with UX/UI specialists and presents designs to stakeholders. Requires expertise in SharePoint, business process analysis, and software development methodologies. Must have experience with UML modeling and system documentation.

Supports the P&C Innovation & Insights Analyst in designing, building, and delivering insights through data analysis and reporting. Maintains KPMG people data accuracy, timeliness, and completeness. Investigates and resolves complex data issues.

The Senior RTR Analyst ensures the accuracy and completeness of month-end closing and related General Accounting activities for the EMEA region. This role requires strict adherence to company policies and close collaboration with local affiliates. Responsibilities include preparing accounting entries, reviewing local entries, managing the monthly trial balance package, and supporting global/regional GA projects.

Senior IT Project Manager to lead complex, multi-team projects across the full lifecycle. Requires 5-7 years of experience, PRINCE2 Practitioner certification, ITIL knowledge, and strong stakeholder management skills. Fluent English required.

Technical Support Engineer will install, commission, repair, and maintain energy storage systems. Provides on-site technical support, addresses issues, and delivers customer training. Collaborates with technical teams and R&D to improve systems. Requires an Associate degree in a related field and 3+ years of experience in the power industry. Must have hands-on experience with equipment installation and maintenance, preferably with energy storage systems. Strong troubleshooting, communication, and customer service skills are essential. Relevant electrical or high voltage operation certifications are preferred. Willingness to travel frequently is required.