specialist English-speaking jobs in Mafra

Senior Machine Learning Engineer will design, implement, and maintain reusable platform components for data and AI use cases. Responsibilities include building ML lifecycle tooling, GenAI-specific components, and supporting internal teams. Requires 5+ years of AI experience, cloud platform experience, infrastructure-as-code experience, and Python proficiency. Experience with ML workflows, Kubernetes, and LLMs is essential.

Lead a large-scale engineering organization overseeing platforms, services, and foundations for data, analytics, and AI. Shape organizational design, drive delivery excellence, and build a high-performance culture.

Market Intelligence Analyst to strengthen strategic intelligence across Europe's CEP and freight sectors. This role involves market sizing, competitor analysis, forecasting, and translating complex data into executive insights.

Manage service delivery and finance operations for NATO, ensuring accurate quarterly invoicing and reporting. Responsibilities include managing purchase requisitions, ServiceNow tasks, and supporting commercial activities like cost analysis and pricing. Requires experience in IT or business operations.

Dynamic Head of Science & Biology Teacher role at King’s College School. Lead Biology, Chemistry, and Physics departments, mentor staff, and teach Years 7-13 using the Cambridge curriculum. Requires a BSc in Biology and teaching qualification.

Experienced Consultant in Brand, Content & Communication Strategy. Develop strategic content, support brand and communication strategies, and create engaging narratives for clients across industries. Requires strong writing skills in Portuguese and English.

Home Care Physician in Lisbon providing medical consultations to patients at their accommodation. Requires a recognized medical degree, active license, and fluency in English and Portuguese. Must have 2+ years of clinical experience.

Field Service Specialist provides onsite and remote support for customers. Responsibilities include hardware/network troubleshooting, ticket management, and monitoring systems. Requires 3-5 years of support experience and technical skills in OS, networking, and hardware.

Front Desk Coordinator needed for a health unit in Albufeira. Requires advanced English and flexibility for day and night shifts. Initial contract is for six months and is renewable.

Drive brand processes and projects from discovery to delivery as a Graphic Designer. Lead the evolution of design systems and shape high-quality visual assets across channels. Requires 6+ years of experience and strong Adobe Creative Cloud skills.

Lead a department, driving excellent customer experiences and operational excellence. Responsibilities include team motivation, sales data analysis, and ensuring brand standards. Requires retail experience, strong communication, and Portuguese/English knowledge.

Data Scientist will analyze US healthcare claims and insurance data using SQL and Python to assess prescription patterns, treatment journeys, and market trends. Responsibilities include identifying market gaps, supporting AI use cases, and collaborating with cross-functional teams to provide strategic insights. Requires a Master's degree in a relevant field with 2-5 years of experience or a PhD with 1 year of experience.

Lead design and development of next-generation UAVs, providing senior expertise in aircraft design and flight dynamics. Drive full lifecycle development, from concept to certification readiness. Requires 5+ years in aircraft design and flight dynamics.

Native Portuguese (Portugal) speakers with strong English comprehension are sought as Freelance Linguistic Testers. Review AI-generated content for cultural accuracy and test software for UI/functional bugs. Must own a Mac with an M-series chip.

Lead negotiation of clinical trial agreements and budgets with investigator sites. This role requires strong contract management experience, fluency in English and Portuguese, and knowledge of clinical trial agreements.

Infrastructure Technician ensures production equipment and facilities reliability through maintenance, asset management, and digital tools like SAP PM and BIM. Requires vocational training in Electrical, Electronics, Mechatronics, or related field.

Lead multiple engineering teams as Director of Software Engineering, owning delivery, technical health, and people development. Drive AI-native ways of working while solving ambiguous, systemic problems. Requires 5+ years in engineering management.

Senior backend engineer to maintain and evolve a production platform supporting AI-powered language services. Responsibilities include building and improving backend services, async workflows, API integrations, and state management. Experience with .NET, PostgreSQL, Redis, RabbitMQ, Docker, Kubernetes, and AWS is required.

Lead end-to-end Finance transformation and regulatory projects, implementing accounting layer solutions across global platforms. Responsibilities include requirements gathering, solution design, testing, and UAT validation.

Data Annotator needed for a short-video platform, requiring native or fluent Russian and B2 English. Responsibilities include reviewing and labeling multimedia content to train AI models. Must have 6+ months experience in data annotation or content moderation.