student English-speaking jobs in Castro Daire

Customer Support Representative needed for a full-time, on-site position in Lisbon. Manage customer calls, investigate and resolve issues, and escalate complex cases. Native Polish and fluent English required. Previous contact center experience preferred.

Product Manager to research market trends, support product development, manage supplier relationships, and ensure compliance with industry standards.

Senior Business/Functional Analyst with 6+ years of experience, ideally in banking. Experience with Summit SDK or similar booking banking software systems (e.g., Murex, Calypso, Sophis, Orchestrade, Forex) is required. Strong SQL skills and in-depth understanding of Front Office and Middle Office workflows are necessary. Fluent in English (C1 level), French (B2 level) is a plus.

Data Analyst needed to examine and interpret complex data sets, derive insights, and support business decision-making. Responsibilities include designing data solutions, developing data models, and collaborating with teams to communicate findings. Proficiency in SQL, data visualization tools, and statistical analysis techniques required.

The Associate Medical Director provides medical, clinical, and scientific expertise to IQVIA divisions. Serves as a Global Medical Advisor on assigned projects, offering guidance on medical and scientific aspects. Requires a medical degree, medical license, and 9+ years of experience in clinical medicine and clinical trials.

Drive innovation in multi-modal reinforcement learning to advance intelligent systems. Develop and scale reinforcement learning techniques within complex multi-modal architectures. Conduct research on reinforcement learning algorithms for multimodal models, including diffusion-based approaches for image and autoregressive models for multimodal understanding. Design and build reinforcement learning infrastructure that supports scalable, distributed training across multimodal systems. Develop and refine reward modeling strategies that improve training stability and mitigate reward hacking. Create and curate multimodal simulation environments and datasets to support robust training, evaluation, and benchmarking of reinforcement learning systems. Publish research findings in top-tier conferences.

QA Functional Tester and Senior QA Tester needed for Energy sector project. Experience with API and SQL testing, requirements analysis, and test execution required. Fluent Portuguese and English.

Lead the development and building of software applications addressing complex business and technology problems. Guide a diverse engineering team through the entire engineering life cycle, designing, developing, optimizing, and deploying software engineering solutions. Translate business problems into technical roadmaps and shape product direction, operating model implications, and change management approaches.

Full-stack engineer to design, develop, and maintain Riskified's Control center app. Responsibilities include architecture development, production system management, and collaboration with other teams. Requires 3+ years of full-stack coding experience, Node.js proficiency, and strong CI/CD knowledge.

Night Auditor needed for a new 16-villa resort in Comporta, opening in Q2 2026. Responsibilities include end-of-day financial procedures, guest support during the night shift, and maintaining brand standards. Previous hospitality experience, strong analytical skills, and fluency in English and Portuguese are required.

Support the commissioning and qualification of equipment, utilities, and systems. Conduct impact and risk assessments, draft user requirements specifications, and contribute to design reviews.

UNU-EGOV seeks two Junior Research Consultants to support digital transformation and public sector innovation projects. Responsibilities include research, analysis, report writing, project support, and stakeholder engagement. Candidates should have a master's degree in a relevant field and strong English skills.

Systems Engineer needed to analyze customer needs, develop system requirements, and troubleshoot hardware, software, and system problems. Requires a degree in Electronic, Communications, or Telecommunications Engineering and experience in design documentation. Senior roles require network certifications and experience with virtual and hyperconverged infrastructure.

Data Administrator needed to support vehicle pick-up process for cross-border buyers and ensure data accuracy on online marketplace. Fluent English required, other European languages a plus.

The HR Manager directs and oversees daily Human Resource Office activities including recruitment, compensation, training, labor relations, and performance management. The role focuses on delivering HR services to meet employee and business needs while ensuring compliance with laws and regulations.

Provide customer service and sales support in German and English across various channels. Handle inquiries, process orders, and promote products while ensuring customer satisfaction.

Kotlin Developer with minimum 4 years of experience needed for a hybrid project in Lisbon. Must have good knowledge of Kotlin and advanced English.

Leads strategic growth initiatives through the partner channel, managing local channel and partner strategy and business mix. Drives industry and technology communities across the partner network and collaborates with Sales and Operations teams. Implements and executes the Global Partner Management framework and Partner Programs. Develops and expands the partner network in line with the Digital Industries go-to-market strategy.

HR Data & Operations Specialist supporting employees and managers across countries. Provides HR support, manages HR systems, and assists with onboarding, mobility, and day-to-day processes. Fluency in French is required.

Brix IT seeks Backend Developers (Lead & Junior) with experience in Spring Boot/Quarkus, Kafka, DevOps, and API management platforms. Strong communication, problem-solving, and learning abilities are essential.