react English-speaking jobs in Espinho

Data Specialist dedicated to Customer Service for a telecommunications operator. Analyzes operational data to optimize performance and customer satisfaction. Develops SQL queries, Power BI dashboards, and Python automation scripts. Collaborates with IT, Marketing, and Customer Service teams. Requires 3-5 years of experience and proficiency in SQL, PostgreSQL, Power BI, and Python.

The Clinical Research Associate monitors clinical trials on-site and remotely, ensuring subject safety, data integrity, and protocol adherence. Responsibilities include reviewing CRFs, verifying informed consent, and reporting monitoring visit findings.

Management Controller to join Audit, Planning and Control Department. Responsibilities include preparing reports, supporting budget preparation, developing business plans, and analyzing management information. Requires a degree in a relevant field, 3-5 years of experience in accounting and controlling, SAP knowledge, and proficiency in IT tools.

Postdoctoral Fellowship in Condensed Matter Physics, Light-Matter Interaction, and Radiative Heat Transfer. The selected researcher will develop analytical and numerical models for near-field radiative heat transfer and thermophotovoltaic (TPV) systems.

Regional Medical Advisor role focused on combating, preventing, and eradicating HIV and AIDS.

We are seeking a detail-oriented Stock Controller and Delivery Driver to manage inventory, handle procurement, and transport prepared food between our central kitchen and satellite locations.

The University of Aveiro is seeking a First Stage Researcher (R1) for a Postdoctoral Fellowship in Condensed Matter Physics, Light-Matter Interaction, and Radiative Heat Transfer. Applicants must hold a PhD in Electrical Engineering, Physics, Applied Physics, Physical Engineering, or a related field. The selected researcher will develop analytical and numerical models for near-field radiative heat transfer and thermophotovoltaic (TPV) systems. The grant duration is 6 months, starting in July 2026, and may be renewed for additional periods.

Lead Fullstack .NET Developer & React to join an international project focused on custom software development and scalable enterprise solutions. Lead and mentor a team, define best practices, and design and develop scalable microservices-based solutions.

We are seeking a Project Manager with strong Content Management capabilities to support and coordinate the marketing function. This role is responsible for managing the marketing calendar, campaign planning, asset production timelines, and cross-department coordination. The ideal candidate combines operational rigor with editorial precision and has a strong understanding of trading platforms and digital products.

Broadvoice seeks a detail-oriented QA Analyst to develop test plans and cases based on software requirements. Collaborate with product and engineering teams to define acceptance criteria, identify design risks, and propose mitigation strategies. Participate in root cause analysis, bug prioritization, and QA activity planning. Contribute to continuous improvement of QA processes and create quality reports and test metrics.

Support the opening of a new Emma store in Almada, assisting with daily operations, sales targets, and customer experience. Manage administrative tasks, stock, and visual merchandising while ensuring a smooth and efficient store environment.

Technical Service Representative Date:May 22, 2026Location:Setbal, PTAbout the roleDelivers training to customers on the use and application of the company products, equipment and documentation both on-site at the customer's location and within the training center.

Full Stack Developer to build systems for revenue management. Responsibilities include designing, developing, and maintaining end-to-end distributed systems and front-end applications using React, TypeScript, and Java. Experience with cloud providers (AWS or similar), microservices architectures, and event-driven platforms is required.

Develop new products and improve existing processes in a formulation lab. Requires a Bachelor's or Master's degree in Chemical Engineering or equivalent, 2+ years of formulation experience, and knowledge of chemical analysis techniques.

KCS IT seeks a Mid-Senior Python Developer with a degree in a related field and 3+ years of experience. The ideal candidate will have strong Python skills, experience with web frameworks (Django, Flask, FastAPI), and front-end frameworks (React or Angular). Fluency in English and Portuguese is required.

The Management Accountant will prepare financial reports for holding companies and treasury entities, including balance sheet, income statement, and cash flow statement. The role will also prepare accounting entries, coordinate with other group companies, and support the monthly consolidation process.

Experienced EU Project Design and Project Management Trainer sought for Erasmus+ Staff Mobility programme in Lisbon. Deliver interactive training sessions and coordinate project activities.

QA Automation Engineer to develop, maintain, and debug automated UI and API tests in Java/Groovy for Salesforce UI and middleware integrations.

The Property Management Executive oversees a portfolio of high-end rental properties, ensuring operational excellence and owner satisfaction. This role involves property maintenance, inventory management, contractor oversight, and reporting.

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. Must have 5+ years of backend engineering experience in production systems, strong API and integration experience, and knowledge of async processing, message queues, and Redis, PostgreSQL.