react English-speaking jobs in Espinho

EMC Test Engineer will perform in-house engineering tests, write test protocols and reports, and support formal testing at TÜV Munich. Requires experience with EMC testing according to ISO60601-1-2 and ISO60601-1-12, fluency in English, and the ability to interpret requirements and assess safety measures.

Junior QA Analyst to perform manual tests on web and internal applications. Create, update, and maintain test cases and plans. Collaborate with IT and business teams to ensure application quality.

Leads a team of CRC Coffee Specialists, ensuring high-quality customer service for the Nespresso Brand. Manages team performance, provides training and development, and collaborates with support functions to improve customer experience. Requires one to two years of experience as a team leader in a customer-facing role, proficiency in German and Italian, and strong communication and conflict management skills.

Senior Software Engineer will design, build, and maintain production-grade Scala-based backend services. Responsibilities include owning the full software development lifecycle, collaborating with SREs, and contributing to observability within the platform.

Senior/Staff Full Stack Engineer to design and deliver scalable SaaS solutions using TypeScript (frontend) and Python (backend). Requires 10+ years of experience, expertise in system architecture, and experience with Kubernetes and AWS.

Consulting Sales Engineer will provide technical consulting and promote Daikin products to design offices, architects, developers, and end customers. Responsibilities include project consultancy, equipment selection support, and participation in training. Requires a degree in Mechanical Engineering or air conditioning specialization and 5+ years of HVAC experience. Must have strong technical and commercial aptitude, knowledge of relevant legislation and certifications, and proficiency in English (B1 minimum) and MS Office.

Vendor Management Officer needed for NATO Secret clearance position. Experience in vendor management, procurement, or contract administration required. Duties include onboarding/offboarding contractors, drafting Statements of Work, and recommending procurement strategies.

Linguist to support AI training initiatives and content creation. Responsibilities include creating linguistic content, resolving ambiguity and bias issues, performing QA on model outputs, annotating datasets, and conducting linguistic research. Requires deep understanding of linguistic theory and language structure. Experience with computational linguistics, corpus analysis, or LLM training is a plus.

Java Developer needed for an international project focused on Conversational Agent AI Platform. Responsibilities include contributing to platform activities, collaborating with team members, and working on onboarding new use cases. Requires 5+ years of development experience, strong Python skills, and expertise in APIs, data pipelines, and cloud technologies.

Lead the evolution of Xata's visual brand system, designing marketing assets across various channels and collaborating with marketing and product teams. Create swag and physical assets, and help communicate complex technical concepts visually.

As a Translator / Linguist, you will translate and edit video game text, ensuring accuracy, consistency, and cultural appropriateness for Italian markets. You will collaborate with a team to deliver high-quality, immersive experiences.

Provides support to the Global Broker team in the annual Broker Fee reconciliation process and periodic reporting. Assists with collecting and consolidating global contract spend data, ensuring accuracy, and preparing analysis for the Broker team and Global Buyers. Supports the maintenance of contract terms and calculation rules in IT systems.

Freelance Agent Evaluation Engineer needed to review, refine, and test AI systems. Requires 5+ years of software development experience, Python expertise, and experience with Docker, CI/CD, and React.

Provide customer support via phone, email, and chat in Danish and English. Resolve product and service issues, handle account requests, and document interactions. Collaborate with internal teams to ensure efficient problem resolution.

Financial Systems Analyst needed with a degree in IT or Finance and experience in business/IT relationships. Must have knowledge of finance & budget, financial performance analysis, and Business Intelligence tools (SAP Business Objects preferred). Proficiency in Microsoft Excel, PowerPoint, and Power BI is required. Fluency in English is essential.

Ryanair Group is hosting a Cabin Crew Assessment Day in Porto on February 27, 2026. Successful applicants will participate in a 6-week training course to become qualified cabin crew members. The role requires the ability to swim 25 meters, be between 5'2" and 6'2" tall, and have the unrestricted right to live and work in the EU. Applicants must be comfortable working a shift roster, enjoy dealing with the public, and have excellent customer service skills. Fluency in English is required.

Junior Credit Operations Analyst to monitor financing operations, liaise with Front Office, review agreements, and ensure compliance.

Research Scholarship in Biotechnology at Universidade Católica Portuguesa. Successful candidates will conduct research on nutraceutical ingredients derived from yeast hydrolysates. The scholarship is for 27 months and requires a PhD in Biotechnology or a related field.

Legacy People seeks a 2D/3D Artist to design characters for various projects. Responsibilities include developing creative concepts, creating 2D artwork and 3D models, and collaborating with teams. Applicants must have proven experience in 2D and 3D character design and proficiency in industry-standard software. A strong portfolio is required.

Tech Mahindra seeks a Recruiter to manage the full recruitment process, including sourcing, interviewing, and onboarding candidates. The role involves posting job advertisements, coordinating with stakeholders, and maintaining social media channels.