react English-speaking jobs in Espinho

Senior Specialist Analytics and Data Engineer, Customer Success will support the Customer Success Function with analytical and technical expertise. Responsibilities include automating workflows, analyzing data, and developing strategies for Mastercard products. The role requires experience with cloud technologies, big data tools, and programming languages like Python and SQL.

Manage and drive commercial activity across a portfolio of agents, ensuring sales targets are met and compliance is maintained. Audit, train, and support agent teams to deliver a customer-focused commercial approach. Identify and implement projects to improve efficiency and performance. Participate in promotional campaigns and product launches.

Technical AI Architect to design robust, scalable, and secure AI solutions. Experience with enterprise-scale architectures (Azure, AWS), distributed systems, and modern engineering practices required. 5+ years in Technical Architecture roles with AI exposure. Strong programming skills (Python, Java, SQL, JavaScript) and fluency in English.

Network Engineer needed to manage and operate data center network infrastructures, ensuring high availability and service continuity. Experience in datacenter networks, network security, and transport networks required.

Define purchasing strategy for indirect commodities (IT, telecoms, services, etc.), manage supplier relationships, and optimize purchasing performance. Manage purchasing teams, develop employee skills, and ensure alignment with company objectives.

Business Controller needed for new production plant in Viana, Portugal. Evaluates, updates, and manages cost management systems. Collaborates with Product Line Manager to achieve financial targets and participate in cost reduction programs. Ensures accurate and timely financial data for management decision-making. Provides business trend analysis and supports inventory valuation. Acts as a liaison between finance, logistics, commercial, and IT departments. Requires a degree in Accounting, Economics, Management, or related field, knowledge of accounting principles, costing, and budgeting, and experience in a similar role for over two years. Fluency in English and Portuguese is required.

Functional Lead for Drives will develop and implement VFD strategy, lead standardization and architecture development, and provide technical oversight for VFD and drive system designs. Requires a Bachelor's, Master's, or PhD in Electrical Engineering, Electronics, or a related field and 5+ years of experience in power electronics and drive control systems.

Full Stack Engineer will design and build AI agent tools, integrate with existing services and APIs, and define tool schemas and contracts. Responsibilities include building agentic features and workflows, owning services end-to-end, and contributing to backend services and data layers.

Staff Backend Engineer specializing in AI-native development. Designs and maintains agent-ready systems, including context pipelines and task specifications. Strong experience in Golang, Java/Kotlin, and scalable distributed systems. Drives technical direction and mentors engineers.

Perform hands-on maintenance, repair, and inspection of engine components. Responsibilities include assembly, disassembly, inspection, repair, and testing of engine parts. Must possess strong technical skills, attention to detail, and proficiency with measuring equipment.

Qualitest Group seeks a Language Specialist with native Arabic fluency to execute project tasks, review content, and ensure quality standards. The role involves collaborating with engineers, analyzing data, and providing expertise on software needs.

ECAD Consultant needed for a Lisbon-based client. Requires a degree in Electrical Engineering, Electronics, or equivalent, experience with Zuken CR8000 or similar tools, and knowledge of R&D development processes. Experience with PLM, Teamcenter, and EDA Client is desirable. Strong programming skills in languages like C#, C++, PowerShell, Visual Basic, AutoIT, and CMD are also required. Excellent English skills are essential, German is a plus.

Experienced Engineering Manager to lead a team of engineers in developing and delivering Nitro's Sign product, API, and integrations. Strong technical background, proven leadership, and experience with Agile and Scrum frameworks required.

Swedish/Norwegian-Speaking Customer Support & Reactivation Specialist provides customer support, manages accounts, and engages with former customers to encourage service reactivation.

Full-Stack Developer needed for design and development of backend services and APIs using .NET (C#). Collaborate on frontend solutions when required and contribute to technical decisions. Strong experience in .NET / C# development and RESTful APIs is essential.

Leads and scales the silicon logical design organization, translating specifications into RTL implementations and overseeing end-to-end design execution.

Lead the adoption of Agile practices, especially in teams with limited Scrum experience. Facilitate Agile ceremonies, coach and mentor teams, and support backlog management and prioritization.

Operations Manager needed for MyWP Rollout program. Develop and deliver reporting deliverables, provide technical guidance, and lead task planning. Translate stakeholder requirements into reports, extract data, and ensure compliance with data quality standards. Requires knowledge of data manipulation, Excel, PowerPoint, and Worldpanel systems.

Leads regulatory compliance strategy, safeguards information security, and acts as a bridge between legal and technical integrity.

Senior HR Specialist to provide expert-level support for employee lifecycle processes across Europe. Manage complex HR transactions, mentor junior team members, and serve as a key escalation point for employee inquiries. Drive process improvements, ensure compliance with regional labor laws, and collaborate with HR Business Partners, Payroll, and Centers of Excellence.