react English-speaking jobs in Espinho

HR Operations Specialist to support and contribute to the continuous improvement of HR Operations within a growing international organization. This role will ensure operational excellence, payroll accuracy, employee life-cycle administration and reliable HR processes.

Backend Java Developer to build cloud-native microservices on a distributed system. Experience with Spring, AWS, Kafka, and event-driven architectures required.

Manage end-to-end recruitment processes, partner with hiring managers, and support onboarding for new hires. Contribute to employer branding and talent attraction initiatives. Collaborate on internal People initiatives and cross-functional projects.

Senior Accounting Compliance & Reporting professional providing a broad array of accounting, tax compliance, and reporting services to multiple clients. Responsibilities include preparing financial statements, developing accounting policies, and supporting the implementation of regulatory requirements. Requires a minimum of 4 years of experience in accounting, tax compliance, and reporting roles, familiarity with financial services, and fluency in Portuguese and English.

Manage key e-commerce accounts, develop commercial strategies, and drive profitability for PIERRE FABRE DERMO COSMETIQUE PORTUGAL LDA.

Supports day-to-day office operations with a focus on General Services and EHS. Ensures compliance with safety legislation and internal policies. Manages facilities operations, travel, and administrative tasks.

Plenit seeks a Country Manager for Iberia to own go-to-market strategy, lead sales, build a team, and drive revenue growth. The ideal candidate has 10+ years of B2B technology experience, a proven track record in channel sales, and deep knowledge of the Iberian IT ecosystem. Fluent Spanish and professional English are required.

Penetration Tester Coordination role at Aubay Portugal. Requires 4-5 years of experience in vulnerability management and security tools, cybersecurity or IT security background, strong Linux knowledge, and proficiency in networks and communication protocols.

Develop, implement, and maintain machine learning models and algorithms. Integrate ML solutions into production systems. Collaborate with cross-functional teams to bring prototypes to life and support their transition into production. Monitor and optimize the performance of deployed AI models.

Experienced Hotel General Manager to lead the opening and ongoing operations of a new lifestyle hotel in Costa da Caparica, Portugal. Responsibilities include pre-opening preparation, team management, guest experience, budget oversight, and operational efficiency.

Fullstack Developer (React + .NET) to develop and maintain responsive front-end interfaces and back-end services. Collaborate with teams, ensure code quality, and participate in agile ceremonies. Requires 5-8 years of experience in fullstack development, proficiency in React and .NET, and experience working on international projects in English.

Provide B2B customer service in German and English, managing inquiries, orders, and service delivery. Collaborate with internal teams to resolve customer requests and streamline administrative tasks. May oversee team performance, analyze KPIs, and audit billing processes.

.NET Developer with 2+ years of experience in .NET framework, .NET Core, C#, ASP.NET, MVC, and SQL Server. Experience with Automated Test Cases (Cucumber, NUnit or JEST) and Web API REST is required.

Senior Frontend Engineer will architect and build a scalable micro-frontend architecture for Feedzai products. Collaborate with product engineering teams to integrate standalone modules into a unified application. Write documentation and tooling to support product teams integrating micro-frontends. Ensure platform standards and implement rigorous testing strategies.

Seeking Italian speakers with EU passports for summer 2026 opportunities in Greece, Portugal, and Bulgaria. Roles include Customer Support, Content Moderation, and Sales & Marketing. Accommodation and relocation support provided for selected projects.

Engineer, Validation will execute validation activities, calibrate instruments, analyze data, and prepare reports. Requires a science degree and 1+ year of QA experience. Fluency in English and computer skills are preferred. Knowledge of the injectables pharmaceutical industry, GMPs, and FDA regulations is beneficial.

Support R&D Operational Readiness projects by analyzing data, identifying trends, and preparing reports. Collaborate with project managers and subject matter experts to improve product launches.

The Sadewasser Research Group at INL seeks a Research Scientist to develop thin-film solid-state micro-batteries for on-chip integration. The role involves thin-film battery fabrication, deposition system operation, and electrochemical characterization.

Provide technical and service support to customers in German and English via phone, email, and chat. Troubleshoot issues and deliver a high-quality customer experience.

Java Developer to build and maintain applications for trade limit and exposure management. Experience with Java 8-21, Spring Boot, and microservices required.