react English-speaking jobs in Espinho

Mixed-Signal Verification Engineer executes CoSim verification tasks for system-level validation across analog and digital domains. Builds and runs simulations, debugs mixed-signal failures, and collaborates with designers to confirm expected behaviors. Maintains test content and documentation to enhance verification quality and speed.

Brand Manager to own revenue and growth across direct-to-consumer brands. Manage Meta and Google campaigns, Shopify optimization, and merchandising strategy. Drive conversion, align paid and organic channels, and ensure brand consistency.

Senior Regulatory Affairs Associate to serve as the Portugal Local Regulatory Responsible (LRR). Develop and execute regulatory strategies, ensure compliance with local regulations, and act as primary interface with INFARMED. Minimum 5 years' experience in Portuguese Regulatory Affairs with strong understanding of Portuguese and EU requirements.

Service Delivery Lead to join the Operations team, partnering across SAS, the business, and stakeholders to ensure consistent, high-quality service delivery. Responsible for coordinating internal teams, managing service level agreements (SLAs), and acting as the primary point of contact for service-related inquiries and issues.

Experienced English Copy Editor needed to ensure clarity, consistency, and grammatical precision in AI training materials. Must have 5+ years of experience, native or near-native English proficiency, and strong familiarity with style guides.

Lead QA professional to manage and improve testing across multiple products. Responsibilities include planning and executing tests, growing test automation, optimizing processes, and tracking performance metrics.

Team Lead will scale profitable campaigns across multiple geos and verticals, own significant budgets, and lead a team of mediabuyers. Responsibilities include campaign performance optimization, developing media buying strategies, and fostering a high-performance team culture. Requires 4-6+ years in media buying, proven track record managing high-spend campaigns, and experience leading or mentoring a team.

Senior Machine Learning Engineer will design, build, and deploy production ML systems. Responsibilities include translating models into scalable systems, defining best practices for productionization, and leading cross-functional collaboration. Requires 5+ years of experience in ML Engineering, MLOps, or related roles, strong Python skills, and experience with cloud platforms and containerization.

Manage day-to-day service operations for mobile and web digital products, ensuring SLAs and KPIs are met. Coordinate with vendors, infrastructure, and support teams to resolve incidents and problems. Drive root cause analysis and implement preventive measures.

Experienced Media Buyer to plan, strategize, and execute media buys for app and web campaigns across various platforms.

Senior Data Platform Compliance Engineer with 5+ years of experience in cloud (AWS EKS and/or Azure AKS) and Kubernetes. Requires expertise in Terraform, CI/CD, testing frameworks, scripting (Python or Go), cybersecurity, monitoring, Active Directory, and data governance/compliance. Excellent English communication skills are essential.

Lead and grow a product team to shape the future of Bloom, a women's health solution that blends AI and clinical expertise. Own the product vision, strategy, and roadmap for the B2C clinical platform, ensuring alignment with business goals, member needs, and clinical best practices.

Customer Service Advisor provides support to customers via email, phone, and chat, resolving queries and requests. Must have excellent English and Italian communication skills and experience in customer service.

Digital Marketing Optimization Specialist (Dutch) will implement optimization solutions, analyze data, and create reports to support strategies across Search, Search Network, Mobile, and Video.

Level 2 Technician responsible for aircraft and engine component maintenance, repair, inspection, troubleshooting, and certification. Performs non-destructive testing (PT & MT), etching, equipment maintenance, and documentation. Instruct and supervise staff, support process improvement, and collaborate on technical challenges.

Backend QAE with 5+ years of Java programming experience, including Spring framework, AWS, Apache Kafka, and BrowserStack. Fluent in English and Portuguese. Remote work in Portugal.

KCS IT seeks a .NET Backend Developer with 4-5+ years of experience. The ideal candidate will possess strong knowledge of .NET / .NET Core / ASP.NET Core, C#, relational databases, REST APIs, and version control (Git). Fluency in English is required. Experience with CI/CD tools, Docker, Kubernetes, automated testing, and microservices architecture is preferred.

Regional Visual Merchandiser will execute and maintain visual merchandising standards across HUGO BOSS stores in Portugal. Responsibilities include implementing window displays, training store teams, and providing feedback to the VM team. Requires 5+ years of experience as a Regional Visual Merchandiser in premium retail.

Solar Engineer needed to design, analyze, and ensure quality of commercial and industrial solar PV projects (30 kW - 4 MW). Responsibilities include creating 3D PVSol and K2 reports, pricing files, and electrical schemas. Analyze consumption patterns, optimize self-consumption calculations, and review project documentation for compliance.

Information Architect to lead the transformation of Five9's technical content ecosystem. This role designs and implements information architecture, defines content models, and establishes structured templates. Collaborates with cross-functional teams to improve content quality and scalability.