react English-speaking jobs in Espinho

HSS & Signalling Engineer will design, test, and implement new mobile telecom solutions. Responsibilities include network design, capacity management, and integration strategy definition. The role requires experience with GSM, UMTS, LTE, IMS, 3GPP, GSMA, and ITU standards. Must have knowledge of signalling network functions, subscriber data management, and mobile services charging.

Supports Relationship Managers in fulfilling member requests, focusing on booking execution and documentation. Assists with researching luxury objects and experiences. Handles administrative tasks such as comparing offers, arranging bookings, and updating client information.

Senior Backend Developer for an 8-12 month contract. Design, develop, and maintain backend services using Go. Contribute to service architecture and mentor other engineers. Fluent English required.

As a Digital Sales Manager, you will qualify leads, initiate contact with prospects, nurture relationships, and transfer qualified leads to the sales team. You will analyze lead quality, collaborate with marketing, and contribute to the digital sales strategy.

Support the Iberian Finance team with in-house accounting (SAP), financial reporting, tax compliance, and investment structures and transactions. Manage the full accounting cycle of SPVs, ensure compliance with Portuguese tax regulations, and monitor cash flow.

Manages a portfolio of US-based solar assets, ensuring contractual compliance, revenue management, and regulatory adherence. Supports asset renewals, tendering, and technical issue resolution. Collaborates with technical and finance teams on budgets, ESG compliance, and onboarding new sites. Requires strong communication, time management, and IT skills, including proficiency in Excel.

MailerLite seeks a Front-End Developer to contribute to the development of a new Drag & Drop builder. Responsibilities include creating the builder from the ground up, optimizing its performance, building reusable components, and implementing tests. The ideal candidate has 3+ years of experience with web technologies, including a reactive framework (Vue.js preferred), Tailwind CSS or similar frameworks, and REST-based APIs.

Leads roadside assistance operations in France, Italy, Benelux, and the UK. Oversees emergency service coordination, collaborates with internal and external partners, and handles complex case escalations.

Full Stack Engineer Annotator assesses frontend and backend engineering datasets to ensure AI models accurately interpret full-stack workflows. Annotates application datasets, evaluates integration logic, and reviews UI interactions. Requires a Bachelor's degree and 3-5 years of experience as a Full Stack Developer with proficiency in modern frontend and backend technologies. Must hold a relevant certification.

Freelance photographer needed for remote role. Review and evaluate photographs, providing feedback on composition, lighting, and overall quality. Minimum 3+ years professional photography experience required.

Senior Software Engineer specializing in Meta's advertising ecosystem, particularly Meta Signals Gateway (MSGW) and Conversion API (CAPI). Designs, implements, and operates high-availability microservices for the Meta SGW product offering. Integrates with Meta's API surfaces and collaborates with product and engineering teams to ensure data compliance and transparency.

Senior Sales Operations Consultant supports the International VS&A Sales Leadership team, optimizing sales efficiency and effectiveness. Responsibilities include collaborating on sales strategy, providing data analytics and insights, managing Salesforce environments, and leading forecasting and budgeting processes.

ServiceNow Consultant to analyze, design, implement, and maintain ServiceNow solutions. Responsibilities include gathering requirements, configuring solutions, coordinating implementations, and providing technical support. Requires solid ServiceNow experience, development best practices knowledge, and ServiceNow certifications.

Support the development of AI-powered conversational technology by evaluating, categorizing, and improving Norwegian language data.

FotoEventi Group seeks motivated individuals to work as Tourist Photographers in Spain and Italy. Responsibilities include promoting photographic services to hotel guests, conducting photo sessions, and handling sales. Requirements include photographic knowledge, sales drive, teamwork skills, and fluency in English.

Provides IT and meeting-room support, delivers VIP/executive assistance, and coordinates with suppliers and technical teams.

Negotiates and executes clinical trial agreements and budgets for a range of studies. Reviews, adapts, and manages contracts, collaborating with legal, finance, and project teams.

Manages four teams (35 people) responsible for closing controls and certifications for global markets, financing, and international scopes. Oversees process optimization, data integrity, and team development. Reports to Head of Finance in Portugal and CC&C Leader in Paris.

Leads a team of security architects to design and evolve security roadmaps for cloud platforms, compute/storage/database/connectivity, and digital workplace ecosystems. Provides security assurance for major initiatives and manages relationships with technology vendors. Requires 10+ years in Information Security, including 5+ years in infrastructure or cloud security architecture roles.

Senior Investments Performance Analyst will produce investment monitoring reports for pension funds, including asset allocation, performance, risk analysis, and strategy updates. Responsibilities include collaborating with consultants, validating customer information, and mentoring junior colleagues. Requires fluency in English, a degree in a relevant field, and 3+ years of experience in the investments industry. Strong analytical and Microsoft Office skills are essential.