react English-speaking jobs in Espinho

Define and execute the communication, engagement, and conversion strategy for the Hub, shaping cross-brand journeys and designing notifications, in-product messaging, and conversion experiments.

Drive business expansion and own the full sales cycle in a fast-growing IT recruitment company. Progress through a 13-level career path based on performance.

Spektrum seeks a Voice / VTC Technician to provide continuous AV&VTC services in support of NATO personnel in Brussels, Belgium. Responsibilities include installation, configuration, monitoring, and daily operation of COTS technologies and software. The technician will ensure audio-visual and video teleconferencing systems are functional and troubleshoot issues. Minimum 3-5 years of experience managing AV/VTC room systems, including VTC codecs, cameras, projectors, monitors, control processors, microphone systems, and video matrixes is required. Proficiency in troubleshooting hardware, software, and network issues is essential. Strong communication and interpersonal skills are needed for user support and training. A Bachelor's degree in a related field is preferred, or equivalent practical experience and industry certifications will be considered. Level 3 English language skills according to NATO STANAG 6001 are required. A valid National or NATO Secret personal security clearance is necessary.

Efacec seeks a skilled Engenheiro Eletrotécnico to design, develop, and implement electrical systems for diverse projects. The role involves collaborating with teams, ensuring compliance with regulations, and supporting project development from concept to maintenance.

Support cyber initiatives, track project plans, and improve knowledge management. Coordinate with team members, maintain documentation, and ensure compliance with governance and audit requirements.

Backend Python Engineer needed to develop, maintain, and optimize core backend services for cross-platform translation capabilities. Responsibilities include building APIs, working with relational and non-relational databases, and collaborating with cross-functional teams. Must have 2+ years of backend engineering experience and strong English communication skills.

AI Engineer needed to design and build AI/LLM-assisted product features integrating LLM APIs into Ruby on Rails systems. Requires practical experience with AI/LLM technologies and strong Ruby on Rails skills.

Full-stack engineer to develop and maintain a modern platform using Java, Spring Boot, React, and TypeScript. Responsibilities include designing APIs, building web applications, and collaborating with cross-functional teams. Requires a degree in Computer Science or equivalent experience and proficiency in full-stack development technologies.

Drive innovation in model serving and inference architectures for advanced AI systems. Optimize model deployment and inference strategies for responsive, efficient, and scalable performance.

Trainee to join Customer Service & Support team, focusing on account opening processes. Reviews and validates account opening documentation, ensuring accuracy and compliance. Communicates with clients and collaborates with the team to deliver a smooth onboarding experience.

Project Director to lead and coordinate a new hyperscale data center project in Portugal. Responsible for timely, cost-effective, and safe project delivery on behalf of the client. Coordinate works of the general contractor and external supply chain. Ensure quality assurance, HSEQ standards, and robust project documentation.

Lead Salesforce Developer will drive the technical execution of Salesforce solutions, from requirements analysis to deployment and support. Responsibilities include leading the development team, ensuring adherence to best practices, overseeing the DevOps process, and partnering with the Salesforce Architect. Requires proven experience as a Salesforce Developer or Lead Developer with deep expertise in Salesforce Lightning Platform, Apex, Lightning Web Components, and Salesforce development frameworks.

Tech writer to create and maintain documentation for IT products, business processes, and APIs. Requires 2+ years of experience, "Docs as Code" knowledge, version control (git), and experience with Hugo, Markdown, and product knowledge bases. Must have strong communication and collaboration skills.

Review reported content (images, videos, text, and ads) in Latvian and English to ensure compliance with platform policies and legal standards. Evaluate advertisements for misleading, inappropriate, or non-compliant content. Investigate reported violations using internal tools.

InnoWave seeks a dynamic Technical Architect to define AI integration standards across SDLC, Data, and Ops. Responsibilities include establishing guardrails for LLMs, creating technical blueprints, and ensuring interoperability between diverse platforms.

Administrative Assistant/Front Office to support real estate operations. Responsibilities include managing reception, scheduling, administrative tasks, property documentation, and communication with internal teams. Requires previous experience in reception or customer-facing roles, administrative experience, and proficiency in Microsoft Office. Fluency in Portuguese and English is essential.

Managing Director to lead growth, P&L, and innovation in Portugal. Full P&L ownership, business development, and team leadership across production, creative, and digital expertise. Proven experience leading teams, managing P&L, and selling high-value services. Strong commercial mindset with a focus on results and value creation. Native Portuguese, professional English.

Senior Product Manager to drive roadmap and execution for Intermedia's telecom solutions. Responsibilities include translating customer and partner requirements into product initiatives, collaborating with engineering, operations, and sales teams, and measuring and improving KPIs. Requires 5+ years of Product Management experience with a focus on business voice/UCaaS and telecom services.

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

The Sales Administration & Logistics Specialist processes orders, ensures timely delivery, and manages customer invoicing. This role involves tracking payments, resolving disputes, and providing customer support. The ideal candidate has 2 years of experience in logistics, a relevant degree, and fluency in English and Portuguese.