freelance English-speaking jobs in Valongo

Manage a team, drive sales, and ensure smooth store operations. Fluency in English and Portuguese required. Previous retail sales experience necessary.

Experienced Mathematics Teacher needed for Middle and Upper School (ages 9-18). Deliver engaging lessons following the Cambridge curriculum, assess student progress, and differentiate instruction.

German Quality Specialist monitors CSR performance, provides feedback on service quality, and ensures adherence to procedures. Evaluates AI-driven customer interactions and identifies improvement opportunities. Requires native German and fluent English, strong communication and problem-solving skills, and experience in quality assurance.

The role contributes directly to brand visibility, guest engagement and the promotion of the hotel's lifestyle, F&B outlets and experiences across digital platforms. What You Will Do?

Accounts Payable Junior Accountant will analyze invoices, assess purchase orders, support travel programs, and handle vendor inquiries. Must have a Finance/Accounting degree or experience in administrative accounting tasks. Fluency in English is required, other European languages are a plus.

Product Manager to own and scale core AI features at Fireflies.ai. Responsibilities include improving AI features, building AI apps, driving prompt engineering, and defining product metrics. Requires 2-4 years of experience in a high-growth startup, experience with AI first products, and strong familiarity with AI tools.

Senior Backend Engineer to design, build, and maintain robust, scalable backend systems. Responsibilities include architecting and implementing Emma's backend platform, developing REST APIs, and working with cloud-native architectures on AWS. Experience with Go (Golang), cloud platforms, and databases is required.

At OTIS, a leading multinational company in the elevator sector, we are recruiting a Talent Acquisition Specialist for our team in Mem Martins, Portugal. Role Overview: We are looking for a talented individual to lead recruiting processes in Portugal and Spain, to build what's next for Otis. This position reports to the Sr. Manager, Talent Acquisition Iberia, Africa & Middle East.

Cybersecurity Consultant will deliver and shape advisory services for tech startups and scaleups. Responsibilities include assessing client security posture, designing security programs, guiding compliance initiatives, and providing ongoing security and compliance advice.

Lead and coach a team of operators and specialists overseeing production, quality, and technical performance in a fast-growing semiconductor environment.

Candidates based in Lisbon can also be considered. Are you passionate about clinical research and improving patients' lives? Do you thrive in a fast‐paced environment where quality, agility and collaboration matter? If you want to be part of a team delivering clinical trials that make a real difference, this could be your next role.

029/2026COMPETITION FOR THE AWARD OF A GRANT, IN ACCORDANCE WITH THE PROVISIONS OF THE RESEARCH GRANT REGULATIONS OF UALG AND FCTTitle: 1 Research GrantA competition is open for the award of one Research Grant (graduated) within the scope of the R&D project 101080665 – ASP-belong – "Augmented Social Play (ASP): smartphone-enabled group psychotherapeutic interventions that boost adolescent ment

Dellent seeks a Tech Recruiter to source, screen, and interview candidates for IT roles. Responsibilities include writing job descriptions, building a candidate CRM, and staying current on technological trends.

Software Engineer to build and maintain integrations between a public safety platform and third-party systems using TypeScript and Node.js. Develop integration workflows, enhance product capabilities, and design secure, scalable cloud-based solutions.

The Global Ethics Manager supports the Global Ethics Program by implementing ethics and compliance controls, developing guidance and training, and maintaining ethics systems. Responsibilities include managing the AlertLine system, conducting investigations, overseeing the Conflict of Interest disclosure process, and contributing to the design and delivery of ethics training.

Provide Italian customer service and sales support, resolving issues and recommending products. Must be fluent in Italian and English (B2 minimum), possess strong communication and sales skills, and be available for rotating shifts.

Senior Product Manager to own the Supply Chain & Logistics platform for a leading luxury fashion marketplace. Drive long-term product strategy for WMS, IMS, and financial logistics, focusing on automation, optimization, and connecting physical flows to financial movements.

Clinical Scientist Associate Director supports late-phase clinical development by contributing to protocol development, study start-up, data review and monitoring, and analysis activities.

Quadrante is looking to strengthen its Transport Infrastructures Business Unit by recruiting a Senior Civil Engineer for the Special Structures division, based at our Oporto office. With both national and international projects of varying scales and typologies, Quadrante offers a unique professional experience in the Portuguese engineering market.

QA Automation professional to develop and maintain automated test scripts, execute and analyze results, and collaborate with dev and product teams.