freelance English-speaking jobs in Valongo

As an Account Manager in the Growth team, you will ensure partner engagement and retention. You will develop and execute plans to grow the partner portfolio through promotions, marketing activations, and selling positioning assets. You will also evaluate marketing activations performance, identify new assets to sell, and maintain good relationships with partners.

Lead and coordinate daily team operations, ensuring efficient workflows and performance. Enforce company standards and guidelines. Drive performance and talent management, promoting a safe work environment and continuous improvement initiatives.

Full Professor position in Fine Arts at the Faculty of Fine Arts of the University of Porto. Requires a PhD in Fine Arts or related areas, at least ten scientific publications, and relevant artistic production.

INESC-ID is offering a six-month research grant for a student enrolled in a BSc program in Electrical and Computer Engineering, Electronics Engineering, or a related field. The grant supports engineering and experimental development activities within the POEMS project, focusing on the design, implementation, and validation of electronic systems for ASIC and embedded systems testing.

Design high-converting landing pages and A/B tests for eCommerce brands. Translate CRO strategy into effective designs that drive revenue. Collaborate with CRO specialists, PMs, developers, copywriters, and media buyers.

One Research Grant - Bachelor within the scope of the Co-Promotion Project ALGARVE-FEDER-02276400-SMARTBET H2O-21679. The grant is for R&D activities in Chemistry, focusing on data collection and analysis relating to water quality and the urban water cycle.

PrimeIT seeks a Functional Tester to analyze requirements, create test plans, and execute manual and automated tests.

CAPGEMINI ENGINEERING At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world's most innovative companies unleash their potential.

Senior Video Editor needed to create high-performing, polished educational and marketing videos. Must have 2-5+ years of video editing experience, strong motion graphics skills, and proficiency in editing tools like Adobe Premiere Pro.

Lead Android development for a new app experience, shaping its architecture, performance, and scalability. Mentor engineers, establish best practices, and guide technical decisions.

Research grant for a First Stage Researcher (R1) within the "AET – Alliance for Energy Transition" project. The grant is for 4 months, with the possibility of renewal, and focuses on adapting traffic assignment models in multimodal transport networks. Applicants must hold a master's degree in Civil Engineering or a related field and be enrolled in a doctoral program or a non-academic degree course integrated in the educational project of a higher education institution.

Senior Fullstack Developer with 10+ years of experience developing/maintaining applications using Java Enterprise Edition JEE. Responsibilities include designing and implementing RESTful APIs, working with databases using Hibernate and JPA, optimizing application performance, and ensuring scalability. Experience with Angular Framework, JavaScript, HTML5, CSS3, and AWS cloud technologies is required. Experience with containerization technologies like Docker and Kubernetes is a plus.

DevSecOps Engineer needed for Stadler Digital Labs, a joint venture between Stadler Rail and Critical Software. Responsibilities include working in a DevOps team, collaborating with software development teams, creating and maintaining tools for deployment, monitoring, and operations, and automating processes. Requires a BS in Computer Science or equivalent experience, proficiency with Linux, Kubernetes, Terraform, scripting languages, monitoring and logging tools, CI/CD pipelines, and certificate management. Experience with cloud providers (Azure preferred), SRE principles, and the full compute stack is also needed.

This fellowship supports research (BI) for the Vine&Wine Portugal project, funded by the PRR and NextGeneration EU Funds. The successful candidate will collaborate on tasks related to characterizing autochthonous grape varieties.

Business Analyst / Product Specialist to interpret brand and user requirements, translate them into functional and technical specifications, and implement features in a PIM/DAM SaaS tool.

Leads and supports global Managing Director & Partners (MDP) lifecycle activities, including recruiting, departures, and office transfers. Manages day-to-day operations for over 250 annual lifecycle requests, ensuring precise document preparation and end-to-end tracking. Develops cash flow estimates and owns critical business analytics and reporting. Partners with stakeholders to ensure alignment, accuracy, and compliance across all processes.

The Business Analyst translates business needs into actionable requirements, working with stakeholders and technical teams. The role involves documenting requirements, supporting agile delivery teams, and contributing to data-driven decision-making.

The University of Trás-os-Montes and Alto Douro is seeking a Research Grant for PhD students to work on the A-MoVeR project. The grant is for 3 months, starting in April 2026, and may be renewed. Applicants must have a degree in Computer Engineering, Electrical and Computer Engineering, or a related field, and be enrolled in a PhD program. The work will involve problem analysis, solution design, prototyping, testing, analysis, documentation, and knowledge transfer.

The Creative Strategist, UGC develops and executes a scalable UGC plan, translating marketing objectives into creative strategies and content briefs for creators. This role focuses on defining content needs, identifying creators, and shaping content across paid, social, and owned channels.

Research Grant (BI) for 3 months, renewable for another 3, starting March 19, 2026. Tasks include evaluating natural product extracts, applying them to food products, and supporting data analysis using R software. Must be enrolled in a PhD program in Biological Sciences or related areas and hold a Master's degree in Food Sciences.