freelance English-speaking jobs in Valongo

UNU-EGOV seeks two Junior Research Consultants to support digital transformation and public sector innovation projects. Responsibilities include research, analysis, report writing, project support, and stakeholder engagement. A master's degree in a relevant field is required, with a PhD and/or 1-2 years of experience considered an advantage. Fluency in English is essential.

Electrical Engineer will implement and manage electrical and firmware-related product changes, ensuring accuracy and manufacturability. Responsibilities include collaborating with engineering teams, reviewing designs, managing data release, generating electrical harness models, and supporting production. Requires a Master's degree in Electrical Engineering and 3-5+ years of experience in product management related to firmware, PCB, or wiring for manufacturing environments.

Experienced Business Development Lead to support and execute business development strategy across Portugal, Spain, and select international markets. Focus on identifying, originating, and developing new business opportunities within the architecture and built environment sector.

IT Business Analyst providing operational support for Process Unity tools and systems. Resolves IT issues, tracks tickets, and delivers Business Analyst support in a BAU environment. Requires a Bachelor's degree and experience in financial or risk-related IT support. French language skills are a plus.

Clinical Data Manager will prepare, conduct, and complete Clinical Data Management tasks on assigned Study Teams. Responsibilities include reviewing study protocols, developing CRFs, and defining edit checks. Requires a Bachelor's Degree and 2+ years of relevant experience.

Product Owner will translate business goals into actionable requirements, guide development teams through sprints, and maintain communication between stakeholders and engineers.

Customer Care Representative handles inbound and outbound calls, providing customer service across various channels. Responsibilities include resolving complaints, collecting feedback, and supporting merchants. Requires 1-2 years of call center experience, fluency in English and Portuguese, and strong computer skills.

Principal Software Engineer will design and develop innovative solutions for client operations improvement. You will lead the data engineering roadmap, mentor junior colleagues, and drive technology architecture. Experience with full-stack application development, Agile methodologies, and CI/CD initiatives is required.

Core Network Engineer (Mid-Level) will design, implement, and support Core Network solutions, including Packet Core and IMS environments. Responsibilities include technical documentation, testing, troubleshooting, and collaboration with project teams and customers. Requires 4+ years of experience in Core Network engineering with hands-on experience in design, deployment, integration, and software upgrades.

Act as a VAT and indirect tax subject-matter expert within a multinational group tax function. Assess and handle complex indirect tax issues, provide advisory support, and ensure correct tax treatment in ERP systems. Contribute to tax policy development and compliance processes.

Customer Representative providing information and processing requests for Polish-speaking clients regarding insurance policies. Requires fluency in Polish (C2) and English (B2), excellent communication skills, and previous customer service experience is preferred.

MASSLAB seeks a Senior Architect with a Master's degree and 7+ years of experience to design and deliver complex projects. Must possess exceptional conceptual and design skills, proficiency in 2D/3D tools, and fluency in English. Revit experience is a plus.

Provide professional support to a global fintech leader's Francophone user base. Manage inbound inquiries, troubleshoot technical issues, and monitor account activity. Full professional fluency in French and a solid B2 level of English are required.

Manage and nurture relationships with publishing partners, optimize campaigns, and identify revenue maximization opportunities. Coordinate with internal teams, monitor KPIs, create reports, and develop strategies to enhance publisher satisfaction and campaign success.

Data Administrator needed to support vehicle pick-up process for cross-border buyers and ensure data accuracy on online marketplace. Fluent English required, other European languages a plus.

Associate People Partner will manage relationships with Blip Managers, provide HR support, and contribute to a performance culture. Requires experience as a People Partner, coaching, data analysis, and knowledge of Portuguese employment laws.

Drive innovation in post-training methodologies for agentic behaviors and tool use in AI models. Refine pre-trained models to enable reasoning, planning, and autonomous tool invocation for real-world applications.

Senior Backend Engineer to design, develop, and maintain backend services for smart locker solutions. Experience with NodeJS, Python, MongoDB, MQTT, and AWS required. Contribute to a fast-growing, innovative team.

Provide customer support via phone, email, chat, and online platforms. Assist with inquiries, account support, orders, payments, and general service issues. Must be fluent in French (C1/C2) and English (B2), have 1+ year of customer support experience, and possess strong communication and problem-solving skills.

Develop and operate the backend of the EnBW mobility+ App using Java and Spring Boot. Deliver across the SDLC with a focus on test-driven development and production stability. Mentor developers on engineering best practices and testing.