freelance English-speaking jobs in Valongo

This part-time role supports daily office operations, people operations, procurement, and executive assistance. Responsibilities include managing office facilities, coordinating events, supporting recruitment and onboarding, handling vendor relationships, and providing administrative support to executives.

Senior Design Systems Designer will contribute to scaling Agoda's design system, developing and maintaining components, and collaborating with cross-functional teams to improve product efficiency and quality.

Human Resources Assistant to support smooth HR processes and office operations. Responsibilities include personnel administration, expense and payroll support, and office management. Fluent Portuguese and English required.

Lead the design, development, and implementation of ETCS signaling solutions for railway projects. Provide technical expertise in signaling systems engineering, ensuring compliance with ERTMS standards. Collaborate on system architecture, integration, and validation of advanced railway signaling systems.

IT Talent Recruiter needed with a Bachelor's degree in Human Resources, Psychology, or a related field and at least 1 year of recruiting experience. Must have solid knowledge of IT roles, experience with LinkedIn and other sourcing platforms, and proficiency in Portuguese and English.

Provide player support for over 1,000 games developers globally. Manage social media channels, respond to game issues, and collaborate with community managers.

Provide Danish and English language customer support via phone, email, and live chat. Resolve customer issues, explain solutions, and document interactions.

The Delivery Operations Analyst translates data into insights, optimizes workflows, and supports operational excellence across the organization. This role partners with Delivery Leadership, Project Managers, Sales, Finance, and Customer Success to ensure data accuracy, streamline processes, and strengthen decision-making. The analyst builds and maintains dashboards, analyzes delivery and operational data, and supports monthly/quarterly business reviews. They also map and optimize workflows, create projects in Cloud Coach, and support Sales and PS teams with Statements of Work (SOWs).

Full-Stack Developer to build scalable features for an application marketplace, including dashboards, APIs, and user-facing components. Develop and maintain RESTful and/or GraphQL APIs. Collaborate with Product, UX/UI, and Partner teams. Requires at least 3 years of experience as a Full Stack Developer with JavaScript/TypeScript, PHP, APIs, and relational or non-relational databases.

Bartender needed to prepare and serve a variety of drinks, provide engaging service, and support restaurant operations. Must have 1-2 years of bartending or hospitality experience, strong communication skills, and the ability to work in a fast-paced environment. Fluent English required.

Technical Business Analyst to join an international team working with a leading cyber security client. Translate business needs into IT solutions, configure and implement solutions on a core banking platform using a proprietary scripting language, and perform unit and functional testing.

Join Our Mission to Improve Lives Worldwide: We are looking for Medical Representative s to join our Primary Care teams across several regions in Portugal (Porto, Braga, Vila Real, Aveiro). At BIAL, our purpose is to be Partners in Life: advancing science, transforming every life we touch.

Provide customer support via phone, chat, and email for a leading European automotive brand. Fluent Danish and B2 English required. Previous customer service experience preferred.

Marketing designer to develop and evolve brand visual ecosystem, create graphic content, and collaborate with team on visual consistency. Requires 5+ years of experience, strong understanding of design principles, AI tool proficiency, illustration skills, and web/marketing design experience. Fluent in Russian, conversational English (B2).

Embedded Software Engineer needed with a minimum of 3 years of experience in software development using C, C++, or ADA. Full-lifecycle development experience required, from requirements gathering to training. Must be passionate, driven, and possess strong communication skills. Fluency in English is essential.

Experienced Project Managers needed for Telecommunications projects in Lisbon or Porto. Plan, execute, and deliver projects within scope, budget, and schedule. Manage cross-functional teams, identify risks, and ensure project compliance.

Information Systems engineer specializing in Microsoft Copilot to deliver collaboration technologies to a global enterprise. Responsibilities include analyzing business processes, establishing system specifications, coordinating testing and implementation, and creating integrations and automations. Requires 1+ year of MS Copilot experience and 2+ years of experience with Office 365.

Part-time Tax Representative & Client Advisor needed for growing international firm. 3+ years of Portuguese tax experience, focus on IRS and property taxes, required. Experience with non-residents and Golden Visa clients is a plus. Native Portuguese and fluent English required.

About The Job The Cash Investigations Team Leader will manage team resources while supervising responsibilities handled by the team to guarantee the smooth functioning of the activity. The team leader will also ensure that productivity, quality and risk management are dully handled while managing relationships with different stakeholders.

Dutch speaking ARC Support Specialist provides customer support for online orders, including delivery management, shipping, returns, payments, and order information. The Specialist handles sensitive customer and client information, adhering to PCI and GDPR policies. Strong communication, problem-solving, and team collaboration skills are required.