freelance English-speaking jobs in Maia

Senior Buyer specializing in logistics (freight, warehousing, distribution) for global clients. Leads sourcing initiatives, manages tenders, and develops supplier relationships. Requires fluency in French and English, 5+ years of experience in logistics procurement, and strong negotiation skills.

Lead and deliver complex technology initiatives, acting as the central coordination point between internal teams and external partners. Manage multiple high-impact technology projects, ensuring on-time and on-budget delivery. Drive project discovery, translate business objectives into technical plans, and maintain a clear delivery framework.

Supplier Quality Sourcing Developer will ensure supplier response quality, manage warranty incidents, and lead action plans to achieve quality goals.

Middle HubSpot Administrator will maintain and optimize HubSpot CRM structure, workflows, and data. Responsibilities include ensuring data accuracy, creating marketing materials, and supporting outreach operations. Must have 1+ year of HubSpot CRM experience and strong organizational skills.

Experienced Mechanical Project Manager needed for a major data center project in Lisbon. Lead a team of Mechanical Engineers, manage construction, and ensure project delivery to high standards. Requires a Bachelor's degree in Engineering and prior experience leading MEP teams on data center projects.

Senior Full Stack Engineer will design, build, and maintain robust systems, from intuitive frontends to scalable backends. Responsibilities include collaborating with product teams, ensuring privacy and security, and mentoring other engineers. Requires 4+ years of experience in software engineering with expertise in both frontend and backend technologies.

Senior Product Designer will pitch, prototype, test, build, and refine new features for Speechify's text-to-speech products across iOS, Android, and web platforms. Refine UX/UI patterns, rethink onboarding and user flows, and influence the product roadmap.

Manage Deblock's global HR processes, including onboarding, offboarding, and ongoing employee lifecycle management. Ensure compliance across HR processes for a fast-growing, multi-regional team.

Fraud Prevention Data Analyst will design, develop, and maintain dashboards, reports, and metrics to monitor fraud performance and trends. Support fraud investigations by providing analytical insights and data-driven evidence. Collaborate with fraud and other relevant stakeholders to translate data and analysis. Identify emerging fraud trends and risks and advise on countermeasures. Manage data governance, quality, and integrity across fraud datasets.

Leads kitchen staff in preparing quality food while adhering to sanitation and food standards. Manages assigned outlets to meet financial goals. Implements menus, recipes, and training for team members.

Facilities & Maintenance Specialist needed to ensure building infrastructure systems function properly. Responsibilities include technical maintenance, vendor management, and coordinating facility operations. Requires a Bachelor's degree in Electrical or Mechanical Engineering and experience with preventive maintenance plans and building systems.

KWAN seeks an AI Engineer with 2+ years of experience and a Bachelor's or Master's degree in a relevant field. Proven experience with LLMs, machine learning, and deep learning techniques is required. Proficiency in Python and Java, along with experience with data manipulation and visualization tools, is essential. Familiarity with cloud platforms and big data processing frameworks is a plus. Strong problem-solving skills and good communication skills in English are also required. Residency in Lisbon or Porto is necessary.

Provide customer support via phone, email, and chat in Danish and English. Resolve product and service issues, handle account requests, and document interactions. Collaborate with internal teams to ensure efficient problem resolution.

Manage and support Cisco networks, including switching, routing, Wi-Fi, ISE, Meraki, and Catalyst. Configure secure Wi-Fi and remote access solutions and administer firewall platforms. Implement Fortinet SASE and support Azure networking components.

Software Engineer to own feature development and collaborate within agile squads. Responsibilities include requirement analysis, code quality assurance, performance optimization, and documentation. Requires 2-5 years of experience, proficiency in Git, and knowledge of relational databases.

Full Stack Developer needed for a greenfield product at a fast-growing, bootstrapped startup. Build new features end-to-end across frontend, backend, and infrastructure. Must have strong full-stack development skills, an AI-first mindset, and a proactive, collaborative approach.

Customer Support & Billing Specialist for a large-scale public services operation. Handles customer queries, registers requests, performs billing activities, and ensures data accuracy. Requires native or C1 Dutch and good English, strong communication skills, and experience with administrative processes.

Linux Developer - Level 3 Support evaluates, analyzes, and fixes software defects in SUSE products. Responsibilities include reproducing problem scenarios, coordinating bug fixes, and contributing to software infrastructure development. Requires experience coding and debugging C programs, working with Linux, and understanding networking concepts.

The Procurement Specialist facilitates governance, oversees supplier performance, supports RFP processes, negotiations, and contracting within Travel, Meetings, Cards, and Fleet categories.

The Claim Assessor evaluates complex claims to ensure compliance with regulations. Decisions include approval, reduction, or rejection of claims with transparent explanations provided to retailers.