freelance English-speaking jobs in Guimarães

Develop new business opportunities and manage the full sales cycle for a Swiss consulting firm. Lead a team of consultants, oversee service delivery, and manage the business unit's P&L.

Assembles, installs, and maintains mechanical components and systems. Requires previous experience as a Fitter, strong technical skills, and the ability to read blueprints.

Leads the identification, design, and delivery of AI-driven solutions across Finance functions. Responsible for end-to-end ownership of AI use cases, from ideation to measurable ROI. Partners with Finance leadership to define the AI roadmap and build a prioritized backlog of use cases. Drives the development and deployment of AI solutions, including automation workflows, AI agents, and data pipelines. Ensures solutions align with data governance, financial controls, and regulatory requirements.

The QA team is responsible for software testing to ensure high quality standards. The ideal candidate has experience with test case management tools, test planning and execution, and a passion for delivering quality software.

Research Technician position for a 12-month fixed-term contract. The selected candidate will carry out research activities related to lichen ecology. Requires a Bachelor's or Master's degree in Biology with an emphasis on Applied Ecology and Natural Resources Conservation.

Promote and sell products to potential customers in Porto. Achieve sales targets and build customer relationships. Excellent communication and persuasion skills required.

Business Support Manager to manage a portfolio of Bermuda-based client accounts. Responsibilities include handling inquiries, routing service requests, preparing invoices, coordinating logistics, and liaising with partners. Must be highly organized, detail-oriented, and have strong communication skills.

Account Executive will manage full-cycle sales of qualified SMB leads, including contract generation and closing. Responsibilities include prospecting, conducting discovery calls, performing product demos, and negotiating deals.

Smart Consulting seeks a Network Engineer with experience in areas such as Enterprise Routing & Switching, Network Administration, Network Security, SD-WAN, Wireless, and Cloud Networking. Preferred certifications include CCNA, CCNP, CompTIA Network+, Security+, Fortinet NSE, Aruba, Check Point CCSE, CISSP, AWS Advanced Networking, and ITIL Foundation.

The R&D Analytical Technician provides analytical support to drug product development projects, implementing and validating analytical methods, analyzing results, and ensuring data management according to company standards.

Supports the Quality & Food Safety department in ensuring compliance with internal standards and external regulations. Assists with documentation, digitalization initiatives, and cross-functional collaboration.

Provides administrative, financial, and operational support to a team. Manages financial records, assists with project tenders and payments, coordinates office logistics, and supports HR functions. Requires fluency in English, proficiency in Mandarin or Portuguese is preferred. Bachelor's degree and 1-2 years of experience are desired.

Provide remote support and guidance to clients applying for biometric passports. Communicate via email or chat, verify client information, and troubleshoot application issues.

Support the development and industrialization of new heat pump water heater products. Analyze legislation, standards, and technical requirements. Define validation strategies, test plans, and engineering test methods. Execute laboratory testing and prepare technical reports. Collaborate with cross-functional teams.

Treasury Analyst to support daily cash and payment operations across multiple international entities. Responsibilities include executing high-volume payments, managing bank accounts, and ensuring liquidity availability. Requires +3 years of experience in payment processing, cash operations, and banking activities.

Data & Analytics Engineering Manager leads the design and delivery of sustainable cloud and DevOps solutions. Responsibilities include shaping solution direction, providing architectural leadership, and ensuring delivery excellence across engagements.

Sales Representative needed for a contract position in Porto, Portugal. $1,500 monthly salary offered plus free visa and ticket for non-Portuguese nationals. Must have proven sales experience, excellent communication skills, and be fluent in English.

Provide exceptional customer support via email and Zoom, troubleshooting technical issues and maximizing HiBob platform usage. Investigate and resolve customer challenges, collaborating with internal teams for solutions. Create and maintain customer-facing and internal knowledge base content.

Experienced commissioning professionals with data center or mission-critical experience are sought for roles across Europe and the UK. Commissioning Engineers will manage and carry out commissioning activities, validate results, and provide technical advice. Commissioning Managers will lead the commissioning process on complex projects, coordinate teams, and develop commissioning plans. Both roles require strong technical skills, communication, and collaboration.

Experienced Payroll Specialist to manage end-to-end payroll operations for Portugal, ensuring accuracy, compliance, and timely delivery. Collaborate with internal and external teams to deliver seamless payroll operations and support process improvements.