freelance English-speaking jobs in Guimarães

Design and develop avionics hardware for autopilot systems, including schematics, PCB layouts, and test infrastructure. Ensure designs meet DO-254 certification requirements and are environmentally qualified. Collaborate with firmware, mechanical, and production teams.

IT Support Technician needed for a dynamic team providing first-line support in an international environment. Responsibilities include troubleshooting Windows 11, Microsoft 365, iOS and Android devices, managing user accounts, and escalating complex incidents.

Senior O2C Specialist fluent in German to join a financial operations team in Porto. This on-site role offers a stable workweek schedule focused on delivering high-quality order-to-cash service.

Execute monthly general ledger accounting activities, including journal entries, account maintenance, and accruals. Prepare and post recurring and non-recurring journal entries, ensuring proper documentation and alignment with accounting policies. Perform asset accounting activities and manage bank statement reconciliations. Coordinate period-end and month-end closing activities.

Senior Fullstack .NET Developer will design, develop, and maintain scalable applications using .NET, C#, React or Angular, and RESTful APIs. Responsibilities include building cloud-native solutions, contributing to architecture discussions, and applying clean code principles. Experience with Azure, AWS, or GCP is required.

IT Support Technician needed for a part-time role (24 hours/week) in São Domingos de Rana. Must have 2-3 years of technical support experience, a technical degree, and fluency in Portuguese, Spanish, and English.

Global Pricing Manager to develop and deploy value-based pricing frameworks for Personal Care and Coatings business units. Lead pricing strategy, market analysis, and collaborate with cross-functional teams to optimize pricing actions and margin.

Administer and maintain PostgreSQL databases, ensuring optimal performance and security. Design, implement, and manage backup and disaster recovery strategies. Monitor performance, troubleshoot issues, and collaborate with development teams.

Caixa Mágica Software seeks an Infrastructure Engineer with experience supporting internet-facing services and distributed systems. Requires a degree in Computer Science or equivalent experience, server environment knowledge (Linux and/or Windows), and proficiency with Microsoft Azure Cloud Services, Terraform, Kubernetes, and CI/CD pipelines. Scripting language proficiency (Bash, Python, Perl) is also needed.

KCS IT seeks a Business Analyst with +4 years of experience in IT. Responsibilities include analyzing business needs, identifying solutions, gathering requirements, and documenting them using techniques like user stories and use cases. Fluency in English and French is required.

Field Technician to install, configure, and support hardware and software in Lisbon. Must have experience with Windows, MacOS, Office 365, Active Directory, and client device support. Fluency in Portuguese is required.

Accounts Payable Analyst will process invoices, credit notes, and payment proposals. The role involves managing supplier queries, retrieving data for audits, and reconciling accounts.

Winthrop Technologies is Europe’s only dedicated data centre delivery partner, offering full turnkey solutions from design through to construction and commissioning. Headquartered in Dublin, we deliver projects across Europe and have become the most trusted name in our sector. We are currently seeking an experienced Crane Appointed Person to join our team on a major Data Centre project, in Dublin.

Joom seeks an experienced Head of CRM to own and execute the company's CRM strategy, leading a team and promoting Joom.com internationally. Responsibilities include defining CRM's role in engagement, retention, and revenue, leading a team, and owning the weekly sales calendar. Requirements include proven experience in CRM, lifecycle marketing, and strong technical skills in data architecture, campaign analytics, and A/B testing.

Junior AI developer to deploy AI tools, focusing on knowledge bases, agentic workflows, and fine-tuning. Assist in technical implementation of use cases and contribute to the cross-functional AI Lab.

Delivery Manager to lead innovation, transformation, and strategic IT projects. Manage cross-functional teams, coordinate delivery roadmaps, and ensure execution milestones are achieved. Proven experience managing projects, stakeholders, and roadmaps in fast-paced environments. Fluency in Portuguese and English required.

Junior AI Consultant to work on client projects and internal product initiatives. Focus on AI implementation, automation, and digital transformation. Assist in scoping, delivering, and building solutions tailored to client needs. Contribute to the development of experimental tools and internal products.

Project Manager to oversee construction projects from planning to completion. Responsibilities include resource allocation, cost management, scheduling, contract administration, and safety management. Requires a Bachelor's Degree in Engineering/Construction, registration with Ordem dos Engenheiros, and 5+ years of experience.

Performs technical tasks within maintenance and operation activities, ensuring compliance with deadlines, quality, and regulations. Responsibilities include starting/stopping production, routine maintenance, troubleshooting, and record keeping. Requires 2-4 years of experience in similar roles and a Professional Course in Maintenance (Electromechanical area). Must be available for rotating 12-hour shifts.

Manages and coordinates all product development activities, ensuring technical documentation accuracy, supplier coordination, and cross-functional integration.