freelance English-speaking jobs in Guimarães

Senior Frontend Engineer to build and scale React 18+ apps in TypeScript for a fast-growing EV charging company.

Senior iOS or Android Developer for a 9-12 month project with Liva Healthcare, a health-tech scale-up. Full lifecycle development, code security, and continuous improvement.

Financial Analyst to monitor and process settlement-related claims, detect payment discrepancies, and ensure accuracy of financial transactions.

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.

Junior IT Business Manager to grow business end-to-end, including prospecting, client relationship management, and IT consultant recruitment. Must have Nordic market experience and a Bachelor's degree or higher in a relevant field.

Business Analyst to contribute to project management, perform functional specifications, and ensure support and maintenance of accounting interfaces.

Handles incoming calls regarding workplace accidents, conducts interviews, and completes accident declaration forms. Manages occupational disease declarations, prepares reports, and coordinates with stakeholders.

Leads the development, licensing, and construction-readiness phases of renewable gas and biomethane projects. Manages permitting processes, coordinates project development, and interfaces with engineering consultants and stakeholders. Ensures project schedules, deliverables, and risks are managed effectively.

Provide customer support via phone, email, and chat to Spanish-speaking clients. Resolve inquiries, update customer information, and collaborate with international teams.

Mulesoft Developer needed for hybrid project (Lisbon, 2x/week). Requires Bachelor's degree in Computer Science, Software Engineering, or related field and 3+ years of Mulesoft development experience. Must have experience with integration patterns, REST/SOAP web services, and data formats.

KEMET Electronics Portugal seeks a Mechanical R&D Engineer trainee with a degree in Mechanical Engineering. Preferred qualifications include knowledge of electrolytic capacitors, finite element methods using Ansys software, and CAD skills. The ideal candidate is entrepreneurial, innovative, responsible, proactive, and fluent in English.

Experienced Java Developer to design, develop, and maintain backend services for a Control Framework and Supervision platform. Strong Java (8+), Spring/Spring Boot, RESTful APIs, and relational databases required. Agile/Scrum experience and excellent communication skills essential.

Senior Mobile Engineer will build the next generation of mobile applications for restoration professionals using Kotlin Multiplatform / Compose Multiplatform. Responsibilities include driving feature development, implementing robust offline-first functionality, and collaborating with AI product engineers. Requires 7+ years of experience shipping Android/KMP applications, top-level expertise in Jetpack Compose/Compose Multiplatform, and experience using AI tools like Cursor, Claude Code, or Copilot.

Fluent Spanish (C1) and B2 English speakers needed for a 6-month Customer Service role with a major European airline in Lisbon. Minimum 6 months of customer service experience required.

Product Manager to lead product strategy and roadmap for web and mobile products. Own product discovery, client relationships, and backlog prioritization. Requires 4+ years experience as a Software Product Manager, hands-on engineering experience, and strong product discovery skills.

Reviews design work from agencies, ensuring quality and compliance with standards. Reviews final client work and orders for quality control. Requires knowledge of Photoshop and Illustrator.

Customer Representative providing information and processing requests for insurance policies via phone, chat, email, and letters. Requires fluency in Polish (C2) and English (B2), excellent communication skills, and a proactive, team-oriented attitude.

Designs, develops, and maintains Alteryx workflows for data preparation and automation. Supports Power BI development and maintenance, including datasets, reports, and dashboards. Requires strong Alteryx Designer, Power BI, and SQL skills.

Stardex seeks a Forward Deploy Engineer to manage end-to-end data migration for new customers, building and improving migration tools, and working with search firms to extend Stardex via API.

Experienced DevSecOps Developer to design, develop, and maintain cloud development tools and environments. Responsibilities include software development, automation, security, collaboration, and documentation. Requires 5+ years of software development experience, strong AWS skills, and experience with GitLab CI/CD, Terraform, and AWS CDK.