freelance English-speaking jobs in Guimarães

Support the design, development, and maintenance of Android applications for enterprise and industrial use cases. Contribute to writing clean, maintainable, and testable code. Collaborate with backend and platform teams to support integration and ensure smooth functionality across devices.

Commission mechanical and process systems at power plant construction sites globally. Ensure commissioning activities meet budget, time, and quality targets while adhering to EHS requirements. Collaborate with internal and external teams.

Senior Full-Stack Developer to design, build, and own full-stack systems using Golang and Vue. Collaborate with teams across the software development lifecycle, ensuring quality standards and resolving production issues.

Production Support Engineer needed for international project in Lisbon. Provide Level 3 support for critical infrastructure and applications. Manage IT projects, coordinate technical teams, and contribute to FinOps initiatives. Strong technical background in Linux, WebSphere, Oracle, Autosys, CFT, Ansible, and cloud platforms is required. Excellent communication, problem-solving, and project management skills are essential.

Drive product initiatives for the Requirements Portal, a key part of Altium's engineering platform. Translate product strategy into execution, define priorities, and manage risks. Collaborate with engineering, design, and customers to deliver solutions that improve team workflows and product development.

DevOps / Cloud Infrastructure Engineer to design, build, and maintain scalable production systems. Experience with Kubernetes, AWS, Docker, and CI/CD pipelines required.

Data Specialist dedicated to Customer Service for a telecommunications operator. Analyzes operational data to optimize performance and customer satisfaction. Develops SQL queries, Power BI dashboards, and Python automation scripts. Collaborates with IT, Marketing, and Customer Service teams. Requires 3-5 years of experience and proficiency in SQL, PostgreSQL, Power BI, and Python.

Provide customer support via phone and email for a leading international car rental service. Manage bookings, modifications, cancellations, and billing inquiries.

Senior Security Operations Engineer to join a dynamic Security Operations Centre (SOC). Responsibilities include investigating security alerts, conducting incident response, and proactively hunting for threats. Requires experience in security operations, incident response, and security frameworks.

Leads global engineering organization, defining and executing engineering strategy with AI integration across tooling, delivery, and SDLC. Owns architectural direction of SaaS platforms, focusing on scalability, security, and reliability. Scales infrastructure to support millions of customers and transitions from single-product to multi-product architecture. Establishes and tracks engineering productivity metrics and delivery frameworks, optimizing processes for predictable, high-velocity delivery. Partners with Product leadership to co-own strategic planning and ensure timely delivery of innovative solutions.

Senior Power BI Developer with 3+ years of experience in Desktop, Service, and Dataflows. Requires expertise in data modeling, DAX, Power Query, Oracle databases, and PL/SQL. Must have strong SQL skills, understanding of ETL/ELT processes, and experience with data governance and security. Fluent in French (C1/C2) and English.

Cloud DevSecOps Engineer needed to analyze and refine IAM policies across AWS, Azure, and GCP. Collaborate with security, engineering, and DevOps teams to strengthen security posture. Must have 3+ years of experience with cloud platforms, IAM, container security, and scripting/automation.

We are seeking a Project Manager with strong Content Management capabilities to support and coordinate the marketing function. This role is responsible for managing the marketing calendar, campaign planning, asset production timelines, and cross-department coordination. The ideal candidate combines operational rigor with editorial precision and has a strong understanding of trading platforms and digital products.

The System Monitoring Technician ensures the continuous availability and performance of IT systems and infrastructure. Using monitoring tools, the technician detects and responds to system alerts, network issues, and hardware/software failures.

Marketing Executive to connect with agencies, companies, and start-ups in Portugal and the EU. Prepare social media content and collaborate with team members. Bachelor's degree in business administration or marketing required.

Develop and execute sales strategies to grow market share in France. Identify and develop new business opportunities across target industries. Manage long sales cycles and build relationships with OEMs, suppliers, and integrators.

Leads and participates in a variety of sports and recreation activities onboard cruise ships. Instructs guests in activities such as rock climbing, Flowrider, volleyball, basketball, golf, ping pong, and shuffleboard. Organizes tournaments and promotes sports deck activities. Minimum one year experience as a physical fitness or recreational sports instructor required. Must be 21 years old and fluent in English. Rock climbing and Flowrider instruction experience preferred.

AI Use Case & Enablement Manager needed for international logistics project. Collaborate with business units to identify, document, and evaluate AI use cases. Translate business requirements into functional and technical requirements for AI applications. Support the introduction of AI apps and agents through pilots, proofs of concept, and rollouts. Ensure AI use cases comply with governance, data protection, security, and regulatory requirements. Consult and provide hands-on support for users in the design and creation of AI agents.

Native Mobile Audio Developer to design, develop, and optimize audio systems for iOS and/or Android platforms. Experience with native audio APIs and real-time audio thread management required.

Regional Medical Advisor role focused on combating, preventing, and eradicating HIV and AIDS.