freelance English-speaking jobs in Guimarães

Analyze computer systems, propose solutions to optimize efficiency, and collaborate with stakeholders to translate requirements into technical specifications.

Lead and develop software engineering, architecture, and QA teams across three groups. Drive performance management, growth, and technical excellence. Own engineering hiring, onboarding, and organizational scaling. Ensure high-quality software delivery and continuous improvement of engineering processes. Collaborate with product leadership and architects on technical direction and roadmap execution.

Accountant needed in Lisbon to prepare financial reports, manage accounts payable/receivable, ensure tax compliance, and collaborate with teams.

Orchestrate client engagements and project teams to deliver high-caliber results. Cultivate strategic relationships with client stakeholders and accelerate business growth by crafting compelling project proposals. Formulate corporate strategies and lead cross-functional international teams. Provide mentorship to junior staff and spearhead marketing and branding initiatives.

Data Engineer to analyze, design, and develop data engineering solutions and projects in Business Intelligence. Experience with Azure Databricks, Python, and SQL Server required.

Provide Dutch-speaking customer support via phone, email, and chat for a global brand. Assist with product questions, orders, and general inquiries. Collaborate with colleagues to resolve cases and ensure customer satisfaction.

Senior Site Reliability Engineer for a leading AI-powered health coaching app. Responsibilities include day-to-day work on AWS, infrastructure-as-code, CI/CD, observability, and on-call rotation. Automation is a core focus. Requires strong problem-solving skills, experience with production AWS and Kubernetes environments, and knowledge of Terraform and GitOps.

Communication & Marketing Intern to support digital and institutional content creation. Responsibilities include managing social media, producing content, and assisting with marketing campaigns.

Design, develop, and maintain robust fullstack applications using Java for backend services and React for frontend interfaces. Write clean, maintainable, and well-documented code following industry best practices and coding standards. Develop and maintain RESTful APIs and integrate third-party services seamlessly.

Develop and maintain Python software solutions, collaborating with teams to implement business needs. Experience with biometric passport systems is preferred.

Lead day-to-day olive, almond, and livestock operations for a growing agricultural estate in Alentejo, Portugal. Drive development, mechanization, and expansion of the 640-hectare estate. Manage budgets, KPIs, and EU agricultural subsidy programs.

Test Automation Engineer to work with consultants and business representatives. Responsibilities include creating, maintaining, and executing test scripts, managing defects, and creating reports. Requires a Bachelor's/Master's degree in a relevant field, 1-3 years of test automation experience, and excellent English communication skills.

Data Analyst Trainee will support the risk business by handling and evaluating claims, producing reports, and presenting data analyses to clients. Requires a higher education in a relevant field, proficiency in Excel and Power BI, and strong communication skills in English.

Maintenance Technician responsible for laboratory equipment upkeep, installation, troubleshooting, and optimization. Develops and manages maintenance plans, collaborates with vendors, and ensures equipment functions according to specifications.

Software Specialist will deliver software for complex sensor solutions, analyze turbine performance, and develop algorithms for smart sensing and diagnostics. Requires a Master's degree in a relevant field, 7 years of experience in embedded software and data analytics, and fluency in English.

Infrastructure Architect to oversee global trading infrastructure, ensuring uptime and performance. Requires Linux system administration, Ansible, OS performance tuning, and production support experience.

QC Associate will define and implement quality control techniques to ensure the quality of raw materials, intermediates, and finished products. Responsibilities include executing analytical projects, ensuring compliance with GMP and regulatory requirements, and managing laboratory operations.

Experienced QA Engineer to test web services, backend systems, and APIs. Analyze business logic, identify issues, and collaborate with the development team. Requires 4+ years of web application testing experience, understanding of web technologies, and database experience. Familiarity with testing methodologies and basic programming skills are preferred.

Two Research Scholarships are available at Instituto de Telecomunicações for the 6G-VERSUS project. Candidates must be enrolled in a master's, integrated master's, or non-conferring academic degree course in computer and telematics engineering. One scholarship focuses on sustainable-oriented ML-supported 6G mobile networking optimization, while the other focuses on network data plane in-network computing dynamic network optimization.

Senior Data Scientist will design and deliver real-time machine learning models to protect GoCardless' global payment network. Responsibilities include contributing to the full model lifecycle, designing real-time ML systems, and collaborating with engineers, fraud analysts, and product managers.