freelance English-speaking jobs in Guimarães

Performance Marketing Specialist to drive paid acquisition channel execution and optimization. Manage ad infrastructure, execute creative testing, and optimize for Contribution Margin and CAC. Deep expertise in Meta Ads (and ideally TikTok or Google) required.

Experienced Journalist needed to create breaking AdTech news stories for a B2B media platform. Responsibilities include writing, editing, SEO optimization, and collaborating with team members. Must have 5+ years of B2B journalism experience, strong AdTech knowledge, and fluency in English.

Orca Communications seeks creative individuals to grow and manage social media brands. Responsibilities include producing engaging content, collaborating on campaigns, and analyzing audience feedback. Must be comfortable on camera, organized, and fluent in English.

Decskill is seeking a Quality Assurance Specialist to join their team. The ideal candidate will have experience with ALM, Jira, Xray, Soap UI, Postman, and Jmeter.

Guest Communications & Customer Experience Agent needed for hybrid role. Manages guest communication, support, and issue resolution. Requires fluency in English, strong communication skills, and customer service experience. Night shift, 4 days a week.

Develops and prepares technical production drawings, including as-built drawings and redline updates. Creates and optimizes 3D models for piping systems and structural components. Prepares shop drawings and piping layouts. Analyzes and validates structural and piping elements.

Capgemini Engineering seeks a System Administrator Engineer with 2-4 years of experience. Requires expertise in system administration, including monitoring tools, virtualization, cloud platforms, and relevant certifications. Strong knowledge of Windows Server, Linux systems, Microsoft SQL Server, and networking is essential.

Application Support professional to analyze, maintain, and evolve API integrations. Responsibilities include ticket management, customer communication, error analysis, and collaboration with development teams.

Experienced SAP Architect needed to lead S/4HANA transformation programs. Define architecture, guide teams, and ensure scalable, secure solutions across cloud, on-premise, and hybrid environments.

Observability and Automation Engineer will evolve end-to-end monitoring across hybrid environments, define reliability indicators, and reduce manual tasks through automation using Ansible and Terraform.

Information Security Consultant to develop and implement security strategies, conduct risk assessments, and ensure compliance with industry standards.

Director of Mergers and Acquisitions to drive origination, execution, and client coverage across complex cross-border transactions in Europe. Reporting to the Managing Partner in Brazil, the Director will lead the full lifecycle of M&A transactions and manage counterparties. Requires 7-10+ years of investment banking experience with a focus on M&A and cross-border deals.

Automation Engineer will design, develop, and maintain automated test frameworks for web, mobile, and API applications. Responsibilities include integrating automated tests into CI/CD pipelines, performing root cause analysis, and collaborating with development teams.

Corporate Operations Intern will provide support in finance, human resources, project teams, and general office administration. Fluency in English is required, with Mandarin and/or Portuguese a plus.

Research Technician to join the Immunophysiology Lab at the Champalimaud Centre for The Unknown. Responsibilities include conducting analyses of high-throughput sequencing datasets, developing computational workflows, and collaborating with researchers. Requires a Master's degree in Bioinformatics, Computational Biology, or a related field. Fluency in R, Python, and Bash is essential.

As a Customer Support Specialist – Front Office, you will be the primary point of contact for customers, providing support for daily use of Nextlane software. You will handle incoming requests, resolve issues, and ensure a positive customer experience.

HR Generalist to support employees and managers across multiple business units. Manage HR administration tasks, ensure compliance with labor laws, and support payroll and HRIS systems.

Housekeeping Manager to lead and manage a team, ensuring high standards of cleanliness and guest satisfaction. Develop and implement housekeeping SOPs, manage staff training and performance, and oversee inventory control.

Leads the design, delivery, and evolution of the data platform, pipelines, and models. Ensures high data quality, reliability, performance, and scalability. Collaborates with analytics, product, and engineering stakeholders. Requires 8+ years of experience working with complex data sets and 2+ years leading a Data Engineering team. Expertise in programming languages such as Python, Java, or Scala is required.

National Sales Manager will lead sales efforts across Portugal, focusing on direct-to-consumer sales. Responsibilities include training and mentoring sales and medical teams, ensuring adherence to best practices, and monitoring sales metrics. Requires 5+ years of experience in a similar role and proven expertise in B2C direct sales. Fluency in English is required.