freelance English-speaking jobs in Guimarães

Provide technical support and customer service for solar, energy storage, and electric mobility solutions. Support field service operations and monitor solar installations. Collaborate with teams to resolve issues and contribute to process optimization.

Leads global marketing and growth strategy for a fast-scaling SaaS platform. Develops demand generation, positioning, and international expansion initiatives. Translates marketing performance into business growth metrics. Requires experience in SaaS, RegTech, or technology marketing with a focus on growth and pipeline scaling. Fluent English is required.

ZEISS seeks a QMS Manager to maintain and improve the Quality Management System (QMS) ensuring compliance with ISO 9001 and ISO 13485. Responsibilities include audit program support, management reporting, and continuous improvement initiatives. The ideal candidate will have a Bachelor's or Master's degree in a relevant field, 3-5 years of experience in Quality Management in a regulated industry, and knowledge of QMS processes and audits. Experience with digital quality systems and Computer System Validation is advantageous.

The Employee Service Success Specialist helps customers achieve value from Zendesk's Employee Service solutions. This role focuses on driving adoption, optimizing workflows, and enabling customers to deliver world-class internal service experiences. The Specialist partners with Core CSMs, Professional Services, GTM/Sales, Product, and CX Enablement to reduce customer risk, accelerate adoption, and strengthen long-term value realization.

Provide customer support for meal card products via phone, email, and chat. Resolve customer inquiries, manage complaints, and ensure product knowledge. Fluent French (C2) required.

Finance & Administration Associate will manage daily operations of a new Portuguese subsidiary. Responsibilities include accounting, tax compliance, financial reporting, corporate governance, and supporting funding applications.

Junior Payroll Specialist to join Lisbon office. Responsibilities include preparing payslips, submitting remuneration declarations, and preparing employment contracts. Requires higher education in accounting, management, economics, or related field and at least one year of payroll experience.

Remote, hourly contractor role supporting AI data and language projects. Tasks include data annotation, LLM evaluation, content generation, and localization QA. Requires native or near-native European Portuguese proficiency, minimum C1 English, and strong editorial judgment.

Business Development Intern will manage projects, monitor online sales, collaborate with operations teams, and analyze market trends. Must have a business background, strong analytical skills, and fluency in English.

Lead multiple global software scrum teams using agile methodologies and best practices. Facilitate sprint planning, daily stand-ups, reviews, and retrospectives. Collaborate with stakeholders to ensure alignment and remove impediments. Mentor teams on agile principles and practices.

Asset Operations & Maintenance Technician will carry out maintenance activities for HV, MV, and LV electricity distribution networks. Responsibilities include service restoration, implementing maintenance plans, and ensuring compliance with company policies.

Mid-Level Oracle HCM Developer will design, develop, and customize Oracle HCM modules to meet client needs. Responsibilities include analyzing HR data models, troubleshooting technical issues, and collaborating with Agile teams. Requires 1-4 years of experience in Oracle HCM development and fluency in English.

Experienced Pre-Sales & Account Manager to drive business growth by building customer relationships, identifying opportunities, and supporting the full sales lifecycle.

Provide first contact customer support in Polish and English via phone and written communication. Build relationships, answer questions, and meet service quality goals. Must be a native or proficient Polish speaker with advanced English skills.

Provides technical assistance to end-users, resolving hardware, software, and network issues. Installs, configures, and maintains hardware devices and software applications. Documents troubleshooting procedures and user guides.

Account Manager for Cardiac Monitoring in the South Area. Develops partnerships with healthcare professionals to provide patient management solutions involving medical devices. Requires a higher education in Health Sciences and experience in contact with health and engineering areas.

Senior Construction Manager to oversee quality assurance and quality control of multiple construction contractors for data center projects.

Data Analytics Specialist with experience in various industries including healthcare, marketing, and technology. Proven ability to derive insights from data, collaborate with teams, and present findings to stakeholders. Strong analytical and problem-solving skills.

Designs, builds, and maintains efficient data platforms. Partners with cross-functional teams to build and enhance a seamless data platform. Establishes and enforces data standards and manages a company-wide data registry. Trains and supports users and communicates platform updates. Plans and executes organization-wide platform changes. Leverages data to guide all aspects of engineering work.

Designs, develops, and enhances Field CRM and field intelligence applications. Builds and optimizes back-end services and APIs. Works with data teams to support Databricks pipelines and analytics datasets.