freelance English-speaking jobs in Valongo

Develop OS-related software for embedded Linux, Android, and/or QNX systems. Responsibilities include writing scripts, driver development, hardware abstraction layers, and OS optimizations. Strong understanding of embedded Linux architecture, AOSP, and Android Automotive OS required.

Founder's Associate internship supporting CEO and management team across operations, growth, and technology. Responsibilities include cross-functional collaboration, customer support, logistics, finance, and office administration. Must have a Bachelor's degree and strong organizational skills.

Audit, monitor, and control maintenance invoices, warranty programs, and cost programs to ensure accurate charging and cost optimization. Maintain vendor accounts, process invoices, and analyze maintenance costs. Support cost control programs and identify areas for savings.

The Key Account Manager manages and develops strategic client relationships, ensuring customer satisfaction and maximizing business opportunities.

Platform Support Specialist needed to coordinate between stakeholders and support teams, optimize processes, and manage documentation for a customer-facing online platform.

Engineer, Validation will execute validation activities, calibrate instruments, analyze data, and prepare reports. The role requires a science degree, at least one year of QA experience, and fluency in English. Knowledge of the injectables pharmaceutical industry and GMPs is preferred.

Venture Capital Intern opportunity for Nova School of Business and Economics students seeking hands-on experience in a fast-paced environment.

Provides facility and material handling equipment maintenance services for FedEx sites in Portugal and South/East Spain. Manages vendor performance, implements projects, and ensures regulatory compliance.

Lead and scale a Machine Learning Engineering team, partnering with data scientists to deploy production-grade ML applications. Shape ML Engineering standards, drive technical strategy, and bridge platform and practice.

The Business Development Manager UCaaS & CCaaS drives growth of Unified Communications and Contact Center solutions within the Maverick division. This role focuses on developing channel partners, increasing vendor adoption, and expanding market share in cloud communications.

Fluent German and English speakers needed for a Technical Customer Service Representative role in Lisbon. Must have excellent communication and troubleshooting skills.

Define and implement integration architectures between Microsoft Dynamics 365 and enterprise systems. Design secure, scalable data flows and support development teams in implementing technical solutions.

Develop and deliver robust Android SDKs, ensuring scalability and high-stakes environment readiness. Solve complex technical challenges with autonomy and champion engineering excellence. Translate customer needs into technical mobile solutions, maximizing business impact and user experience.

Lead procurement for a new MRO facility, managing all aspects of purchases. Responsibilities include sourcing, purchasing, supplier management, and cross-department coordination. Requires a degree in a related field, 3+ years of purchasing experience, strong Portuguese and English skills, and proficiency in MS Office and SAP.

Provides reception services for guests, ensuring a positive experience from check-in to check-out. Completes audits as required and communicates guest feedback to management. Demonstrates knowledge of hotel services and promotes upselling. Adheres to hotel policies and procedures, including security and safety regulations.

Software Engineer to design, develop, and maintain high-quality software applications. Experience with Javascript or Python, cloud platforms, APIs, and CI/CD pipelines is required.

AI Systems Engineering Subject Matter Expert needed to author curriculum for experienced engineers transitioning to system architecture roles. Responsibilities include reviewing and shaping the syllabus, producing lessons using AI-gen tools, designing projects, and iterating on content based on feedback. Must have 5+ years of real-world experience as a Senior Systems Engineer and strong technical communication skills.

Senior IT Project Manager to lead technology projects in the pharmaceutical sector. Plan, execute, and monitor projects, ensuring delivery within scope, budget, and schedule. Manage Agile ceremonies, tools (Jira, Confluence), and stakeholder communication. 5+ years of experience as an IT Project Manager or Scrum Master required. Fluency in English and Portuguese.

Customer Service Representative needed for a leading travel & tourism brand. Must be native/fluent in Czech and English (minimum B2 level). Previous customer service experience is advantageous.

Pricing Manager will develop and evolve pricing models for food, shipping, and non-food items across global regions. This role will monitor market trends, identify pricing opportunities, and collaborate with cross-functional teams to ensure pricing decisions are data-informed and implemented effectively.