freelance English-speaking jobs in Valongo

Leads and coordinates a team of jointers for high-voltage cable installations and testing up to 500 kV. Oversees preparation, installation, and testing of HV cables and accessories. Supervises jointing activities at external laboratories and client sites. Ensures adherence to safety regulations, quality standards, and internal procedures.

Experienced Full Stack Tech Lead to lead web development across Surf Eye and Snow Eye platforms. Responsibilities include hands-on coding, mentoring developers, translating product needs into technical tasks, and acting as the bridge between the technical team and founders. Must have 5+ years of full-stack development experience and at least 2 years in a leadership role. Strong experience with React.js, Node.js, and PostgresSQL required.

Provide Italian-speaking customer support via phone, email, and live chat. Resolve customer issues, offer technical guidance, and maintain accurate records.

Provide customer support via phone, email, and chat to Swedish and Norwegian-speaking customers of a financial technology company. Troubleshoot technical issues, assist with account creation, and handle order and delivery inquiries.

As a Presales Solutions Engineer, you will support TeamViewer's commercial business by bridging technical expertise with customer communication. You will deliver product demonstrations, collaborate with sales teams, and assist with Proof-of-Value and Proof-of-Concept activities.

The R2R Supervisor leads a team of three professionals executing accurate and timely Record-to-Report processes. This role manages general accounting, ensures compliance, and drives process improvements within the Shared Service Center. Responsibilities include overseeing monthly, quarterly, and annual financial closes, building internal controls, and supporting system enhancements with SAP S/4.

Remote Wellbeing Specialist provides mental health support to employees through prevention, education, and intervention. This role involves individual sessions, risk assessment, peer support, workshops, and resource referrals. Requires a Master's in Psychology, 3+ years of experience, and fluency in Portuguese and English.

Provide Danish and English customer support via phone and written communication. Resolve customer queries, build relationships, and meet service quality goals. Must be native Danish speaker (C2) with intermediate English (B1), strong communication and problem-solving skills. Must be a local candidate or willing to relocate to Porto, Portugal.

Efacec seeks a skilled Engenheiro Eletrotécnico to design, develop, and implement electrical systems for diverse projects. The role involves collaborating with teams, ensuring compliance with regulations, and supporting project development from concept to maintenance.

Hotel Pre-Opening Coordinator to support the implementation of the pre-opening plan for a new luxury hotel in Melides. Responsibilities include tracking timelines, coordinating with departments and suppliers, and preparing for hotel opening. Experience in hospitality, project coordination, or luxury service environments is required.

Account Executive to drive new business growth in the Portuguese market. Responsibilities include prospecting, lead generation, pipeline management, and customer relationship management. Requires fluency in English and Portuguese, 1+ year of sales experience, and strong communication and interpersonal skills.

Human Resources Intern to support onboarding, offboarding, absences, leaves, relocations, and benefits administration. Assist with HRIS data management, reporting, and employee education. Requires proficiency in MS Office, excellent English and Portuguese communication skills, and strong attention to detail.

Project Director to lead and coordinate a new hyperscale data center project in Portugal. Responsible for timely, cost-effective, and safe project delivery on behalf of the client. Coordinate works of the general contractor and external supply chain. Ensure quality assurance, HSEQ standards, and robust project documentation. Requires 5+ years in a senior project delivery role, construction technical and legislative knowledge, and experience with CSA and M&E packages.

Skylark Aviation Expert, a Swiss-based aviation consultancy, seeks a highly motivated individual for its new Porto subsidiary. This role involves coordinating charter operations, managing documentation, and handling operational follow-up. Fluency in English and Portuguese is required, with French being beneficial. Strong computer skills and a result-oriented mindset are essential.

Senior Data Solutions Engineer needed to design and implement data solutions, integrations, dashboards, and reporting workflows for a Private Equity business. Must have 6-10+ years of experience in data engineering, data architecture, or a similar role with experience in Banking, Financial Services, or a related finance environment.

Designs, builds, and operationalizes AI systems that transform unstructured data into scalable, production-ready services. Develops and maintains production-ready AI services and APIs. Productionizes machine learning and Generative AI solutions, including model packaging, deployment, and lifecycle management. Collaborates with Data Scientists, Data Engineers, and Application Developers to produce models and deliver enterprise-grade AI solutions.

Leads and manages the strategic, operational, and financial delivery of Site Activation activities across assigned studies and regions. Provides strategic oversight and project management for global or multi-regional Site Activation activities, ensuring compliance with ICH-GCP, regulatory requirements, and project timelines. Collaborates with internal teams, regions, and external stakeholders to ensure efficient study start-up execution. Oversees regulatory submissions, approvals, contracts, and essential document processes. Supports business development, including bid defense and client engagement activities. Mentors and coaches team members and contributes to continuous improvement initiatives. Builds and maintains strong client relationships.

Senior UI Motion & VFX Artist will create polished UI animations, transitions, and reward feedback for a mobile F2P game. Collaborate with UI/UX, art, design, product, and engineering to ensure a premium, satisfying, and responsive player experience.

Develop and maintain firmware for autopilot systems on 32-bit microcontrollers. Design and evolve hardware abstraction layers and board support packages. Write and optimize drivers for various sensors and actuators. Integrate external AHRS units and configure communication stacks.

Designs, deploys, and manages endpoint management solutions across Windows, macOS, and mobile platforms. Configures and maintains MDM and endpoint management platforms. Develops and implements device configuration policies and security standards. Automates endpoint management tasks using scripting languages. Monitors endpoint health, security, and performance. Provides technical support and troubleshooting for endpoint-related issues.