freelance English-speaking jobs in Maia

QA Automation Engineer needed for a challenging technical project. Define and develop a test automation strategy, analyze requirements, execute automated tests within CI/CD pipelines, and evaluate automation tools and frameworks, particularly in Java and/or .NET environments.

Project Planning & Control Engineer will support the Project Management Office (PMO) across multiple projects. Responsibilities include developing and controlling project schedules, preparing reports, designing dashboards, coordinating requirements management, and managing project documentation.

Company Emotion is a leading global technology company that delivers comprehensive and reliable fleet management software for rental, leasing and mobility businesses worldwide. Our flagship platforms, Rentway and Carpro, are trusted globally by industry pioneers such as Volkswagen, Ford, Europcar and Hertz, to optimize their operations and grow with confidence.

Market Risk Analyst needed for a leading global financial institution in Lisbon. Produce and validate daily risk indicators, explain complex risk figures, and collaborate with teams to industrialize risk processes. Master's degree in Finance, Financial Engineering, or Computer Science required. Expertise in financial derivatives, SQL, and risk modeling engines is essential.

Senior/Lead Backend Engineer to design and develop scalable, distributed applications and microservices using Go. Focus on production-grade peer-to-peer (P2P) systems, system-level programming, and performance-critical backend services. Collaborate with infrastructure, product, and DevOps teams.

Devote Consulting seeks full-time consultants to support projects in the life sciences industry. Responsibilities include improving processes, data, and systems within R&D, clinical operations, and regulatory affairs. Qualifications include a master's degree, 1-2 years of industry experience (preferred), and proficiency in English (C1). Familiarity with system validation and GxP system operations is advantageous.

On is seeking a Sales Representative to establish and grow its brand presence in Portugal. The role will develop and manage relationships with accounts across all distribution channels, drive sell-in and support sell-out, and ensure brand consistency. Must have 5+ years of experience in sales, account management, or brand roles within the sportswear or fashion industry. Fluent Portuguese, Spanish, and English are required.

Experienced OutSystems Architect needed to design and deliver enterprise-grade low-code solutions. Requires 8+ years of OutSystems experience, including ODC, strong architecture background, and excellent communication skills.

Tech Lead (Java) will own the technical direction, architecture, and delivery quality of a multiplayer tile based gaming platform. Responsibilities include leading design and implementation of backend services, defining integration patterns, ensuring coding standards, and actively contributing code. Requires 7+ years of Java experience, Spring Boot, and experience leading real systems in production.

Design learning experiences powered by AI within a global ecosystem focused on human transformation. Craft protocols, loops, and personalized experiences that leverage AI agents. Own the learning architecture, design journeys, and script engaging learning experiences.

Security Engineer, Red Team will conduct red team exercises, penetration tests, and vulnerability research to strengthen defenses against real-world attacks.

Supervises Front Desk activities including check-in/check-out, room allocation, guest complaints, and cash handling. Leads shift operations in collaboration with the Assistant Front Office Manager and/or Front Office Manager. Completes cashier and closing reports, processes guest check-ins, and ensures rates are accurate. Serves as a role model for the Guarantee of Fair Treatment/Open Door Policy and responds to emergency procedures. Maintains confidentiality, protects company assets, and adheres to company policies and procedures. Welcomes and acknowledges guests, anticipates service needs, and assists individuals with disabilities. Communicates clearly and professionally, develops positive working relationships, and ensures adherence to quality standards.

Senior Analyst Developer will analyze, design, and implement software solutions, ensuring quality and adherence to IT guidelines. Responsibilities include developing C# .NET applications, maintaining legacy systems, and troubleshooting issues.

HR Manager (Expatriate) to support and drive HR operations in East Africa. This role requires fluency in English and Portuguese, relocation to Kenya, and experience in HR operational management.

The LIP – Laboratory of Instrumentation and Experimental Particle Physics seeks a Junior Researcher (PhD holder) for a 6-month project studying anomalous collective modes in Weyl semimetals. The successful candidate will define and theoretically study generalized energy-energy correlators as probes of many-body dynamics.

Execute manual tests (functional, regression, exploratory), create test cases and plans, and identify bugs using Azure DevOps. Validate system integrations and APIs, perform data validation, and ensure quality across digital deliveries.

Full-cycle Sales Representatives needed for USA & Canada, Spain & Mexico, France, UK, and Netherlands. Drive enterprise deals ($5K-$50K+/ annually) with mid-market and enterprise companies. Prospect, qualify leads, conduct demos, negotiate, and close deals. Must have 3-5+ years of B2B SaaS sales experience, proven track record of self-sourcing deals, and fluency in English and the local market language.

As an Avaloq Consultant, you will analyze banking client requirements, configure the Avaloq system, train users, and provide ongoing maintenance and support.

Lead the design, evolution, and operation of cloud infrastructure and DevOps platforms in AWS. Build and operate microservice architectures using Kubernetes and Docker. Define standards for observability, monitoring, and reliability. Mentor engineers and contribute to technical growth.

Project Manager with recent MBA in Management to lead cross-functional projects, ensuring timelines, quality, and strategic alignment.