freelance English-speaking jobs in Valongo

Senior QA Engineer to design, develop, and maintain automated test suites using Cypress. Collaborate with developers and product owners to ensure quality throughout the development lifecycle.

The Mechanical Reliability Engineer will assess the condition of mechanical systems, drive continuous improvement to minimize downtime, and lead engineering processes to prevent unscheduled major component failures. They will conduct fleet-wide component-level condition and reliability assessments, propose strategies to achieve reliability, and contribute to spare-parts stock strategies.

Data Architect needed for a Portuguese technology consulting company. Requires strong knowledge of data architecture principles, experience designing data models, and proficiency in data integration techniques. Familiarity with data storage, processing technologies, and cloud-based data platforms is essential.

Guest Experience Experts provide a memorable and unique stay for guests by handling check-in/check-out, addressing requests, and sharing local information. They ensure a safe workplace, follow company policies, and maintain professional appearance.

Java Full Stack Developers will design, develop, build, test, deploy, and maintain software products. Responsibilities include full stack development, database integration, agile methodology participation, code quality assurance, and collaborative problem-solving.

Data Cloud Platform Architect needed for a hybrid role in Porto. Requires a Bachelor's degree in a related field, 5-6 years as a Tech Lead, and 8+ years in data engineering. Extensive AWS experience, including Lambda, Glue, Step Functions, CloudFormation, and CloudWatch is essential. Strong Python skills, experience with relational and NoSQL databases, and knowledge of orchestration tools are required.

Electrical Engineer to provide technical support for proposals, perform design activities, and manage equipment purchases.

A leading international organization seeks a Senior Program Manager – IT Stability & Resilience to lead a strategic program across its Application Support / IT Production division. This role focuses on driving service availability, reducing production incidents, strengthening monitoring and observability, and improving operational excellence across critical IT environments.

Supports Home Keeper Operations team in ensuring smooth property management. Assists with check-ins/check-outs, inventory management, and maintenance coordination. Requires fluency in Portuguese and English, on-site presence in Lisbon, and flexibility for occasional evening/weekend work.

Supports migration of legacy EPC infrastructure to cloud-based architecture. Deploys, integrates, tests, and troubleshoots packet core network components. Analyzes call flows, documents network issues, and validates design documents.

Siemens Mobility Portugal seeks a dynamic IT Systems Engineer to join its Innovation Team. The role involves designing, implementing, and managing networks and systems, architecting infrastructure solutions, leading projects, and maintaining cloud-based resources.

Junior Firewall Engineer needed with 1+ year of experience in firewall technologies (Palo Alto, Fortinet, Check Point). Must have a degree in Computer Science or similar and experience in enterprise or data center environments.

Automation Tester needed for web and API-based applications. Requires 3+ years of experience in test automation, BDD, and frameworks like Selenium, Cypress, or Playwright. Experience with Java, Ruby, or Python, CI/CD pipelines, and Agile methodologies is essential.

Provide technical support to French-speaking customers via ticketing systems, email, and chat. Troubleshoot system, data, and integration issues using SQL to analyze databases.

Software infrastructure engineer to maintain and extend automation environments supporting wearable, out-loud, and automotive product development. Collaborate on pipelines, contribute engineering functionality, and write code with tests and documentation. Requires BS/MS in Software Engineering, 7+ years experience, and proficiency in Python, Groovy, Bash, CI/CD pipelines, container tools, and infrastructure as code.

The Fund Accounting Manager will oversee all aspects of fund accounting for Private Equity and Real Estate clients, including process management, team leadership, and financial oversight. Responsibilities include ensuring accurate and timely completion of work, driving process improvements, and managing the team's budget. The ideal candidate will have a Bachelor's Degree in Accounting, +4 years of management experience, and strong technical expertise in accounting standards and fund regulations. Fluency in English is required.

Senior Technical Architect / DevOps Engineer to design, implement, and operate cloud-focused platforms. Manage Kubernetes clusters, Docker environments, and CI/CD pipelines. Provide architectural advice and security oversight.

Sarmad seeks a Fintech Senior In-app Illustrator to create original illustrations for fintech applications. Responsibilities include collaborating with UX/UI designers, product managers, and developers to develop visual storytelling elements and ensure illustrations align with brand guidelines.

Junior Java Developer to join a leading financial software house. Develop new features, maintain APIs, and participate in Agile development. Essential: Java, Spring Boot. Bachelor's or Master's degree in Computer Science or related field.

HR Project Specialist (Maternity Leave Cover) to lead onboarding, partnerships management, employee experience, and trainee/internship programs. Requires 2-4 years of HR experience, project management skills, and strong collaboration abilities.