freelance English-speaking jobs in Valongo

Lead and scale our Application Development team, driving engineering excellence and reliability across systems. Manage backend and frontend engineers, oversee architecture decisions, and improve development processes.

Product Owner with proven expertise in product management, excellent communication and stakeholder management skills, and proficiency in product management tools and techniques.

Devoteam Portugal seeks an ETL Developer with 3+ years of experience using Talend to design and implement data integration processes. Responsibilities include managing data pipelines, supporting APIs, and collaborating with development teams. Must have strong experience with Talend, PostgreSQL, OpenSearch/ElasticSearch, and Java APIs.

Senior System Administrator needed to manage internal and customer-facing services in a DevOps environment. Responsibilities include system architecture, performance optimization, backup & recovery, security, monitoring, Kubernetes management, and incident response. Requires 4+ years of experience as a System Administrator or Operations Engineer with expertise in containerization, IaC, and large-scale data management.

Oracle Hyperion Planning Consultant needed for EPM projects. Analyze business requirements, design solutions, implement data models, and collaborate with stakeholders. Strong Hyperion Planning 11 skills required.

Senior Java Software Engineer needed with a master's or bachelor's degree in Informatics. Must have high proficiency in Java (v17+), Spring, Spring Boot, SQL, and Webservices. Experience with DevOps practices, CI/CD pipelines, and version control is required. Excellent communication skills in Portuguese and English are essential.

SAP Security Engineer with several years of experience in SAP Security Engineering. Strong understanding of SAP authorization concepts, security tools, and cloud solutions. Ability to analyze complex SAP systems, identify vulnerabilities, and define mitigation measures. Excellent communication skills and a structured working style.

Product Design Engineer will support the global engineering strategy for the company's products, collaborating with diverse teams to develop tailored design solutions for cloud-based environments.

Develops Dynamics 365 functionalities and integrations with external systems. Translates business requirements into technical solutions, focusing on performance and security. Drives innovation within the Power Platform.

The Quality Assurance Engineer collaborates with a cross-functional Scrum team to ensure product quality throughout the R&D lifecycle. Responsibilities include active participation in Agile ceremonies, designing and executing automated tests using Python and pytest, and applying AI-assisted testing techniques.

Data Engineer to design, build, and operate end-to-end data systems for both BI and AI workloads. Responsibilities include developing containerized data pipelines, collaborating with DevOps and Data Science teams, and ensuring data quality and system reliability. Requires 2+ years of experience in data engineering or software development with strong Python skills and experience with containerization, orchestration frameworks, and cloud infrastructure.

Marketing & Partnerships Manager to drive commercial growth and strategic partnerships for Dinner in the Sky Portugal. Develop and execute marketing strategies, identify and cultivate partnerships, and manage B2B sales for private events and brand activations.

Customer Success Engineer to provide technical support, documentation, and process improvement for EV charging infrastructure. Requires 5+ years of experience in technical support, electrical engineering, or customer success within the EV charging space. Must have strong communication, troubleshooting, and documentation skills. Fluent in Portuguese and English.

SOC Analyst L1/L2 to monitor security alerts, conduct threat hunting, and investigate security incidents. Develop rules for SIEM and EDR solutions and collaborate with IT and cybersecurity teams. Requires solid cybersecurity experience, focus on threat hunting, and experience defining rules for SIEM and EDR.

Six Research Initiation Grants are available at Instituto de Telecomunicações for the EXIGENCE project. Successful candidates will undertake R&D activities in areas such as API development, infrastructure and messaging, data and architecture, and 5G network performance assessment. Applicants must be enrolled in a bachelor's degree in computer science or electronics and computer engineering and possess relevant experience.

Provide customer service to Dutch-speaking clients of a leading online travel agency via phone, online channels, and email. Assist with reservations, payments, and account inquiries. Resolve customer issues and ensure high satisfaction.

Process Engineer to define, implement, and optimize manufacturing processes for an international motion control systems company. Requires a Master's in Mechanical Engineering, 2+ years of experience, and proficiency in CAD/CAE, GD&T, PFMEA, and root cause analysis methodologies.

Develop film capacitors according to customer requirements and regulations. Analyze specifications, design products, and manage development projects.

Java API Engineer to develop and evolve APIs in a microservices architecture. Experience with API Composition, BFF, API Gateway, Spring Boot, and API documentation (Swagger, OpenAPI) is required.

Principal Software Engineer will shape the technical direction of Sportingtech's iGaming platform. Lead complex technical initiatives, guide architectural decisions, and mentor engineers. Requires 10+ years of experience building and supporting enterprise-scale web applications with Java and optionally JavaScript.