freelance English-speaking jobs in Valongo

Android Software Engineer II on the SDK team will contribute to Android and Flutter SDKs and related mobile integration features. Responsibilities include adding new features to existing integration channels and helping build support for new mobile and device channels. The role requires 3+ years of experience in mobile development, strong knowledge of Android and its core frameworks, and expert-level proficiency in Kotlin or Java. Experience with Flutter and building public-facing APIs or SDKs is preferred.

Cybersecurity Analyst to investigate and handle security incidents, perform technical analysis, and execute mitigation actions. Experience with SIEM, SOAR, and security playbook development required.

Performance Management Expert needed to design and own a continuous performance management system for a 38-person team. The system will utilize data from various sources, automate grading across three axes (results, skills and AI leverage, teamwork), and provide individual and team dashboards.

Robotics Engineer will design and engineer mobile robotic systems, focusing on software development and algorithm integration. Responsibilities include specifying, designing, and implementing software for autonomous mobile robots, developing automated testing software, and coordinating design integration across teams.

Develop and operate the backend of the EnBW mobility+ App using Java and Spring Boot. Deliver across the SDLC with a focus on test-driven development and production stability. Mentor developers on engineering best practices and testing.

Drive and shape global procurement strategies for material field purchasing within the automotive sector. Manage supplier lifecycle activities, optimize supplier networks, and lead sourcing processes.

Level 2 Security Operations Center (SOC) Analyst to investigate and mitigate complex security incidents. Experience with SIEM platforms, use case engineering, SOAR technologies, and playbook development required.

Electrical Engineer will implement and manage electrical and firmware-related product changes, ensuring accuracy and manufacturability. Responsibilities include collaborating with engineering teams, reviewing designs, managing data release, generating electrical harness models, and supporting production. Requires a Master's degree in Electrical Engineering and 3-5+ years of experience in product management related to firmware, PCB, or wiring for manufacturing environments.

Application Consultant for PACS implementation and upgrades in hospital environments. Requires experience with SQL, database systems, and .Net. Knowledge of DICOM, HL7, and IHE is a plus. Responsibilities include software upgrades, integration with imaging systems, and technical support.

Technical Leader will define, design, and implement complex IT solutions, ensuring functional and technical consistency. Responsibilities include leading technical design, participating in Proofs of Concept, and ensuring compliance with quality and security standards. The role requires 7+ years of experience in demanding IT environments with expertise in Java, Spring, API design, and Agile methodologies.

We are seeking a .NET Developer with 5+ years of experience in C# and the Microsoft ecosystem. Must have in-depth knowledge of Kafka and experience with event-driven architectures, microservices, and RESTful APIs. Strong database skills (PostgreSQL and MongoDB) and understanding of object-oriented programming are required. Fluency in Portuguese and English is essential.

Provide expert-level French-language support to users managing their finances online. Troubleshoot platform issues, guide users through financial tools, and ensure interactions meet security standards.

Redwood Engineer will design, configure, and implement Finance automation use cases using Redwood. Responsibilities include collaborating with stakeholders, developing Redwood processes, and integrating with ERP systems. Requires 4-9 years of experience in Finance automation projects using Redwood and strong knowledge of Redwood components.

Dellent seeks a DBA Oracle with +3 years experience in Oracle 11g, 12c, and/or 19c. Must have solid debugging and troubleshooting skills and experience with Oracle RAC, Single Instance, RMAN, and Dataguard. MS-SQL, MySQL, Sybase, and/or Hadoop experience is a plus. Fluent in Portuguese and English required.

Manages the full sales and purchase cycle, coordinating with suppliers and customers. Prepares and issues documentation including invoices, certificates, and transport documents. Coordinates warehousing and transport operations, and communicates with customs agents. Requires strong communication and organizational skills, previous experience in import/export logistics, and fluency in English.

Junior Life Sciences Consultant to support international projects in Quality Assurance, GxP compliance, and documentation management. Create, review, and maintain technical documentation and collaborate with global pharmaceutical clients. Requires fluency in French.

Fullstack Developer (Angular + Java) to develop and maintain front-end and back-end applications for an Energy project. Requires 5+ years of Angular (v8+) experience and 3+ years of Java and Spring Boot experience.

Speechify seeks a Software Engineer to build and maintain data ingestion pipelines for AI model training. Responsibilities include data sourcing, infrastructure management, and collaboration with scientists to optimize data quality and scale. Candidates should have 5+ years of software development experience, proficiency in Python and Linux, and experience with cloud platforms (GCP preferred).

Systems Engineer needed to analyze customer needs, develop system requirements, and troubleshoot hardware, software, and system problems. Requires a degree in Electronic, Communications, or Telecommunications Engineering and experience in design documentation. Senior roles require network certifications and experience with virtual and hyperconverged infrastructure.

Technical Product Owner will drive the global platform evolution, owning the team's roadmap and backlog. Responsible for creating clarity on deliverables, managing technical debt, and defining end-to-end requirements. Requires 5-10 years' experience in an agile environment, a degree in a relevant field, and fluency in English.