freelance English-speaking jobs in Valongo

Supply Chain Specialist needed for hybrid role (2/3 days on-site) focused on Outbound Operations/Customer Outbound Management. Minimum 3 years experience required. Strong project management, change management, and financial acumen needed. Experience with SAP SD ERP, ECC, and SAP TM is essential. Fluency in English required.

Senior Solution Architect to design scalable, secure architectures for enterprise environments. Translate business requirements into technical architectures, define API and data models, and lead architecture reviews.

Experienced SAP EWM Consultant needed to design, configure, and support S/4HANA EWM solutions. Ensure seamless integration with PP-PI, QM, IM, SD, and PM modules. Analyze business requirements and provide functional solutions.

Provides second-level support for secure MFT & B2B integration platform. Manages platform monitoring, incident response, and business process development. Configures and maintains servers, communication protocols, and security measures.

Lead and mentor a team of SAP CPI engineers, managing projects and collaborating with stakeholders. Design, build, and deploy complex integration scenarios using SAP CPI standards and Enterprise Integration Patterns. Optimize Groovy scripts and configure adapters, including REST, SOAP, OData, and SFTP.

Full Stack Data Analyst will analyze transactional data, present insights, and support payment migrations and incident follow-ups. Responsibilities include defining and operationalizing core payments metrics, empowering teams with self-serve reporting, and collaborating with stakeholders.

Manage, configure, upgrade, and troubleshoot Red Hat OpenShift infrastructure and storage servers. Ensure OpenShift infrastructure meets business requirements for availability, performance, and security.

Test Analyst to design, execute, and report on functional tests for business applications. Must have experience in testing methodologies, strong analytical skills, and fluency in French.

Senior Full Stack Developer to design, develop, and deploy scalable solutions using a diverse tech stack. 7+ years of experience required. Experience with Flutter, NestJS, and cloud services is advantageous. Must have a Bachelor's or Master's degree in Computer Science or related field and fluency in English.

The Digital Marketing Coordinator will support marketing initiatives across multiple regions, driving new business growth and increasing sales volume. Responsibilities include campaign management, content creation, analytics, and technology enablement.

Leads marketing strategy, campaigns, and social media presence. Manages admissions process, prepares reports, and organizes promotional events. Requires experience in similar roles, digital marketing, and event organization.

Security Engineer focused on penetration testing, incident response, and security investigations. Responsibilities include conducting penetration tests, security assessments of AI-driven features, and incident response activities. Requires strong knowledge of application and systems security, web technologies, and penetration testing tools. Experience with the OWASP Top 10 for LLMs and common AI exploitation patterns is essential. Excellent communication and analytical skills are needed to explain vulnerabilities and collaborate with engineering teams.

Service Delivery Manager for a strategic financial sector project focused on payment services. Requires experience with SEPA, Instant Payments, Direct Debit, payment APIs, and regulatory frameworks.

Java Full Stack Developer needed to design, develop, and maintain software applications. Experience with Java, SQL and NoSQL databases, and agile methodologies required. Familiarity with microservices, cloud, and container architectures is desirable.

As a DevOps Engineer, you will maintain and optimize our scalable, secure, and automated infrastructure across cloud and hybrid environments. You will build highly reliable systems, enable fast and safe software delivery, and ensure cost efficiency, security, and operational excellence. Responsibilities include designing, implementing, and maintaining infrastructure, managing CI/CD pipelines, supporting containerized environments, and implementing robust monitoring systems.

Senior Cloud & Platform Engineer to design, implement, and optimize CI/CD pipelines for software delivery and automation. Experience with AWS, Azure, Docker, Kubernetes, and GitHub Actions required.

Senior E-Mail Application Admin to support and develop email applications, contributing to system design, architecture, and process improvement. Requires 6+ years experience in email application and infrastructure (POP, SMTP, IMAP, ActiveSync, CalDav) and project architecture.

Automation Engineer needed for end-to-end automation solutions using Siemens control systems. Responsibilities include design, configuration, deployment, and support of PLC, HMI, SCADA, and BMS tools. Requires 1+ years of experience with Siemens automation systems and proficiency in TIA Portal, Step 7, WinCC, and industrial communication protocols.

Leads the implementation of data governance within the Finance business line, ensuring alignment with organizational tools, policies, and frameworks. Collaborates with stakeholders to establish data governance practices, roles, and responsibilities. Drives metadata management and data quality initiatives.

Principal Game Designer for Hole.io will design, prototype, and refine gameplay features. The role focuses on core mechanics, player interaction, and overall game feel. Requires 7+ years of experience in F2P mobile game design, Unity experience, and a strong understanding of game feel and player control.