freelance English-speaking jobs in Valongo

Develop and refine hybrid machine learning models for process unit optimization in DataHowLab. Design, implement, and validate upstream bioprocess models, translating scientific knowledge into code. Collaborate with R&D engineers, data scientists, and product teams.

Drive new business sales for Anchorage Digital's full suite of products, originating new mandates across client types, with particular focus on crypto native firms. Originate and close a pipeline of opportunities across all of Anchorage Digital’s business lines and build meaningful long term relationships with clients.

As a Cybersecurity Expert, you will implement and customize ServiceNow modules, develop integrations with third-party tools, and create automated workflows to streamline service requests. You will also configure platform security, develop dashboards to track security metrics, and ensure compliance with security and audit requirements.

As a Chemfeed Project Engineer, you will design and implement chemical dosing solutions for new build and replacement projects. You will manage multiple projects, coordinate resources, and ensure on-time and on-budget delivery. You will also support commissioning activities, manage customer satisfaction, and participate in proposal activity reports.

Backend Engineer will improve e-commerce search experiences for hundreds of millions of users. Responsibilities include planning and delivering features, building product discovery experiences, and ensuring backend performance and database communication. Requires experience with server-side engineering, web APIs, high-traffic websites, relational databases, and distributed systems.

Ryanair Group is hosting a Cabin Crew Recruitment Day in Lisbon on 09 March 2026. Successful candidates must be willing to relocate and possess the unrestricted right to live and work in the EU. Applicants must be between 5'2" and 6'2" tall, able to swim 25 meters, and comfortable speaking and writing in English.

Low-Code Engineer to build complex AI workflows using n8n, Anthropic, and OpenAI APIs. Develop AI-driven communications, intelligent reporting, and data synchronization systems. Must be data literate with SQL and experience in prompt engineering.

Revenue Operations Business Partner to oversee global GTM processes, standardize workflows, and drive revenue growth through data-driven insights.

Advanced Sr. HRIS Specialist will execute data migration, manage Role Based Permissions, provide HRIS support, and configure workflows in SuccessFactors. Requires a bachelor's degree, 5-8 years of experience in HRIS, and SuccessFactors certifications.

Support corporate lawyers and stakeholders on a range of projects, including Revolut Group's expansion initiatives. Manage document workflow, assist with knowledge sharing, and design process improvements.

Leads a parts operation, supporting Parts Advisors to achieve KPIs and deliver exceptional customer experiences. Manages day-to-day operations, motivates and develops team members, and ensures parts standards and procedures are up-to-date. Requires experience as a Lead Service or Parts Advisor, strong leadership and communication skills, and proficiency in Portuguese and English.

Salesforce Business Analyst needed for a contract-to-hire role in Lisbon. Translate business needs into Salesforce solutions, collaborate with delivery teams, and support end-to-end Salesforce initiatives. Proven experience as a Salesforce Business Analyst in enterprise environments and strong understanding of Salesforce core platforms required.

Participate in performance, load, and scalability testing of Veeam product components. Assist with test planning, execution, and metric collection. Analyze results to identify bottlenecks or regressions. Reproduce performance issues and collaborate with teams to validate fixes. Document test findings clearly.

Experienced Azure Engineer needed for Continuous Improvement team. Resolve complex Azure issues, act as escalation point, and proactively identify and remediate recurring problems. Must have 5+ years of Cloud Engineering experience, Microsoft Azure Administrator Associate certification, and strong DevOps tool knowledge.

The Warehouse Manager oversees inventory management, from receiving raw materials to shipping finished goods. Responsibilities include directing personnel, ensuring accurate inventory, implementing FIFO, developing delivery schedules, and improving logistics performance.

Marketing Executive to support multi-channel campaigns, create content, and analyze KPIs. Requires 2+ years of marketing experience, digital marketing knowledge, and fluency in German and English.

The Procurement Specialist facilitates governance, oversees supplier performance, supports RFP processes, negotiations, and contracting within Travel, Meetings, Cards, and Fleet categories.

Junior Business Process Analyst to analyze, document, and optimize business processes. Requires strong analytical, problem-solving, and communication skills.

Junior HR Information System Specialist to support HRIT initiatives and system operations. Assist with implementation, configuration, and optimization of HR tools. Provide user support and translate HR processes into system setups.

Develop and customize Dynamics 365 solutions, including plugins, workflows, and UI components. Integrate with Power Platform, Azure services, and APIs. Execute quality assurance, including testing and release governance. Build data layers and dashboards for real-time insights.