freelance English-speaking jobs in Valongo

Senior Full-Stack Software Engineer will build and improve web applications, dashboards, and data tools for a non-profit focused on open-source energy planning. Responsibilities include developing APIs, automating workflows, and ensuring quality through CI/CD. Requires senior experience with full-stack development, cloud services, and Python and JavaScript.

The Regional Marketing Manager Molecular (BIOFIRE) - EMEA will develop and execute the EMEA marketing strategy for the BIOFIRE product line. This role will translate global marketing strategies into regional programs, optimize portfolio performance, and support country teams in driving commercial impact. The position requires 3-5 years of marketing experience in the IVD sector, ideally with molecular diagnostics experience.

Service Delivery Manager to ensure high-quality IT service delivery for financial operations. Manage incident, problem, change, and release processes, and drive continuous service improvement.

Backend Developer to design, develop, and deliver scalable software solutions using .NET, Azure, and microservices architectures. Requires 4+ years of experience, proficiency in C#, .NET Core, and knowledge of Agile methodologies.

As a SAP Tester, you will collaborate with a team to test SAP S/4HANA product features for Siemens business organizations. You will design, execute, and maintain test cases, prepare test data, and apply a holistic testing approach.

Experienced SAP BW Consultant needed for enterprise data warehousing and analytics solutions. Focus on SAP BW data modeling, ABAP development, and integration with SAP S/4HANA Cloud. Requires 5+ years of SAP BW experience, strong ABAP skills, and understanding of S/4HANA data models. Fluent English and experience in virtual, cross-cultural teams are essential.

Senior Digital Marketing Specialist focused on Google Ads optimization for high-value clients. Requires C1 level German, strong analytical skills, and 1+ year of Google Ads experience.

Quality Test Engineer will define acceptance criteria, plan and manage environmental simulation testing, and execute hardware and software tests.

Workday Product Specialist (Learning & Development) will support analysis, configuration, and continuous improvement of Workday. Responsibilities include troubleshooting, user support, system maintenance, release management, and business consulting. The role requires experience with Workday Learning & Development, HRIS implementations, and strong analytical and communication skills.

DevOps Site Reliability Engineer to develop and support Observability capabilities for CiscoIT Datacenter and Cloud environments. Responsibilities include reliability, scalability, automation, and uptime of monitoring solutions. Minimum qualifications include a Bachelor's degree or 5+ years of experience, understanding of IT processes, security, and networking basics, experience with software development tools, and programming experience.

DevOps Engineer needed for hybrid model in Lisbon. Minimum 3 years experience required. Experience with IaC (e.g., Terraform), AWS services, Linux, containerization, CI/CD tools, and TCP/IP networking. Fluent English required.

The Senior Accountant leads monthly, quarterly, and year-end closing activities, including reconciliations, general ledger entries, and cost allocations. This role provides guidance to junior and intermediate accountants and participates in process improvement initiatives. Requires 7-8 years of accounting experience with at least 4-5 years in closing & reporting and general ledger reconciliations. Experience with SAP (preferably S/4 HANA) and Excel is necessary.

Data Analyst with a Bachelor's degree in a related field and proven experience analyzing data using tools like SQL and Power BI. Must be fluent in French (C1 level) and possess strong communication and analytical skills.

Project Manager to support global healthcare projects. Responsibilities include coordinating cross-functional teams, managing timelines and budgets, and ensuring compliance with organizational standards. Requires 5 years of related experience, a Project Management Certification, and proficiency in English.

Own the product vision and execution of a hosting platform for Odoo systems. Develop and own the product roadmap, conceptualize new features, and coordinate development to ensure platform reliability and performance. Gather user feedback and drive improvements, ensuring platform adoption and success.

Loomtech seeks a friendly, detail-oriented Office Administrator to coordinate daily office activities, manage supplies, and provide support to teams.

Provide Ukrainian-to-English interpretation services remotely for a global service provider. Must have C1 proficiency in both languages, EU citizenship or Portuguese work permit, and a high school diploma.

Lead a team of German-speaking customer retention agents, achieving performance targets and improving service quality.

Data Engineer II will design, build, and maintain scalable cloud infrastructure and Python applications for AI models. Responsibilities include data ingestion, cleaning, and delivery, as well as API development. Requires 2-5 years of experience in data engineering or backend software engineering with Python, SQL, and a preference for code-based solutions. Experience with AWS and Terraform is a plus.

Junior Order-to-Cash Specialist supports the end-to-end O2C process for international markets. Fluency in Dutch or German and strong English skills required.