freelance English-speaking jobs in Valongo

Dutch-speaking professionals are sought for international Tech Sales & Account Management roles. Manage client portfolios, support onboarding, and identify sales opportunities.

Data Engineer / Web Developer needed to design, implement, and maintain data tools, ETL jobs, and data models. Experience with Python, PySpark, SQL, Flask, Vue.js, and Power BI required.

Provide French and English speaking customer support via phone, email, and chat. Assist with product questions, account management, and issue resolution. Document interactions and collaborate with team members.

The Director of Housekeeping will lead the housekeeping department during the pre-opening phase of a new luxury hotel in Lisbon. Responsibilities include collaborating with design and engineering teams, managing FF&E and OS&E installation, and overseeing departmental budgets. The ideal candidate has 3+ years of experience as a Director of Housekeeping in a lifestyle hotel or large 4- or 5-star property, with pre-opening experience and strong project management skills.

Senior Consultant for EY-Parthenon, developing public sector projects and studies in Portugal and for the European Commission. Focus on public policy, program evaluation, and impact analysis. Requires 3-7 years of experience in study preparation, statistical data analysis, and monitoring structural funds. Preferred background in Economics.

Leadtech seeks a Procurement Specialist with 2-5 years of experience in technology procurement. The role focuses on executing the procurement lifecycle, managing supplier engagements, and ensuring cost-effective and compliant purchasing processes. Responsibilities include running sourcing processes, negotiating commercial terms, and collaborating with cross-functional teams.

Senior Software Engineer to build and maintain scalable applications using .NET C# and complementary technologies. Experience with microservices architectures, event-driven systems, and databases is required. Strong technical leadership and communication skills are essential.

Senior Business Manager will oversee strategic business growth, client relationships, and project success. Responsibilities include evaluating business opportunities, managing budgets, optimizing processes, and mentoring staff.

Machine Learning Engineer to develop and deploy machine learning algorithms for digital bioprocessing. Responsibilities include implementing pipelines, improving software packages, and assisting in research and development of novel models. Requires a M.Sc. in a related field, strong machine learning knowledge, and proficiency in Python or Julia.

Leads and develops a team of software engineers, providing technical leadership across C# and C++ codebases. Ensures high engineering standards, predictable delivery, and alignment with business strategy. Manages a geographically distributed team, fostering a culture of accountability and continuous improvement.

Translate and edit in-game text, UI, legal materials, and supporting documents for the German market. Collaborate with a localization team to ensure high-quality, immersive experiences.

Jobbex seeks an AS400 Architect to design, maintain, and optimize IBM i architectures. Requires 7+ years of experience with RPG, CL, COBOL, DB2, and APIs. Proven experience in modernization projects and strong communication skills are essential.

Capgemini Engineering seeks an experienced Linux & HPC Infrastructure Engineer to manage and optimize a secure, high-performance compute environment. Responsibilities include administering HPC workload scheduling, managing Linux storage systems, overseeing backup and disaster recovery, and maintaining network security. The ideal candidate will have RHCE certification or equivalent Linux expertise, experience with HPC schedulers, and strong scripting and automation skills.

Ricoh seeks a results-driven Key Account Manager to lead strategic growth for enterprise and upper mid-market accounts. The KAM will develop and execute account plans, drive revenue and renewals, and orchestrate cross-functional teams to deliver business outcomes.

Devoteam Cyber Trust seeks a Vulnerability Management Operator to execute vulnerability assessments, analyze results, and collaborate with technical teams to mitigate risks.

SQL Database Administrator to manage and optimize SQL Server databases in a hybrid work model. Responsibilities include ensuring data integrity, security, and availability, implementing backup and recovery policies, and supporting development teams.

Customer Solutions Expert needed to support customers via live chat and phone. Must be fluent in German and English, have at least one year of customer-facing experience, and possess excellent communication and interpersonal skills.

This role supports the Sustainability Practice by developing and deploying solutions, conducting analysis, and contributing to practice strategy and reporting. The Practice Consultant will work with clients and case teams to leverage technology solutions and drive business outcomes.

Floor Operations Manager needed for a busy stall at Time Out Market Lisbon. This hands-on role involves running shifts, managing staff, ensuring high hygiene standards, and maintaining excellent customer service. Experience in a fast-paced restaurant environment and strong people skills are essential.

FullStack Developer to build and maintain scalable Java backend services and modern frontend applications using React and Next.js. Experience with relational and NoSQL databases, microservices architectures, and cloud platforms is required.