freelance English-speaking jobs in Valongo

Quanteam seeks a VBA Developer with 6-9 years of experience to maintain, enhance, and develop VBA applications (Excel, Access, Outlook). The role involves collaborating with business units, identifying automation opportunities, and ensuring application reliability.

Provides data and analytical support to manage and improve Confluent's sales processes. Responsible for forecasting, pipeline analytics, and reporting on sales results. Works with sales leadership to refine go-to-market models and sales methodology.

Lead Data Engineer will deliver data work on client engagements, including pipelines, transformation layers, models, and infrastructure. Responsibilities include adapting to different client contexts, defining internal standards for data work, mentoring data engineers, and contributing to proposals. Requires proficiency in SQL, Python, data modeling, transformation architecture, pipeline design, data testing, data observability, CI/CD for data, data governance, cost optimization, and platform fluency.

Devexperts is seeking QA Engineers to join a talent pool for future opportunities. QA Engineers will design and implement test strategies, develop test practices, and collaborate in multicultural, distributed teams.

Design graphics for digital, social, print, and presentation mediums. Develop customer-facing presentations and ensure designs adhere to brand guidelines. Manage multiple projects, prioritize deadlines, and communicate effectively with stakeholders.

Lead and manage data projects, ensuring on-time, on-budget delivery. Coordinate stakeholders across business and technical teams. Oversee the Critical Data Extension project within CIB, including coordinating Métiers, Regions, and Functions.

Lead and coordinate production operations to meet targets and drive continuous improvement. Manage production KPIs, quality control, and maintenance schedules. Collaborate with cross-functional teams and train a high-performance production team.

Revenue Operations Specialist will execute pricing updates, manage property listings, and support revenue-related processes. Responsibilities include optimizing property announcements, communicating with owners, and documenting operational workflows. Must have strong ownership, process improvement skills, and experience with spreadsheets and digital tools.

Junior O2C Specialist needed for on-site role in Porto. Processes Accounts Receivable and Order-to-Cash transactions, ensures accurate invoicing and collections, and supports month-end closing. Requires a Bachelor's degree, 6+ months of relevant experience, fluency in Dutch, and advanced English. Familiarity with ERP systems and MS Excel is preferred.

Business Intelligence Engineer to design, build, and maintain data models and ETL/ELT pipelines. Develop and maintain dashboards and reports using BI tools like Power BI. Optimize data models and reports for performance. Collaborate with stakeholders to understand reporting needs and translate business requirements into technical solutions.

The MS Collection Aveiro offers international internships for hospitality, culinary arts, or related students. Internship areas include Front Office, Restaurant & Bar, and Kitchen & Pastry.

Senior Full Stack Engineer to design, implement, and maintain end-to-end features across backend and frontend. Build scalable systems, make architectural decisions, and collaborate with product, design, and engineering teams.

Storage & Backup Specialist needed with 5+ years experience in systems administration. Proven experience with RHEL, Ubuntu, Windows Server, SAN/storage administration, and Commvault. Knowledge of backup systems (Fujitsu Eternus, Dell Data Domain) and scripting (Bash, Python) required. Must have strong communication skills in Portuguese and English.

Lead and coordinate production operations to meet targets and drive continuous improvement. Manage production KPIs, quality control, and maintenance schedules. Collaborate with cross-functional teams and train a high-performance production team.

Android developer to deliver and support new features for the Xing.com platform. Collaborate with product, design, and backend teams in a dynamic agile environment. Experience with Kotlin, Jetpack Compose, and Java is required.

ETL developer needed for a national project. Responsibilities include participating in the ETL development cycle, ensuring testing, applying best practices, and providing maintenance and support. Requires experience with IBM Datastage PX, SQL, PL/SQL, Git, Jenkins, and Shell scripting. Fluency in English and Portuguese is required.

DevOps Release Manager will own and maintain the release calendar, coordinate end-to-end release activities, and ensure software reaches production smoothly. Requires 2+ years' experience in Release Management, DevOps, QA, Application Support, or Software Delivery and a Bachelor's degree in a related field.

Experienced Product Manager needed for hybrid role in Lisbon. Own the product lifecycle, from ideation to execution, ensuring innovative and user-centered design. Collaborate with cross-functional teams, gather customer feedback, and define product strategies. Fluency in English is required.

Frontend Developer to join an innovation team specializing in digital product development. Requires 2+ years of experience, strong knowledge of TypeScript, JavaScript, HTML5, CSS3, React.js, and Next.js.

Junior / Associate in Medical Writing to support projects. Draft, edit, and quality-check scientific content. Must have MSc in a scientific field, excellent written and spoken English and Portuguese, and experience in scientific writing. Remote-first, part-time (25-50% FTE).