freelance English-speaking jobs in Valongo

Senior Project Manager will lead global turbine incident investigations, ensuring swift containment and root cause analysis. The role involves managing cross-functional teams, delivering reports, and collaborating with stakeholders. Requires a bachelor's or master's degree, project management certification, and experience in the wind industry.

Senior S/4HANA Public Cloud Consultant to lead complex implementation projects, provide strategic integration expertise, and drive innovation within the S/4HANA Public Cloud domain.

As a Junior O2C Specialist, you will process customer orders, generate invoices, apply customer payments, and monitor aging reports. You will also support customer query resolution and assist with month-end and audit requirements.

Data Engineer needed for a hybrid role in Lisbon. Requires strong PostgreSQL experience, Snowflake expertise (data modeling, ELT), and Qlik (Sense or View) proficiency. Familiarity with data engineering concepts, scripting (Python or Java preferred), and English fluency are also needed.

Program Manager will coordinate and drive multiple projects, ensuring alignment with business priorities and on-time, high-quality delivery. Responsibilities include leading cross-functional programs, managing communication, identifying risks, and monitoring program performance.

Build, deploy, and support robust, high-load machine learning-based real-time systems for search and browse experiences. Collaborate with technical and non-technical partners to develop and update ranking functionalities.

Provide Dutch-language customer support to clients of international brands. Resolve inquiries and ensure positive customer experiences. Work in a multicultural team with professional training and development opportunities.

Software Engineer II will complete smaller projects autonomously, collaborate with team members to find solutions, and learn to anticipate roadblocks. Requires 3+ years of software development experience, proficiency in Scala and/or Java, experience with Elasticsearch and/or Postgres, and fluency in English.

Lead Flutter Mobile Engineer to design, architect, and deliver high-quality mobile applications. Manage and mentor a team of developers, provide technical leadership, and collaborate with stakeholders. Requires 7+ years of mobile development experience, deep Flutter knowledge, and experience leading high-performing teams.

Lead the development and optimization of web and mobile applications using React, React Native, Node.js, and Next.js. Design and implement rendering strategies (SSR, CSR, SSG, ISR) and drive adoption of multi-frontend architectures. Integrate solutions with headless CMS platforms (Contentful experience is advantageous). Ensure web performance, accessibility, and SEO best practices. Mentor junior developers and collaborate with cross-functional teams.

Senior React Developer with 5+ years of experience in modern frontend development. Strong expertise in ReactJS/NextJS, HTML, CSS, JavaScript, and TypeScript. Experience with REST APIs, NodeJS, CI/CD pipelines, and Git.

Develop and maintain SAP ABAP applications for data center management, data center operations, and IT asset management. Collaborate with internal and client teams to analyze, solve technical issues, and create documentation.

Drive sales efficiency and pipeline through systems, automation, and signal-based decisioning. Own the architecture of the signal-based GTM engine, including designing, building, and managing agents and workflows. This role requires 5+ years of experience in a technical GTM or growth role with hands-on experience in CRM and GTM tooling.

Sales Development Representative (SDR) focused on the European market. Build qualified sales pipelines through outbound engagement, identifying and qualifying prospective clients across the EU. Native-level French and conversational English required.

Provide direct support to CEOs in personal and professional tasks. Manage calendars, schedule meetings, trips, and personal commitments. Organize priorities, track projects, and ensure follow-ups. Prepare documents, presentations, and conduct small market research.

Maximizes product value by owning the product backlog and serving as the key link between business stakeholders and engineering teams. Translates business needs into clearly defined, prioritized work and ensures alignment between product strategy and execution within an Agile environment.

Senior Backend Developer to build scalable backend services using Java, Spring Boot, REST APIs, and microservices. Experience with relational databases, messaging systems, cloud services (AWS, Kubernetes), and DevOps tools is required. Fluency in English and experience in agile environments are essential.

Full Stack Developer to build and deploy web applications using Python (Django/FastAPI) and Vue.js. Responsibilities include designing PostgreSQL databases, optimizing stack performance, and ensuring code quality through testing. Must have a Bachelor's degree and 3+ years of experience.

Post-Doctoral Researcher to develop place-based territorial intelligence for low density regions. The candidate will analyze data, identify indicators, and contribute to the design of a territorial satellite account.

Content Moderation Specialist needed for 24/7 operation in Lisbon. Review user-generated content for compliance with guidelines and local standards. Fluency in German and English required.