freelance English-speaking jobs in Valongo

Data Engineer with 5+ years of experience designing, implementing, and maintaining data pipelines using Databricks and Synapse. Experienced in building and managing data products across bronze, silver, and gold layers, integrating structured and unstructured data. Ensures data quality, governance, security, and lineage while optimizing processes for scalability, performance, and cost efficiency. Collaborates with Data Architects, Business Analysts, and stakeholders to translate business requirements into technical solutions. Experienced in automating workflows, testing, and deployments through CI/CD practices. Proficient in Python, PySpark, and SQL. Hands-on experience with Azure Databricks, Azure Synapse, Azure Data Lake, and Azure Data Factory. DevOps and automation expertise (CI/CD, Git, Terraform). Familiarity with data governance tools (Microsoft Purview, Unity Catalog). Agile mindset with focus on standardization, documentation, and reusability.

Data Scientist will combine datasets using machine learning, NLP, and Computer Vision to uncover consumer insights and help clients gain knowledge on consumer behavior.

SAP ABAP Consultant with 2+ years of experience in SAP HR modules is needed to develop, debug, and optimize ABAP programs. Experience with SAP SuccessFactors implementation and integration (SAP BIB) is required.

Project Manager will lead the reporting scope of a global beverage industry transformation program, ensuring successful delivery aligned with timelines.

Microsoft Systems Administrator to support enterprise environments with over 10,000 users. Responsibilities include infrastructure design, administration, and implementation, virtualized environment management (Hyper-V and VMware), hardware deployment, and server monitoring. Requires 5+ years of experience in Microsoft systems administration, strong knowledge of networking technologies, and experience with Microsoft SQL Server.

Junior Engineer/Architect to join the Sustainability team in Lisbon. Responsibilities include building certification in sustainability. Requires a degree in Environmental Engineering, Civil Engineering, or Architecture, construction site supervision experience, and proficiency in Microsoft Excel and AutoCAD.

Senior Fullstack Developer needed for a remote project in Portugal. Requires strong Java (Spring Boot) and Angular experience, RESTful API knowledge, relational database understanding, and fluency in Spanish.

Lead the design, architecture, and delivery of SAP S/4HANA solutions. Define end-to-end architecture, ensure alignment with enterprise standards, and guide functional and technical teams.

Review, classify, and assess user-generated multimedia content (text, images, videos) for gaming communities. Must be a native or fluent Italian speaker with B2+ English proficiency and 6+ months of data annotation or content moderation experience.

Lead and evolve the organization's data platform while managing a growing data engineering team. Responsibilities include designing, delivering, and evolving data platforms, pipelines, and models, ensuring data quality, reliability, and scalability. Requires 8+ years of experience with complex data systems and 3+ years leading data engineering teams. Strong software engineering background (Python, Java, or Scala) and advanced SQL skills are essential.

Senior Power BI Developer to design scalable BI architectures, build interactive dashboards, and optimize DAX measures. Requires expertise in Power BI, DAX, Power Query, Power Apps, Dataverse, SQL, and Gen1/Gen2 Dataflows.

Attune seeks a hands-on AI Researcher to design and implement the core intelligence architecture of its AI-powered coaching product. Responsibilities include translating behavioral theory into computational models, improving longitudinal signal tracking, and building evaluation frameworks for AI reliability. The ideal candidate has experience in applied AI, NLP, and ML systems, with a bias towards building and shipping.

Java (with C#) Developer will contribute to a mission-critical FX trading platform used globally. Responsibilities include development, maintenance, and support of the platform, collaborating with traders and support teams. Requires 3+ years of software development experience, including 2+ years in IT team leadership, mastery of Java core, and solid C# capabilities.

The Documentation Analyst ensures trade confirmations are reliable and reduces operational risk. This role validates trade details against client documentation and market standards, ensuring accurate reflection and formal agreement within required timelines.

Tech Product Owner with 5+ years of experience in AWS migrations and Kubernetes. Strong Agile methodologies knowledge required. Fluency in English (B2 level) is essential.

Business Analyst with 4+ years of experience in functional specifications and user stories. Strong Agile and Waterfall methodologies knowledge. Experience with Confluence, Jira, and Zephyr. Excellent communication and problem-solving skills. Bachelor's or Master's degree in a related field. Fluency in English required.

Business Intelligence Consultant will develop analytical solutions for a major national bank, ensuring data analysis, preparation, and modeling align with the organization's architecture.

Mobile Developer with 3+ years of experience building scalable and user-friendly applications using React Native and Expo. Experience developing, testing, and deploying cross-platform apps for iOS and Android is required.

Senior Software Engineer to develop backend solutions for document identity verification. Responsibilities include building and optimizing Python-based AI/ML systems, integrating with web and mobile applications, and contributing to technical strategy. Requires 5+ years of professional software development experience with a backend and ML focus.

Cloud Platform Engineer needed to design, deploy, and manage robust infrastructure solutions on AWS and Nutanix. Requires 5+ years experience as a Platform Engineer, Infrastructure Automation Specialist, or DevOps engineer with scripting/programming experience (Python, Bash, PowerShell, Ansible, Rundeck). Experience with Infrastructure as Code (Terraform, Cloudformation), containerization (Docker, Kubernetes), and Linux system administration is beneficial.