freelance English-speaking jobs in Valongo

Data Engineer will design, develop, and maintain scalable data platforms for data storage, processing, orchestration, and analysis. Responsibilities include building data pipelines, ensuring data accuracy and integrity, and collaborating with cross-functional teams. Requires a BSc or MSc in Computer Engineering or IT, 5+ years of Data Engineering experience, and proficiency in programming languages like Java, Scala, or Python, as well as experience with event streaming platforms and data processing frameworks.

Provides post-Go-Live Business-As-Usual (BAU) support for HR solutions in Portugal. Manages ticket requests, documentation, and reporting. Conducts L1, L2, and L3 support activities and facilitates change requests. Requires expertise in Business Analysis, HRIS implementations, and international contexts.

The Manager, Accounting Controls will oversee accounting operations, ensure financial governance, and lead a team in a fully remote environment. Responsibilities include managing the month-end close process, overseeing accounting operations, mentoring a team of accountants, and collaborating with external partners. The ideal candidate will have fluency in English and Spanish, post-qualified accounting experience, and experience with SAP or comparable ERP systems.

Senior Python Developer needed for a hybrid project in Porto. Requires a Master's degree, 5+ years of data-oriented development experience, and strong Python skills. Fluency in English and French is a plus.

Full Stack Developer with 4-5 years of experience needed. Expertise in .NET, .NET Core, ASP.NET Core, C#, Angular 10+, HTML, CSS, TypeScript, and REST APIs required. Experience with relational and non-relational databases, Git, CI/CD tools, and testing frameworks is essential. Fluent English required.

Lead a team of engineers building applications for global Fortune 500 clients. Guide technical direction, ensure quality delivery, and foster continuous improvement.

Exceptional temporary travel nanny needed for 5-month-old infant. Contract runs June 15 - August 30, 2026, starting in Puerto Rico and transitioning to Portugal. Schedule is 7am-8pm, Monday-Friday, plus one weekend day. Must have 6+ years of professional nanny experience with infants, be comfortable with travel, and possess excellent communication and organizational skills.

Designs and plans industrial buildings and facilities, ensuring functionality, safety, and aesthetics. Collaborates with engineers, contractors, and clients to develop innovative solutions.

Project Specialist Graduate role in Lisbon, Portugal. Start date: September 2nd, 2026. Participate in training, networking, and mentorship. Rotate through two teams within the Customer Experience organization. Recent graduate or equivalent experience required. Fluent English and interest in technology business operations.

Associate Analytics Strategy Lead will shape clinical study strategies, translate data into actionable insights, and present recommendations to clients and internal stakeholders.

This internship provides practical experience in VAT Compliance, supporting documentation handling, data validation, and process tracking across jurisdictions.

The Plant Manager will oversee daily plant operations, manage supply chain and production planning, and ensure the efficiency of manufacturing processes.

Staff Infrastructure Engineer will architect and evolve the private cloud platform for compute, networking, distributed storage, and bare metal as a service (BMaaS). Responsibilities include designing, deploying, and operating large-scale OpenStack and Ceph environments, leading data center expansion, and defining infrastructure as code standards.

Experienced customer service agent needed for a full-time role in Quinta do Lago, Portugal. Provide support via email, chat, and phone for a key campaign. Must be fluent in Dutch and English.

Develop and maintain SAP ABAP solutions in complex business environments. Translate functional requirements into technical solutions, build reports, interfaces, and custom developments. Provide bug fixing, production support, and performance optimization.

Analytics Engineer will design, build, and own complex data models within a dbt-powered "Unified Data Model". You will act as a consultative partner to business teams, driving proactive, data-driven insights. Champion self-service analytics and mentor junior engineers. Requires 3+ years of experience in an Analytics Engineering position, expertise in SQL and dbt, and strong business acumen.

Quality representative will implement quality audit programs, develop training materials, and act as a customer representative for quality matters.

Senior Identity & Access Management (IAM) Expert needed to lead Siemens-wide IAM strategy and roadmap, focusing on Zero Trust architecture. Experience in identity governance, risk, and compliance, including regulatory frameworks (NIS2, GDPR, eIDAS 2.0, DORA), is required. Must possess expertise in enterprise IAM architecture, modern authentication, non-human identity security, and emerging identity technologies.

Senior Data Streaming Engineer needed to develop and maintain real-time streaming pipelines using Apache Flink. Responsibilities include designing scalable streaming architectures, optimizing performance, and ensuring data quality. Strong experience with Apache Flink, event-driven architectures, and distributed systems is required. Professional proficiency in Portuguese is mandatory.

Develop, integrate, and implement humanoid robotics solutions for industrial applications. Contribute to proof-of-concept design and execution, focusing on validation and scalability. Collaborate with internal and external stakeholders to align robotic solutions with industrial processes.