freelance English-speaking jobs in Valongo

Data Scientist needed for a global MedTech leader. Develop and deploy data science solutions across commercial, manufacturing, and supply chain functions. Requires 4-6+ years of experience in the data science lifecycle, strong programming skills in Python or R, and experience with cloud platforms (Azure preferred).

As a Night Auditor, you will ensure service standards and operational procedures are adhered to. You will review reservations, balance and audit postings, and prepare daily reports. You will also handle guest inquiries, promote hotel services, and maintain a professional appearance.

We are currently hiring a Product Designer (UX/UI) – Design Systems & Accessibility for a project in the financial services sector, focused on evolving digital products with strong impact at scale. This is a hands‐on role for someone comfortable navigating structured environments while still advocating for user needs and design quality.

Lead the seller growth and monetization strategy for a European motors marketplace. Define and drive product strategy, leveraging data and user research to improve supply growth, conversion, revenue, and user satisfaction. Collaborate with engineering, design, pricing, and commercial teams to deliver high-impact features.

Aptiv's passionate team of engineers and developers creates advanced safety systems, high-performance electrification solutions and data connectivity solutions so that automakers can bring advanced capabilities to more people around the globe. This is how we enable sustainable mobility and help to prevent accidents caused by human error.

Junior Account Manager to develop and execute territory plans, maximize client retention, and articulate the value of Bitsight's products and services.

A Company you will be happy to grow with! At InnoTech , it’s all about connecting people with business through technology . We truly care about you , your happiness , and your well-being . We look for passionate people who are eager to learn, evolve, and grow with us - because growth is in our DNA .

Talent Advisor needed for a global RPO account focused on tech recruitment within the EMEA region. Fluent in Portuguese and English, you will manage the recruitment process for high-volume and niche tech vacancies, acting as a consultative partner to hiring managers. Proven experience in IT/Technical recruitment and stakeholder management are required.

Application Security (AppSec) Analyst to identify and manage application vulnerabilities throughout the SDLC. Responsibilities include operating security scanning tools, analyzing and prioritizing vulnerabilities, integrating security measures into CI/CD pipelines, and fostering secure coding practices. Proven experience in application security, proficiency with SAST/SCA platforms, and familiarity with CI/CD pipelines are required.

General Ledger Accountant needed with a degree in Finance, Accounting, or Management and two+ years of experience. Must be a Certified Accountant (CC) with strong computer skills and fluency in English. SAP (FI) and Excel experience are preferred.

The Yazaki EMEA Microsoft 365 Engineer supports the administration, configuration, and operation of Microsoft 365 services across Europe, the Middle East, and Africa. This role focuses on day-to-day platform operations, implementation of approved designs, and regional support.

MoOngy seeks a PL/SQL Developer with experience in the financial services sector. The role involves designing, developing, and maintaining PL/SQL code, performing business analysis tasks, and collaborating with technical and business stakeholders.

Provide high-quality customer support in Italian and English for a Swiss telecommunications company. Handle calls regarding TV, mobile, internet, and fixed-network services. Diagnose technical issues and advise customers on services and offers.

Senior Back End Engineer will design and implement the streaming data platform engine and SDK. Responsibilities include implementing new features for web and streaming applications, collaborating with the team on technical choices, and using AI tools to boost productivity. Experience with Java, Spring Boot, AWS, Kafka, and data processing technologies is required.

Sales Engineer to drive sales growth within the vehicle and automation industry. Identifies new business opportunities, builds customer relationships, and provides technical support. Requires a Master's degree in Engineering and experience in technical sales.

Experienced Odoo Developer needed to design, customize, and optimize Odoo ERP modules. Develop, maintain, and integrate Odoo modules with external systems. Troubleshoot issues, optimize performance, and ensure system reliability.

Junior DLP Analyst to join an international Cybersecurity team. Assess and analyze DLP tool events, escalate as needed, and investigate potential data leaks. Contribute to testing and analysis of new DLP policies. Fluent French and English required.

Product Owner for payment products, ensuring continuous evolution in line with business needs, customer experience, and regulatory requirements. Manage product lifecycle, monitor SWIFT and TARGET specifications, and translate business requirements into technical specifications. Collaborate with cross-functional teams and support implementation cycles.

Solution Architect needed to translate business needs into technical solutions. Design, document architectures, APIs, and integrations. Collaborate with stakeholders and ensure alignment with standards.

Senior Full Stack Engineer with 5+ years of Java experience and 3+ years as a tech lead. Strong skills in Spring Boot, Angular, and DevOps tools like Docker and Kubernetes. Fluency in English required.