freelance English-speaking jobs in Valongo

Operational Analyst to handle daily trade processing and ensure on-time settlement for equities and bonds. Collaborate with counterparties and custodians to resolve issues. Optimize and automate processes, document changes, and participate in stakeholder meetings. Requires 5+ years of financial industry operations experience and 3+ years in settlement back-office activities. Proficient English required.

Kickstart your engineering career in sustainable mobility. This 12-month program offers hands-on experience in railway projects, international exposure, and mentorship.

Manage telephony infrastructure for global support operations. Optimize routing, reduce costs, and drive channel strategy across multiple markets. Translate operational requirements into technical solutions.

MailerLite seeks a Machine Learning Engineer to build and ship predictive models on behavioral data and fine-tune LLMs. Responsibilities include designing training and inference pipelines, collaborating with product and engineering teams, and ensuring reliable model outputs.

Production Engineer to optimize manufacturing processes, ensure product quality, and improve efficiency. Collaborates with departments to enhance production methods, troubleshoot issues, and implement cost-saving initiatives.

En Globe Travel Retail seeks Freelance Promoters to support international brands at Faro Airport Duty Free. Promote products, engage with travelers, and achieve sales targets. Previous sales, retail, or promotional experience is required. Fluency in Portuguese and English is essential.

Senior User Acquisition Manager to own Google Ads strategy (Search, GDN, DemGen, PMax) and scale paid channels. Proven track record managing large budgets ($300k+/mo) and experience with web funnels required. Must have Google Ads mastery and proficiency in BI tools and tracking platforms.

Design, implement, and support Identity & Access Management (IAM) solutions for global clients. Configure and customize IAM platforms such as SailPoint, One Identity, Saviynt, ForgeRock, Okta, and Ping Identity. Develop integrations between IAM tools and target systems.

The Product Line Controller plans, organizes, and improves financial performance information for each production line. They ensure financial data accuracy in commercial quotations and collaborate with Product Line Managers to achieve desired financial results. The role requires a Bachelor's or Master's degree in a relevant field and 3+ years of experience, preferably in the automotive industry.

Middleware Engineer needed for a challenging project in the financial services sector. Responsibilities include Kafka operations, incident troubleshooting, Qlik Replicate support, and collaboration in an Agile environment. Requires experience with Kafka, Qlik Replicate, CDC concepts, Cloudera ecosystem, and Linux administration.

Support the development, testing, and integration of new hardware solutions for industrial inspection systems. Assist with PCB stress, reliability, and aging tests, fault detection, and rework activities. Contribute to PCB design reviews and create test reports.

Leads the company's global payment strategy, infrastructure, partnerships, and financial performance. Manages payment providers, optimizes payment processes, and ensures compliance with regulations. Requires 6+ years of experience in payments, fintech, or financial services.

Experienced Conversion Rate Optimization (CRO) Specialist / A/B Tester needed to plan, execute, and analyze A/B and multivariate tests across e-commerce websites. Responsibilities include identifying conversion opportunities, developing testing strategies, collaborating with design and development teams, and analyzing user behavior using tools like Google Analytics and Hotjar. Must have a minimum of 3 years of experience in CRO, A/B testing, and digital experimentation, with proven experience working with Shopify. Strong analytical and problem-solving skills are required. Applicants must reside outside of Germany.

Senior Front-End Developer leads Agentic Workflow Orchestration, designing collaborative spaces for human-AI agent interaction. Builds high-performance, accessible UIs using OutSystems to solve complex business problems. Focuses on reducing user cognitive load through UI patterns that make AI actions transparent and seamless.

Full-stack software developer needed to design, develop, and maintain software solutions using Node.js, Nest.js, and React.js. Experience with AI tools and services, Kafka, and Postgres is required. Collaborate with product, data, and UX teams to translate business needs into production-ready solutions.

This internship supports the Technical Customer Services team in resolving technical and operational customer issues related to mobile connectivity services. Responsibilities include assisting with customer case investigation, monitoring support tickets, and collaborating with internal teams.

French-speaking Customer Service Representatives provide phone, email, and chat support to a global client. Assist with product information, troubleshooting, and issue resolution.

The Process Excellence Lead will standardize, improve, and scale operational processes across Recruitment, Operations, and Administration. This role will audit, document, and challenge existing processes, working closely with Lisbon-based teams to identify inefficiencies and implement improvements. The Process Excellence Lead will also ensure processes are scalable and ready to support future automation and AI-assisted operations.

IT Recruiter to manage full recruitment lifecycle for tech roles. Must have native Portuguese, fluent English, and 2+ years IT recruitment experience. Strong knowledge of ATS systems and AI recruitment tools required.

The Finance Manager will be responsible for financial statements and end-to-end financial tasks. Duties include reporting and closing activities, P&L and balance sheet analysis, implementing accounting processes, and financial controlling. The role requires experience in accounting, financial audit, or controlling, strong communication skills, and proficiency in SAP and Microsoft Office.