freelance English-speaking jobs in Valongo

Senior SAP S/4HANA Business Analyst will collaborate with departments across the Lead-to-Cash value chain to gather, analyze, and document business requirements. The role involves embedding requirements in end-to-end process design, evaluating commercial processes, and defining functional needs for S/4HANA Sales and VIS applications. Responsibilities also include working with IT teams to design and implement technology solutions, ensuring integration between various systems, and providing guidance on process changes.

Full-Stack Software Developer needed for a global SaaS company. Design, develop, and maintain solutions using .NET, Angular, MS SQL, and PostgreSQL. 4+ years of experience with .NET technologies, HTML, CSS, JavaScript, and relational databases required. Hybrid role with 2 days per week in the Lisbon office.

Machine Learning Engineer (Recommendation Systems) for a global B2C platform. Build and improve recommendation systems, design ML solutions, and collaborate with engineers and product teams. Strong Python and applied ML engineering skills required.

Hexa Consulting seeks a Senior Java Developer with 5+ years of experience in Java development (Java 17 or 21) and strong knowledge of Spring Framework. Must have experience with RESTful APIs, microservices, and relational databases. Familiarity with Git, CI/CD, and Docker/Kubernetes is a plus. Excellent communication skills in Portuguese and English required.

Manage test projects, including budget, timeline, quality, and scope. Develop and communicate test strategies and deliverables. Ensure user participation and stakeholder communication through test reports.

Senior Application Support (Linux) needed for a project in Oporto (hybrid model). Responsibilities include managing incidents, coordinating changes, documenting applications, monitoring infrastructure, and collaborating with development teams. Requires a Bachelor's degree, 6-9 years of Linux troubleshooting experience, proficiency in Powershell or Bash, and fluency in English.

Senior Full Stack Developer will architect, develop, and deploy innovative websites, e-commerce platforms, and web applications. Responsibilities include designing, building, and maintaining applications, integrating AI solutions, and collaborating with a multi-disciplinary team. Must have a Bachelor's or Master's degree in a related field and proven experience as a Full Stack Developer. Proficiency in HTML, CSS, JavaScript, and back-end technologies is required.

Vexia - Tech & Media Group seeks a Paid Media Manager to manage and optimize Search and Display campaigns across multiple platforms. Requires fluency in Portuguese and English, proficiency in Google Ads, and experience with Google Ads. Strong interest in sports and basic understanding of sports betting are also required.

Senior Developer needed for IP phone integrations. Requires experience with SIP telephony, IP phone configuration, and server technologies. Must have strong Java, Linux, and network programming skills. Excellent communication skills are essential.

Credit Controller needed to manage invoices, client relations, and accounts receivable operations. Experience in collections, accounting software, and Excel required. Fluent English essential.

As a Functional Administrator, you will ensure the smooth operation of the Financial Consolidation tool and provide Level 1 support during quarterly closings. You will manage data entry and consolidation environments, security modules, and user support.

Project Manager / Scrum Master to animate daily meetings, report on progress, and help ensure project objectives are met. Facilitates communication, resolves issues, and organizes project events. Requires fluency in English and Portuguese.

Sustainable Wealth Group seeks experienced leaders to serve as Non Executive Directors for pre-seed to Series A startups. Provide strategic guidance, leverage your expertise, and support fundraising efforts. Compensation includes equity or stipend.

GoMining seeks an Account Manager to support and grow its referral and partner ecosystem. This role involves explaining GoMining products, resolving partner issues, and collaborating with internal teams.

Freelance Customer Service Representatives needed for a healthcare support project. Provide product and technical support to customers across Europe. Must have full professional proficiency in German (C2 or above) and fluent English. Previous experience in customer service, technical support, and healthcare is required.

Olisipo seeks a Pentester/Offensive Security Analyst to strengthen the organization's security posture. Responsibilities include analyzing security testing objectives, defining testing scope, executing manual and automated tests, and documenting results. Requirements include experience in pentesting, offensive cybersecurity knowledge, and strong communication skills. Fluency in English is required.

Provide customer service to Danish speakers via phone, email, chat, and social media. Resolve complaints, offer product and service information, and maintain customer interaction records.

Junior Brokerage Officer supports brokerage operations, including invoice management, commission reconciliation, payment processing, and reporting. Requires a finance or banking operations background and proficiency in Excel.

Leads the design, implementation, and management of a global job grading methodology. Oversees the annual salary review process in Workday, develops salary structures, and analyzes compensation data. Manages compensation benchmarking and advises senior leadership on compensation strategy.

As a Scrum Master, you will coach and guide two development teams, ensuring Agile best practices are followed to deliver business value. You will partner with the Product Owner and Tech. Team Lead to refine and prioritize the product backlog, facilitate Scrum ceremonies, and mentor team members.