freelance English-speaking jobs in Valongo

Experienced Staff Java Backend Developer sought for permanent role. Design, implement, and test robust backend solutions. Contribute to the full software development lifecycle. Lead complex initiatives, mentor junior developers, and collaborate with teams.

Test Leader for a national project. Contribute to test strategy, design, execution, and reporting. Manage test analysts and report to project stakeholders. Requires a degree in Informatics or related field, 5+ years of test experience, knowledge of ISTQB methodology, and fluency in French.

Felps Group seeks an AI Transformation Specialist to drive AI adoption across IT teams and the Software Development Life Cycle (SDLC). This role involves hands-on AI engineering, change management, and innovation, supporting both immediate AI implementation and long-term transformation.

Senior Performance Test Manager needed with experience in JMeter/Java and K6. Must have strong mobile performance testing knowledge and excellent English communication skills.

Resident Manager to lead operations and guest experience at Dreams Madeira Resort Spa & Marina, a 5-star resort. Responsibilities include supervising departments, ensuring service standards, handling guest issues, and driving operational excellence. Requires previous experience as a Resident Manager in a large hotel or resort operation, fluency in English and Portuguese, and a passion for hospitality.

Supports innovative scalable sales programs across diverse customers, focusing on revenue and product adoption. Provides consultative support on agency and advertiser accounts, drives communications, and resolves technical issues.

Experienced professionals with 15+ years of career experience are sought for a remote, performance-based marketing pathway. Manage digital campaigns, work with pre-qualified leads, and collaborate with a global community. Commission-only earnings.

Senior consultant with 5+ years of experience in public transport and sustainable mobility sought. Must have experience in transport planning, public transport modeling software (PTV Visum preferred), GIS tools, and data analysis. Strong analytical, communication, and team management skills required.

Jobbex seeks an IT Talent Acquisition Specialist to identify, attract, and engage top IT professionals. Manage the full recruitment lifecycle, collaborating with sales to match talent with opportunities.

Senior Data Analyst will provide cost analysis using SAP and BW data, build analysis tools, and research competitor cost structures. Requires 5+ years of experience, data mining expertise, and knowledge of BW-Warehouse, Power BI, SAP, and costing principles. Fluency in English is required.

ServiceNow Developer with 7-8 years of experience, including 3+ years in HR Service Delivery (HRSD). Builds and configures HRSD components, develops platform solutions, automates workflows, and integrates with HR systems.

Lead the implementation, scaling, and growth of platform software solutions for business verticals. Translate business needs into technical tasks, design scalable architectures, and ensure system integration. Manage project timelines, prioritize activities, and deliver features on time. Mentor engineers, promote best practices, and foster a collaborative culture.

As a Radar Signal Processing Engineer, you will troubleshoot radar signal processing issues, develop solutions, and ensure customer-ready radar behavior. You will analyze measurement data, build testing setups, and maintain documentation.

Senior Backend Developer will design, build, and maintain .NET Core APIs and backend services for an AI-powered insurance platform.

Senior React Native Engineer needed to design, develop, and enhance educational mobile apps for iOS and Android. Requires 5+ years of experience building React Native applications, expertise in Typescript, JavaScript, and React Native's architecture. Strong problem-solving, collaboration, and mentorship skills are essential.

Experienced Azure Cloud System Administrator needed to support, manage, and optimize enterprise cloud and hybrid infrastructures. Responsibilities include service requests, incident resolution, Azure platform monitoring, and infrastructure operations. Strong Azure and Windows Server administration skills required.

Claude Code Support Engineer provides technical support to clients using the SMSEdge platform. Investigates and resolves platform, campaign, and system-level issues using Claude Code for analysis, debugging, and documentation. Collaborates with internal teams to resolve complex issues and improve support processes.

Develop and deploy AI/ML models for product features, including content moderation and recommendation engines. Manage backend infrastructure and data pipelines on AWS.

PrimeIT seeks a Support Technician to provide first- and second-line technical support remotely and onsite. Responsibilities include resolving incidents and service requests, supporting Microsoft systems and applications, and troubleshooting videoconferencing tools.

Provide multilingual customer support via phone, email, and live chat. Resolve customer issues, manage complaints, and update customer information in CRM systems. Fluency in Dutch, German, or French plus strong English skills required.