freelance English-speaking jobs in Valongo

Design and develop reusable React components for scalable product development. Build and maintain internal front-end libraries. Collaborate with product and engineering teams to enhance user experience. Strong professional experience with React in complex applications and Redux is required.

Junior IT Engineer will analyze and optimize IT environments, implement enterprise solutions, and support performance testing. Collaborate with teams to ensure project alignment and client satisfaction.

Mindrift connects Computer Science experts with project-based AI opportunities. Contributors design problems, evaluate AI solutions, and validate calculations using Python.

Lead the development of network solutions offers for business customers. Design promotional materials, build relationships with customers and partners, and ensure solution implementation. Requires 7+ years of experience in product/solution management, business development, or pre-sales, advanced network knowledge, and proficiency in Portuguese and English.

Design, build, and maintain Customer Engagement (CE) solutions for clients. Collaborate with clients, IT staff, and business partners to ensure high-quality solutions.

Provide customer service support for Airbnb's French-speaking customer base. Handle property damage claims, analyze customer situations, and identify fraudulent claims. Must be fluent in French and English, possess strong communication and analytical skills, and have experience handling property damage claims.

Build the data foundation and AI-powered tooling that turns operational data into actionable insights for engineering, product, and finance stakeholders. Design and maintain analytical data models, build ingestion and normalization pipelines, and develop AI-powered reporting tools. Collaborate with subject matter experts to translate requirements into accurate data models and query patterns.

Data Engineer needed to design, implement, and optimize data infrastructure on Microsoft Azure. Expertise in Azure, Microsoft Fabric, and Apache Spark required. Responsibilities include developing data pipelines and utilizing Spark for large-scale data processing.

Senior .NET Developer to analyze and implement software solutions using C#, .NET Core, and relational databases. Must have experience with web frameworks (Angular preferred), TDD, and version control (GIT/SVN). Requires 6+ years of experience and fluency in English and Portuguese.

FullStack Developer with 4+ years of experience in .NET (C#, REST APIs, PostgreSQL) and ReactJS. Develop backend solutions, implement frontend components, and contribute to system design.

As Technical Lead, you will be the primary technical decision-maker for Video Security development projects. You will lead the technical concept, requirements engineering, system architecture, and risk assessment. You will also synchronize hardware and software development, oversee the entire development process, and ensure product certification.

Leads and coordinates information systems and digital transformation projects from planning to delivery. Manages project scope, timelines, and deliverables in collaboration with stakeholders. Coordinates multidisciplinary teams and ensures project progress, risks, and budget align with goals.

Service Manager to lead IT service delivery and evolution, ensuring high performance and business alignment in a regulated environment.

Drive global B2B growth for a leading EU GMP cannabis manufacturer. This revenue-generating role focuses on identifying and securing new international wholesale accounts, negotiating agreements, and maximizing manufacturing capacity.

As a Customer Financial Services Specialist, you will lead process improvements, ensure quality in operational workflows, and drive system innovation to optimize internal stakeholders and vendor performance. You will collaborate with BPO vendors, oversee process implementations, and support Revenue Services operations.

Ardan Labs seeks a Mid to Senior Golang Engineer with 5+ years of experience, including 3+ years in Golang. Responsibilities include developing, testing, and maintaining Go applications, troubleshooting production issues, and contributing to deployment processes. Strong expertise in production-level troubleshooting, microservices architecture, and distributed systems is required.

Leads the design, development, and maintenance of BI reporting solutions, ensuring high performance and scalability. Collaborates with stakeholders to gather reporting requirements and translate them into actionable insights. Manages the BI reporting framework, ensuring data accuracy and security. Mentors and guides a team of BI analysts. Troubleshoots and resolves complex BI reporting issues. Drives continuous improvement initiatives in BI reporting.

Data Platform Engineer will design, build, and scale the company's data platform. Responsibilities include developing data models, ensuring data quality, and collaborating with teams to translate business requirements into data-driven solutions.

Mushroom Compadres seeks a Community & Creative Lead to own and grow Instagram and TikTok presence. Responsibilities include developing and executing organic content, running influencer collaborations, and supporting the newsletter. Requires experience managing social media for brands, strong copywriting skills, and a keen sense of cultural trends.

Electrical Design Engineer needed for Data Center projects. Designs and develops electrical systems including power distribution, grounding, lighting, and standby power. Creates electrical schematics, performs power system analysis, and coordinates with multidisciplinary teams. Requires 3+ years of experience (Junior), 5+ years (Intermediate), or 8+ years (Senior) with proficiency in ETAP, EPLAN, Revit, and DIALux. Strong knowledge of electrical codes and standards is essential.