freelance English-speaking jobs in Valongo

Field Service Engineer responsible for repair and maintenance of medical equipment. Troubleshoots complex problems, communicates with customers, and assists in sales visits and training. Requires technical skills, strong customer service, and fluency in English.

Systems Analyst with 3-5 years of experience analyzing systems, identifying improvements, and translating business requirements into technical specifications.

Analog/Mixed-Signal Design Engineer to design high-performance transistor level circuits for analog-to-digital and digital-to-analog converters. Requires 2+ years experience in high-performance analog or mixed-signal IC development and familiarity with advanced CMOS processes. Must have experience with silicon evaluation, Cadence tools, and layout parasitic extraction.

The Market Funnel Analyst monitors, analyzes, and optimizes marketing funnel performance in the Portuguese market. This role tracks KPIs, identifies trends, and provides data-driven insights to support decision-making. The analyst collaborates with cross-functional teams to implement optimization actions and improve funnel efficiency.

ServiceDesk Engineer L2 will handle and troubleshoot technical requests, analyze issues, and standardize solutions. Requires strong troubleshooting, problem-solving, and process management skills. Experience with Jira, logs and monitoring tools, and automation tools is necessary.

Senior/Lead Frontend Developer to own frontend architecture and technical strategy. Build scalable web applications, ensure high quality UI/UX, and lead refactoring efforts. Requires 5+ years of frontend development experience, strong Angular skills, and knowledge of JavaScript/TypeScript, HTML, CSS.

Software Engineer will work on mission-critical products, optimizing cross-border logistics, architecting B2B systems, and developing service infrastructure. You will have a deep understanding of the full stack and be comfortable using AI tools.

.NET Developer needed for international energy project. Experience with .NET 8, ASP.NET Web API, WCF, SQL Server, Oracle, RabbitMQ, and ORMs required. Familiarity with DDD, Clean Architecture, and testing frameworks is a plus.

The Manager C&B (Specialist) for the Global Delivery Unit collaborates with Corporate HR and HR leaders to provide expertise on Rewards policies and programs. This role involves managing pay review and benefit programs, driving policy alignment across locations, and providing compensation expertise on program design and implementation. The Manager will also advise the HR team on Compensation & Benefits issues, lead the Annual Review Cycle, and stay abreast of regulatory changes impacting compensation practices.

Growin seeks a .NET Developer with experience in creating and optimizing web-based Microsoft apps, ASP.NET, Entity Framework, Core, and Web API. Must have SQL Server skills and proficiency in English and/or French.

The Senior IT Project Manager delivers a portfolio of IT and business change projects, ensuring alignment with business strategy and governance standards. Responsibilities include defining project scope, managing cross-functional teams, and providing clear reporting on progress, risks, and financials.

Senior Research Analyst will conduct primary and secondary research, analyze data, and synthesize insights for clients. Requires experience in research methodologies, data analysis, and strong communication skills.

Manages and maintains IT operational applications and systems for cruise ships and headquarters. Requires experience with MXP, PBX, IPTV, and various software programs. Must have strong troubleshooting and problem-solving skills.

Senior Product Designer for the Domains & Email team will create solutions for a critical area of growth within Squarespace. Responsibilities include designing usable concepts, leading work from discovery through delivery, and collaborating with cross-functional partners.

Customer Service Assistant positions available for Universidade Lusófona or IPLUSO students. Provide telephone, in-person, and email customer service, respond to requests, and perform administrative tasks. Must have strong communication skills, be responsible and punctual, and have basic computer skills.

UX/UI Designer with mid-level experience in design and front-end development sought to design and implement web and mobile applications.

AI Infrastructure/ML Platform Engineer needed with 5+ years of experience in AI/ML production environments. Strong Kubernetes, GPU workloads, and AI inference optimization skills required. Experience with LLMs, Computer Vision, and real-time AI systems is essential. Knowledge of Terraform, GitOps, Linux, networking, and cloud platforms (AWS, Azure, or GCP) is also needed.

Expert Business Development Management role within a renewable energy company. Manage project pipelines, budgets, and progress across assigned regions. Analyze market trends, policy changes, and financial data.

Develop AI-driven applications on SAP BTP, leveraging SAP AI Core and AI Foundation services. Integrate Generative AI into core business processes and maximize productivity using AI coding assistants. Design data pipelines, manage Git workflows, and develop modular, reusable components in Angular or SAP UI5.

Build and operate streaming and batch data pipelines for market, trading, and portfolio data. Design and evolve the Keyrock Data Platform, including data contracts, schema evolution, and a lakehouse architecture. Develop derived analytics and ensure observability, cost, and performance.