freelance English-speaking jobs in Leiria District

Partner Account Manager will own and grow relationships with Business Partners in Portugal's Small Market segment. Responsibilities include driving partner performance, accelerating revenue growth, and ensuring partners are aligned with Sage's strategy. Must have experience managing Business Partners, resellers, or indirect sales channels and B2B sales experience within SMB environments.

Provide German-speaking customer support via phone, email, and chat for a global brand. Assist with product questions, orders, and general inquiries. Collaborate with colleagues to resolve cases and ensure customer satisfaction.

Exceptional temporary travel nanny needed for 5-month-old infant. Contract runs June 15 - August 30, 2026, starting in Puerto Rico and transitioning to Portugal. Schedule is 7am-8pm, Monday-Friday, plus one weekend day. Must have 6+ years of professional nanny experience with infants, be comfortable with travel, and possess excellent communication and organizational skills.

Full Stack Developer with 3-6 years of experience in PHP and React to develop and maintain web applications, design APIs, and collaborate in Agile environments.

Junior Trade Operations Analyst supports trade allocation, clearing, and monitoring. Requires strong communication, organizational, and problem-solving skills. Knowledge of Microsoft Office Suite and data management tools is beneficial.

Senior Java Developer with 8+ years of experience in designing and building enterprise applications. Requires hands-on experience with Large Language Models (LLMs), AI orchestration frameworks, and API integration. Strong problem-solving skills and experience in Agile environments are essential.

Siemens seeks a motivated trainee for a summer internship in IT communication. The intern will support content creation, digital publishing, and communication tasks. Applicants should be studying or have recently graduated in a related field with strong communication skills in English.

Quality & Training Specialist will monitor and evaluate customer interactions, ensuring quality and compliance. The role also involves designing and delivering training programs for Customer Service Specialists.

Staff Backend Engineer will design, build, and maintain scalable backend services for Pleo's credit products. Responsibilities include owning service architecture, APIs, and data models, building integrations, and collaborating with teams to deliver end-to-end credit flows.

Senior Backend Developer will lead the development, testing, and maintenance of backend solutions and internal tools for a connected vehicle data product. Responsibilities include designing and creating products, prototypes, and MVPs for near-vehicle services, architecting and managing cloud-native microservices, and providing expert advice on backend and tool development. Requires a Bachelor's degree in a related field, minimum 5 years of experience, and expertise in Java/Kotlin, Spring Boot, cloud services (AWS), CI/CD, and microservices architecture.

Senior Software Developer will develop and support .NET/C# projects, functions, and client work. Responsibilities include analyzing, designing, developing, implementing, maintaining, and troubleshooting software applications. Requires 6+ years of web & software development experience, ASP.NET Core framework expertise, and proficiency in C#, SQL, and REST APIs.

AI Engineer to design and develop Generative AI solutions. Requires strong Python skills, experience building scalable APIs and systems, and hands-on AI/Generative AI experience.

The Brand Activation Manager – Centrum and Digestive supports the strategic development and execution of brand plans for assigned brands, ensuring strong in-market activation and delivery of business objectives. The role translates global and regional direction into effective local marketing plans and execution across all elements of the marketing mix.

Senior Accounting Compliance & Reporting professional for Financial Services clients. Provides accounting, tax compliance, and reporting services, develops accounting solutions, and supports regulatory requirements. Requires a degree in Accounting, Management, Economics, Finance, 3+ years of experience, IFRS knowledge, and fluency in Portuguese and English.

Senior Mobile Engineer will transition a core mobile platform from native environments to Flutter/Dart. Responsibilities include maintaining the existing iOS app, architecting and developing cross-platform features, and collaborating with teams to define requirements and deliver features.

Managed Service Manager to oversee service delivery, resource planning, and contractor activities. Requires experience managing medium/large teams (15+) using Agile methodologies. Must be a resident of Braga and available in the office Mondays and Tuesdays. Cloud (AWS) experience is a plus.

Senior Java Developer to lead development of IP phone configuration server. Requires SIP telephony, IP phone configuration, and server technologies expertise. Strong analytical, problem-solving, and communication skills needed.

Associate Analytics Strategy Lead will shape clinical study strategies, translate data into actionable insights, and present recommendations to clients and internal stakeholders.

Provide technical support for OT systems in manufacturing environments, including configuration, troubleshooting, and maintenance of industrial networks. Support and maintain applications on production lines, diagnose issues, and collaborate with various teams.

Develops and supports web applications and APIs in GoLang for AI and Machine Learning solutions. Analyzes, designs, and coordinates development based on business requirements. Collaborates with data scientists and developers.