freelance English-speaking jobs in Covilhã

Experienced Portuguese Language Tutor to deliver interactive online training sessions. Teach Portuguese fundamentals and advanced concepts (CEFR A1-B2/C1) and guide learners in developing fluency.

Senior Mobile Engineer will architect and build performant Android and/or iOS apps integrating with real-time communication systems. Responsibilities include optimizing the full mobile lifecycle, collaborating cross-functionally, and acting as a mobile domain expert. Deep hands-on experience in native mobile development (Kotlin or Swift) and real-time systems is required.

Golang Engineers (Senior, Architect, Staff/Principal levels) needed for a greenfield fintech project. Build high-load, distributed systems (15K+ tps) with Go, microservices, and technologies like PostgreSQL, Redis, Kafka, gRPC, Docker, Kubernetes. 4+ years Go experience, microservices architecture, data pipelines, and distributed systems required.

Buyer manages and supports purchasing and procurement objectives, optimizing supply chain and cost for the hotel network. Responsibilities include category management, supplier relations, project procurement, logistics, and internal support. Requires 3+ years experience, a Master's in Supply Chain Management, and proficiency in Spanish and English.

Supports team operations, including logistics, inventory management, and administrative tasks. Assists with recruitment, onboarding, and internal communications. Contributes to strategic decision-making through data analysis and presentation preparation.

The Harvey Law Group seeks a Paralegal in Lisbon, Portugal to support immigration cases. Responsibilities include document preparation, application processing, client communication, and participation in file reviews and training. Candidates must be legally authorized to work in Portugal, possess advanced English proficiency, and have a legal background.

Electrical Package Manager needed for data center construction in Portugal. Manage electrical systems from design to commissioning, oversee site safety, and collaborate with project stakeholders. Requires relevant electrical qualification, project management experience, and knowledge of health & safety.

Quality Specialist ensures cGMP compliance across all project and product activities. Supports the implementation and continuous improvement of the Quality Management System (QMS). Works closely with cross-functional teams and provides hands-on quality support on the manufacturing floor.

Experienced Android Developer to design and evolve the architecture of a mobility application. Collaborate with architects, mentor developers, and ensure performance, maintainability, and scalability. Requires a degree in Computer Science or equivalent, 3+ years software engineering, and 4+ years Android development experience.

The Sales Development Specialist will identify market opportunities, develop customer relationships, and sell shipping and logistics products and services. The role involves managing a customer portfolio, advising on transport modalities, and participating in commercial events.

Design and develop mechanical solutions for complex machines and systems. Collaborate with engineers, project managers, and clients to translate concepts into robust designs.

Lead the development and optimization of bio-based, biocompatible adhesive materials for medical applications. Design, synthesize, and characterize adhesives, perform testing, and collaborate with multidisciplinary teams.

Linguist to support AI training and content creation. Strong academic background in linguistics required. Responsibilities include creating linguistic content, resolving ambiguity and bias issues, and annotating datasets. Experience with computational linguistics, corpus analysis, or LLM training is a plus.

Wellness professional to introduce and support individuals through online personal development programs. Outcome-based remuneration for remote role.

Paid Media Manager to own performance acquisition across Meta Ads and Google Ads for a D2C eCommerce start-up. Manage budgets, targeting, bidding, creative testing, and scaling. Ensure accurate tracking and build performance reports. 3+ years of experience in paid media/performance marketing required.

English-speaking Cold Calling Specialist needed to connect with prospects, qualify leads, and book meetings. Proven cold calling experience and strong communication skills required.

Senior Python/AI Backend Developer needed to design, develop, and maintain robust backend services for AI assistants. Requires 3+ years of Python backend web application development experience, strong FastAPI and REST API skills, and familiarity with AI integration frameworks.

Data Engineer needed for Space unit. Design, develop, and maintain microservices and data pipelines in .NET and Python. Experience with Docker, Kubernetes, gRPC, Entity Framework, PostgreSQL, and Apache Airflow required.

Backend Software Developer needed for a new Lisbon office. Develop and maintain APIs for data products, participate in code architecture discussions, and contribute to code improvement. 3+ years of API development experience (Python, Go, PHP, or Rust) and familiarity with cloud tools (AWS) are required.

Real Estate Agents sought to join a growing team in the Algarve. Responsibilities include securing listings, managing sales and rentals, conducting viewings, and building client relationships. Experience is an advantage, fluency in English and Portuguese is required.