freelance English-speaking jobs in Covilhã

Two Post-Doctoral Research Fellowships are available within the project "Sharp inequalities and critical problems in Harmonic Analysis, Dispersive and Elliptic equations".

Sustainability Technician will coordinate sustainability activities, ensure compliance with regulations, and manage sustainability KPIs. Requires a Bachelor's degree in Environmental Engineering, fluency in Portuguese and English, and 2+ years of experience.

Senior Front-End Engineer to design, develop, and maintain high-performance applications using React and TypeScript. Ensure a seamless user experience by implementing best-in-class UI/UX practices. Collaborate with product and design teams to translate wireframes into functional UI. Contribute to the Front-End Engineering Chapter and mentor junior engineers. Requires 5+ years of front-end web development experience, with at least 2 years in a Senior role. Solid expertise in React and TypeScript, CSS, and experience with REST and GraphQL APIs. Strong command of front-end security principles and performance optimization. Professional proficiency in written and spoken English.

Lead and scale an integrated fiduciary and regulatory control framework for specialized strategic operations. Ensure high-growth initiatives meet fiduciary integrity and protection standards.

Lead the end-to-end delivery of AI and Large Language Model initiatives within a defined short-term project scope (6–12 months). Translate business objectives into structured roadmaps, sprint plans, and prioritized backlogs using Agile/SCRUM practices.

Engineering Manager to lead and coordinate a team, focusing on people management, delivery, recruiting, and team performance. Requires proven experience leading engineering teams, strong people management and communication skills, and a solid engineering foundation.

Norwegian-speaking Ad Sales Account Executive to acquire and manage Norwegian clients in Barcelona. Responsibilities include business development, consultative selling, full-cycle sales, and client onboarding. Requires 2+ years of sales experience, fluency in Norwegian and English, and knowledge of digital advertising.

Provides customer support for Kraken's crypto products, including trading, staking, and deposits/withdrawals. Responds to client inquiries via text and live support channels. Assists with testing new features and monitors technical issues.

Portuguese-speaking Sales Development Representative to support a vacation rental client. Focus on outbound calling, lead qualification, and transferring qualified leads to Sales Managers. Requires fluency in Portuguese and English, 3+ years of cold calling experience, and comfort with CRM systems.

The Pharmacy Group Field & Account Manager develops partnerships with pharmacy groups, manages joint business plans, and drives field activation to achieve sales objectives and improve in-store execution.

Staff Software Engineer will design and implement large-scale solutions for complex technical problems within the Snyk API and Web team. You will lead projects, mentor junior engineers, and communicate effectively with team members and leadership. Requires 10+ years of experience as a Software Engineer, experience with large-scale software systems design, proficiency in Go, TypeScript, or Python, and hands-on experience with Kubernetes or major cloud platforms.

Project Manager to develop and execute project plans, manage resources and budgets, and coordinate with internal and external teams. Requires proven international experience in IT consulting, strong communication skills, and proficiency in project management tools like MS Project and Azure DevOps. Bilingual in English and Portuguese required.

Lead the architectural design and integration of backend systems for Cloudflare's global support infrastructure. Partner with Product, Design, and Support Operations to define the technical roadmap and mentor engineers.

Review and moderate content to ensure compliance with community guidelines and policies. Evaluate and remove inappropriate material, flag violations, and promote a safe online environment.

Leads and drives L&D transformation initiatives, standardizing processes and collaborating with global teams to ensure alignment. Manages complex change agendas, tracks progress, and communicates updates to senior stakeholders. Partners with L&D leadership to translate strategic priorities into actionable plans and fosters cross-functional collaboration.

Support top-tier customers conducting security-focused code reviews using the Checkmarx Platform. Provide mitigation advice for identified vulnerabilities and create proofs-of-concept based on attack vectors. Conduct static code and software composition analysis on various development languages and open-source libraries.

Intertek seeks an Electrical & Instrumentation (E&I) Coordinator for an industrial project. The role involves coordinating electrical and instrumentation installation, assembly, and quality, ensuring compliance with standards and procedures. Responsibilities include managing technical documentation, coordinating with teams, and participating in audits.

Aircall seeks a Technical Support Specialist to provide remote support to customers globally. This role involves resolving complex technical and operational issues, collaborating with internal teams, and contributing to process improvements. The ideal candidate possesses strong communication, problem-solving, and technical skills, including knowledge of telephony routing, the OSI model, and CRM tools.

Defines AI solutions and technical direction, guiding build vs. buy decisions for AI workflows, ML foundations, and data engineering pipelines. Leads evaluation of emerging AI technologies and presents solutions to leadership and stakeholders. Connects technical solutions to business outcomes and ensures architecture decisions drive value.

Technical Project Manager to lead Telecom software integration projects. Coordinate design, integration, testing, and acceptance activities across Engineering, NPI, Care, and R&D teams. Manage risks, issues, reporting, and customer communication. Review technical documentation and collaborate with R&D for issue resolution.