freelance English-speaking jobs in Guimarães

The Junior Service & Project Delivery Manager ensures the effective delivery of IT services to clients, maintaining performance, reliability, and customer satisfaction. This role manages end-to-end service delivery, leads technical teams, and oversees change management processes.

Business Analyst with 3+ years of experience in requirements analysis, functional specifications, and test documentation. Strong communication skills and experience with Agile methodologies required.

Lead Software Development Engineer in Test (SDET) to design, build, and implement automation frameworks across APIs, web applications, and data platforms.

Portuguese-speaking FX Retention Agent needed with at least 1 year of experience. Must be a confident communicator and skilled closer.

Senior Full Stack Engineer to design, implement, and improve a high-throughput payments platform. Responsibilities include developing backend services, frontend components, and third-party integrations. Requires 4+ years of experience with APIs, transactional backend services, and modern frontend applications. Experience with Go, TypeScript, PHP, and payment provider integrations is essential.

This HR Communication Trainee role supports internal and external communication strategies, including content creation, channel management, and employer branding initiatives. The position requires strong communication, collaboration, and organizational skills.

Lead Mechanical Engineer to design rugged enclosures for antennas, sensors, and electronics. Designs will utilize plastics and aluminum, incorporate IP-rated sealing systems, and withstand harsh environments. Requires expertise in CAD, simulation, and prototyping.

Smart Contract Engineer to implement novel economic systems on Ethereum. Collaborate with auditors, maintain test economies, and contribute to the tech community. Evaluate DeFi protocols and security best practices.

Pricing Specialist will drive pricing transformation across the organization. Provide guidance on pricing matters, monitor pricing trends, and support pricing data integrity. Requires advanced analytical capabilities, experience with pricing software, and strong communication skills.

Danish speaker residing in Braga sought for a remote customer support role. Fluent Danish (C2) and good English (B2) required. Permanent contract with a base salary of €1,500 per month plus performance bonus and meal allowance.

Native-level Spanish (LATAM) Computational Linguist needed for a 12-month project. Assess speech quality, categorize audio, and collaborate with scientists. Requires Python, command-line proficiency, and strong analytical skills.

Python Developer sought for dynamic team. Experience in web solutions development, API REST, performance optimization, and process automation required. Must have proficiency in version control tools (Git, Gitlab, SVN) and English communication.

Optimize and manage Google Ads campaigns to improve performance and ROI. Analyze campaign results, monitor KPIs, and prepare performance reports.

AIVM seeks a high-credibility Web3 CEO to lead its AI-native Layer-1 blockchain. Responsibilities include owning the strategy, fundraising, product direction, ecosystem growth, and public representation of AIVM. The CEO will build and manage a global team, ensuring the blockchain's adoption and revenue generation. Must have experience leading blockchain or infrastructure-scale crypto projects and a proven track record of raising capital from VCs.

Develop, evaluate, and deploy novel ML/AI models for intelligent automation and customer service solutions. Research, prototype, and design experiments to improve model accuracy and robustness. Collaborate with engineers and product managers to translate research into solutions.

The Associate Consultant, Indirect Tax supports global clients with indirect tax services, focusing on compliance and credit claim preparation. Responsibilities include research, drafting, database reconciliation, and calculations. Administrative support and practice growth contributions are also expected.

Junior Key Account Manager for rare diseases project in healthcare. Promote disease awareness, support early diagnosis initiatives, and deliver scientific presentations to medical audiences. Previous experience as a Medical Representative and hospital visits required.

Senior Software Engineer will build and maintain production systems at scale, focusing on marketing funnels, onboarding, KYC, and first-funding experiences across web and mobile platforms. Collaborate with product managers, designers, and analysts to identify growth opportunities and turn them into data-driven engineering solutions.

Lead Salesforce Developer needed for hybrid role in Lisbon. Requires 8+ years of Salesforce development experience, proficiency in Apex, Visualforce, Lightning components, and integrations. Must have strong leadership skills and English proficiency (B2 level or higher).

Manages assigned IT tasks, ensuring zero breakdowns and adherence to organizational policies. Supports third-party vendors and aids in project progress monitoring. Resolves technical issues, manages the IT helpdesk, and provides support to the IT team.