freelance English-speaking jobs in Guimarães

Freelance Interior Designer / Project Manager needed to collaborate on interior design projects from concept to completion. Must have experience in residential design, renovations, and project coordination. Fluency in Portuguese, Spanish, and English is a plus.

We are seeking a detail-oriented Stock Controller and Delivery Driver to manage inventory, handle procurement, and transport prepared food between our central kitchen and satellite locations.

Leads marketing and GTM strategy across four target markets, including brand development, content creation, and PR. Manages founding-member sales pipeline, from initial contact to closing deals. Requires 7-15 years of experience in luxury hospitality, membership clubs, or similar industries. Must be AI-native and comfortable with Portuguese, Brazilian, UK, and Gulf cultural codes.

As they scale our programmatic capabilities to the next level, they are looking for an exceptional Head of Programmatic to join their team. This is a senior leadership position with full ownership of our programmatic advertising function — spanning strategy, technology, team development, and commercial performance.

Senior, autonomous hire responsible for the design, implementation, and operation of an institutional-grade on-chain treasury across multiple legal entities and jurisdictions. Owns the day-to-day integrity and security of the treasury, including incident response, wallet architecture, and operational processes. Requires deep experience operating a crypto treasury under self-custody and fluency with Gnosis Safe and Zodiac modules.

KCS IT seeks a Mid-Senior Python Developer with a degree in a related field and 3+ years of experience. The ideal candidate will have strong Python skills, experience with web frameworks (Django, Flask, FastAPI), and front-end frameworks (React or Angular). Fluency in English and Portuguese is required.

Provide customer support for ByteDance e-commerce products and services via email, chat, and phone. Handle inquiries professionally, ensuring excellent customer experience.

Connectivity & Lead Network Engineer will drive network planning and optimization initiatives across 2G, 3G, 4G, and 5G networks. Responsibilities include leading optimization activities, validating technical performance of telecom solutions, and mentoring engineers.

Develop new products and improve existing processes in a formulation lab. Requires a Bachelor's or Master's degree in Chemical Engineering or equivalent, 2+ years of formulation experience, and knowledge of chemical analysis techniques.

Mechanical Site Supervisor to oversee mechanical works on a Data Center project in Sines. Ensures compliance with specifications, drawings, and standards. Coordinates with subcontractors and other disciplines. Monitors progress, quality, safety, and cost. Reports deviations, issues, and risks. Requires a Mechanical Engineering background, proficiency in English, and experience in mechanical systems.

Provide customer support via phone, email, and live chat in Polish and English. Resolve customer inquiries, troubleshoot issues, and document interactions.

Black Cat Cinema seeks a Comms & Marketing Manager to lead communication across social media, newsletters, and marketing channels. The role involves creating engaging content, managing community interaction, and collaborating with creative teams. Fluency in Portuguese and English is required.

DevOps / Cloud Infrastructure Engineer to design, build, and maintain scalable production systems. Experience with Kubernetes, AWS, Docker, and CI/CD pipelines required.

Product Development Manager - Europe will drive technical support and product positioning across Europe, partnering with customers, R&D, and commercial leaders to identify new business opportunities and shape sustainable packaging solutions.

Define, set up, and maintain hardware test benches using Vector Informatik technology. Perform fault analysis, calibration, and optimization of test benches. Develop test adapters for eBike components.

Commission mechanical and process systems at power plant construction sites globally. Ensure commissioning activities meet budget, time, and quality targets while adhering to EHS requirements. Collaborate with internal and external teams.

We are seeking a Project Manager with strong Content Management capabilities to support and coordinate the marketing function. This role is responsible for managing the marketing calendar, campaign planning, asset production timelines, and cross-department coordination. The ideal candidate combines operational rigor with editorial precision and has a strong understanding of trading platforms and digital products.

SQL Server Database Administrator needed to ensure performance, availability, and reliability of databases within a complex ecosystem. Responsibilities include query optimization, performance issue resolution, backup/recovery management, and data consistency across platforms. Requires 5+ years of SQL Server experience, T-SQL expertise, and experience with HA/DR strategies.

FullStack Developer (Go + React) needed for migration of .NET applications to React (frontend) and Golang (backend). Develop and maintain scalable applications, collaborate in Agile environment, and ensure code quality. Requires +4 years experience with GoLang & React, fullstack development experience, and fluency in English.

Financial Analyst (Accounts Payable) will manage purchase orders, coordinate with vendors, process invoices, and reconcile vendor statements. Requires a Bachelor's Degree in Finance/Accountancy/Business, fluency in English, and experience in Accounts Payable or Purchase to Pay.