freelance English-speaking jobs in Guimarães

Business Development Specialist to drive deals in the mobile Apps and healthcare market. Responsibilities include customer account management, building partnerships, and generating leads to close deals. Requires sales experience, fluency in Portuguese and English, and strong negotiation skills.

Cognizant seeks a Mid-Level Reverse Engineer to dissect Android applications, including those using obfuscation and anti-tampering techniques. Responsibilities include de-obfuscating applications, analyzing native code interfaces, and providing technical reports. Requires proven experience in Android application reverse engineering, Android development, or penetration testing. Solid understanding of Android security internals and experience with static and dynamic analysis techniques are essential.

Data Engineer to build and enhance digital services within Continental Tires. Responsibilities include maintaining cloud data platforms, developing batch/real-time pipelines, and ensuring data reliability. Requires a degree and 2+ years in data engineering with Java and SQL experience.

Financial Reporting Officer to support the preparation and analysis of financial, prudential, and statistical information for supervisory authorities. Requires a Master's degree and 2+ years of banking experience.

Marine Bioacoustician needed to join the AI team, overseeing acoustic and visual data labelling for Hydrotwin. Requires experience in fish/cetacean acoustics, annotation protocols, and supporting AI model development.

Internal Support Specialist needed to manage infrastructure, network, and Microsoft 365 administration. Requires 5+ years of IT support experience, IT purchasing knowledge, and mandatory English proficiency.

Senior Data Engineer to design, build, and scale the Data Platform. Responsibilities include developing data models, ensuring data quality, and collaborating with teams to translate business requirements into data-driven solutions. Requires 4+ years of experience in data architecture, modeling, database design, and data management. Proficiency in Python, SQL, and data governance principles is essential. Experience with technologies like Airflow, Clickhouse, MongoDB, Kafka, and Grafana is required.

Italian-speaking Sales Agents are needed for an international project in the mobility and roadside assistance sector. This full-time, on-site role in Lisbon requires fluent Italian and basic English. No prior experience is necessary.

Highly organized and proactive Executive Assistant Office Manager needed to support the CEO and ensure smooth firm operations. Responsibilities include executive support, office management, HR coordination, and financial administration. Requires excellent English and Portuguese.

Lead the Avinor Solution Center, ensuring roadmap delivery across scope, quality, budget, and timelines. Manage governance, stakeholder alignment, and risk. Requires 10+ years managing complex IT programs and fluency in English.

Senior Project Coordinator supports transformation and business improvement initiatives. Responsibilities include planning, coordinating, and executing projects, managing risks, and maintaining documentation. Requires 5+ years of relevant experience and strong communication skills.

Senior Specialty Leasing & Marketing Coordinator drives revenue and footfall by maximizing leasing opportunities and coordinating marketing strategy across retail portfolios. Requires 5+ years' experience in retail real estate, strong negotiation, and analytical skills.

Drive commercial performance across global business units for a leading industrial manufacturer. Focus on sales effectiveness, pricing, profitability, and commercial analytics. Requires 5-10 years in Commercial Excellence with strong analytical skills and CRM/BI tool experience.

Senior Executive Assistant to the CEO requires exceptional organizational and time-management skills. Responsibilities include managing complex calendars, scheduling, travel, and preparing briefings for the CEO. Must maintain strict confidentiality and possess excellent English communication skills.

Drive the end-to-end delivery of large-scale digital products and technology initiatives across multiple Agile teams. Manage dependencies, risks, and stakeholder alignment in a fast-paced environment.

Quality Assurance Officer role maintaining the NB 1639 medical device internal quality management system. Responsibilities include document maintenance under MDD, MDR, and IVDR schemes. Requires strong organizational skills and fluent English.

Technical / Functional Analyst needed to bridge business and technology, translating requirements into technical solutions. Manage incidents, support deliveries, and ensure continuous evolution of interconnected business systems. Requires 4+ years of experience in technical analysis, systems integration, or similar IT roles. Strong communication and stakeholder management skills are essential. Fluent Portuguese and English required.

Seeking a proactive Student Recruitment & Marketing Officer to support admissions and promote the school's offering. Responsibilities include managing family enquiries, coordinating events, and building external partnerships. Minimum 5 years' experience in a customer-facing role is required.

Java Fullstack Developer needed with 4+ years of Java experience. Skills include REST/JSON APIs, JPA/Hibernate, Angular/AngularJS, Spring/Spring Boot, and SQL. Familiarity with Git, Jenkins, and Artifactory is required.

Dutch Technical Customer Success Manager needed. Requires native or fluent Dutch and minimum 2 years of B2B Sales experience. Responsibilities include managing customer portfolios and driving sales of cloud solutions.