freelance English-speaking jobs in Guimarães

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.

Develop and maintain COBOL Batch and CICS applications. Support modernization and DevOps initiatives on mainframe systems. Ensure quality, performance, and reliability.

Manage a portfolio of existing and new customers, building relationships and driving revenue growth. Identify upsell and cross-sell opportunities, introduce new features, and support customer expansion.

Software Engineer to design, develop, and build applications in a Scrum Agile environment. Responsibilities include coding, debugging, reviewing code, collaborating with engineers and subject-matter experts, and fixing security vulnerabilities.

Project Manager with +5 years of experience in IT environments required. Must have a Bachelor's degree in a related field, strong understanding of SDLC, CI/CD, and DevOps. Proven ability to work with engineering teams and stakeholders. Fluency in French and good English skills are mandatory.

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.

The Quality and Information Security Technician analyzes and treats complaints and requests for clarification, implements and monitors corrective actions, and supports the maintenance of management systems certifications (ISO 27001, 27017, 27018, 22301, 2000 and 9001). The role collaborates in planning and conducting internal audits and supports other teams to maintain process effectiveness.

Design, develop, and maintain cloud-based applications using Azure services. Implement Azure Functions, Service Bus, and Azure Data Factory. Write C#/.NET code and execute tests to ensure code quality. Collaborate with teams to define, design, and ship features. Troubleshoot and resolve issues across development, test, and production.

Senior Java Engineer to design, build, and maintain scalable backend services for a key client. Requires 5+ years of Java experience, cloud-native architectures (AWS preferred), Spring Boot, and relational/NoSQL databases.

Mercor seeks a Business Owner/Founder to review and assess domain-specific documents, provide feedback, and contribute to evaluation projects. Requires a Bachelor's degree, 2+ years of relevant experience, and proficiency in Excel, PowerPoint, and Word.

Tech Lead with 3+ years experience leading full-stack development. Expertise in Java, Spring Boot, React/Angular, and DevOps tools like Kubernetes and Jenkins. Strong database knowledge (Oracle, SQL, PL/SQL). Experience with Microservices, CQRS, and Hexagonal Architecture.

Develops and implements automation/robot programs for existing and new production equipment. Verifies, optimizes, and tests concepts. Plans program launches and provides training. Requires 3 years of relevant experience in automation, electrics, and mechanics. Knowledge of Excel and SAP is necessary.

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.

Software Development Engineer in Test to build and scale test automation frameworks, develop Python-based automation, and integrate testing into CI/CD pipelines. Must have strong Python coding skills, API testing experience, and SQL knowledge.

Software Developer needed for a hybrid project. Requires advanced Linux RedHat, Shell Scripting, MySQL, CI/CD tools, and file transfer protocols.

Data Warehouse & BI Engineer will design, develop, and optimize data architecture. Responsibilities include translating business needs into data models, implementing ETL processes, and ensuring data quality.

Lead Generator to own and scale paid lead generation campaigns across multiple channels. Responsible for campaign strategy, creative briefing, launch, optimization, and reporting. Must have 2+ years of experience running paid lead generation campaigns (Meta Ads and Google Ads minimum) and a proven track record of hitting CPL and lead quality targets.

NTU International seeks Trade Facilitation Experts for a GIZ project supporting investment climate reforms in partner countries. Experts will advise on customs, border procedures, and trade systems, and develop trade policy recommendations.

Job Description We are looking for a Pricing Analyst to join our Marketing team in Marketing&Sales. The successful candidate will provide relevant information on prices, conditions, margins, in accordance with corporate policy in the division and channel under your responsibility.

Experienced Voice Core Engineer needed for 9-month contract to design, integrate, and deliver Voice Core solutions across CS, IMS, and 5G domains.