freelance English-speaking jobs in Castelo Branco

Back-end Developer with experience in Camunda or equivalent BPM technologies needed. Develop and maintain back-end services, implement business logic and workflows, and integrate with databases and core systems. Collaborate with teams to ensure quality, performance, and scalability of solutions.

Senior Product Manager will lead the development and scale of the Remote Build product, focusing on AI-enabled connectors, custom applications, and managed services. Responsibilities include owning demand signals and unit economics, managing standard and custom integrations, and developing managed services. Requires fluency in AI/agents, proficiency in Cursor and/or Claude Code, and senior-level product management experience on platform, API, or developer-facing products.

Junior Systems Analyst to support IT team in maintaining and improving IT services. Responsibilities include analyzing system requirements, documenting processes, and supporting ITIL implementation. Requires a Bachelor's degree in a related field, basic ITIL knowledge, and strong analytical and communication skills. Printer and scanner issue solving experience is required.

Lead the development of AI and machine-learning solutions for complex business challenges. Leverage deep learning, reinforcement learning, and AI to uncover insights and improve business performance. Mentor other data scientists, shape QuantumBlack's R&D roadmap, and identify high-potential machine-learning initiatives. Collaborate with data engineers, machine learning engineers, and designers to build end-to-end analytics solutions.

SAP ABAP Developer to design, develop, test, and support SAP applications across ECC and S/4HANA. Collaborate with global stakeholders, build integrations, and contribute to system performance and innovation.

Agile Coach / Scrum Master Community Lead to promote Agile methodologies and support Scrum/Agile teams. Define, implement, and improve Agile best practices. Coach teams using adapted methodologies and tools. Deliver Agile training sessions and lead the Scrum Masters community.

FO SCM Consultant to design and implement business solutions, with a focus on Supply Chain, Retail, and Manufacturing. Requires 3+ years of experience in ERP solutions, AGILE methodology, and strong communication skills.

Technical Consulting Engineer will serve as a primary technical point of contact, resolving complex technical issues across network, application, and cloud environments.

Site Operations Specialist maintains day-to-day operations and performs O&M tasks for cable stations and POPs. Responsibilities include installation, troubleshooting, circuit provisioning, and 24/7 on-call support.

Software Engineer with +5 years of .NET development experience (C#, .NET Core, ASP.NET, Entity Framework) and experience with AWS/Azure, microservices, and containerization tools (Docker, Kubernetes). Proficiency in English (B2 level) required. Hybrid work model (3 days/week in Porto) and occasional business trips. Must be based in Portugal with Portuguese or EU citizenship or a valid Portuguese work permit.

Senior Unity Developer needed to contribute to a successful free-to-play fishing simulator. Develop gameplay logic, support existing features, and optimize performance. Requires 5+ years programming experience, 3+ years in Unity, strong .NET Framework and C# skills, and understanding of design patterns.

This role drives operational excellence across design and product initiatives. The Digital Experience Manager will transform initiatives into plans, remove blockers, and facilitate collaboration between teams.

Application & Systems Integration Engineer will develop flexible thin film solar cells, conduct mechanical testing, and integrate solar cells into power systems.

AI Engineer needed to collaborate on AI opportunities, develop and evaluate proof-of-concepts, and build LLM-based applications. Requires experience in AI/ML engineering, strong understanding of machine learning, deep learning, and LLMs, and proficiency in Python.

Senior OutSystems Developer needed for a 3-month project building a digital corporate client onboarding solution for an international bank. Responsibilities include designing and implementing OutSystems applications, leading data modeling, and ensuring integrations with existing banking systems and document signing platforms. Requires 5+ years of software development experience, including 3+ years with OutSystems (OS11 and/or ODC).

Principal Software Engineer focused on Quality Engineering will design and implement automated testing frameworks, build test infrastructure, and embed quality gates into CI/CD pipelines.

Full-Stack Web Developer will enhance the headless frontend of Aftermarket Enterprise Platform, collaborating with teams to deliver B2B Ecommerce functionality. Requires 7+ years of experience, proficiency in Vue.js, BEM, and Agile methodologies, and fluency in English.

Senior QA Automation Engineer to design, implement, and maintain automated tests for Hospitality Property Management System applications built with Java and Angular.

Provide top-tier travel support via chat, calls, and emails. Handle bookings and guide customers on the Navan platform. Must have 5+ years of travel consulting experience, fluency in English and Italian, and experience with GDS systems.

Granter is seeking an AI Automation Specialist to build and implement AI-powered automations across departments. The ideal candidate is "AI-pilled," technically proficient, and possesses strong product and business acumen.