freelance English-speaking jobs in Castelo Branco

Lead backend engineering for the Digital Experience Layer (DxL) domain. Define and enforce engineering standards, drive scalable platform architecture, and mentor engineers.

Senior Account Manager will lead strategic accounts, positioning OutSystems as the foundational platform for AI solutions. Responsibilities include developing AI strategies, advising C-suite leaders, and collaborating with cross-functional teams to ensure successful client adoption of AI capabilities.

Laboratory Technician needed for quality control of paint samples. Responsibilities include conducting tests, batch adjustments, raw material analysis, and report preparation. Previous laboratory experience is preferred. Strong organizational and communication skills required.

Lead engineering for Revolut's credit vertical, including loans, BNPL, and credit cards. Own end-to-end delivery, architecture, and quality control. Manage and scale distributed engineering teams across multiple locations. Partner with Product, Data, and Operations to define and execute the roadmap. Drive technical excellence, performance, and reliability.

Investment trainee to join the Investment/Portfolio Management team. Oversee portfolio performance, act as investor point of contact, and support reporting and communication. Perform financial analysis, modeling, valuations, and feasibility assessments.

Operations and Strategy Manager for a pre-commercial sustainable aquaculture facility. Coordinate facility operations, manage client relationships, and develop funding opportunities. Lead partnerships and represent the company at industry events.

Technical Business Analyst to translate business requirements into technical specifications and user stories. Collaborate with cross-functional Agile teams to design and deliver scalable technical solutions across enterprise applications, APIs, automation, and integrations. Experience in systems analysis, API specifications (REST/SOAP), and functional/technical documentation is required.

AI Designer (UI & Image Generation) needed for a hybrid role combining visual design expertise with advanced AI tool proficiency. Responsibilities include generating UI concepts, visual directions, and assets using AI, refining AI outputs, and ensuring visual consistency across products. Strong UI/UX principles, digital art skills, and experience with tools like Stable Diffusion, Flux, and Nano Banana are required.

Software Tester will design and implement test cases for manual and automated testing in complex software environments. Responsibilities include developing and maintaining automated tests, executing functional, regression, UI, and API tests, and collaborating with developers and stakeholders.

Senior C++ Developer to take technical ownership of a strategic automotive software project. Focus on stability, robustness, and regulatory extensions of in-vehicle software platforms for autonomous driving. Responsibilities include design, implementation, documentation, testing, and mentoring. Requires C++, Git/GitHub, and Python. Adaptive AutoSAR, Bazel, QNX, Some/IP, Diagnostic, Franca, DLT, and Scrum knowledge are a plus.

The Maintenance Manager ensures hotel upkeep, safety compliance, and team management. Responsibilities include budgeting, training, emergency planning, and overseeing daily operations. Requires technical expertise in building systems and experience managing high-standard facilities.

Customer Support Specialists are needed for international projects. Assist customers via email, chat, and phone while maintaining high service quality. Must have fluent Dutch and good English communication skills and at least 1 year of experience in customer support, sales support, or a contact center role.

Provides administrative support to a department or office. Duties include greeting visitors, answering calls, scheduling meetings, and managing office supplies. Requires a high school diploma or GED and up to 2 years of related experience.

Software Development & Maintenance Specialist needed for critical applications in OT environments. Requires experience in application maintenance, production support, and Agile methodologies. Strong technical skills in Python, Shell scripting, SQL, Java, and C# are essential.

Java Developer to build and maintain applications for trade limit and exposure management. Experience with Java 8-21, Spring Boot, and microservices required.

Provide B2B customer service in German and English, managing inquiries, orders, and service delivery. Collaborate with internal teams to resolve customer requests and streamline administrative tasks. May oversee team performance, analyze KPIs, and audit billing processes.

Support R&D Operational Readiness projects by analyzing data, identifying trends, and preparing reports. Collaborate with project managers and subject matter experts to improve product launches.

Electrical Supervisor needed for industrial Oil & Gas projects. Supervise electrical works during construction and testing, ensuring compliance with IFC documentation, quality standards, HSE requirements, and project schedules.

Experienced Business Travel Consultant needed to provide customer support, manage complex travel bookings, and ensure smooth travel experiences. Must be fluent in German and English, have GDS experience (Sabre, Amadeus, or Galileo), and be proficient in ticketing, reissues, cancellations, and PNR management.

Provide technical support to distribution partners, including product trials, evaluations, and presentations.