freelance English-speaking jobs in Castelo Branco

Design and implement AI-powered solutions to enhance the SDLC and developer productivity. This hands-on role involves promoting AI adoption across engineering teams and improving processes using AI technologies.

Seeking Embedded Systems Research Engineers for a collaborative lab focused on cyberphysical systems and cybersecurity. Responsibilities include FPGA development, C/C++ programming, and hardware/software integration.

Passionate fashion enthusiast to support back-of-house operations and brand presentation. Responsibilities include inventory control, processing deliveries, and maintaining stock while supporting customer experience. Requires organization and attention to detail.

Junior Accountant role assisting with financial statement preparation, account reconciliation, and data analysis. Requires previous accounting experience, knowledge of accounting principles, and proficiency in Excel.

Lead a department, driving excellent customer experiences and operational excellence. Responsibilities include team motivation, sales data analysis, and ensuring brand standards. Requires retail experience, strong communication, and Portuguese/English knowledge.

Senior Commercial Sales Manager to represent the Grid Technologies portfolio. Responsibilities include customer inquiry response, negotiation support, risk analysis, and market analysis within Europe's energy transition. Requires relevant sales experience and business-fluent English.

Dutch-speaking Tier 1 Technical Support Specialist needed for an eMobility call center. Provide technical assistance for EV charging stations via phone, email, or chat. Requires fluency in Dutch and English.

Affiliate Manager for iGaming. Develop partnership proposals, negotiate terms, and support affiliates. Analyze traffic and key metrics to optimize strategy and drive customer acquisition. Requires 1.5+ years in iGaming affiliate marketing.

Contracts & Invoicing Specialist needed for real estate operations. Responsibilities include issuing invoices, managing tenant accounts, and interpreting lease data in SAP Real Estate. Requires strong Excel skills and fluent English.

Seeking an After-Sales Support Intern to provide technical advice and manage product documentation. This role involves managing customer inquiries to ensure satisfaction.

Annotate images and videos of people performing physical exercises using internal tooling. Tasks include labeling, quality-checking, and applying structured guidelines consistently across high volumes.

Responsible for managing user access, monitoring service quality and SLAs, maintaining documentation, and driving continuous service improvement within an engineering company.

Customer Service Representative to provide guidance on Homeowners’ products via calls or emails. Requires high Dutch and good English skills, along with strong communication and problem-solving abilities.

Lead multiple engineering teams as Director of Software Engineering, owning delivery, technical health, and people development. Drive AI-native ways of working while solving ambiguous, systemic problems. Requires 5+ years in engineering management.

Generative AI Product Engineer to design and optimize production-ready AI capabilities using LLMs. Focus on RAG, prompt engineering, AI evaluation, and building enterprise-grade solutions. Requires 4+ years in AI Engineering and 18+ months in Generative AI.

Associate Consultant role for recent graduates or experienced professionals in the life sciences. Drive change by improving processes and data for clinical trials across medical devices, R&D, and regulatory affairs. Requires a Master's degree.

Field Service Specialist provides onsite and remote support for customers. Responsibilities include hardware/network troubleshooting, ticket management, and monitoring systems. Requires 3-5 years of support experience and technical skills in OS, networking, and hardware.

Lead data platform architecture and evolution, shaping data ingestion, modeling, and governance. Own data architecture, set technical direction, and build infrastructure on AWS using Terraform.

Design, develop, and maintain scalable, secure applications using Java/Spring and Angular. Lead code reviews, mentor junior developers, and collaborate with cross-functional teams.

Billing Agent requires German fluency to manage client documentation, resolve billing issues, and ensure monthly targets are met. Responsibilities include invoice validation, data entry, and supporting the commercial team.