freelance English-speaking jobs in Castelo Branco

Customer Service Specialist to support the Nespresso brand. Responsibilities include engaging with customers via various channels, identifying needs, providing solutions, and managing complaints. Requires 1-2 years of customer service experience, fluency in English (C1 level), and proficiency in Microsoft Office.

Production & Quality Control Technician needed for footwear production. Monitor factories throughout industrialization, ensuring quality assurance and control. Collaborate with product development, suppliers, and internal teams. Analyze production processes and suggest improvements. Minimum 5 years experience in footwear production required. Fluent English, travel required.

Data Administrator needed for a multinational car auction company in Lisbon. Fluent English required, other European languages a plus. Responsibilities include contacting buyers, verifying carriers, conducting data audits, and updating internal systems.

Finance Operations & Controls Specialist needed to support payments, payroll, reconciliations, treasury, and reporting. This role requires strong Excel and Power Query skills, experience with financial data and controls, and a focus on accuracy and process improvement. Must be comfortable working independently and collaborating across teams.

Data Understanding Specialist will bridge machine learning engineers and labelers, ensuring accurate data structuring. Responsibilities include project support, template application, SOP creation, queue management, training, quality monitoring, and process optimization. Fluency in German and English is required, along with 1+ year of operations experience in a tech or social media company with data analytics experience.

Data Engineer with 5+ years of experience in Dataiku, specializing in data pipeline design, ETL processes, and data integration. Proficient in Python, SQL, and scripting within Dataiku environments. Experience migrating data workflows from SAS to other platforms.

Design, build, and maintain scalable data architectures for a smart financial services platform. Process and store data from millions of users across global sources. Work with technologies like Spark, Kafka, Python, SQL, Airflow, and AWS.

Enterprise Customer Success Manager will develop and maintain relationships with strategic clients in the US and Canada. The role requires 5+ years of experience working with global Enterprise or Corporate segment customers and fluency in English. Responsibilities include acting as a trusted advisor, controlling delivery processes, and helping customers achieve desired outcomes.

Senior AI Software Engineer will design and implement GenAI platform components enabling intelligent agents and AI-driven user experiences. Responsibilities include architecting backend services, integrating LLMs, defining technical standards, and collaborating with product teams. Requires 5+ years of experience building complex software systems, strong Java and Python skills, and hands-on experience with Generative AI systems.

Database Administrator with minimum 5 years of experience required. Proven experience with PostgreSQL (mandatory) and at least one of: Oracle SQL, MySQL, SQL Server, or MongoDB. Strong hands-on experience in database infrastructure setup, configuration, and performance tuning. Fluency in English is mandatory. Ability to participate in an on-call rotation.

Creative Director to architect a dual-brand strategy for a personal brand and a company brand. Develop and execute content strategies across platforms, including YouTube, Instagram, and LinkedIn. Lead a content team, manage production, and analyze performance metrics. Must have experience scaling a media brand, managing creative teams, and writing high-performing scripts. Fluency in French and English is required.

Analyze and interpret large datasets to uncover insights and design predictive models. Requires 2+ years' experience, proficiency in Python, R, SQL, and ML/AI frameworks. Fluency in Portuguese and CPLP nationality or EU work permit required.

Design and develop complex mechanical systems, including assemblies, sheet metal parts, and precision mechanisms. Create CAD models and drawings using SolidWorks and validate designs through calculations, simulations, and testing. Collaborate with cross-functional teams to ensure designs are optimized for performance, cost, and manufacturability.

Data Engineer needed for a Portuguese consulting company. Bachelor's degree in a related field and Azure certifications required. Experience with Azure services like Azure SQL Database, Azure Data Lake, and Azure Synapse Analytics is essential. Proficiency in Python, SQL, or C# for data pipelines and automation is needed. Strong communication and problem-solving skills are also required. Fluent in English.

FP&A & Controlling Specialist will own financial reporting, performance analysis, and budgeting processes. The role requires strong analytical skills, financial acumen, and experience with ERP systems.

Project Manager for Global MarCom Program Office will lead complex international projects, manage global marketing campaigns and product launches, and streamline processes. Requires 5+ years of experience managing complex international projects and proficiency with project management tools.

TUI Musement seeks digital-savvy individuals in Madeira to provide service support. The role involves creating memorable guest experiences, offering tailored recommendations, and resolving issues effectively. Must be fluent in English, possess a driving license, and own a car.

Execute the renewal process to retain or expand ARR. Identify customer and opportunity risk and coordinate mitigation. Collaborate cross-functionally to provide exceptional customer experiences.

Senior Analyst Customer Insights will own end-to-end analytics on customer questions like acquisition, retention, cross-sell, upsell, churn, and lifetime value. You will design, analyze, and operationalize experiments to optimize digital journeys, pricing, promotions, and CRM campaigns. You will build and maintain customer segmentations, churn models, and lifecycle frameworks. You will conduct deep-dive analyses across web, app, and station touchpoints, connecting insights to business impact. You will develop clear dashboards and metrics, enabling self-serve insights and data-driven decision-making for stakeholders. You will present insights and recommendations to senior leaders, driving strategic initiatives across the business.

Java Software Engineer will design, develop, and maintain Java-based microservices for omni-channel retail and order management. Responsibilities include implementing integrations with Order Management Systems, troubleshooting defects, and collaborating with DevOps and QA. Requires a Bachelor's or Master's degree in Computer Science, 7+ years of experience as a Java Software Engineer, and expertise in Spring ecosystem, microservices, and cloud-native development.