freelance English-speaking jobs in Barreiro

Buyer manages and supports purchasing and procurement objectives, optimizing supply chain and cost for the hotel network. Responsibilities include category management, supplier relations, project procurement, logistics, and internal support. Requires 3+ years experience, a Master's in Supply Chain Management, and proficiency in Spanish and English.

Execute and maintain daily financial operations across multiple accounts and systems. Ensure operational processes are accurate, reconciled, and documented. Collaborate with internal and external stakeholders on operational matters.

The Intraday and Scheduling Specialist monitors and optimizes daily operational performance, ensuring service levels are met through real-time adjustments and coordination with operational teams. Responsibilities include demand forecasting, workforce planning, shift optimization, time and attendance management, and real-time workforce management.

Leads day-to-day operations for a property management company, overseeing bookings, calendar management, maintenance, team leadership, and owner relations. Ensures consistent service standards and performance across a portfolio of high-quality homes.

Provides expert-level technical support for SAP-based systems, resolving issues, managing incidents, and ensuring system health. Collaborates with SAP functional experts and business teams to plan and execute upgrades and patches.

Manages multiple projects and teams within offensive security, providing technical and pre-sales support, resolving incidents, and driving continuous improvement.

Experienced Android Developer to design and evolve the architecture of a mobility application. Collaborate with architects, mentor developers, and ensure performance, maintainability, and scalability. Requires a degree in Computer Science or equivalent, 3+ years software engineering, and 4+ years Android development experience.

Functional & Automation Test Analyst needed for financial services. Analyze requirements, design test cases, and execute functional and acceptance testing across various systems. Experience with Agile/Scrum, tools like Jira, Confluence, and UFT, and SQL/MySQL is required.

Process Modeling Engineer will conduct research and analysis using deterministic, statistical, and hybrid models for process data. Design, implement, and validate machine learning models tailored to bioprocess data. Deliver process data analysis and modeling services to clients.

Electrical Package Manager needed for data center construction in Portugal. Manage electrical systems from design to commissioning, oversee site safety, and collaborate with project stakeholders. Requires relevant electrical qualification, project management experience, and knowledge of health & safety.

Linguist to support AI training and content creation. Strong academic background in linguistics required. Responsibilities include creating linguistic content, resolving ambiguity and bias issues, and annotating datasets. Experience with computational linguistics, corpus analysis, or LLM training is a plus.

Paid Media Manager to own performance acquisition across Meta Ads and Google Ads for a D2C eCommerce start-up. Manage budgets, targeting, bidding, creative testing, and scaling. Ensure accurate tracking and build performance reports. 3+ years of experience in paid media/performance marketing required.

Leads the overall marketing strategy, shaping brand positioning and narrative across digital channels. Drives demand generation and growth initiatives, collaborating with leadership and performance teams.

Coreflux seeks problem-solving engineers to architect solutions using AI-assisted development tools. Responsibilities include designing, orchestrating AI tools, ensuring code quality, and understanding complex systems. Strong problem-solving, systems thinking, and technical literacy are required.

Manage the full recruitment cycle for IT roles, including job descriptions, candidate sourcing, and interviews. Requires 6 months to 2 years of recruitment experience, a bachelor's degree in a related field, and fluency in Portuguese and English.

Flow is seeking a Founding CX Knowledge & Enablement Lead to build and scale "Flow University," a gold standard for CX enablement in the AI era. This role involves creating documentation, training, and onboarding materials, partnering with Product/Engineering to scale the system, and coaching Team Leads to ensure quality and continuous improvement.

Supports team operations, including logistics, inventory management, and administrative tasks. Assists with recruitment, onboarding, and internal communications. Contributes to strategic decision-making through data analysis and presentation preparation.

Global Sales and Business Development Coordinator to represent The Energy Year in new markets, conduct sales meetings, develop client relationships, and lead sales campaigns. Requires 1-3 years of experience, fluency in English, and the ability to travel and relocate internationally.

Accountant needed for monthly accounting processes, group closing, and statutory financial statement preparation. Responsibilities include account reconciliations, data quality checks, and ERP system transition support. Strong accounting knowledge, analytical skills, and fluency in English are required.

French Nurse Customer Support Specialist for Abbott Diabetes Care. Provide patient support via calls and emails, offering guidance on diabetes treatment technologies. Must have a nursing degree, fluency in French (C2), and intermediate English (B2).