freelance English-speaking jobs in Barreiro

Provide inbound customer service and upselling support for a world-leading rail travel company. Offer information, solutions, and advice to customers via phone, email, and chat. Promote additional services and new product launches. Must be a native German speaker with good English skills and a passion for the travel industry.

Freelance Clay.com expert needed to build targeted prospect lists enriched with intent signals and personalization data. Must have hands-on Clay.com experience and understanding of B2B ICPs.

Operations Assistant to coordinate ro-ro & lo-lo operations during vessel calls at the Port of Leixões. Assist with cargo operations, prepare shipment information, monitor operations, and liaise with stakeholders.

This HR Administrator role supports employee life cycle processes, including recruitment, onboarding, and managing HR documents. The position requires proficiency in Workday and Nibelis, fluency in English and French, and 2+ years of HR experience.

Full Stack Developer (React & Java) to design, develop, and maintain web applications for a major international financial group. Responsibilities include writing clean code, maintaining legacy applications, troubleshooting, and collaborating with a team. Requires a Bachelor's degree and 3+ years of experience with React, Java, and Spring Boot.

Provides on-site IT support for staff, troubleshooting hardware, software, and Microsoft 365 issues. Administers Microsoft 365 applications, manages device lifecycle, and supports cybersecurity initiatives. Requires 3-5+ years of IT support experience, strong Microsoft 365 knowledge, and fluency in English.

Senior Technical Product Manager to lead enterprise B2B platform development. Requires 7+ years of product management experience, strong technical knowledge of platform services and APIs, and experience launching and scaling platforms.

Aubay Portugal seeks a .NET Developer with at least 5 years of experience. Required skills include Azure, Azure AI Foundry, and React. Fluent English is mandatory.

Analytics Engineer will design analytical models in dbt, translate client data into actionable insights, and contribute to the evolution of the data stack. Requires 3+ years of data analysis experience, strong dbt skills, SQL and Python proficiency, and data warehouse experience.

Experienced Incident Response Manager needed for contract role supporting EU clients. Lead and coordinate security incident response activities, manage communication, and ensure effective containment and recovery.

Jobbex seeks a Tech Lead Salesforce Cloud Marketing to design, develop, and maintain Marketing Cloud solutions. Responsibilities include integrating Marketing Cloud with Salesforce and external systems, ensuring solution quality and security, and collaborating with global teams. Requires 10 years of experience with relevant platforms, a degree in a related field, and strong communication and problem-solving skills.

Security Engineer, Red Team will conduct red team exercises, penetration tests, and vulnerability research to strengthen defenses against real-world attacks.

DevOps Engineer to design, deploy, and maintain scalable infrastructure across on-premise and cloud environments. Manage CI/CD pipelines, Linux servers, containerized workloads, and critical systems. Ensure reliability, performance, and security of services. Collaborate with development teams to improve system architecture.

Supervises Front Desk activities including check-in/check-out, room allocation, guest complaints, and cash handling. Leads shift operations in collaboration with the Assistant Front Office Manager and/or Front Office Manager. Completes cashier and closing reports, processes guest check-ins, and ensures rates are accurate. Serves as a role model for the Guarantee of Fair Treatment/Open Door Policy and responds to emergency procedures. Maintains confidentiality, protects company assets, and adheres to company policies and procedures. Welcomes and acknowledges guests, anticipates service needs, and assists individuals with disabilities. Communicates clearly and professionally, develops positive working relationships, and ensures adherence to quality standards.

Multiple French-speaking customer service, technical support, content creation, and marketing roles available in Lisbon. Native or fluent French speakers, already living in Lisbon or EU citizens open to relocation, are encouraged to apply.

Supports scalable sales programs across diverse clients, driving revenue and product adoption. Assists in creating marketing strategies, generating leads, and collaborating with senior team members. Analyzes marketing data, prepares reports, and provides support in sales presentations and customer communications.

Experienced Product Manager needed for hybrid role in Lisbon. Own the product lifecycle, from ideation to execution, ensuring innovative and user-centered design. Collaborate with cross-functional teams, gather customer feedback, and define product strategies. Fluency in English is required.

HVAC Engineer needed for construction team in Sines. Manages HVAC design, construction, and supervision. Requires 8+ years experience, industry knowledge, related degree, and English proficiency.

Execute manual tests (functional, regression, exploratory), create test cases and plans, and identify bugs using Azure DevOps. Validate system integrations and APIs, perform data validation, and ensure quality across digital deliveries.

Supports internal clients with purchasing requests, ensuring quality, cost, and processing time satisfaction. Prepares IT application contracts and manages them throughout their lifecycle. Applies category sourcing strategies and ensures compliance with regulations and internal policies.