freelance English-speaking jobs in Barreiro

Design, build, and maintain scalable data platforms using GCP. Process and analyze large datasets with Spark, Apache Beam, and other Big Data tools. Collaborate with teams to ensure data accuracy and security.

Payroll Specialist needed to provide high-quality payroll services to clients, collaborate with teams, and ensure accurate and timely processing. Requires 2+ years of relevant experience, excellent English communication, and a degree in Economics.

Technology Consultant to design, implement, and manage observability and containerized environments. Requires experience with infrastructure automation, CI/CD pipelines, and container technologies (e.g., Docker, Kubernetes). Must have knowledge of ELK stack or similar observability tools and fluency in English and Portuguese.

Foxelli Group seeks an AI Multimedia Designer to create high-converting video ads for paid channels. Responsibilities include producing AI-generated video ads, UGC-style visuals, and leveraging AI tools for video creation and editing. Must have proven experience creating video ads with high conversion rates and experience with platforms like Meta. A portfolio of past AI-generated video ad content is required.

Post-MBA Program at ComparaJa offers a unique opportunity to drive growth in a fast-paced environment. Responsibilities will center around product development, team leadership, brand amplification, and strategic execution. Successful candidates will be highly ambitious, proactive, and possess strong communication and organizational skills. Native or near-native Portuguese proficiency is required.

Develop and optimize Oracle databases with expertise in PL/SQL. Design, manage, and refine Oracle objects. Apply analytical skills to deliver robust solutions and collaborate with cross-functional teams.

Cofounder & Managing Director to build and scale AI education company. Own revenue growth, partnerships, operations, and long-term strategy. Proven experience building or scaling a startup, business unit, or community required. Strong commercial mindset and ability to operate in ambiguity.

JavaScript SAP UI5 Developer needed to design, build, and configure applications. Must have JavaScript and SAP UI5 development experience. English B2 level required.

RPA Developer with minimum 1 year of experience in Blue Prism development. Must be fluent in English and able to work in a hybrid model (2-3 days/week) from the Lisbon office. Valid work permit for Portugal required.

Lead paid media strategy for a €2M+ annual budget across Meta and YouTube ads in 4 European markets. Develop creative concepts, analyze performance, and iterate campaigns to achieve ROAS, CPA, and scalability goals.

The Claim Assessor evaluates complex claims to ensure compliance with regulations, approves, reduces, or rejects them, and provides transparent explanations.

The Facility & Maintenance Lead oversees all facility and equipment maintenance activities, ensuring safe and compliant operations. This role involves coordinating a team of technicians, performing inspections, troubleshooting issues, and managing construction projects. The ideal candidate has strong technical expertise in facility systems, construction methods, and material specifications.

Senior Software Engineer with 4+ years of experience in C# (.NET), microservices, and NoSQL databases (ElasticSearch preferred). Leads technical initiatives, mentors engineers, and drives best practices within Agile development environments.

SOC Level 1 analyst to administer, maintain, and evolve security infrastructure and platforms. Support monitoring, automation, and incident response teams. Requires 6+ months experience, knowledge of SIEM, SOAR, EDR, firewalls, and IP networks. Must be proficient in English and available for 24x7 shifts.

Lead .Net Fullstack Developer needed with 5+ years experience in C# .NET development (.NET Framework/.NET Core). Must have hands-on experience with Optimizely CMS or similar DXP/CMS platforms and strong knowledge of SQL/NoSQL databases and REST APIs. Experience with modern frontend frameworks (React, Next.js, or similar), DevOps practices, and microservices is required. Fluent English (B2 or higher) is essential.

Technical Support Specialist needed for night shift (9:30P - 6:00A). Resolve complex technical issues, particularly those related to SIP signaling, RTP, and call flow in VoIP/SIP trunking environments. Strong VoIP knowledge and troubleshooting experience required.

The UGC & Creator Strategist develops and executes a scalable UGC plan, translating marketing calendars into creative strategies and briefs for creators. This role focuses on identifying content needs, selecting creators, and shaping content across paid, social, and owned channels.

Develop and maintain web applications using React, React Remix, Tailwind, Redux, Axios, and other JavaScript technologies. Collaborate with design and product teams to create user-friendly applications.

Noesis seeks experienced Mainframe operators for its Lisbon team. Requires knowledge of IBM Z/OS, JCL, utilities (SORT/ICEMAN, IEBGENER, IEBCOPY, IDCAMS), AIX, SUN Solaris, and BMC Control/M scheduler. Experience with MS Office tools is also needed.

Software Engineer to own feature development and collaborate within agile squads. Responsibilities include requirement analysis, code quality assurance, performance optimization, and documentation. Requires 2-5 years of experience, proficiency in Git, and knowledge of relational databases.