freelance English-speaking jobs in Barreiro

DareData seeks AI Engineers to build and deploy real-world AI products. Requires proficiency in Python, LLM application development, agentic AI systems, prompt engineering, and MLOps. Must have experience with Docker, Git, CI/CD, and unit testing.

DevOps Engineer will architect, build, and maintain scalable cloud infrastructure in AWS using Terraform and Ansible. Design and manage containerized platforms using Docker, Kubernetes, ECS/Fargate, and Helm. Implement and optimize CI/CD pipelines in GitLab. Support and troubleshoot production systems, focusing on scalability, resilience, and technical debt reduction. Mentor engineers and guide teams on cloud-native architecture and DevOps best practices.

Software Engineer with 5+ years of experience in Python and/or Java, advanced SQL and Grafana skills, and fluency in English (B2 level) sought. Hybrid role, 3 days per week in Porto, Portugal. Must be based in Portugal with Portuguese or EU citizenship or a valid Portuguese work permit.

Designs, implements, tests, and maintains control and protection systems for high-voltage substations and power generation facilities. Ensures reliable and safe operation of electrical infrastructure.

Experienced Proxy Product Owner to accelerate data lake product build phase. Responsibilities include backlog enrichment, UAT testing, data analysis, and KPI optimization. Requires expertise in Azure Data Factory, Snowflake, Power BI, SQL, and Agile methodologies.

Lead Principal Engineer & Domain Architect Infrastructure Security will guide internal teams on security best practices, advise on identity and access management, infrastructure, and network security. Translate the cyber security strategy into actionable plans, oversee execution, and integrate across IT and OT environments. Develop and maintain robust security architectures, lead continuous improvement initiatives, and collaborate with cross-functional teams.

Devoteam seeks an IT professional to develop and implement IAM solutions. Responsibilities include implementing IAM controls, system monitoring, automation, and scripting in Python and Ruby. The candidate will work with MySQL databases, Windows/Linux servers, and cross-functional teams.

Lead the global creative vision and brand direction for the Bosch Power Tools division. Shape brand positioning, develop visual strategies, and inspire teams to deliver outstanding creative work.

Atlassian Consultant to support global cloud migration, platform evolution, and user enablement. Experience with Jira, Confluence, and agile methodologies required.

Data Analyst to support the Life Insurance sector. Requires a Bachelor's or Master's degree in a related field and 3+ years of experience as a Data Analyst or BI Analyst. Knowledge of IFRS17 and Solvency II frameworks is needed. Experience with Databricks, Snowflake, and BI tools is required.

Experienced Data Center Technician needed for on-site work in Lisbon, Portugal. Perform hardware installations, cabling, server racking, and troubleshooting. Must have 2+ years of data center experience, strong cabling skills, and ability to lift 50+ lbs.

Provide customer support to international clients, assisting with sales inquiries, product guidance, and technical troubleshooting.

Informatic Engineering Intern to support development, maintenance, and optimization of IT systems and digital infrastructure. Will provide technical support, contribute to software development, and participate in cybersecurity and process automation projects. Requires a degree in Informatics Engineering or related field and eligibility for an IEFP internship.

Develop and maintain mobile applications using React Native. Collaborate with backend and product teams to deliver integrated features. Ensure high code quality and adherence to development best practices.

Reviews insurance applications, prepares quotes and policy documents, and maintains underwriting files. Communicates policy decisions and updates to brokers, agents, and clients. Supports underwriters with data compilation and risk evaluation.

Mobidea seeks an AI Manager to lead the development and implementation of AI systems across its affiliate marketing businesses. This hands-on role involves building AI bots, autonomous agents, and MCP-native tooling, as well as scaling AI-generated creatives and automating compliance and fraud detection.

Full Stack Software Engineer will build sovereign infrastructure solutions, translating policy and market needs into technical specifications. Responsibilities include developing working versions of solutions, collaborating with product managers and engineers, and ensuring successful integration with SUSE's product landscape.

Digital Marketing Analyst to analyze and evaluate digital campaign performance, providing actionable insights and supporting internal teams. Requires 3+ years of experience in digital data analysis and visualization, advanced expertise in Adobe Analytics and Power BI, and fluency in French and English.

Business Analyst with 3+ years of experience in Supply Chain, Logistics, Warehouse Management, or Transportation software solutions. Analyzes, optimizes, and improves logistics processes. Strong analytical, communication, and interpersonal skills. Proactive and focused on continuous improvement. Hybrid work model in Lisbon.

Freelance AI trainer needed to design physics problems, evaluate AI solutions, and validate calculations using Python. Must have a physics degree, 3+ years of experience, strong Python skills, and excellent written English.