freelance English-speaking jobs in Maia

Administers and maintains Windows Server environments, including Exchange servers and Active Directory. Implements system updates, patches, and backups. Monitors system performance and provides technical support. Requires 6+ years of experience as a Windows Systems Administrator with 3-4 years of experience with Exchange and Active Directory.

Provides sales and service support, including order processing, invoicing, customer communication, and contract management. Manages license activations, renewals, and customer support. Requires fluency in Portuguese and English, strong organizational skills, and proficiency in Oracle, SAP, and Microsoft Office.

Experienced Sales Manager needed to develop and implement sales strategies, manage a team, and drive revenue growth. Minimum 3 years sales management experience required.

Sales Representative to promote and sell products to potential customers. Responsibilities include identifying leads, presenting products, negotiating contracts, and meeting sales targets. Must be fluent in English.

Functional Tester will ensure testing activities, implement testing practices, plan and design tests, and execute manual and automated tests. Requires 2+ years of experience, Agile/Scrum knowledge, and BDD understanding.

Junior Analytics Consultant translates business challenges into analytical problems, analyzes large datasets, and builds AI models to optimize business processes. Requires a degree in a quantitative field, strong analytical skills, Python proficiency, and experience with data analysis and algorithm development.

Develops, maintains, and improves demand forecasts using historical data, statistical models, and business insights. Analyzes forecast accuracy, identifies variance drivers, and recommends corrective actions. Partners with cross-functional teams to align on assumptions, promotions, and market changes. Supports S&OP/IBP processes by preparing demand scenarios and insights.

Provides administrative support to ensure efficient office operations. Responsibilities include greeting visitors, managing mail and communication, scheduling appointments, and preparing documents. Requires a high school diploma and proficiency in Microsoft Office.

Retail Media Account Manager to develop revenue in shopping centers. Prospect for and manage advertiser relationships, develop commercial proposals, and identify new business opportunities. Requires 5 years of media, advertising, or sales experience and a relevant network of contacts.

As a Support Engineer, you will manage IT operations, including helpdesk support, onboarding/offboarding automation, and endpoint security. You will also administer macOS, Okta, Google Workspace, and Microsoft 365, while supporting the company's AI tool deployment.

NOC Analyst to provide first/second level support for platform/service failures, resolve incidents, and collaborate with internal/external teams. Requires 1+ years of experience in telecommunications and IT, with knowledge of CORE/RAN/TX network troubleshooting and various network technologies.

Conversational Agent AI platform Engineer needed with 5+ years Python experience. Develop and maintain REST APIs, data pipelines, and AI platforms. Expertise in Conversational AI, RAG, Elasticsearch, and DevOps practices required.

Lead the design and implementation of an enterprise-grade registry and discovery platform for AI agents, tools, and MCP services. Responsibilities include service registration, metadata governance, semantic discovery, identity mapping, lifecycle management, and integration with AWS AgentCore.

Senior SRE FinOps Engineer will drive cloud cost optimization across a large-scale Google Cloud environment. Responsibilities include building dashboards, creating budgets and alerts, optimizing workloads, and automating cloud governance. Requires strong experience in Site Reliability Engineering, DevOps, or Cloud Engineering with proven cloud cost optimization experience and hands-on Google Cloud Platform experience.

Design and develop avionics hardware for autopilot systems, including schematics, PCB layouts, and test infrastructure. Ensure designs meet DO-254 certification requirements and are environmentally qualified. Collaborate with firmware, mechanical, and production teams.

Model Risk Manager will provide insights on material models, identify improvements to modeling processes, and recommend solutions to model developers. Responsibilities include embedding model risk management practices across the model lifecycle and enhancing senior management's understanding of model outputs. Requires 5+ years of experience validating models in areas like credit, liquidity, treasury, stress testing, FinCrime, and/or AI/ML.

Process Engineer to ensure technical alignment, process harmonization, and consistent application of manufacturing standards across sites. Lead cross-site technical discussions and reviews to align process-related decisions and performance improvement plans. Analyze process performance data to identify trends and risks and drive continuous improvement initiatives.

Develop and enhance global compensation and benefits strategy, including job evaluations, grading structures, and salary review processes. Design and manage variable compensation programs and ensure compliance with regulatory requirements.

Develop and execute business development strategies to expand client portfolio. Identify, approach, and win new clients in the technology sector. Build trusted relationships with decision-makers and hiring managers.

The Chief Electrician oversees the operation and maintenance of the ship's electrical plant and systems, ensuring compliance with regulations and procedures. Responsible for the upkeep of equipment such as elevators, fire alarm systems, motors, alternators, and control systems. Collaborates with the Chief Engineer on waste treatment and environmental systems.