[Job-29644] MASTER AI / Machine Learning Specialist ( AWS )

<p><span style="font-size: 16px">We are <b>tech transformation </b>specialists, uniting human expertise with AI to create scalable tech solutions.</span></p><p><span style="font-size: 16px">With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.</span></p><p><br></p><p> </p><p><strong><em>==> Only CV in English will be consider</em></strong></p> <p><em><strong>==> Only Fluent English - C1 or higher speakers will be consider</strong> <strong> (you´ll have a lot of interaction with clients and stakeholders in US daily).</strong> </em></p> <p><strong><em>==> 100% remote</em></strong></p> <h2>About the Project</h2> <p>We are building an AI-powered media planning platform that transforms highly manual and expert-dependent workflows into an intelligent conversational experience.</p> <p>The solution leverages a multi-agent architecture orchestrated through AWS Bedrock to guide users across complex campaign planning processes, integrating real-time enterprise data and generating mathematically optimized media proposals.</p> <p>The platform combines:</p> <ul data-spread="false"> <li>Agentic AI architectures</li> <li>Retrieval-Augmented Generation (RAG)</li> <li>Mathematical optimization engines</li> <li>Enterprise system integrations</li> <li>Workflow automation from opportunity discovery to campaign activation</li> </ul> <p>This is a high-impact initiative focused on building scalable, production-grade AI systems using modern AWS AI/ML services.</p> <h1>Role Overview</h1> <p>As a <strong>MASTER AI / Machine Learning Specialist</strong>, you will be responsible for designing and implementing the agentic intelligence layer of the platform.</p> <p>You will architect and develop specialized AI agents capable of collaborating across complex planning workflows, integrating enterprise tools and data sources while ensuring scalability, observability, governance, and production reliability.</p> <p>This role requires deep hands-on expertise in AWS Generative AI services, multi-agent systems, orchestration patterns, prompt engineering, and production ML operations.</p> <h1>Key Responsibilities</h1> <ul data-spread="false"> <li>Design and implement multi-agent AI architectures using AWS Bedrock</li> <li>Develop agent orchestration logic and collaborative agent workflows</li> <li>Configure and manage AWS Bedrock Agents, Knowledge Bases, and Guardrails</li> <li>Build Retrieval-Augmented Generation (RAG) pipelines using vector databases and embeddings</li> <li>Implement tool integrations using Model Context Protocol (MCP) and API-based services</li> <li>Optimize LLM behavior through prompt engineering, tuning, and context management</li> <li>Develop observability and monitoring strategies for AI workflows using CloudWatch and X-Ray</li> <li>Build scalable event-driven architectures and resilient integration patterns</li> <li>Design error handling, retry strategies, and graceful degradation mechanisms</li> <li>Collaborate with engineering, product, and architecture teams to deliver production-grade AI solutions</li> <li>Support infrastructure automation and deployment pipelines using IaC and CI/CD practices</li> <li>Ensure governance, security, auditability, and compliance standards across AI systems</li> </ul> <h1>Must Have Qualifications</h1> <ul data-spread="false"> <li>Proven experience building production AI/ML systems on AWS</li> <li>Strong hands-on expertise with AWS Bedrock Agents (AgentCore)</li> <li>Experience designing multi-agent systems and agent orchestration workflows</li> <li>Experience with AWS Bedrock Knowledge Bases (RAG), vector embeddings, and OpenSearch Serverless</li> <li>Expertise with AWS Bedrock Guardrails, including PII protection and content governance</li> <li>Experience implementing tool calling, function invocation, and state management</li> <li>Strong prompt engineering and LLM optimization experience</li> <li>Deep understanding of AWS observability tools:  CloudWatch,  X-Ray,  Distributed tracing</li> <li>Experience with:  API Gateway,  DynamoDB,   Event-driven architectures</li> <li>Familiarity with Infrastructure as Code:  Terraform,  AWS CDK</li> <li>Strong knowledge of RESTful APIs and integration patterns</li> <li>Experience with CI/CD pipelines for ML and AI systems</li> <li>Ability to design resilient and fault-tolerant AI applications</li> <li>Strong communication, collaboration, and technical documentation skills</li> </ul> <h1>Nice to Have</h1> <ul data-spread="false"> <li>Experience with Model Context Protocol (MCP)</li> <li>Experience with AWS Step Functions for workflow orchestration</li> <li>Familiarity with: CloudFront, S3, AWS WAF</li> <li>Knowledge of conversational AI UX patterns and hybrid interaction models</li> <li>Experience with session persistence and conversation state management</li> <li>Understanding of compliance and governance requirements:  PII handling,  Audit trails,  Data retention</li> <li>Experience optimizing AWS Bedrock and OpenSearch operational costs</li> <li>Familiarity with LLM evaluation frameworks and AI quality metrics</li> <li>Experience with multi-turn dialogue management and context preservation</li> <li>Knowledge of explainability and AI reasoning visualization techniques</li> </ul> <h1>Preferred Profile</h1> <p>We are looking for someone who:</p> <ul data-spread="false"> <li>Has strong ownership and autonomy</li> <li>Is proactive and solution-oriented</li> <li>Can operate effectively in ambiguous and fast-paced environments</li> <li>Communicates clearly with both technical and non-technical stakeholders</li> <li>Has a product mindset and business-oriented thinking</li> <li>Demonstrates urgency, accountability, and collaboration</li> <li>Enjoys building scalable AI platforms from the ground up</li> </ul> <h1>Technology Stack</h1> <p>AWS Bedrock | AgentCore | RAG | OpenSearch | DynamoDB | API Gateway | Lambda | Step Functions | CloudWatch | X-Ray | Terraform | CDK | Python | MCP | CI/CD | Docker | Event-Driven Architecture</p> <h1>Why Join Us</h1> <ul data-spread="false"> <li>Opportunity to build cutting-edge enterprise AI solutions</li> <li>Work with modern agentic AI architectures and AWS GenAI ecosystem</li> <li>High visibility and strategic impact project</li> <li>Collaborative and innovation-driven environment</li> <li>Opportunity to shape the future of AI-powered workflow automation</li> </ul> <p></p> <p></p><p><br></p><p></p> <p><span style="font-size: 16px"><b>Our benefits:</b></span></p><p><br></p><p><span style="font-size: 16px">-Health and dental insurance</span></p><p><span style="font-size: 16px">-Meal and food allowance</span></p><p><span style="font-size: 16px">-Childcare assistance</span></p><p><span style="font-size: 16px">-Extended paternity leave</span></p><p><span style="font-size: medium">-Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass;</span></p><p><span style="font-size: 16px">-</span><span style="font-size: medium">Profit Sharing and Results Participation (PLR);</span></p><p><span style="font-size: 16px">-Life insurance</span></p><p><span style="font-size: 16px">-</span><span style="font-size: medium">Continuous learning platform (CI&T University);</span></p><p><span style="font-size: 16px">-Discount club</span></p><p><span style="font-size: 16px">-Free online platform dedicated to physical, mental, and overall well-being</span></p><p><span style="font-size: 16px">-Pregnancy and responsible parenting course</span></p><p><span style="font-size: 16px">-Partnerships with online learning platforms</span></p><p><span style="font-size: 16px">-Language learning platform</span></p><p><span style="font-size: 16px">And many more!</span></p><p><br></p><p><span style="font-size: 16px">More details about our benefits here: </span><a href="https://ciandt.com/br/pt-br/carreiras"><span style="font-size: 16px">https://ciandt.com/br/pt-br/carreiras</span></a></p><p><br></p><p><span style="font-size: 12pt">At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important</span><b style="font-size: 12pt"> to present your assessment during the selection process. </b><i>See which data needs to be included in the report by <a href="https://docs.google.com/presentation/d/12BqYLIGeEyp9t0ZdF2b4bvnjFLza4E8fmbcowWeBlfk/edit?slide=id.g3a9cf52bf2b_0_0#slide=id.g3a9cf52bf2b_0_0">clicking here</a></i><a href="https://docs.google.com/presentation/d/12BqYLIGeEyp9t0ZdF2b4bvnjFLza4E8fmbcowWeBlfk/edit?slide=id.g3a9cf52bf2b_0_0#slide=id.g3a9cf52bf2b_0_0">.</a><span style="font-size: 12pt">This way, we can ensure the support and accommodations that you deserve. </span><b style="font-size: 12pt">If you do not yet have the assessment, don't worry: we can support you in obtaining it.</b></p><p><br></p><p><span style="font-size: medium">We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.</span></p>

Back to blog

Common Interview Questions And Answers

1. HOW DO YOU PLAN YOUR DAY?

This is what this question poses: When do you focus and start working seriously? What are the hours you work optimally? Are you a night owl? A morning bird? Remote teams can be made up of people working on different shifts and around the world, so you won't necessarily be stuck in the 9-5 schedule if it's not for you...

2. HOW DO YOU USE THE DIFFERENT COMMUNICATION TOOLS IN DIFFERENT SITUATIONS?

When you're working on a remote team, there's no way to chat in the hallway between meetings or catch up on the latest project during an office carpool. Therefore, virtual communication will be absolutely essential to get your work done...

3. WHAT IS "WORKING REMOTE" REALLY FOR YOU?

Many people want to work remotely because of the flexibility it allows. You can work anywhere and at any time of the day...

4. WHAT DO YOU NEED IN YOUR PHYSICAL WORKSPACE TO SUCCEED IN YOUR WORK?

With this question, companies are looking to see what equipment they may need to provide you with and to verify how aware you are of what remote working could mean for you physically and logistically...

5. HOW DO YOU PROCESS INFORMATION?

Several years ago, I was working in a team to plan a big event. My supervisor made us all work as a team before the big day. One of our activities has been to find out how each of us processes information...

6. HOW DO YOU MANAGE THE CALENDAR AND THE PROGRAM? WHICH APPLICATIONS / SYSTEM DO YOU USE?

Or you may receive even more specific questions, such as: What's on your calendar? Do you plan blocks of time to do certain types of work? Do you have an open calendar that everyone can see?...

7. HOW DO YOU ORGANIZE FILES, LINKS, AND TABS ON YOUR COMPUTER?

Just like your schedule, how you track files and other information is very important. After all, everything is digital!...

8. HOW TO PRIORITIZE WORK?

The day I watched Marie Forleo's film separating the important from the urgent, my life changed. Not all remote jobs start fast, but most of them are...

9. HOW DO YOU PREPARE FOR A MEETING AND PREPARE A MEETING? WHAT DO YOU SEE HAPPENING DURING THE MEETING?

Just as communication is essential when working remotely, so is organization. Because you won't have those opportunities in the elevator or a casual conversation in the lunchroom, you should take advantage of the little time you have in a video or phone conference...

10. HOW DO YOU USE TECHNOLOGY ON A DAILY BASIS, IN YOUR WORK AND FOR YOUR PLEASURE?

This is a great question because it shows your comfort level with technology, which is very important for a remote worker because you will be working with technology over time...