Empresa: CI&T
At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions. With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy. We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day. We are looking for a Senior AI Engineer to design and develop AI-powered solutions that combine Large Language Models (LLMs), document intelligence, and full-stack engineering. In this role, you will build reliable information extraction pipelines, improve the accuracy and traceability of AI-generated results, and contribute to the evolution of a web application. You will work across AI engineering, model evaluation, and front-end development to deliver scalable solutions that meet business requirements and provide a high-quality user experience. Responsibilities • Design and develop LLM-powered extraction pipelines using techniques such as multi-call consensus, grounding, and value verification to improve accuracy and reliability. • Align extracted attributes with the PriCat standard , ensuring data consistency and compatibility with new ERP systems. • Evaluate and optimize AI models based on accuracy, cost, and latency, using LLM observability tools to monitor and improve performance. • Develop and integrate AI capabilities using Python, Azure OpenAI, LangChain, and Document Intelligence . • Build and maintain prompt templates and structured generation workflows using Jinja2 . • Rebuild and enhance the web application based on the Design team's mockups, using Next.js and React . • Implement user-facing features such as PDF grounding views to improve transparency and help users validate extracted information. • Support French-speaking users by investigating and resolving issues, delivering fixes, and implementing small features. • Develop and maintain automated tests to ensure application quality, reliability, and maintainability. • Collaborate with engineering, design, and business stakeholders to translate requirements into effective AI-powered solutions. Requirements for this challenge • Strong experience in software engineering, with a focus on AI engineering and full-stack development . • Proficiency in Python and experience building AI-powered applications. • Hands-on experience with Azure OpenAI and Large Language Models (LLMs). • Experience with LangChain and developing LLM-based workflows or information extraction pipelines. • Knowledge of document processing, structured data extraction, grounding, and output validation. • Experience evaluating AI solutions against quality, cost, and latency metrics. • Familiarity with LLM observability tools, particularly Langfuse . • Experience with React and Next.js for front-end development. • Familiarity with Jinja2 or similar template-based approaches. • Experience implementing automated tests and troubleshooting production applications. • Strong analytical and problem-solving skills, with attention to data quality and reliability. • Ability to collaborate with multidisciplinary teams and communicate technical concepts clearly. Nice to Have • Experience with Azure AI Document Intelligence or similar document processing technologies. • Knowledge of LLM evaluation strategies, multi-step extraction, consensus mechanisms, and grounding techniques. • Experience integrating AI-generated data with ERP systems or enterprise data standards. • Familiarity with PDF rendering, document annotation, and evidence-based validation interfaces. • Experience supporting international users or working in multilingual environments. • Knowledge of AI application monitoring, tracing, and continuous improvement practices. #LI-GP1 Our benefits: -Health and dental insurance -Meal and food allowance -Childcare assistance -Extended paternity leave -Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass; - Profit Sharing and Results Participation (PLR); -Life insurance - Continuous learning platform (CI&T University); -Discount club -Free online platform dedicated to physical, mental, and overall well-being -Pregnancy and responsible parenting course -Partnerships with online learning platforms -Language learning platform And many more! More details about our benefits here: https://ciandt.com/br/pt-br/carreiras At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here . This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it. 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.