Senior AI Engineer: LLMs, Document Intelligence & Full-Stack

Openkrill; United States; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health and dental insurance

Meal and food allowance

Childcare assistance

Extended paternity leave

Wellhub/TotalPass wellness partnership

Profit Sharing and Results participate

Life insurance

CI&T University (learning platform)

Discount club

Well-being platform access

Pregnancy and parenting courses

Online learning platform partnerships

Language learning platform

Job summary

CI&T is seeking a Senior AI Engineer to design and develop AI-powered solutions that combine LLMs, document intelligence, and full-stack engineering. You will build reliable information extraction pipelines, improve accuracy and traceability of AI results, and contribute to a modern 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.

Qualifications

• Strong software engineering background with focus on AI engineering and full-stack development.
• Proficiency in Python and 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 template-based approaches (e.g., Jinja2).
• Experience implementing automated tests and troubleshooting production applications.

Responsibilities

• Design and develop LLM-powered extraction pipelines with multi-call consensus, grounding, and value verification.
• Align extracted attributes with the PriCat standard for ERP compatibility.
• Evaluate and optimize AI models considering accuracy, cost, and latency.
• Develop and integrate AI capabilities using Python, Azure OpenAI, LangChain, and Document Intelligence.
• Build and maintain prompt templates and structured generation workflows (e.g., using Jinja2).
• Rebuild and enhance a web application using Next.js and React.
• Implement user-facing features like PDF grounding views to improve transparency.
• Support French-speaking users by investigating issues and delivering fixes.
• Develop automated tests to ensure quality, reliability, and maintainability.
• Collaborate with engineering, design, and business stakeholders to translate requirements into AI solutions.

Skills

Python

Azure OpenAI

LangChain

LLMs

Document Intelligence

React

Next.js

Testing

Tools

Jinja2

Job description

CI&T is seeking a Senior AI Engineer to design and develop AI-powered solutions that combine LLMs, document intelligence, and full-stack engineering. You will build reliable information extraction pipelines, improve accuracy and traceability of AI results, and contribute to a modern 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.