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jelanistewart007 User

@jelanistewart007user

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Senior AI Engineer building secure, production-ready LLM and RAG solutions for enterprises.

United States

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What I'm looking for

I’m looking to build secure, production-ready LLM/RAG and agentic automation solutions in regulated environments—translating business needs into prompts, retrieval logic, and guardrails—then partnering with stakeholders to prototype fast, iterate, and scale reliably.

I’m a Senior AI Engineer with 11 years of software engineering experience, and the last 3 years focused on building production AI solutions with Python, REST APIs, LangChain, Claude, Retrieval-Augmented Generation (RAG), vector databases, prompt design, and AWS—especially in regulated enterprise environments. I’ve delivered custom GPT and copilot-style workflows, agentic automations, and reusable AI components that connect internal knowledge sources to secure business applications for 3,000+ users.

I translate loosely defined business requirements into prompts, retrieval logic, structured instructions, and production guardrails—partnering closely with technical and non-technical stakeholders to prototype quickly, iterate from feedback, and scale compliant tools teams rely on daily. From building a RAG platform with pgvector and Pinecone to integrating AI with OAuth2, TLS 1.3, and secure REST endpoints that passed AppSec with zero critical findings, I prioritize reliability, uptime, and measurable improvements like higher retrieval relevance and reduced manual workload.

Experience

Work history, roles, and key accomplishments

Senior AI Engineer

JPMorgan Chase & Co.

Jan 2023 - Apr 2026 (3 years 3 months)

Designed and deployed production AI solutions in Python using LangChain, FastAPI, and AWS, delivering custom GPT and copilot-style agentic workflows for engineering and compliance teams. Built a RAG platform with pgvector and Pinecone, improving retrieval relevance by 42% and reducing manual report generation and incident summarization by 7+ hours per team weekly while maintaining 99.2% workflow u

Python Lang Chain fastAPI REST APIs Retrieval Augmented Generation (RAG)Pgvector Pinecone Prompt Design AWS Lambda

Senior AI Platform Engineer

Mynt / GCash

Jan 2019 - Dec 2022 (3 years 11 months)

Built Python and Java microservices with REST APIs on AWS ECS, RDS, and S3 to support high-volume financial workflows in a regulated environment. Delivered secure integrations for mobile and third-party merchants, cut deployment time by 60% via cloud migration with zero-downtime blue/green releases, and improved query throughput by 3x while maintaining 99.95% uptime.

Python Java REST APIs AWS ECS AWS RDS AWS S3 API Authentication & Audit Logging AWS

Backend Software Engineer

Exist Software Labs

Jun 2015 - Dec 2018 (3 years 6 months)

Developed Java and Spring Boot backend modules and REST APIs for healthcare and logistics clients, delivering production integrations within 6-week sprints. Reduced integration defects by 50% using OpenAPI-first design and contract testing, and cut SQL Server report latency from 8.2s to 1.4s through indexing and query refactoring.

Java Spring Boot REST APIs Contract Testing SQL Server Query Optimization Indexing Strategies