Open to opportunities

Jay User

@jayuser22

Senior full-stack engineer integrating AI/ML into production web apps to deliver scalable, high-impact features and better UX.

United Kingdom

Message

What I'm looking for

I’m looking for a team where I can build scalable full-stack products and integrate AI/ML into real workflows—shipping high-impact features that improve user experience and developer productivity.

I’m a Senior Full Stack Engineer and AI Engineer focused on shipping scalable web applications and bringing AI/ML into production. At Preset, I helped build an AI-native Business Intelligence platform by creating NL-to-SQL pipelines with LLM APIs and designing RAG-based analytics workflows using vector embeddings and Pinecone.

I also build reliable, high-performance products end-to-end—developing full-stack features with React/TypeScript/Node.js, implementing backend services (including Spring Boot), and strengthening stability with comprehensive testing and observability. From enterprise work at Atlassian and Shell, I’ve learned how to collaborate across teams to deliver user-focused functionality, automated delivery with CI/CD, and trustworthy analytics outputs.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer / AI Engineer

Current

Preset

Jun 2022 - Present (4 years 1 month)

Contributed to an AI-native Business Intelligence platform enabling natural language querying over large-scale analytics datasets. Built NL-to-SQL and RAG-based workflows using LLM APIs and Pinecone, and developed full-stack dashboard features deployed on AWS via Docker-based CI/CD pipelines.

RAG Pinecone React TypeScript AWS Lambda EC2 S3 Docker CI CD

Full Stack Engineer

Atlassian

Oct 2019 - Apr 2022 (2 years 6 months)

Developed and maintained scalable full-stack features across enterprise products used by millions of active users. Implemented responsive React/TypeScript frontends and backend services in Node.js and Java (Spring Boot), including testing and observability improvements.

React TypeScript Node Java Spring Boot Microservices Unit Testing Integration Testing Monitoring Alerting

Software Engineer

Shell

Sep 2018 - Jul 2019 (10 months)

Developed and maintained scalable enterprise applications supporting energy, trading, and operational systems. Built full-stack features using Java and React and improved deployment efficiency with CI/CD pipelines using Docker and AWS cloud platforms.

Java React Docker AWS CI CD