Open to opportunities

Jonny Steven

@jonnysteven

Message

I build AI-powered full-stack SaaS platforms that automate workflows at scale.

Sweden

Message

What I'm looking for

I'm looking to build production-grade AI and cloud-native products where I can automate workflows, improve performance, and deliver scalable experiences with strong cross-functional teams.

I've built AI-powered full-stack applications at Threekit, delivering intelligent automation for customer-facing and internal business workflows. My work includes a RAG-powered document intelligence platform processing 50,000+ documents monthly, reducing document review effort by 70%.

I improve product performance and responsiveness across React, Next.js, TypeScript, Node.js, FastAPI, and PostgreSQL. I've reduced page load times from 4.5 seconds to 2 seconds, API response times from 900ms to 400ms, and interaction latency by 40%.

Before Threekit, I developed scalable web applications at NextGen Web Solutions and backend services at Innovatech, supporting thousands of daily users and more than one million API requests annually.

I enjoy building production-grade cloud-native systems with AWS, Docker, Kubernetes, CI/CD, and modern GenAI tools including OpenAI, LangChain, Pinecone, and RAG.

Experience

Work history, roles, and key accomplishments

Full-Stack Engineer (AI Focus)

Threekit

Apr 2022 - May 2026 (4 years 1 month)

Delivered enterprise-grade full-stack applications using React, Next.js, Node.js, FastAPI, and OpenAI API, enabling intelligent automation across customer-facing and internal workflows. Optimized web performance, reduced API response times, and built a RAG-powered document intelligence platform.