Full-Stack & AI Product Engineer
I build software from first idea to production.
• I ship multi-agent AI products and multi-tenant SaaS end to end, using TypeScript & Python.
• Founding engineer at Moonshift; raised generation success 46% → 76% for 1,200+ users.
• Full-stack engineer at SignVault.io, owning the API, permissions, and billing.
Bring me anything - an idea, a Figma design, or a half-built product.
I can help scope it, ship it, or take ownership of the next stage.
Six systems I designed, built, and shipped. Each one links straight to the running product or the source.
Production · Founding engineer
AI app builder that turns a prompt into a deployed full-stack app. I rebuilt the multi-agent generation pipeline, taking end-to-end success from 46.2% to 76.7% and cutting median prompt-to-live time 32%, to 14.9 minutes. 1,200+ users, 800+ apps generated.
TypeScriptPythonNext.jsPostgreSQLSSEDockerOpen source · Solo · Apache-2.0
Go CLI that keeps Claude Code and Codex sessions alive across machines. Zero-knowledge age encryption into your own S3/R2 bucket, plus OS-aware path remapping so resume still works after switching from Windows to macOS. 23/23 cross-platform acceptance tests.
GoageS3GitHub ActionsProduction · Full-stack engineer
Multi-tenant e-signature SaaS (shut down Nov 2025). I owned the REST API, ABAC permissions engine, and Stripe billing.
Next.jsExpressPostgreSQLOpen source · Component library
Accessible, motion-first React component library. 10+ components, MDX docs, showcased at GitHub Universe 2025.
ReactTypeScriptFramer MotionAI product · Visual orchestration
No-code canvas for multi-agent AI workflows. Swap between OpenAI, Claude, Grok, and Gemini. 140+ early adopters.
Next.jsFastAPILangChainDesktop tool · Developer experience
Desktop app that syncs MCP servers, API keys, and settings across Cursor, Windsurf, and VS Code. 219+ developers.
ElectronReactTypeScriptProduction engineering across AI products, multi-tenant SaaS, and real-time systems.
Built and shipped the AI app builder end to end - multi-agent pipeline, SSE observability, prompt-to-deploy - to 1,200+ users.
Owned the e-signature REST API, ABAC engine, Stripe billing, and document workflows for a multi-tenant SaaS.
Multithreaded Python pipeline that scraped and deduplicated 100,000+ job listings, deployed on AWS EC2.
Built an AI blog-generation platform on the OpenAI and Reddit APIs, from interface to content preview.
Practical notes on AI systems, developer tooling, and shipping full-stack products.
What I reach for in production, roughly in order of how much of it I've actually shipped. Agent orchestration, tool calling, and streaming pipelines sit on top of the core.
Building something and need a product engineer? Email me at me@harjotrana.com or use the form below. Share the product, the stage, and what you need next. I reply within one business day.
