11 products built · full-stack & AI

Systems that work while you sleep.

Legen is the build studio of Yuvrajsinh Jadav — a systems engineer who ships production-grade platforms end-to-end. AI agents that coordinate (humans decide), real-time pipelines, multi-app ecosystems, and the infra under them. From a self-hosted NOC/SOC and a live lead-gen engine to real-estate SaaS and a 7-agent growth orchestrator — every product here runs on real code.

Selected Work

Real products, real code.

A cross-section of platforms, panels, and automation systems — many running live, captured from the actual running apps.

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About

The engineer behind Legen.

I design and ship production-grade systems end-to-end — platforms, not features. Over 3+ years I've independently architected, deployed, and maintained 10+ systems for real businesses: real-estate SaaS, B2B automation, service CRMs and admin platforms for professional teams, community growth, and network security — mobile apps, REST and real-time backends, operator/admin panels, and the infrastructure underneath.

My focus is agentic AI done safelyLLM-powered agents (Claude, GPT, and Gemini-class models) that coordinate deterministic workflows rather than generate unchecked text, with state machines, human approval gates, and authorized scopes enforced in code. That discipline runs through the CRMs and ops platforms I build for clients, a self-hosted NOC/SOC platform (Kafka + ClickHouse + OpenSearch, 13+ threat detections, an AI analyst on read-only tools), a live lead-gen engine, a 7-agent growth orchestrator, and a personal AI OS across web, voice, and a self-hosted agent runtime.

I think in systems — streaming pipelines with backpressure and replay, OLTP/OLAP separation, observability, audit-logged state transitions, and Docker/Kubernetes deploys. Final-year CS (B.Tech, 2026), grounded in algorithms, OS, and system design, applied straight to production.

Core Skills
TypeScriptReact / Next.jsReact NativeNode.js Python / FastAPIGoAgentic AILLM Agent SDKs LangGraphKafkaClickHousePostgreSQL / MongoDB RedisWebSocket / Real-timeVoice AI (Whisper · TTS) Docker / KubernetesState MachinesObservabilitySystem Design
Experience
Full-Stack Engineer · Classy Endeavors
Mumbai, India · February 2026 – April 2026 · Full-time · Hybrid
Shipped production full-stack features end-to-end — web app modules, REST APIs, and admin tooling — integrating across the team's platform and collaborating with product and design to deliver on tight cycles.
Full-Stack Developer · AC Doctor (Nouvak)
Indore · September 2024 – Present
Building and maintaining a production service CRM and admin platform for an AC home-services business — bookings, technician onboarding, customer data, offers, and rewards — and automating internal operations across the customer and field apps.
MERN Stack Developer · Phixman
New Delhi · October 2022 – March 2024
Built a centralized admin panel for electronics service operations — request intake, technician allocation, customer management, and promotions — with real-time tracking and efficient backend processes.
B.Tech, Computer Science & Engineering
Swarnim Institute of Technology, Gandhinagar · 2022 – 2026
Core CS foundations — algorithms, data structures, operating systems, and system design — applied directly to production work.
Built With Real Technology

The stack behind the products.

Every badge below is a technology shipped in one of these products — not a wishlist.

11
Products Built
30+
Apps & Services
100K+
Lines of Code
40+
Technologies
Contact

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