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sagar0163/README.md
Sagar Jadhav — Software Engineer building production AI agent systems, API gateways & developer tools

I build production AI agent systems and API infrastructure — LangGraph workflows that handle real dispatch and document processing, gateways that secure live banking traffic, tools that fix their own CLI errors. Currently doing that as a Software Engineer at Cateina Technologies, across Fintech and IoT.

What I've shipped

  • Production LangGraph agents — ATM-dispatch triage/classification/outreach/verification flow with TTS integration and Postgres-checkpointed state, plus an MCP-integrated document-processing backend. Not a demo — live in Convexic.
  • TYK API Gateway on a live banking system — rate limiting, encryption, RBI-compliant auth for The Cosmos Bank; later designed and hardened a from-scratch Kubernetes deployment (cluster sizing, image hardening) for a second client.
  • APIX Gateway — Node.js API gateway I built solo: 35+ plugins, 8 auth methods, 5 load-balancing algorithms, circuit breaker, OpenTelemetry tracing, real-time admin dashboard.
  • Nebula-CLI — self-healing terminal agent with AI-powered command recovery, backed by a chaos-testing harness (nebula-cli-chaos) I wrote to validate it under fault injection.
  • Multi-tenant AI platforms (private) — Cocayn and Lynqx: Fastify/Next.js + Temporal.io orchestration, MCP tool integration, full OpenTelemetry observability.

Stack

TypeScript Python Node.js Go · LangGraph LangChain MCP · Express Fastify FastAPI Next.js React Vue Angular · PostgreSQL MongoDB Redis · Docker Kubernetes OpenShift Temporal.io

Public projects

Project What it does
APIX Gateway Production-grade Node.js API gateway — plugins, auth, load balancing, observability
Nebula-CLI Self-healing terminal agent with AI command recovery
nebula-cli-chaos Chaos-testing framework for CLI apps — fault injection, resilience validation
LLM Manager Multi-provider LLM wrapper with automatic failover and cost optimization
Nebula-Writer-2 AI writing assistant with a 3-loop quality system (auto-rewrite, HITL, continuity lookahead)
Argus Pentest Autonomous AI penetration testing framework, hybrid black/white-box, CI/CD-integrated

→ 39 public repos in total, including terminal tools and a Godot 4 dungeon-builder game.

Pinned Loading

  1. nebula-cli-chaos nebula-cli-chaos Public

    Chaos testing framework for CLI applications — fault injection, resilience validation, automated recovery

    JavaScript 1

  2. Nebula-Writer-2 Nebula-Writer-2 Public

    AI-powered writing assistant with multi-model support, document analysis, and content generation

    Python 1

  3. Nebula_cli Nebula_cli Public

    Self-healing terminal agent with AI-powered command recovery and workflow automation

    JavaScript 1

  4. apix-gateway apix-gateway Public

    Modern Node.js API Gateway with rate limiting, authentication, caching, analytics, and plugin architecture

    JavaScript

  5. argus-pentest argus-pentest Public

    Argus - Autonomous AI Penetration Testing Framework

    Python

  6. llm-manager llm-manager Public

    Resilient multi-provider LLM wrapper with automatic failover, load balancing, and cost optimization

    Python