Sudhanshu Singh - Systems Architecture
Welcome to my Engineering Portfolio. This portal houses the System Design Documentation and Production-Ready Source Code for the top architectures I have engineered.
Philosophy
Senior backend engineering isn’t just about syntax; it’s about trade-offs, distributed systems, and resiliency.
The systems documented here demonstrate my ability to:
- Design for High Availability (HA) and Global Scale
- Implement Enterprise-Grade Security (SSO, SCIM)
- Ensure Deep Observability (OpenTelemetry)
- Decouple compute-heavy workloads safely (BullMQ, Redis)
Core Architectures
| Architecture | Focus Area | Technologies |
|---|---|---|
| Enterprise Auth Stack | Zero-Trust Identity, SSO Gateway | SAML, JWT, SCIM, AWS Secrets Manager |
| Distributed Queue Engine | Event-Driven, Priority Processing | Redis, BullMQ, Node.js Workers |
| Multi-Region Data Residency | Global Localization, Compliance | MongoDB Atlas Zone Sharding |
| LLM Orchestration Pipeline | Resilient AI Routing, Validation | LangChain, Zod, GPT-4, Gemini |
| Distributed Tracing | Microservice Observability | OpenTelemetry, Pino, Express |
Navigate using the sidebar to explore deep-dive system design reviews, complete with architectural Mermaid.js diagrams and code explanations.