Yash Kumar Singh
Software Engineer — Backend Systems & AI Applications
I build backend systems, real-time applications, and AI-powered software. My work spans distributed APIs, retrieval-augmented applications, developer infrastructure, and production web platforms with a focus on reliability, performance, and clean engineering.
Now: Working on TAI, and building TexForge.
01 — Experience
2025 – 2026
SWE Intern → Tadpole
Dec 2025 – Feb 2026 · Delhi, India
- Built 40+ secure REST APIs using NestJS and TypeScript with JWT authentication and role-based access control, supporting data isolation across client workspaces.
- Developed and containerized a cross-platform mobile application with React Native, PostgreSQL, and Prisma, cutting database query latency 20% through schema index optimization.
Project Intern → IIT Delhi
Jul 2025 – Sep 2025 · Delhi, India · Under Dr. B. K. Panigrahi
- Designed a real-time EV battery anomaly detection model to analyze multi-cell telemetry streams, isolating operating cell faults under the supervision of Dr. B. K. Panigrahi.
- Developed a cross-platform mobile client in React Native (Expo) backed by a secure Node.js streaming gateway to broadcast live battery diagnostic telemetry.
- Engineered telemetry-streaming APIs maintaining sub-100ms latency under continuous diagnostic load tests.
02 — Research Papers
Publications, preprints, and academic collaborations
ClaimLedger → A Provenance-Aware and Temporally Valid Memory Layer for Conflict- and Poisoning-Resilient RAG
Systems Research (Preprint) · 2026
Decomposes long-term LLM agent memory observations into atomic claims governed by an append-only bitemporal ledger (valid time + transaction time) with explicit lifecycle states, trust tiers, confidence scores, and conflict relationships. Gating retrieval by integrity constraints rather than similarity prevents stale, contradictory, or poisoned information from entering downstream generations.
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Innovations: Claim-level memory representation · Append-only provenance ledger · Bitemporal verification rules · Trust-aware write pipeline · Poison-memory quarantine
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Evaluation: Tested against LoCoMo-derived perturbations, achieving 1.000 Active Claim Accuracy, 1.000 Conflict Disclosure, and 0.000 Poison Activation (improving temporal boundary reasoning from 30% to 100%)
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Stack & Focus: Python · SQLite · uv · JSONL evaluation · LoCoMo benchmarks · Bitemporal ledger · RAG · Agent Memory Systems · AI Security · Temporal Databases
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Links: GitHub Code ↗ Paper PDF ↗
03 — Projects
Selected software, 2025 – 2026
01. OpenTier → High-Performance AI Knowledge Infrastructure
Jan 2026
A Rust API gateway and Python intelligence engine connected over gRPC, cutting round-trip latency 30%. A retrieval-augmented pipeline runs on PostgreSQL with pgvector and local sentence-transformer embeddings, and token streams reach the client through Rust-bridged server-sent events.
- Metrics: 30% ↓ round-trip latency · sub-120ms retrieval · 50 concurrent streams
- Stack: Rust (Axum, Tokio, SQLx) · Python (grpcio, SQLAlchemy) · Next.js · PostgreSQL/pgvector · gRPC · Docker · SSE
- Links: GitHub ↗ Docs ↗ Live ↗
02. Nyx → Decentralized End-to-End Encrypted Chat Platform
Dec 2025
Built a decentralized real-time messaging platform using Bun and Hono with Solana wallet authentication, eliminating traditional credentials. Engineered Redis Pub/Sub for low-latency message delivery, PostgreSQL with Drizzle ORM for persistence, and end-to-end encrypted 1:1 and room-based communication with an event-driven architecture.
- Metrics: passwordless authentication · real-time messaging · Redis Pub/Sub · end-to-end encrypted communication
- Stack: Bun · Hono · React (TanStack Start) · PostgreSQL · Drizzle ORM · Redis · Solana · WebSockets · Docker
- Links: GitHub ↗ Docs ↗ Live ↗
03. CodeNotify → Smart Competitive Programming Alert System
Oct 2025
Engineered a contest aggregation system that polls contest schedules from 4+ competitive programming platforms on automated cron schedules, serving real-time updates via a NestJS API deployed behind Docker and Caddy with automated HTTPS.
- Metrics: 4+ platforms aggregated · 99.9% uptime · automated HTTPS
- Stack: Next.js · TypeScript · NestJS · MongoDB · AWS · Caddy · JWT · Zod · Docker · CI/CD
- Links: GitHub ↗ Docs ↗ Live ↗
04. TrueFare → Full-Stack Real-Time Ride-Hailing Platform
Aug 2025
Built a real-time fare-bidding and ride-hailing system utilizing WebSockets for live driver-rider messaging and sub-500ms geolocation synchronization under concurrent load.
- Metrics: 100+ concurrent users · <500ms sync latency · live fare bidding
- Stack: React Native (Expo) · TypeScript · WebSocket · Node.js · MongoDB · Socket.io · Express · Zod
- Links: GitHub ↗ Releases ↗
05 — Skills
| Category | Technologies |
|---|---|
| Languages | Rust, Python, C++, TypeScript, JavaScript, SQL |
| Backend & APIs | Node.js, NestJS, Express, Axum, Tokio, Apache Kafka, Django, Zod, REST, gRPC |
| AI, ML & Agents | LangChain, LangGraph, Scikit-learn, NumPy, Pandas, RAG, Agentic Architectures |
| Databases & Caching | PostgreSQL, MongoDB, Redis, Prisma, Drizzle ORM |
| Frontend & Mobile | React, React Native (Expo), Next.js, TanStack Start, Zustand |
| DevOps & Cloud | Git, Docker, AWS, Caddy, CI/CD pipelines |
04 — Blogs
Technical deep-dives, systems engineering, and databases
WebSockets Under the Hood: A Beginner's Guide to Real-Time Communication
Jul 2025
A beginner-friendly guide to understanding how WebSockets power real-time features on the web. Explores the persistent two-way communication channel, the connection upgrade handshake (RFC 6455), ws:// vs wss:// protocols, and how it compares to traditional HTTP request-response.
- Stack & Focus: WebSockets · Network Protocols · TCP/IP · HTTP Upgrade · Real-Time Systems
- Links: Read Post →
The Role of Qubits in Quantum Computing
May 2025
An exploration of how quantum bits (qubits) power next-generation computing. Deconstructs the core principles of quantum physics used in computation—including superposition, quantum entanglement, physical flavors of qubits (superconducting, trapped ion, photonic), and the decoherence dilemma.
- Stack & Focus: Quantum Computing · Superposition · Quantum Entanglement · Cryogenics · Physics
- Links: Read Post →
06 — Background
Education
B.Tech, Computer Science & Engineering Galgotias University · Greater Noida, India · 2023–2027 · CGPA 8.4
Achievements
- 3rd place, Code Astraa Hackathon (₹20,000) — built Elder Guard, a real-time IoT elderly health-monitoring system, end-to-end in 24 hours.
- Solved 700+ algorithmic problems on LeetCode (Peak Rating: 1,721, Top 12.18% globally) and actively compete in Division 2 rounds on Codeforces.
Volunteer Work
- Technical Lead, IEEE TEMS GU (Aug 2025 – present) — Directed technical events, coding workshops, and hands-on programming hackathons, teaching systems fundamentals to over 200+ students.
- Organizer, AICSSYC (Oct 2024) — Coordinated logistics and speaker sessions for a 500+ attendee engineering conference.
Certifications
- CS50: Introduction to Programming with Python — Harvard
- CS50: Introduction to Databases with SQL — Harvard
- Getting Started with Deep Learning — NVIDIA
- JavaScript (Basic & Intermediate), Java (Basic) — HackerRank
07 — Contact
Always glad to talk systems, ai, and backend architecture.
yashkumarsingh.work@gmail.com (Personal)- yashkumarsingh@ieee.org (Academic)
- yashksingh@acm.org (Academic)
github.com/Celestial-0
linkedin.com/in/celestial0
leetcode.com/u/Celestial-0
yashkumarsingh.me
Designed and built by Yash Kumar Singh.