Yash Kumar Singh

Experience

2025 to 2026

SWE Intern → Tadpole

Dec 2025 to 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 to 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.

Research Papers

Publications, preprints, and academic collaborations

ClaimLedger → A Provenance-Aware, Bitemporal Claim-Integrity Layer for Agent Memory

Systems Research (Preprint) · 2026 · v1.0.0

An append-only, claim-level memory integrity layer for long-term agent memory in agentic RAG. Instead of storing memory as text chunks or vector entries, ClaimLedger governs retrieval eligibility at the atomic claim level, tracking derivation provenance, bitemporal metadata (valid time vs. transaction time), trust tiers with confidence gates, and lifecycle states. Integrity constraints, not similarity, decide what reaches downstream generation, so stale, contradictory, and adversarially poisoned writes are filtered, superseded, or quarantined before they can influence a response.

• Innovations: Claim-level memory decomposition · Append-only provenance ledger · Bitemporal valid-time/transaction-time tracking · Trust-tier and confidence gates · Lifecycle governance (active, candidate, superseded, quarantined) · Poison-write quarantine against sleeper and agent-poisoning attacks

• Evaluation: REALTALK-derived benchmark of 2,387 cases from 10 authentic conversations (219 sessions, 8,944 turns, 726 evidence-linked human-annotated questions) with controlled conflict and poison overlays; identical results across three deterministic seeds. Versus naive active memory: Active-Claim Accuracy 0.392 → 1.000, Conflict Disclosure 0.000 → 1.000, Poison Activation 1.000 → 0.000

• Stack & Focus: Python · SQLite · uv · CLI · JSONL/Plotly reporting · REALTALK benchmarks · Bitemporal ledger · RAG · Agent Memory Systems · AI Security · Temporal Databases

• Links: GitHub Code ↗ Paper PDF ↗

Projects

Selected software, 2025 to 2026

01. OpenTier → High-Performance AI Knowledge Infrastructure

Jan 2026 to Present

Architected a dual-runtime microservices platform with a low-overhead Rust (Axum/Tokio) gateway and a decoupled Python intelligence engine over gRPC/HTTP/2, enforcing token-bucket rate limiting and sub-millisecond route dispatch. Engineered a multi-tenant hybrid RAG pipeline on Qdrant that fuses 3072-dimensional dense embeddings with sparse BM25 indices via server-side Reciprocal Rank Fusion, delivering sub-100ms retrieval under strict tenant data isolation.

• Metrics: sub-100ms hybrid retrieval · sub-ms route dispatch · 3072d dense + BM25 fusion via RRF · strict tenant isolation
• Stack: Rust (Axum, Tokio) · Python (gRPC, asyncio) · Next.js 16 · Qdrant · Redis 8 Streams · PostgreSQL 18 · gRPC/HTTP/2 · SSE · Docker
• 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 using 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 ↗

Skills

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 →

Background

Education

B.Tech, Computer Science & Engineering Galgotias University · Greater Noida, India · 2023 to 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 to 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

Contact

Always glad to talk systems, ai, and backend architecture.

• yashkumarsingh.work@gmail.com (Personal)
• yashkumarsingh@ieee.org (Academic)
• yashkrsingh@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.