Skip to content
View Abh-igyan's full-sized avatar
  • Digboi, Assam, India
  • 03:43 (UTC +05:30)

Highlights

  • Pro

Block or report Abh-igyan

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
Abh-igyan/README.md

Abhigyan Tiwari

Backend & Systems Engineering | Distributed Systems + Applied AI | Building reliable, production-oriented software

CSE Undergraduate at NIT Silchar (2024–2028) · Backend Engineering · Distributed Systems · Applied AI

Email · LinkedIn · Codeforces · LeetCode

Currently working on

  • Backend systems and distributed infrastructure — sandboxed execution, worker-coordinator architectures, event-driven pipelines
  • Applied AI/ML for real-world decision systems: risk scoring, recovery workflows, traffic and routing intelligence
  • Low-latency systems and quantitative technology, alongside competitive programming and open source

Flagship projects

Pratyānayana — AI agent for merchant revenue recovery An autonomous agent that detects payment failures and checkout abandonment, predicts recoverability, and makes bounded Retry/Wait/Switch/Stop decisions using customer history and expected-value economics, executed through event-driven, idempotent Razorpay webhooks with causal recovery attribution. Benchmarked on 5,000 journeys — recovered ₹3.65 Cr of ₹5.00 Cr at risk, ₹45.5L incremental lift. FastAPI CatBoost Razorpay APIs SQLite LLM

Vahini — distributed trading-system benchmarking platform (demo) A distributed platform for evaluating trading engines: automated correctness validation, a Go-based load-generation framework, and a sandboxed Docker + gVisor execution pipeline for untrusted participant code, orchestrated via FastAPI worker-coordinator architecture. Sustains 1.3K+ TPS under 1,000 concurrent traders. FastAPI Go Docker gVisor AWS EC2/RDS PostgreSQL

ParivahanSaathi — AI/ML traffic intelligence and routing (demo) A city-scale traffic intelligence system for Bengaluru: a multi-stage inference pipeline for incident-based closure prediction, impact scoring, and diversion routing, validated in real time against Mappls traffic-aware APIs. 8K+ incidents, 56 partitioned OSM graphs, 94% memory reduction (4.8 GB → 280 MB), sub-150 ms warm route generation. FastAPI CatBoost OSMnx NetworkX AWS Mappls APIs

Other builds

  • TitanDB — Bitcask-inspired KV store in C++ with O(1) hash-index lookups, disk-backed storage, log compaction, and crash recovery
  • TrafficTalk — real-time network traffic analysis with an LLM-powered (Groq + LLaMA 3) hybrid agent for insights
  • FXStatArb — quantitative FX engine
  • CAPO — cross-asset portfolio optimization

Tech stack

C++, Python, Go, FastAPI, Docker, AWS, PostgreSQL, MySQL, Linux, Git

Also working with: REST APIs, CatBoost, LLMs, SQLite, distributed systems, performance optimization, data structures & algorithms.

Open source

  • Layer5 — ongoing contributions to documentation and UI
  • Apothesis — merged PR resolving cross-platform build failures on Windows
  • FOSSOLOGY (Atarashi) — accepted PR fixing runtime crashes in the TF-IDF agent via exception handling in Nirjas-based comment extraction

Achievements

  • Semifinalist, GridLock Hackathon (Flipkart × Bengaluru Traffic Police)
  • Semifinalist, Tata InnoVent
  • Top 2.1% of teams (solo), IICPC Summer Trading Hackathon 2026
  • 2nd Prize, Arbitrage Arena 2026, Indian Institute of Science
  • 3rd Position, IISc Honour Code Hackathon
  • Rank 2,245, Meta HackerCup Round 1 2025

Building systems where correctness and latency matter more than lines of code.

Pinned Loading

  1. Pratyanayan Pratyanayan Public

    Pratyānayana: An AI Agent for Merchant Revenue Recovery

    Python

  2. TradingSystem-Benchmarking-Hosting-Platform TradingSystem-Benchmarking-Hosting-Platform Public

    Vahini is a distributed benchmarking and hosting platform for evaluating trading engines. It accepts source-code ZIP submissions, builds and runs them in isolated Docker containers, validates excha…

    Python

  3. IRP-Incident-Response-Planner IRP-Incident-Response-Planner Public

    Event-Driven Congestion (Planned and Unplanned) incident response system built with FastAPI, SQLite, CatBoost, NetworkX/OSMnx graph assets, and Leaflet. The system forecasts event-related traffic i…

    HTML

  4. CPP-thread-pool CPP-thread-pool Public

    Production-oriented fixed-size thread pool in C++17 with a bounded task queue, backpressure, instrumentation, graceful shutdown, and a benchmark matrix that exposes scaling behavior across workload…

    C++

  5. TitanDB TitanDB Public

    A lightweight, log-structured key-value store built from scratch in C++17, inspired by Bitcask-style storage engines. TitanDB demonstrates core systems concepts like persistent storage, crash recov…

    C++

  6. FXStatArb FXStatArb Public

    This project implements a systematic FX statistical arbitrage engine designed to exploit cross-currency dependencies while maintaining strict market neutrality.

    Jupyter Notebook