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● OPEN TO SDE / AI ROLESUTTAR PRADESH, IN · 28.6N 77.2E
hello, world

Abhishek Kumar

I build retrieval pipelines, concurrency-safe backends, and low-latency matching engines — with the benchmarks to back each one.

Abhishek Kumar
// abhishek.jpg
2.6M/s
ORDERS MATCHED
800 NS P99
80.8%
RAG RECALL@5
UP FROM 59.6%
1900+
LEETCODE RATING
871 SOLVED
01 / ABOUT & STACK

Engineer who ships systems, not just screens.

Three years of self-directed building alongside coursework — type-safe APIs, retrieval pipelines, and ML experiments that generalize past the toy dataset. My current obsession is the messy seam between deterministic systems and probabilistic models.

languages
PythonC++JavaScript
frontend
ReactNext.jsTailwindHTML / CSS
backend
FastAPIDjangoPostgresMongoDB
ai / ml
PyTorchTensorFlowscikit-learnPandas / NumPy
tools / ops
GitDockerVS Code
// WHOAMI
basedUttar Pradesh, IN
roleFull-stack & AI dev
focusagents, backend, data
speaksEN · HI
coffeeblack, cold
$ git log --author=abhishek
> 200+ commits across 31 repos
02 / SELECTED WORK

Three systems I’d defend in a room.

Flagships get the full case study — problem, numbers, stack. Everything else compresses into one scannable line.

PRJ-01FLAGSHIP2026

Scrybe

A RAG documentation assistant that crawls a docs site, indexes it, and answers with grounded citations. Hybrid BM25 + dense retrieval, cross-encoder reranked, served sub-second by Groq Llama 3.3 70B.

59.6 → 80.8%
RECALL@5, HYBRID + RERANK
2,500+
PAGES CRAWLED & EMBEDDED
PythonFastAPIReactChromaDBGroqPlaywright
Scrybe interface — screen 1 of 5
PrestoPass interface — screen 1 of 5
PRJ-02CONCURRENCY · 2026

PrestoPass

High-concurrency ticketing built for flash sales. Atomic Redis/Lua seat locks give a contested seat exactly one winner; a FIFO waiting room streams queue position over Socket.IO.

0 oversold
2,000 VUs vs. 500 SEATS
SET NX EX
ATOMIC LOCKS IN LUA
FastAPIRedisPostgreSQLSocket.IO
PRJ-03LOW LATENCY · 2026

TradeXchange

A limit order book with a lock-free, zero-allocation C++20 matching core on strict price-time priority. A FastAPI gateway packs orders into 32-byte structs and pipes them over ZeroMQ.

2.6M/sec
INSERTS · 800 NS P99
10k ops/s
OVER ONE WEBSOCKET
C++20ZeroMQFastAPIWebSockets
TradeXchange interface — screen 1 of 2
MORE BUILDS01 / 03
PRJ-042026

Swagger2Drawio

CLI + library converting OpenAPI specs into Draw.io diagrams via a custom graph engine.

PythonOpenAPIDraw.io XMLPytest
SOURCE ↗
PRJ-052026

TaskFlow

Distributed task scheduler — hand-built priority queue, worker pool, cron, live dashboard over WebSockets.

Next.jsFastAPIWebSockets
SOURCE ↗
PRJ-062025

Brain Tumor Classifier

Fine-tuned VGG16 classifying MRI scans into four tumor classes, served via Flask.

TensorFlow/KerasVGG16Flask
SOURCE ↗
03 / RESEARCH
  1. AUG 2025 — DEC 2025 · SONIPAT, HARYANA

    Research Intern

    Indian Institute of Information Technology Sonepat

    Applied neural solvers to stiff singularly perturbed differential equations — the regime where classical numerical methods need punishing mesh refinement to resolve boundary layers.

    • Researched Wavelet Physics-Informed Neural Networks (PINNs) and Fourier Neural Networks, applying both to stiff singularly perturbed differential equations.
    • Benchmarked L-BFGS against Adam with adaptive meshing, improving convergence enough to capture the extreme boundary layers at both interval endpoints.
    PythonPyTorchPINNsFourier Neural NetworksL-BFGS
04 / EDUCATION

Where the foundations got laid.

2023 – 2027 · UTTAR PRADESH, IN

B.Tech, Computer Science

IIIT Sonepat

Coursework across DSA, operating systems, DBMS, computer networks, and machine learning. Final-year focus on applied ML and full-stack systems.

8.53/10
CGPA · THRU SEM 6
2027
EXPECTED GRADUATION
// TELEMETRY
1907LEETCODE · MAX 1949
1645CODECHEF 3★
1571CODEFORCES SPECIALIST
871SOLVED
251ACTIVE DAYS
FULL PROFILE ↗
05 / CERTIFICATIONS

The paper trail, at a glance.

4 completed programs, plus 10 Google Cloud Skills Boost badges — nothing hidden behind a click.

CRT-01 · 2026 · UDEMY
Complete Data Science, Machine Learning, DL, NLPBootcamp
VIEW ↗
CRT-02 · 2026 · UDEMY
FastAPI Full Stack Mastery: Build, Test, Deploy
VIEW ↗
CRT-03 · 2026 · UDEMY
Full Stack Generative and Agentic AI with Python
VIEW ↗
CRT-04 · 2026 · CODE AND DEBUG
Low Level System Design in Python
VIEW ↗
06 / CONTACT

Open to SDE / AI roles.

abhi3122004ak@gmail.com