3d orbital · n=3 l=2 m=0

$Helloen

Khizar IrshadChaudhry

I build things.

software / hardware / physics

Computer Engineering @ DTU · Co-founder @ Neptel

See what I've builtSay helloCV ↓

$ cat about.md

About me

Building is how I learn.

I pick projects that are a little out of my reach and learn the theory by shipping the thing. The orbital next to my name is one of them: hydrogen wavefunctions sampled and rendered from scratch, because that is how quantum mechanics started to make sense to me.

I study Computer Engineering at DTU and co-founded Neptel, where we run private LLMs on on-prem GPUs so an organisation's data never has to leave the building. Before that I spent time at DTU Nanolab on entanglement and non-locality, taught a camera to read licence plates, and fitted Snake into an Arduino.

Away from the keyboard I tutor high-school students in maths, physics and coding, and I lead the youth work at DMC, where we have raised over 6M DKK for a new cultural centre.

U1

Software

LLM serving, RAG pipelines, FastAPI backends, Next.js front ends.

U2

Hardware

Embedded C/C++, sensors, LED matrices, GPUs pushed to their limits.

U3

Physics

Quantum mechanics, entanglement, simulation, and the maths under it.

$ ls projects/

Things I've built

~/projects/neptel
queryretrievervector dbLLMon-prem GPU
VRAM after (Q)LoRA + quantization−35%

01 · software

Neptel

A private GenAI platform for organisations that cannot send their data to a third party: self-hosted LLMs, retrieval and orchestration on their own hardware.

  • ›OpenAI-compatible API over quantized models on on-prem GPUs.
  • ›(Q)LoRA fine-tuning and quantization cut VRAM requirements by 35%.
  • ›RAG over vector databases with LangChain for domain-specific Q&A.
PythonLangChainFastAPINext.jsDockerHugging Face
neptel.dk ↗
~/projects/qm-simulation-of-hydrogen-orbitals

02 · physics

QM Simulation of Hydrogen Orbitals

An interactive visualisation of hydrogen orbitals rendered straight from the wavefunction ψ(n, l, m). The cloud in the hero of this page uses the same method.

  • ›CDF-based sampling turns continuous probability densities into particle positions.
  • ›OpenGL pipeline written by hand: VAOs, VBOs and custom GLSL shaders.
PythonGLSLNumPyOpenGL
GitHub ↗Docs ↗
~/projects/quantum-entanglement-research
+1−10θ = πE(θ)quantum: −cos θlocal hidden variablesS = 2√2 > 2

03 · physics

Quantum Entanglement Research

My final-year research project on entanglement and quantum non-locality, carried out with DTU Nanolab.

  • ›Studied where quantum correlations break the limit set by local hidden variables.
  • ›Analysed the collected data in Python with statistical methods to find patterns and deviations.
LaTeXPythonMATLABStatistics
Read the thesis ↗
~/projects/automatic-vehicle-registration-lookup
DKKC 27 028
detect
YOLO → 1 plate
ocr
KC27028
lookup
GET /vehicle 200 → sqlite

04 · software

Automatic Vehicle Registration Lookup

A licence-plate recognition system that finds the plate, reads it and looks the vehicle up.

  • ›YOLO for plate detection, OCR for the characters.
  • ›REST vehicle lookup with SQLite storage, regex validation and multithreaded processing.
Computer VisionYOLOOpenCVSQL
GitHub ↗Docs ↗
~/projects/snake-on-arduino

8×8 matrix

IR remote

len 04

05 · hardware

Snake on Arduino

Snake on bare embedded hardware: no operating system, 64 LEDs and an IR remote.

  • ›Rendered on an 8x8 LED matrix with IR remote controls.
  • ›Written in C/C++ for the Arduino.
ArduinoC/C++EmbeddedSensors
GitHub ↗

$ git log --experience

Experience

  1. −35%

    VRAM needed

    Co-founder · Neptel

    Present
    • ›Co-founded a private GenAI platform built around data sovereignty: private LLMs with OpenAI-compatible APIs, quantized model serving and LangChain orchestration.
    • ›Built a scalable FastAPI backend for on-prem GPU infrastructure and optimised LLMs with (Q)LoRA fine-tuning and quantization.
    • ›Integrated RAG with LangChain and vector databases for domain-specific Q&A.

  2. 128

    sales in one month

    Sales Consultant · Telenor A/S

    2025 — 2026
    • ›Closed 128 sales in a month, 2nd place at Telenor Denmark.
    • ›Monthly cross-selling rate of 48%, among the highest in the region.

  3. 6M+

    DKK raised

    Youth President · DMC, non-profit organisation

    2023 — Present
    • ›Led fundraising that has brought in 6M+ DKK for our upcoming cultural centre.
    • ›Organise weekly Sunday gatherings for youth development and community engagement.

  4. ≈40%

    academic improvement

    Tutor · Private & MentorDenmark

    2024 — Present
    • ›Mentor high-school students in mathematics, physics, chemistry and coding.

$ cat pinout.txt

Skills

  • Python
  • C / C++
  • TypeScript
  • SQL
  • LangChain
  • RAG
  • Hugging Face
  • (Q)LoRA

KIC

  • Curiosity
  • Quantization
  • Next.js
  • FastAPI
  • Docker
  • Kubernetes
  • Azure
  • Git

● software● hardware & infra● pin 16: VCC

$ ls ~/beyond

Beyond the code

speedcubing

World Cube Association

solved

astronomy

The sky over Copenhagen, now

moon
…
sun
…
LST
--:--:--
at
55.68° N, 12.57° E

languages

Six of them

  • Hello

    English

  • Hej

    Danish

  • آداب

    Urdu

  • नमस्ते

    Hindi

  • تہاڈا کی حال اے

    Punjabi

  • توں چوں اے

    Baluchi

$ cat education.md

Education

  • Technical University of Denmark (DTU)

    B.Eng. in Computer Engineering

    Expected December 2028 · Kongens Lyngby

  • NEXT Sukkertoppen Gymnasium HTX

    Mathematics A, Physics A · Grade 10.2 / 12 (≈ 3.7 / 4.0 GPA)

    Graduated June 2026 · Valby

volunteering:Science AkademietSATHDMCWorld Cube Association

$ ./say-hello.sh

Say hello

Have an idea, an opportunity, or just want to chat? Say hello.

khizar.dev@gmail.comLinkedIn ↗GitHub ↗