Charanjot Singh

§ 02 · About

A small model of me.

\overset{y}{^}_{charanjot} = softmax (W x + b)

input x

ML0.90DL0.80Backend0.85GenAI0.90Systems0.70

softmax(Wx + b)

ML Engineer38.0%

Backend Engineer22.8%

GenAI Engineer31.0%

Research8.2%

z = [3.06, 2.55, 2.85, 1.53]

Fig. 1 — A four-way softmax over the roles I fit. Drag any input; z = Wx + b and the probabilities are recomputed live. Right now it predicts ML Engineer with p = 0.38.

Education

National Institute of Technology, Jalandhar

B.Tech, Computer Science & Engineering · 2024 – 2028

8.17CGPA (till Sem 4)

Information Security10/10

Mathematics10/10

Computer Networks9/10

Theory of Computation9/10

§ 03 · Live systems

Things I've shipped.

Status is checked from your browser as the page loads. Open a card to run the real app without leaving.

◌ DEMO-ONLYakharrtt — · uptime —

Akhar

A Punjabi-aware tokenizer and a GPT trained from scratch.

−28.6% token fertility+12.3% bits-per-char+40.1% context efficiency

repo soon∑ math

◌ CHECKINGsite60rtt — · uptime —

Details & live site

site60

One WhatsApp message becomes a live website in about 60 seconds.

~12KB pages<1.5s LCP on 4G~$1 per site

star live∑ math

◌ CHECKINGfinsimrtt — · uptime —

Play here, no install

FinSim

A walkable 2D metaverse for practising trading, with live bias coaching.

14K+ LOC75+ modules<500KB<50ms coaching

star live∑ math

◌ CHECKINGjotrrtt — · uptime —

Run it here

Jotr

A teleprompter that follows your voice and pauses when you look away.

60+ users15 activeon-device only

repo soonlive∑ math

◌ CODEverifinrtt — · uptime —

VeriFin → FinTrace

RAG that grounds financial answers in your own documents.

star∑ math

Earlier projects · 4

ResQPets_finalPublic

Stray-animal rescue platform: report a sighting with location, track rescues on a dashboard.

TypeScriptStarpost code

social_media_analysisPublic

Engagement analytics for posts: reaction mix, sentiment over time and content-type breakdowns.

PythonStar post code

Fitness SoulPublic

AI fitness companion with personalised workout and diet recommendations.

Webpost

Segmented-NetworkPublic

Segmented enterprise network in Cisco Packet Tracer: VLANs, router-on-a-stick, DHCP, ACLs, SSH and port security.

Cisco IOSStar code

§ 04 · Research

Papers & experiments.

● open-sourced

Akhar: Script-Aware Tokenization for Gurmukhi

English-trained BPE fragments Punjabi text, costing up to 2.4× more tokens. A grapheme-preserving BPE cuts token fertility by 28.6%, improves bits-per-character by 12.3% and raises context-window efficiency by 40.1%, measured across four tokenizers and two seeds under equal compute.

TokenizationLow-resource NLPTransformers

● in progress

Token-Efficient Prompting

Reducing LLM token consumption while keeping task effectiveness equal. First paper, in progress; no results reported yet.

LLMsPromptingCost

● in progress

Fake-News Detection with Deepfake Signals

Combining text-based fake-news detection on the LIAR dataset with deepfake-media signals. Work in progress; no results reported yet.

NLPMisinformationLIAR

§ 05 · Writing

Essays & build notes.

Longer thinking: where agentic software is heading, and how my systems are actually put together.

Essay · June 2026

Nobody’s prompting anymore.
We’re writing loops.

From punch cards to agent harnesses: seventy years of handing the machine one more job.

Charanjot Singh

loop.py — zsh

# loop.py — the agent doesn't wait for me anymore
 
while not goal.done():
    plan   = model.reason(goal, history)
    result = harness.act(plan)        # edit, run, search
    report = checks.verify(result)    # tests, lint, diff
    history.append(plan, result, report)
 
hand_off(history)
 
$ python loop.py --goal "fix flaky checkout test"
iter 01  reason → act → verify   ✗ 3 failing
iter 02  reason → act → verify   ✗ 1 failing
iter 03  reason → act → verify   ✓ all green
done in 3 iterations · handing off for review

essay · 20 Jun 2026 · 7 min read

Nobody’s Prompting Anymore. We’re Writing Loops.

Seventy years ago we wired logic by hand. Now the people who build Claude Code and Codex say it out loud: stop talking to the agent, build the loop that talks to it for you. A short history of every rung, and what loop engineering changes.

AI agentsSoftware engineeringLLMs

Read on Medium Download cover

build notes · 2026 · 6 pages · PDF

How I built site60

A business website in minutes, built entirely inside WhatsApp. The architecture, the eight steps from “Hi” to a live site, and why each piece of the stack was chosen.

System designWhatsApp Cloud APICloudflare

Open the PDF

§ 06 · Experience

Where I've worked.

Aug 2026 – Present · Remote · open sourceContributor · AI Agent Track @ GirlScript Summer of Code

Contributing to open-source AI-agent projects in GSSoC’s AI Agent Track.

AI agentsOpen sourceGit

Jun – Jul 2026 · New Delhi · UTS teamSoftware Engineering Intern (Industrial Training) @ Centre for Railway Information Systems, Indian Railways

Applied machine learning to high-volume data from the Unreserved Ticketing System, the IT backbone serving millions of daily passengers.
Built supervised-learning workflows and ran a categorical-encoding experiment on ticketing data.
Prototyped a multimodal RAG pipeline with Whisper, CLIP, ChromaDB, LangGraph and AWS Bedrock.

scikit-learnWhisperCLIPChromaDBLangGraphAWS Bedrock

Jun 2024 – Jul 2025 · Remote · CanadaProject Intern (Paid Contract) @ Connect The Clinics

Shipped full-stack MERN features end to end for a live clinic-connectivity platform.
Designed REST APIs and owned the Firebase data layer.
Delivered React and Node.js UI improvements used in daily operations.

MongoDBExpressReactNode.jsFirebase

§ 07 · Contributions

Code, contests, open source.

GitHub · live@charanjot27 ↗

—contributions in the last year

— repos— stars— followers

LeetCode

500+

solved · rating 1600+

CodeChef

1630

DSA rating · contest 1200+

Open source

GlobaLeaks · Contributions incl. a docs fix—

PostHog · Delete action for the task sidebar (issue #3555)—

opensre · CrowdStrike Falcon LogScale integration (issue #4160)—

§ 08 · Recognition

Certificates, awards, press.

Flip through below, or open the full stack from the button in the corner any time.

01 / 15 · certificate

Orchestrate · Rank #436 of 1,983

HackerRank · built and deployed an AI agent · Aug 2026

#436HackerRank Orchestrate, of 1,983

Top 1%JEE Main 2024, of 1.5M+ candidates

Top 1.2%JEE Advanced 2024, qualified

4thHackMol 6.0

2×Smart India Hackathon college finalist

Top 10Thapar Makethon 8

Top 100Level SuperMind, India

INSPIREAward, Government of India

2× 1stInter-institutional Robotics & IoT

1stDAV Science Galleria, D.A.V. College (Class VIII)

§ 09 · Before the models

Robots, circuits, first apps.

Where it started: hardware builds and early web projects from school and first year.

Oct 2017 · Class VI
31 self-made models at Jigyasa, DAV Pakhowal Road, built from waste material. Covered by Daily Post.
Nov 2017 · Class VI
Cleaning Robot judged best in its category at the inter-school DAV Youth Fair, DAV University, Jalandhar.
Oct 2019 · Class VIII
1st Prize, DAV Science Galleria at D.A.V. College, Jalandhar: a college-level exhibition, competing alongside college students.
2020 · Class IX
Student Innovation Challenge, SmartCircuits; later the INSPIRE Award and two 1st prizes at inter-institutional robotics and IoT championships.