>_ kushagra.fg

// full-stack engineer · author of the Flow-Wing language

Kushagra Rathore

I write production software end-to-end — including the compiler that serves this page.

full-time experience (post-internship) · full-stack & systems

01

Lexer_

the stack, tokenized — grouped by token class

02

Parser_

building the AST — projects, as nodes. Expand a node to descend.

FeaturedDecl

Flow-Wing — a programming language

C++ · LLVM

Experimental language blending static + dynamic typing. Custom Lexer, Parser, IR. AOT & JIT compilers, a REPL, garbage collection, modules, OOP. Full LSP for VS Code + build servers. Actively versioned, with large multi-file changes across the compiler.

  • Lexer
  • Parser
  • IR
  • AOT
  • JIT
  • REPL
  • GC
  • LSP
  • GTest
AppDecl

Foundo — AI lost & found

React Native

Solo, production Android app. AI auto-matching of lost↔found reports, real-time chat over WebSockets, free OSS map via WebView (zero Google Maps cost). Backed by Node/Express, AWS RDS MySQL + S3, Docker. Tested with Jest + Detox E2E.

  • RN/Expo
  • Node
  • Express
  • MySQL
  • S3
  • Docker
  • WebSockets
  • Detox
github ↗first mobile app · shipped to production
AppDecl

Eimentum — social platform

MERN

Full social network: profiles, friend graph, disappearing stories, real-time messaging. MongoDB · Express · React · Node, Redux state, Socket.io, JWT + Bcrypt stateless auth. Separate chat server.

  • MongoDB
  • Express
  • React
  • Node
  • Redux
  • Socket.io
  • JWT
frontend + backend + chat server
DeclList

+ more

additional

AnimeHub — content discovery & cataloging. Coin-Tracker-Interactive — live crypto metrics. YouTube Downloader — multi-format, React. Voice News — voice-driven news portal.

  • AnimeHub
  • Coin-Tracker
  • YT-DL
  • Voice-News
03

Static Analysis_

an earlier chapter — competitive programming. Not active now; kept for the record.

CodeChef 1908 · 4★ LeetCode 1851 1,600+ solved #38 global · CookOff ’21 CP mentor (Google DSC) · CodeChef problem-setter — c. 2021–22

04

Optimizer_

the result, up front — hover any pass to see how it was done.

0lower cloud bill
@ Badho · how

Zero-downtime blue-green migration · pg_repack on bloated tables · AWS Athena/S3 archive for historical events.

0faster for every user
@ DocsUp · how · internship

Full API restructuring, Admin Panel redesign, major bug kills on houseofplug.com.

0smaller app to download
@ Badho · how

React Native upgrades · MMKV sub-ms secure storage · RevoPush background OTA.

goneGraphQL CPU bottleneck
@ Badho · how

Untracked 40% redundant tables · pruned millions of stale logs · short-circuited the Rules Engine.

0 lostanalytics at 1M+/day
@ Badho · how

Meta + Google Ads CAPI · automated intraday backups + unified queries beating BigQuery’s 1M/day cap.

automatedcatalogue + invoicing
@ Badho · how

TypeSense catalogue matching · multi-page invoice ingestion via Mistral OCR · auth → Azure Functions (Datadog-secured OTP).

● current
Badho Technologies Full-Stack Engineer
Jul 2024 — Present · Gurugram

earlier — internships & education

Badho TechnologiesFull-Stack InternJan 2024 — Jun 2024
BuyProperlyFull-Stack Intern · HubSpot, Google Sign-In, RecoilJun 2022 — Sep 2022 · Remote, Toronto
DocsUp Pvt LtdFull-Stack InternOct 2021 — Jan 2022 · Delhi
MediCaps UniversityB.Tech CSE · CGPA 9.35Graduated May 2024 · Indore
05

JIT & REPL_

this is real. type a command. help to start. ↑/↓ history · Tab completes.

kushagra@flowwing: ~/career jit
kushagra@flowwing:~$

tip: try whoami, projects, run, sudo hire

06

Codegen_

emitting executable — let’s ship something together