Devansh Kumar

Building systems that scale. From real-time fraud detection engines to cross-platform mobile experiences. Software Engineer, ML Practitioner, and IEEE Student Branch Chairperson focused on shipping robust, production-ready code.

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About Me

I build full-stack platforms, risk intelligence engines, gamified desktop apps, and peer economies — all with clean architecture and real users in mind.

Engineering Philosophy

  • Decisions matter more than predictions
  • Architecture before implementation
  • Design for failure, not ideal cases
  • Clarity over cleverness
  • Measure trade-offs explicitly
  • Systems over scripts

Systems I Build

Risk EnginesDesktop AppsCredit EconomiesAuth SystemsData DashboardsMobile AppsREST APIsFraud Detection

Proof of Thinking

    Risk-aware fraud architecture

    Cost-sensitive modeling

    Consequence-weighted thresholding

    EDA-driven reasoning

    Layered decision architecture

    The Extremity Principle

    SIMPLY UNIVERSE - published book

    IEEE Chairperson - IEEE Student Branch Bennett University

Technical
Arsenal

CORE
Python
Python
TypeScript
TypeScript
JavaScript
JavaScript
C++
C++
C
C
Java
Java
Dart
Dart
React
React
Next.js
Next.js
FastAPI
FastAPI
Node.js
Node.js
Flutter
Flutter
Electron
Electron
Tailwind CSS
Tailwind CSS
Zustand
Zustand
PostgreSQL
PostgreSQL
SQL
SQL
Firebase
Firebase
Supabase
Supabase
Redis
Redis
SQLite
SQLite
Scikit-learn
Scikit-learn
Pandas
Pandas
NumPy
NumPy
Docker
Docker
Git
Git
GitHub Actions
GitHub Actions
Vercel
Vercel

Experience

Software Developer Intern @ BuildIt Service

Gurugram, Haryana
Mar 2026 – Present
  • Developing lead generation automation pipelines and REST API integrations for client acquisition workflows at a full-service digital agency.
  • Building client-facing web applications using modern JavaScript frameworks; contributing to backend system architecture and deployment.
  • Implementing internal dashboards and tooling to automate agency reporting and operational workflows using Python and SQL.
  • Working in agile sprint cycles with cross-functional delivery teams across multiple concurrent client projects.

Featured
Projects

Scroll to explore →

01
🛡️

MARI

MARI — Fraud Engine

A 3-layer fraud detection engine trained on 284k transactions. Combines risk assessment with novelty detection.

  • 5-member calibrated XGBoost bootstrap ensemble
  • Isolation Forest anomaly detection pipeline
  • Sub-100ms real-time inference REST API
PythonFastAPIXGBoostPostgreSQL
02
🎬

Flutter OTT App

Flutter OTT App

Cross-platform OTT streaming application featuring local auth, content catalogs, and a cinematic user interface.

  • BLoC-pattern state management architecture
  • SQLite-backed local persistence for offline access
  • Seamless cross-platform performance optimizations
FlutterDartSQLiteBLoC
03
🌿

Biome PWA

Biome PWA

A world-building productivity application featuring focus timers, daily planners, and interactive leaderboards.

  • Scalable Firebase backend for cross-device sync
  • Real-time global progression leaderboards
  • Electron desktop wrapper with native controls
ReactTypeScriptFirebaseElectron
04
🔄

SkillSync Platform

SkillSync Platform

A peer-to-peer skill economy platform where users earn credits by teaching and spend them on premium courses.

  • AI-powered content validation and scoring
  • End-to-end payment flow using Razorpay
  • Relational data scaling via Supabase and RLS
ReactNode.jsSupabaseRazorpay

Open Source
Activity

GitHub Statistics

🐙

Overview

📁7Public Repos
👥1Followers
➡️2Following
📅2024Member Since

Top Languages

JavaScript
30%
TypeScript
28%
Python
22%
Dart
12%
C++
5%
HTML
3%

Contribution Activity

Devansh's GitHub contribution chart

Recent Blog

Follow on LinkedIn for updates →
🌿

Designing Biome: Gamification That Actually Works

How I turned Pomodoro sessions into a world-building game with rarity systems, territory expansion, and real-time leaderboards — and why most productivity apps get gamification wrong.

Coming soon
🔄

Building a Peer Economy from Scratch with SkillSync

Credit systems, AI content validation, and the challenge of designing a marketplace where knowledge is currency — lessons from building a full-stack peer learning platform.

Coming soon
🧠

INTJ Notes: On Systems Thinking in Software

A reflection on how personality shapes engineering philosophy — and why I obsess over architecture before writing a single line of code.

Coming soon