Nishchal Singh

Software Engineer

Building production-ready software systems

Projects

AuthorAI

AI-powered content & image generation SaaS

A production SaaS platform that helps solo founders turn their real product activity into trust-building, conversion-ready content. Features AI-powered insight extraction, multi-format content generation, and DALL·E integration for visuals.

For: Solo founders and creators

Next.jsTypeScriptClaude API+4

Platform

Lexnify

Developer tools & engineering utilities platform

A live SaaS platform providing high-signal developer tools and engineering utilities. Focused on performance-first architecture and tools that solve common engineering problems effectively.

For: Software engineers and developers

Next.jsTypeScriptPostgreSQL+1

SaaS

Intervya

AI-powered coding assessment & interview practice SaaS

A production SaaS platform that helps engineers prepare for technical interviews through realistic practice. Tracks problem-solving patterns, identifies repeated mistakes, and provides comprehensive feedback powered by GPT-4 Turbo.

For: Software engineers preparing for technical interviews

Next.jsTypeScriptPostgreSQL+5

SaaS

AI Cost Usage Insight

Finance-first AI cost intelligence platform

A comprehensive SaaS platform providing real-time visibility into AI usage costs across multiple providers. Helps engineering and finance teams track spending, identify anomalies, forecast future spend, and receive proactive alerts—all without storing prompts or responses.

For: Engineering and finance teams using AI

Next.jsTypeScriptPostgreSQL+5

Mobile

Challenge Manager

React Native Android app for structured challenge & habit management

A production-ready React Native Android application for managing structured challenges with participant tracking, automated reminders, and comprehensive analytics. Built for organizers who run time-bound challenges and need professional tools.

For: Challenge organizers (meditation teachers, fitness trainers, course creators)

React NativeTypeScriptFirebase+3

Mobile

Rhymely

Gentle, awareness-first habit app for mindful living

A calm habit app that helps users notice their habits (e.g. sugar and junk food) through daily check-ins, soft streaks, and emotional feedback. Clean minimal design, non-judgmental language, and one primary action per screen. Live on web and available on the Play Store.

For: People who want to build awareness around habits without pressure or shame

Next.js 14React 18TypeScript+7

Engineering & Systems

Production-minded backend systems and architecture experiments focused on performance, observability, and scalability.

Backend / Systems

E-commerce Backend Engineering Lab

Backend Engineering Lab — Production-Minded E-commerce System

A production-minded NestJS e-commerce backend built as an engineering lab to experiment with real backend architecture, test performance characteristics, and study how production systems behave under load. Focuses on caching strategies, observability, data structures, and scalability tradeoffs.

Focus Areas:

→Experiment with stateless API design patterns
→Test and compare caching strategies (in-memory LRU vs Redis)
→Study system behavior under load with k6

NestJSTypeScriptPostgreSQLPrisma+4

Explore Engineering Lab

About

I build and ship production-ready software products, ranging from SaaS platforms and AI-powered tools to mobile applications and internal dashboards. My work focuses on clean system design, performance, scalability, and thoughtful tradeoffs, with hands-on ownership across frontend, backend, databases, and integrations.

Skills

Frontend

React
Next.js
TypeScript
Tailwind CSS
React Native

Backend

Node.js
Python
PostgreSQL
MongoDB
Firebase

Infrastructure

AWS
Docker
CI/CD
Stripe
Vercel

Tools

Git
Figma
Prisma
Vector DBs
Redis