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Rohit
Dhingra

6+ years building scalable, user-centric products, from cross-platform mobile apps to AI-powered web platforms. I close the gap between great design and solid engineering.

View Projectsdhingrar77@outlook.com
6+
Years Experience
18+
Live Products
50K+
App Downloads
13
Export Markets Served

Capabilities

A full stack,
cover to cover.

From pixel-perfect interfaces to resilient backends and AI integrations. I own the whole column.

⚛️

Front-End

Interfaces users love

ReactNext.jsReduxTypeScriptJavaScriptHTMLCSS
📱

Mobile

Native feel, cross-platform reach

React NativeExpoRedux PersistRedux Thunk
🔧

Back-End

Solid APIs

Node.jsFastAPINestJSExpress.jsPython
🗄️

Databases

Data that scales

MongoDBFirebaseSupabasePostgreSQLSQL
🤖

AI & Automation

LLMs & RAG pipelines

LangChainRAGOpenAI APIPrompt Engineering
🚀

DevOps

Ship it reliably

DockerAWSCloudflarePM2Git
📡

Real-Time

Live & low-latency

WebSocketWebRTCffmpegA/V Processing
🧩

System Design

Architecting for scale

MicroservicesCachingLoad BalancingEvent-DrivenAPI GatewaysHorizontal Scaling
🦾

AI Agents

Autonomous AI workflows

Agentic AITool UseMulti-AgentOrchestrationTask AutomationLangGraph

System Design

Architecture that
holds under load.

From client to data store. How I layer services, caching, and async work so systems stay fast and predictable under real production traffic.

L01

Client Layer

Web · Mobile · Admin

Next.jsReact NativeRedux
L02

API Gateway

Routing · Auth · Rate Limits

RESTGraphQLRate Limiting
L03

Service Layer

Business Logic · AI Workers

MicroservicesRAG WorkersWebhooks
L04

Cache & Queue

Speed · Async Jobs

RedisMessage Queue
L05

Data Layer

Persistence · Vectors

PostgreSQLMongoDBVector Store

Hover the stack to explore layers · Move cursor to rotate

Career

Where I've built.

Mar 2020 Present

Freelance Full Stack Developer

Upwork

  • Managing large, complex projects with smooth implementation and end-to-end testing.
  • Collaborating with cross-functional teams for efficient delivery and milestone management.
  • Building reusable component libraries and scalable architecture patterns.
  • Developing AI-driven web applications including RAG-based systems and LLM integrations using Python (FastAPI) and LangChain.
Nov 2018 Mar 2020

React Native Developer

KeyMouseIT Pvt Ltd, Mohali

  • Participated in daily SCRUM meetings to maintain project velocity and track blockers.
  • Integrated RESTful APIs supporting JSON payloads across multiple mobile features.
  • Led UI/Front-End development, designing, testing, and shipping mobile application screens.

AI & Intelligence

I build with
language models.

Beyond traditional development, I design and deploy AI-powered systems, from retrieval-augmented generation pipelines to custom LLM integrations that handle real production loads across multiple live platforms.

LangChain
RAG Architecture
OpenAI API
Prompt Engineering
FastAPI
Vector Search
// Asksasi — RAG pipeline
const chain = new RetrievalQAChain({
  llm: new ChatOpenAI({
    temperature: 0,
    model: "gpt-4o"
  }),
  retriever: vectorStore
    .asRetriever(5),
});

// Returns grounded, cited answers
const { text } = await chain.call({
  query: userQuestion
});

Beyond the Code

Achievements &
Professional Interests.

Security research, local AI tooling, and the human side of engineering. What drives me outside of shipping products.

🛡️

Cybersecurity Labs

Active practitioner in ethical security environments (TryHackMe), focusing on advanced subdomain discovery, Server-Side Request Forgery (SSRF) mitigation, and Local File Inclusion (LFI) prevention.

TryHackMeSSRF MitigationLFI PreventionSubdomain Discovery
🧠

Local LLM Implementations

Passionate about open-source developer workflows, orchestrating local model instances using Ollama and Open Interpreter on custom environments.

OllamaOpen InterpreterLocal ModelsOpen-Source AI
🤝

Leadership & Ownership

Deeply committed to mentoring junior developers, advocating for strict UI/UX guidelines, and fostering high-ownership team collaborations.

MentoringUI/UX StandardsTeam LeadershipHigh Ownership

Selected Work

18 live products.
Real users, real scale.

Web platforms, mobile apps, AI tools shipped across industries from real estate to food sustainability.

01

AI / RAG Platform

Australia's first food sustainability AI search tool. Surfaces accreditations for 5 food categories across 13 global export markets using RAG + LangChain.

Next.jsLangChainRAG

02

AI Talent Platform

The #1 AI-powered training and hiring platform, connecting top talent with opportunities through intelligent matching and automated workflows.

ReactNode.jsLLM

03

AI Prompt Engineering

Web platform for generating production-grade LLM prompts via OpenAI APIs, improving accuracy, clarity, and reusability across AI workflows.

React.jsNode.jsOpenAI API

04

Full Stack · DevOps

WeTransfer alternative. Send files up to 2 GB via P2P or cloud with no account, no ads, no AI training on your data. FastAPI backend, Docker-deployed.

React.jsFastAPIPythonSupabaseDocker

05

Property SaaS

CRM platform for property dealers to manage businesses, leads, and listings from one dashboard, replacing fragmented diary workflows entirely.

React NativeNext.jsNode.jsMongoDB

06

Web Platform

Modern web platform built with React. Clean architecture, performance-optimised, and designed for seamless user-facing experiences at scale.

ReactNode.js

07

SaaS · Scheduling

All-in-one profile hub combining link-in-bio, real-time booking, and digital business cards with QR/vCard downloads. Turns profile visits into booked meetings.

ReactNode.jsScheduling API

08

Mobile CRM · SaaS

India's #1 WhatsApp-first sales CRM with 50,000+ downloads and a 4.6★ rating. Captures leads from WhatsApp, IndiaMart & Facebook with automated follow-up flows.

ReactReact NativeFront-End

09

Mobile App · iOS

Influencer marketing platform on the App Store. Connects brands with creators for campaign-driven collaborations and real-time performance tracking.

React NativeReduxiOS

10

Mobile App

Property photography and inspection app. Empowers real estate professionals to capture, annotate and share property images from the field.

React NativeAndroidios

11

Mobile App · iOS

Fast, user-friendly food ordering app connecting diners with local restaurants. Built for convenience with smooth ordering UX and real-time status updates.

React NativeReduxRedux Thunk

12

Mobile App · Android

Freight and logistics app on the Google Play Store. Streamlines cargo booking, shipment tracking, and fleet coordination for logistics operators.

React NativeReduxAndroid

13

Mobile App · iOS

Study buddy app on the App Store. Helps students collaborate, share notes, and hold each other accountable through a social learning experience.

React NativeFirebaseiOS

14

Mobile App · Android

The mobile companion to 3Sigma CRM, with 50,000+ downloads on the Play Store. Gives sales reps full CRM power from their pocket with offline support.

React NativeNode.jsAndroid

15

Coursebox

Mobile App · EdTech

Rapid course creation tool that generates a course structure in seconds. Publish privately or publicly, sell the course, or export to any LMS with one tap.

React NativeFirebaseRedux

16

Mobile App

Android companion to Deek Duke Go, bringing the same fast, user-friendly food ordering experience connecting diners with local restaurants, now live on the Google Play Store.

React NativeAndroidiosRedux-Saga

17

Mobile App

Front-end development for mPower, a React Native Android app delivering a polished, responsive mobile experience with smooth navigation and performant UI screens.

React NativeAndroidiosFront-End

18

Mobile App

Front-end development for Pocket Carer, a React Native caregiving app helping carers manage client schedules, care plans, and daily task workflows on Android.

React NativeAndroidiosFront-End

Contact

Let's build
something.

Have a product idea, a complex problem, or an AI project you'd like to explore? I'm available for freelance engagements and selective collaborations.

dhingrar77@outlook.com
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