QualityIsInvisible.
UntilItFails.

I build systems that don't fail.

Dineshsingh Rajpurohit

QA · Automation · AI Workflows

Explore My Work

My journey began in FinTech, where reliability isn't optional — it's critical.

🏦

Juspay

My journey began in FinTech, where reliability isn't optional — it's critical.

At Juspay, I learned how transactions move, how APIs behave, and how small errors can create big failures.

API TestingAutomationSystem Debugging

That's where I started thinking beyond testing — I started thinking about systems.

💻

Primebook

Then I moved into operating systems. No documentation. Just exploration.

OTA TestingHardware PerformanceBug Investigation

I learned how to test what isn't documented.

🚀

10Turtle

Then came web products. Clients. Deadlines. Undefined requirements.

That's where I started building.

Deep Dives

Explore My Work

Systems I've designed, built, and hardened. Each project below is a deep-dive into constraints, architecture, and execution.

Project 01

Gold Price Sync Engine

Shopify Custom App — Deterministic Pricing Automation

Problem Context

// Pricing Formula
Final Price = (Metal Weight × Live Spot Price) + Premium
Shopify API rate limitsInconsistent external price APIsLarge variant catalogsRepeated execution via cron
# System Architecture
source: External Metal Price API
cache: MongoDB (TTL indexed)
worker: Node.js Sync Worker
target: Shopify Admin GraphQL
display: Theme Extension (Storefront Proxy)
# Execution
trigger: cron | manual
strategy: diff-before-mutate
threshold: > $1 delta
External APICache (Mongo)Sync WorkerShopify GraphQLStorefront

External API → Cache → Worker → GraphQL → Storefront

Execution Model

TRIGGER
• Manual (admin dashboard)
• Cron-based (configurable interval)
WORKER
• Sequential variant updates
• Threshold check > $1
• Batch mutation strategy
sync-worker

Click to simulate a sync cycle

Runtime Safeguards

~70%
Mutation Reduction
Deterministic
Pricing Model
Safe Cron
Automation
Project 02

Sentinel QA Platform

Autonomous Visual Regression — Crawl · Capture · Diff · Decide

Pipeline Flow

Crawl
→
Capture
→
Diff
→
Analyze
→
Decision

Autonomous regression pipeline — zero human intervention

Module Switchboard

Toggle modules to highlight their scope in the pipeline flow above

Failure Domain

Critical Issues:
0
Blocking:FALSE
PASS

Artifact Preview

Inspect Result
📸

Baseline Screenshot

Reference from last approved build

Project 03

Synx Connect

Enterprise Feed Sync Engine — Redis · Workers · GraphQL

Redis Queue Depth

Q1
—
Q2
—
Q3
—
Q4
—
Q5
—
Q6
—
Q7
—
Q8
—

Worker Pipeline

📋Job Added
🔴Redis Queue
📁FTP Fetch
📊CSV Stream
🔍Row Diff
⚡GraphQL Mutation

Diff Engine

# Standard diff mode
Compare CSV row ↔ Shopify product
If field delta → queue mutation
If identical → skip

Observability

0
Total Rows
0
Updated
0
Created
0
Skipped
0
Failed

Fault Injection

resilience-test

Click "Simulate API Throttle" to test resilience handling

Project 04

WordPress OAuth Plugin

Secure Social Authentication for WordPress

OAuth Flow Sequence

1
🔑Generate State Token

CSRF-safe, stored as WP transient with 10-minute expiry

2
↗Redirect to Provider
3
🔄Exchange Auth Code
4
👤Fetch Profile
5
🔗Map User
6
🍪Set Cookies

Security Focus

Engineering Patterns
// Patterns I Consistently Apply
→Diff before mutate
→Cache before fetch
→Queue before execute
→Validate before trust
→Log before complete

What I Bring
To The Table

🧠

System-Level Thinking

Understanding how components interact, fail, and recover.

🔍

Structured QA

Methodical test design from requirements to edge cases.

⚙️

Automation Workflow Design

Building repeatable, maintainable test pipelines.

📡

API & Backend Validation

Deep endpoint testing, contract validation, error handling.

🚀

Performance Analysis

Lighthouse, Core Web Vitals, load profiling.

🤝

Client Communication

Translating technical findings into actionable business insights.

I don't just test features.

I test assumptions.

I don't just build automation.

I build repeatable systems.

I don't use AI to replace thinking.

I use it to accelerate execution.

Tools & Technologies

Playwright
TypeScript
JavaScript
Postman
Shopify APIs
Lighthouse
Unlighthouse
Git
Modern AI Models
Playwright
TypeScript
JavaScript
Postman
Shopify APIs
Lighthouse
Unlighthouse
Git
Modern AI Models

Let's Build Products That Work —
Even When No One Is Watching.

Open to QA Automation roles, performance consulting, and product reliability projects.

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Built with precision — not templates.