DSDinesh Subbharoyen

Hi, I’m Dinesh 👋

I build the systems behind the screen.

Backend engineer in Chennai. I own 70+ APIs for Bell Canada at Orion Innovation, built the AI tool that migrates their legacy integrations, and ship my own products on the side.

70+production APIs owned
~85%AI token cost cut in MIRA
5products built end to end

Follow a requestTap a step, or send one through

This is the stack I work in every day

Each step is something I design, build or run at Bell Canada.

Adopted across Bell Canada, live in production

MIRAMigration Intelligence & Refactoring Agent

An AI-augmented pipeline that rewrites legacy IBM IIB/ACE integrations as clean Spring Boot services. It started as my script and became the organisation’s migration path.

~85%fewer AI tokens through context caching
10 stepsstreamed live from legacy flow to running service
Legacy IIB flowGetAccount.esql

        
    Spring Boot serviceNot built yet
    
            

    A simplified replay of how MIRA works: it reads the flow as a graph, scaffolds the project first, writes each file, then compiles and fixes until the build passes.

    Reads legacy code as a graphA custom IIB parser turns message flows into structured JSON the AI can reason about.

    Lives where engineers workA web app (FastAPI, React, WebSockets) plus a VS Code extension that bridges to Copilot.

    Ships real servicesThe first migrated service is running on OpenShift in Bell’s production environment.

    Products I’m building

    Each one is designed, built and run by me. Try the demos: they use sample data and run right here in the page.

    In progress

    MissedCallMate

    Plumbers, electricians and HVAC crews miss calls while they’re on the job, and every missed call is a customer calling the next company.

    MissedCallMate texts the caller back within seconds, keeps the conversation going and books the job. Owners see every lead and appointment in a simple app, with one-tap replies like “On my way”.

    • n8n, self-hosted
    • SMS automation
    • Owner app
    • Ubuntu VPS
    Sample conversation
    Lone Star PlumbingBusiness line

    Press “Simulate a missed call” to watch a lost call turn into a booked job.

    SaaS product

    The Followup

    A Jira-style board built for chartered accountancy firms, with the one thing Jira doesn’t do: chase clients for you.

    Firms track work per client and send follow-ups over WhatsApp and email straight from the card. Every business gets its own isolated database, role-based access and built-in billing.

    • WhatsApp + email campaigns
    • Database per firm
    • Role-based access
    • Razorpay
    Move cards to see follow-ups go out

    To do

    Waiting on client

    Done

    Click “Request documents” on a card.
    SaaS product

    resto.pet

    Billing, kitchen orders and customer management for restaurants, built to take on PetPooja with simpler, flat pricing.

    Orders sync in real time across devices, kitchen tickets print straight to thermal printers, and each restaurant collects payments into its own Razorpay account. It installs like an app on any phone or tablet.

    • TypeScript
    • NestJS
    • Next.js
    • PostgreSQL + Prisma
    • Redis + WebSockets
    • ESC/POS printing
    • PWA
    Tap dishes to build an order for Table 4
    Table 4 · Dine in

    No items yet

    Subtotal₹0
    GST 5%₹0
    Total₹0
    Security tool

    DomainSentry

    Maps everything a company exposes to the internet and flags the weak spots, so they get fixed before an attacker finds them.

    It grew out of my bug bounty work, where I find vulnerabilities in companies’ public services and report them directly.

    • Attack surface discovery
    • Vulnerability checks
    • Bug bounty
    Sample findings only. Nothing is actually scanned.
    Ready to scan.

      Where I’ve worked

      Four years of backend engineering, starting with an internship in 2022.

      1. Now

        Backend Engineer, Orion Innovation

        Client: Bell Canada, ESIDE platform. I own 70+ APIs across Hierarchy Management and Personalization, from design through production on OpenShift. Built MIRA here.

      2. Before

        Lead Backend Engineer, Ducen IT

        Led backend development after joining as an intern in 2022.

      What I work with

      Pick a skill to see where I’ve used it.

        Have something worth building?

        I’m open to backend and full-stack roles, and always up for talking about systems, AI tooling or a product idea.

        Email me Call +91 63839 96491