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One senior engineer. Fully accountable.

For 10+ years I've been the engineer startups call first, and the one who gets paged when it breaks.

Book a free 15-min call →Launch audit · $500 →
  • You talk to the person building your app
  • Overlap with US business hours
Proshanto Gupta
Proshanto GuptaFounder, ProSofts · Bengaluru
10+ yearsfirst engineer or CTO
138K+ installsWeJammin, built solo
138K+Installs on an app I built and ran solo (WeJammin)
21 daysIdea to first paying user (FanFliQ)
2 daysBetween releases, down from 2 weeks (GoalTeller)
5×Growth, zero downtime (Eqaro)

Apps and platforms I've built, for founders and for my own companies

My story

A decade on the backends that keep apps standing.

Most studios are frontend shops. I've spent ten years on what's underneath.

  1. Early startups

    Building end to end, often as the only engineer

    WeJammin, a music video app I built, launched and ran end to end on my own, to 138K+ installs on Google Play, and FanFliQ, which went from idea to its first paying user in 21 days. I was also founder & CTO of WeDigIT, a tech consultancy.

    • 138K+ installs, solo
    • 21 days to first paying user
    • Founder & CTO, WeDigIT
  2. Fintech

    The backends that can't go down

    I was the first engineer at GoalTeller, where I cut the release cycle from 2 weeks to 2 days, and I ran Eqaro's backend through 5× growth with zero downtime.

    • Releases every 2 days
    • 5× growth, zero downtime
  3. Now · ProSofts

    One senior engineer and an AI pipeline

    My AI pipeline does the heavy lifting, and I make every call that matters: architecture, data, security, and reviewing every change. You'll never be handed to an account manager.

    • Every change reviewed
    • Backend included
How I use AI

The pipeline does the volume. I make the calls.

My AI pipeline does
  • Project setup
  • Screens from the design
  • Test writing
  • Store screenshots
  • Routine fixes
I do
  • Architecture
  • Data access rules
  • Security
  • Reviewing every change
  • Store strategy
  • Talking to you

How the pipeline works, stage by stage

Working with me

How I work

  • You talk to the person building your app
  • Daily builds, weekly call
  • Overlap with US business hours
  • Invoiced in USD
  • NDA on request
The line I hold

What I won't do

  • Promise approval I can't control
  • Ship code I haven't reviewed
  • Keep your code or accounts in my name
  • Take a project I can't deliver in the time I quote

I also design governed AI agents for business workflows. AI agents →

Next step

Your users are waiting.

Find out in 48 hours exactly what it takes to get your app approved, live and earning.

Get my launch audit — $500 →or book a free 15-min call

Audit fee credited to your build · NDA on request

Launch audit$500
  • A plain-English verdict: keep, fix or rebuild the risky parts
  • Every issue ranked: what could lose you money or users first
  • A backend and review check: data rules, exposed keys, payment webhooks, and Apple's and Google's top rejection reasons
  • A fixed price to get you live
Buy nowGet it free →

Credited to your buildFree · no call needed

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