About this blog

About trycatchthrow.io

Production engineering lessons from 15+ years building iOS apps for banks and payment networks. Practical guides on Swift, mobile architecture, and the systems behind modern mobile apps — with full-stack explained for native engineers.

The author

Hi, I'm Vengat 👋

I'm a senior iOS engineer in Melbourne with 15+ years building production mobile apps — most of them in banking and payments.

Expertise

Swift, SwiftUI & UIKit
Mobile Architecture at Scale
Concurrency & Reliability
Auth, Sessions & CI/CD

What you'll find here

Production Swift & iOS

Concurrency, architecture, and the failure modes behind real features.

Banking-grade lessons

Hard-won takeaways from shipping to millions, anonymised.

Full-stack for native devs

React, Next.js and backend contracts explained from an iOS mindset.

Writing principles

Problem before pattern
Every article starts from a real production problem, not a feature tour.
Show the trade-offs
Runnable code, alternatives, and a clear decision — not just the happy path.
First-hand, anonymised
Drawn from real delivery; employer details stay confidential.
Context over cargo-cult
I focus on why an approach works, not just how to type it.

Current focus

Swift concurrency in production
Actors, task cancellation, and Sendable where reliability matters.
Scalable iOS architecture
Modules, boundaries, and dependencies in large codebases.
Full-stack from a native lens
Learning React & Next.js and mapping them to SwiftUI mental models.