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Hi, I'm Gurjit Singh 👋

Application Security Engineer | Mobile AppSec | SOC Analyst | CompTIA Security+

Developer‑turned‑security‑engineer with 10+ years building the iOS, Android, and web applications I now protect. I specialise in mobile application security, application security, and SOC operations, combining a developer’s understanding of how systems are built with a security engineer’s focus on how they fail.

🚀 Open to Application Security Engineer, Mobile Application Security Engineer, SOC Analyst, and DevSecOps roles in the EU and UK.

Licenses & certifications

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Latest Articles

I regularly publish technical articles on security, mobile application security, threat analysis, and secure engineering practices.

MobSF Audit of an iOS app powered by the Flickr API

Static analysis of an iOS app using MobSF, identifying credential misuse, security misconfigurations, and privacy issues....

2026-05-29 . 4 min read     MobSF SAST

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Understanding Certificates in Cybersecurity

Transitioning from software development into cybersecurity is one of the most natural career moves in tech today....

2026-05-26 . 4 min read     Security Certificates

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Swift 6.1: New Features & Enhancements

Swift 6.1, officially released in March 2025, continues the evolution of Apple's powerful and expressive programming language....

2025-08-12 . 3 min read     Swift 6.1

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String Concatenation in Swift: A Comprehensive Guide

In any programming language, working with strings is essential, and Swift is no different.Whether you are building iOS apps......

2024-10-17 . 3 min read     String Concatenation

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Integrating SwiftUI with UIKit Using UIHostingController

With the introduction of SwiftUI, Apple has provided developers with a modern way to build user interfaces across all Apple platforms....

2024-07-09 . 3 min read     UIHostingController

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Deep Dive into Autorelease Pools in Swift

In the realm of software development, memory management plays a crucial role in ensuring the efficient allocation and deallocation of memory...

2024-01-28 . 4 min read     Swift Autorelease

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Recent Work

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6RPM AI

AI Dispatch for Small Fleet Operations

Designed secure mobile workflows for authentication, API calls, and sensitive data.

  • Implemented SwiftUI‑based UI, integrating REST APIs for loads, routes, and booking.
  • Built navigation and state management using MVVM and async/await for smooth updates.
  • Added push notifications and in‑app messaging to keep drivers and dispachers informed.

iOS Swift Xcode SwiftUI

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Morango Languages

Offline Language Learning

Applied secure local storage patterns for offline content and user progress data.

  • Designed the UX in Figma and implemented UI in UIKit with custom collection/table views.
  • Used Core Data for offline storage of lessons, words, and user progress.
  • Integrated StoreKit for in‑app purchases and subscription‑based content.

iOS Swift Xcode UIKit

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Habitoo

Habit Tracking App

Considered privacy and data handling practices when storing user habit data locally.

  • Built the UI in SwiftUI with dynamic lists, custom components, and progress visualizations.
  • Implemented local notifications and scheduling to remind users about habits.
  • Persisted data is saved and maintained using Core Data and UserDefaults.

iOS Swift Xcode SwiftUI

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Explore My Book

My deep SwiftUI experience helps me understand real iOS codebases when performing mobile AppSec reviews.

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Mastering SwiftUI

$10.00

"Mastering SwiftUI" is a comprehensive guide that equips both seasoned and aspiring iOS developers with the knowledge and skills needed to excel in SwiftUI-based app development. This book takes a structured approach, starting with foundational concepts and progressing to advanced techniques, ensuring a holistic understanding of Apple's declarative UI framework.

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Career Timeline