I build software. Now I secure it.


About Me


I'm Gurjit Singh — a CompTIA Security+ certified SOC Analyst and Mobile Application Security Engineer based in the EU, open to relocation across the EU and UK. For over 10 years I designed, built, and shipped production applications on iOS, Android, and the web, including systems handling payment data, logistics records, and accounts for tens of thousands of users. That experience taught me not just how to write code, but where software actually breaks in the real world — how attackers think, and what secure architecture looks like in production.

Most Application Security professionals learn to find vulnerabilities in systems they’ve never built. I spent a decade building them, and I now use that experience to secure mobile apps, APIs, and user‑facing platforms.

In 2026 I passed CompTIA Security+ and made cybersecurity my full‑time focus. I’m actively building my security portfolio through mobile application auditing with MobSF, OWASP Mobile Top 10 lab work, TryHackMe penetration testing practice, and real‑world vulnerability analysis of my own production apps.

What I bring to a security team:

  • SOC operations: SIEM alert triage, incident response, vulnerability management, and threat hunting.
  • Mobile AppSec: iOS/Android attack surface expertise, certificate pinning, Keychain/Secure Enclave, and secure local data storage.
  • Secure development: CI/CD pipeline security, DevSecOps practices, and REST API authentication and authorization hardening.
  • AI/ML security: Production on‑device LLaMA 3.2 experience and awareness of emerging AI threat surfaces.
  • Compliance awareness: GDPR, PCI‑DSS, NIST CSF, and risk‑aware engineering.

🚀 Currently open to Application Security, Mobile AppSec, SOC Analyst, and DevSecOps roles in the EU and UK.

Let's connect with me.


Experiences



iOS Developer | Portugal(Remote)

Mar 2020 - Apr 2026

End-to-end development, App Store publishing, and maintenance of multiple iOS applications.


6RPM AI
Sep 2025 - Present

  • 6RPM AI- Developed an AI-powered freight platform connecting carriers and shippers, featuring an AI dispatcher for load finding/booking and real-time Proof of Delivery capture.


Yollect
Nov 2023 - Aug 2025

  • Yollect- We collaborated on a fully operational resale trading platform project that encompasses a user-friendly checkout experience, seamless integration with Stripe for payments, and additional features.


Morango Languages
Mar 2021 - Oct 2023

  • Morango Languages App- Crafted a language learning app using Figma, Xcode, Swift, UIKit, CoreData, and StoreKit. Consistently delivered updates on the App Store, enabling seamless language acquisition from scratch.


Habitoo
Mar 2020 - Feb 2021

  • Habitoo - Habit Tracker: Designed and developed Habitoo, an iOS habit tracker using Figma, Swift, SwiftUI, and CoreData. Successfully released on the App Store, facilitating easy tracking of daily goals and behaviors.


Web Developer, XP Consulting Pty Ltd
Jan 2017 - Dec 2019

  • Bharat Times - We created a website for newspaper company that is interactive and dynamic and has cross-browser and mobile compatibility. It has features like e-paper, matrimonial, CMS and advertisements.
  • Eco Swaddles - For a clothing firm, we worked on a fully working e-commerce project that includes a CMS, a promotions and discount tools, a user-friendly checkout, a PayPal payment integration, and more.
  • Exceed career coaching - We collaborated with an online coaching company to create a dynamic website to sell their courses online. This website has a CMS, an easy-to- use checkout, a Stripe payment system, and other features.
  • Power to the plants - Developed a dynamic and collaborative website with a content management system (CMS), mobile compatibility, and cross-browser compatibility.
  • Hepburn Retreat Centre - We worked on both the front-end and back-end of the company's website when it was redesigned.
  • Continental house - Contributed to the creation of the company's new website, where I was in charge of all front-end work, including mobile usability and cross-browser compatibility.
  • XP Consulting - In this pivotal role, my responsibilities encompassed conceptualizing, designing, and implementing the content management system for company's new website.
  • DG Tutoring Services - We teamed up with an online coaching company to build a dynamic website for selling courses. It includes a CMS, an easy checkout, PayPal integration, and more.


Android Developer, Tidycell
May 2015 - Dec 2016

  • Picasta - Designed and developed a feature-rich Android selfie app using Android Studio and Java. Released on the Google Play Store, offering filters, drawing tools, text addition, and advanced editing features.
  • Blast Of Struggle - Developed a captivating casual arcade game using Unity game engine and C#. Successfully launched on the Google Play Store, showcasing skills in game development and achievement.
  • SketchHD - Unleash your creativity effortlessly on any Android device with this intuitive sketching app. Created from scratch, it offers a myriad of features for seamless sketch production and editing.
  • Epic Baby Care - Designed and developed a parent-focused app with an intuitive interface using Android Studio and Java. Managed Play Store rollout and integrated Crashlytics and Google Analytics for stability and insights.
  • Best Torch Light - The high-definition Torch Light app was developed using Android Studio and Java, achieving a successful launch on the Google Play Store.
  • Bunny Go Run - It offers Android users a free, adventure-filled game. Developed using Unity 3D and C#, it's available on the Play Store for an engaging experience.
  • Turbanator - An Android app showcasing diverse turban styles in various colors. Crafted using Android Studio and Java, it's now accessible on the Play Store.


Web Developer, Qik Ads
Aug 2014 - Apr 2015

  • AMS - Attendance Management System (AMS) is the easiest and most user-friendly method of controlling attendance for faculty and students developed for Desh Bhagat University.
  • SD Model School - Built an interactive website featuring a CMS, mobile adaptability, and cross-browser support.


Junior Android Developer, ADM Systems Pvt Ltd
Jan 2014 - Jun 2014

  • POPBAR - Developed an Android app in Java via Android Studio measuring social ratings through a friend-rated question game. Led UI, feature design, Play Store publication, and integrated Crashlytics and Google Analytics for crash monitoring and analytics.


Trainee Android Developer, Sebiz Infotech Pvt Ltd
Jan 2013 - Jun 2013

  • Anti Text Spoiler - Developed an Android app in Java via Android Studio enabling personalized do-not-disturb scheduling, blocking notifications, calls, and texts within specified timeframes.

Education



Punjab Technical University
Bachelor of Technology (B.Tech.), Computer Science
India, 2009 - 2013

Grade: A

Licenses & certifications



CompTIA Security+
CompTIA
Issued May 2026

Show credential


CompTIA CySA+
CompTIA
(in progress)


Fundamentals of digital marketing
Google
Issued Apr 2023

Credential ID - 2LA5H7BLD
Show credential


Data Structures & Algorithms in Swift
Udacity
Issued May 2021

Technical Skills


  • Splunk, Burp Suite, Wireshark, Zenmap, VirusTotal, MobSF, Nessus
  • Languages: Java, C++, Swift, Objective-C, PHP, HTML, CSS, Javascript, C#, SQL, C
  • Architecture & Design Patterns: MVVM, MVC, Singleton, Delegate, Dependency Injection
  • DevOps / CI-CD: Git, Fastlane, Firebase, Xcode, Android Studio, CI/CD
  • AI & ML: LLaMA 3.2, Ollama, AI model integration security
  • Others: REST APIs, Unit Testing, UI Testing, Debugging

Languages


  • English: Professional working proficiency
  • Portuguese: Elementary

Get In Touch



Download CV in PDF format


If you have any queries, please send me an email