Khachatur Hakobyan
Senior / Staff iOS Engineer
khakobyan.com · khachatur.hakobyan2023 [at] gmail.com linkedin.com/in/khachatur-hakobyan
Professional Summary
- Senior / Staff iOS Engineer with 12+ years of professional iOS engineering experience since January 2014; expert in advanced architecture and system design; Bachelor's degree in Computer Science & Applied Mathematics.
- Delivered 20+ iOS applications and projects in Swift, Objective-C and C++ across fintech, encrypted messaging, event ticketing, commerce and education, with a focus on performance, scalability and maintainable architecture.
- iOS Team Lead at four companies: owned architecture decisions, mentored junior engineers, and set code review, pull request and CI/CD standards while collaborating across engineering, product and QA.
- At Crypmoji, delivered a working encrypted-messaging MVP in 4 days that contributed to a reported $500K seed-funding outcome, and resolved a year-long Swift–C++ memory defect, avoiding an estimated 1–2-year rewrite.
Work Experience
KSF Technologies AG | Senior iOS EngineerNov 2021 – Present
- Re-architected authentication and login with OOP, POP, SOLID and SOA into a modular, testable system that reduced authentication-related defects by 40% and doubled feature delivery speed (2×).
- Built a reusable Core SDK for Keychain, Core Data, application settings and dialog services, reducing code duplication by 60% and shortening development cycles by weeks.
- Contributed to Sony Music Artist Portal, Sony Music Studio, Sony Music GTA and Optiqo INSTA: interactive financial charts, shared components and Core NFC inspection.
Crypmoji | iOS Team Lead (Senior iOS Engineer)Feb 2021 – Nov 2021
- Aligned the team on 3 delivery strategies and delivered a live encrypted messaging demo in 4 days, contributing to a reported $500K seed-funding outcome.
- Resolved a year-long Swift–C++ memory-management defect by correcting unsafe ownership and pointer handling, saving an estimated 1–2 years of engineering effort.
WiredMates | iOS Team Lead (Senior iOS Engineer)Mar 2020 – Feb 2021
- Architected a reusable storyboard-based UIKit framework (IBDesignable, IBInspectable), reducing adaptive screen development time by 70% (10 to 3 hours).
- Engineered Stripe and Apple Pay integrations, reducing checkout time by 70%; mentored junior engineers and introduced pull request standards.
Xamlab | iOS Team Lead (Senior iOS Engineer)Jan 2019 – Mar 2020
- Led the modernization from Xamarin/C# to native Swift with modular MVVM, POP and automated unit testing, achieving 98% test coverage.
- Redesigned ticket validation into a streamlined QR scanning workflow, accelerating ticket validation by 5–6× and reducing errors by over 90%.
Education
Yerevan State University | Bachelor's, Computer Science & Applied MathematicsSep 2010 – Sep 2017
Harvard University | CS50 — Introduction to Computer Science (course)Sep 2024 – Aug 2025
Meta | iOS Developer Professional CertificateSep 2023 – Sep 2024
Technical Skills
Programming Languages: Swift, Objective-C, C++, Objective-C++
iOS Frameworks & SDKs: UIKit, Storyboards, iOS Application Development, Custom UI Components
Architecture & System Design: iOS Software Architecture, Modular Architecture, SOLID Principles, Protocol-Oriented Programming
Networking & Persistence: Core Data, API Integration, Alamofire, Data Persistence
Testing & Delivery: Testable Architecture, Unit Testing, Azure DevOps, CI/CD
Leadership: Technical Leadership, Engineering Mentorship, Code Reviews, Cross-Functional Collaboration