Khachatur HakobyanSenior iOS Engineer
Resume

Professional project · Software architecture

Sony Music Artist Portal

KSF Technologies AGSenior iOS EngineerNov 2021 – PresentZurich, Switzerland · Remote

Sony Music Artist Portal is a unified financial management and analytics platform providing music artists, managers, and royalty participants with access to real-time earnings, financial reporting, royalty payments, cash-out functionality, and music consumption trends across mobile and desktop applications.

  • Swift
  • UIKit
  • iOS Software Architecture
  • Authentication Architecture

My role and work

As a Senior iOS Engineer at KSF Technologies AG, I contributed to the modernization and consolidation of Sony Music's iOS application ecosystem, bringing selected functionality previously distributed across Studio, GTA, and related applications into a more unified Artist Portal experience.

Re-architected authentication and login functionality using Swift, Object-Oriented Programming, Protocol-Oriented Programming, SOLID principles, and dependency injection, replacing tightly coupled implementations with modular, testable components. Across these KSF initiatives, authentication-related defects decreased by approximately 40%, while feature delivery accelerated by 2×.

Architected a reusable Core SDK integrating Keychain, Core Data, application settings, and dialog services, standardizing infrastructure across modules and application targets. Reduced duplicated code by approximately 60% and improved maintainability and engineering efficiency.

Developed custom interactive financial charts and reusable UIKit components, overcoming third-party charting limitations and supporting the visualization of financial metrics and revenue trends.

Applied modular architecture, interface-based design, secure storage abstractions, and reusable component development to improve application reliability, extensibility, and long-term maintainability.

Achievements and metrics

  • Across these KSF initiatives, authentication-related defects decreased by approximately 40%, while feature delivery accelerated by 2×.
  • Reduced duplicated code by approximately 60% and improved maintainability and engineering efficiency.

Quoted from the description above; figures are self-reported.

Skills & Technologies 30

  • Swift
  • UIKit
  • iOS Software Architecture
  • Authentication Architecture
  • SOLID Principles
  • Protocol-Oriented Programming
  • Object-Oriented Programming
  • Dependency Injection
  • Modular Architecture
  • Reusable SDK Development
  • Keychain Services
  • Core Data
  • Secure Storage Architecture
  • Custom Data Visualization
  • Application Modernization
  • Code Refactoring
  • Service Abstraction
  • Interface-Based Design
  • Secure Authentication
  • Storyboards
  • Custom UI Components
  • Interactive Charts
  • Data Persistence
  • Testable Architecture
  • Reusable Components
  • Software Reliability
  • Application Consolidation
  • Cross-Module Integration
  • Engineering Mentorship
  • Technical Leadership

The first 15 are the primary skills for this project; the rest are additional.

Chronology

Project 1 of 4 at KSF Technologies AG (Nov 2021 – Present), listed newest first. Project-level dates are not given.