Khachatur HakobyanSenior iOS Engineer
Resume

Professional project · iOS frameworks & SDKs

Optiqo INSTA

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

Optiqo INSTA is a facility inspection and quality-management platform supporting standardized cleaning assessments, digital checklists, NFC-enabled verification, work orders, and operational reporting. The broader platform supports inspection frameworks such as SS-INSTA 800 and DS 2451-10.

  • Swift
  • Objective-C
  • UIKit
  • Core NFC

My role and work

As a Senior iOS Engineer at KSF Technologies AG, I developed and maintained native iOS functionality within an existing Objective-C application, introducing Swift-based features while preserving interoperability with legacy components.

Implemented Core NFC integration using NFCNDEFReaderSession and NFCNDEFReaderSessionDelegate, working with specialized NFC tags and integrating tag-reading workflows into the inspection system.

Contributed to UIKit development, Core Location integration, backend API communication, work-order synchronization, and application debugging, improving compatibility and maintainability.

Worked with a technology stack including ZXingObjC, Firebase Cloud Messaging, Firebase Crashlytics, and Microsoft App Center.

Skills & Technologies 30

  • Swift
  • Objective-C
  • UIKit
  • Core NFC
  • NFC Integration
  • NFCNDEFReaderSession
  • Swift–Objective-C Interoperability
  • Legacy Code Modernization
  • iOS Application Development
  • Hardware–Software Integration
  • NFC Tag Processing
  • Core Location
  • API Integration
  • Debugging
  • Software Maintenance
  • NDEF
  • NFC Session Management
  • NFC Error Handling
  • Callback-Based Communication
  • Objective-C API Integration
  • Work Order Management
  • Data Synchronization
  • Asynchronous Programming
  • Location-Based Services
  • ZXingObjC
  • QR Code Scanning
  • Firebase Cloud Messaging
  • Firebase Crashlytics
  • Microsoft App Center
  • Root Cause Analysis

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

Chronology

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