Summary
Overview
Work History
Education
Skills
Timeline
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Priya Yohannan

Priya Yohannan

Columbus,IN

Summary

Senior iOS Engineer with 10+ years of experience building exceptional native applications. Expert in Swift, SwiftUI, and UIKit, with a proven track record designing scalable architectures and optimizing performance. Known for leading innovative codebase modernization, mentoring developers, and delivering reliable apps with 99.7%+ crash-free rates. Combines technical excellence with strong cross-functional collaboration to create user-centered mobile experiences that drive measurable business results.

Overview

13
13
years of professional experience

Work History

Senior Engineer

United Airlines
05.2021 - Current
  • FAA-Mandated Safety App Leadership: Took over a critical FAA-compliant iOS app with a crash rate exceeding 8%. Through rigorous performance audits, architectural refactoring, and instrumentation improvements, reduced crash rate to
  • Performance & Stability Revamp: Boosted app responsiveness and load times for the FAA app by optimizing network layer, removing blocking operations on main thread, and introducing lazy rendering strategies — resulting in a significant improvement in startup time and user satisfaction.
  • Architecture Leadership: Influenced technical strategy and architectural direction through comprehensive architecture proposals, successfully leading a UIKit to SwiftUI migration for enterprise-scale codebases while maintaining app stability and performance across millions of users.
  • Technical Innovation: Pioneered the integration of iOS 16 Live Activities for frontline airline employees — becoming the first iOS app in the aviation industry to offer real-time updates on the lock screen. The feature was showcased at Apple's Aviation conference in Austin, Texas.
  • Modern UI Framework Integration: Drove the migration from legacy UIKit to SwiftUI, accelerating UI development and improving maintainability across key modules, including flight operations and crew tools. Led efforts to deliver a next-generation, interactive seat map.
  • Leadership & Mentorship: Created a mentorship program for new engineers and interns, accelerating onboarding and fostering continuous growth within the iOS team.
  • Interview Panel Member: Serve as a core member of the iOS hiring panel, assessing candidate skills in Swift, SwiftUI, and architectural design through live coding and scenario-based discussions.
  • Tooling Awareness: Familiar with CI/CD workflows using Fastlane and basic scripting with Python to support automation and release readiness.

Technology Lead

Infosys
08.2018 - 03.2021
  • Federal Insurance Platform Ownership: Led enhancements for a federal insurance iOS app used by government employees to access benefits, view coverage, and manage claims. Improvements in performance and reliability led to a notable increase in app store ratings and user satisfaction.
  • Digital Wallet Integration: Spearheaded the development of Apple Wallet support for storing and presenting digital insurance cards securely, improving user convenience and regulatory compliance.
  • Data-Driven UX Enhancements: Used in-app analytics to identify employee pain points, then refactored critical screens (benefits overview, plan details, claim summary) to improve clarity and accessibility. This led to faster task completion and reduced app drop-offs.
  • App Stabilization & Performance Gains: Took over a legacy application with a high crash rate; implemented architectural and performance fixes, resulting in significant crash reduction and a more responsive UI.
  • Cross-Functional Collaboration: Partnered with product managers, business analysts, and compliance teams to gather requirements, ensuring all solutions met federal accessibility and security standards.
  • Reusable Component Design: Developed modular iOS components and internal packages that were adopted across multiple teams, increasing development consistency and reducing duplication.

Senior Engineer

Cummins Inc
04.2017 - 07.2018
  • Designed features to fetch and display diagnostic fault codes and vehicle service history in field-service iOS apps.
  • Built modular communication layers and handled API resilience for edge-case environments.
  • Owned CI setup using Jenkins and supported internal release cycles across QA and staging tracks.
  • Collaborated closely with cross-functional teams to deliver feature enhancements.

Senior Engineer

QBurst
10.2015 - 12.2016
  • Contributed to the Uniqlo customer app by designing and building a modular UI framework that enabled consistent, reusable components across the app, improving development speed and maintainability.
  • Led the implementation of shared interface components such as headers, buttons, and form elements to ensure design uniformity and reduce code duplication across teams.
  • Developed and tested new features for Fresh Brix, a real estate app, including property detail views, map-based listing search, and advanced filtering for better user experience.
  • Worked closely with designers and backend developers to deliver polished, production-ready features through iterative development.
  • Participated in code reviews, unit testing, and internal QA to maintain high code quality across both projects.

Senior Engineer

iGate Global Solutions (Capgemini)
01.2013 - 01.2015
  • Independent Delivery: Independently designed and developed several enterprise iOS applications for General Electric (GE) using Objective-C, Swift, and RESTful APIs. Projects ranged from internal productivity tools to data management utilities, with a strong focus on performance and usability.
  • Career Progression: Rapidly promoted from Software Engineer to Senior Software Engineer based on consistent delivery, clean architecture, and stakeholder satisfaction across multiple project tracks.
  • Global Collaboration: Operated in a globally distributed team model, collaborating with onshore leads and offshore developers to ensure smooth, aligned delivery across time zones.
  • Agile Development: Participated actively in sprint planning, story estimations, and client demos, contributing to agile workflows and refining feature roadmaps based on real-time client feedback.
  • Custom UI & Component Reuse: Built reusable UI components in UIKit, including custom tab tables, forms, and charts aligned with GE’s internal design systems — reducing future development time across teams.
  • API Integration & Optimization: Integrated with secure internal services using REST APIs, and optimized networking layers for reduced latency and improved user responsiveness.
  • Compliance & Security: Ensured all mobile apps adhered to GE’s enterprise IT policies, including secure data storage, encryption, and MDM integration for internal deployment.

Education

Bachelor of Science - Computer Science Engineering

Mahatma Gandhi University

Skills

  • IOS Development
  • Swift (Advanced, 58), Objective-C (Proficient), SwiftUI (Advanced), UIKit (Expert); Async/Await, Live Activities
  • Architecture & Patterns
  • MVC MVVM, Coordinator Pattern, Clean Architecture, Protocol-Oriented Programming, Modular App Design, Design Systems, Server-Driven UI (SDUI)
  • Data Management
  • CoreData, SwiftData, Firebase, RESTful APIs
  • Testing & Tooling
  • Unit/UI Testing, Snapshot Testing, XCTest, Code Coverage Analysis, Git/GitHub, Fastlane (Basic), Feature Flags
  • Other Skills
  • Python(Basic), JavaScript

Timeline

Senior Engineer

United Airlines
05.2021 - Current

Technology Lead

Infosys
08.2018 - 03.2021

Senior Engineer

Cummins Inc
04.2017 - 07.2018

Senior Engineer

QBurst
10.2015 - 12.2016

Senior Engineer

iGate Global Solutions (Capgemini)
01.2013 - 01.2015

Bachelor of Science - Computer Science Engineering

Mahatma Gandhi University

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Priya Yohannan