Khai Nguyen
Houston,TX
Summary
More than 10 years of experience in software development with emphasis in following the SOLID principles, architecture and design patterns. 8+ years of native iOS experience using Swift and Objective-C. Reliable and friendly developer with strong problem-solving skills and teamwork collaborations.
Experienced with designing and developing iOS applications using Swift and Objective-C. Utilizes strong problem-solving skills to create efficient and user-friendly solutions. Knowledge of team collaboration and agile methodologies ensures project success and adaptability.
Overview
17
17
years of professional experience
Work History
Senior IOS Developer
IMR Soft (client: Wells Fargo)
01.2021 - 01.2025
- Implemented features of the Wells Fargo Virtual Assistant, a chatbot that leverages Google Dialogflow AI to respond to customers’ queries like ‘account balance’, ‘spending in utilities’, ‘chat in Spanish’, etc.
- Actively involved in requirement analysis, design, implementation, and deployment
- Followed Agile/SCRUM methodology and used various CI tools such as Jenkins and JIRA
- Debugged application issues using tools like Safari Developer feature, Postman, Splunk, …
- Implemented VoiceOver assistive technologies to ensure the application is ADA compliance.
iOS Lead
GalaxE (client: Fiserv)
03.2020 - 12.2020
- Led a team of 6 developers to cooperate with the QA team, PM team to deliver projects.
- Implemented POC for mobile deposit using Tesseract OCR and OpenCV
- Implemented Image caching and retrieving from the cache to improve the performance of the application.
- Refactored Objective-C code to Swift, enhancing app maintainability and a reduction in technical debt.
Senior iOS Engineer
GCS (client: Garmin)
05.2017 - 01.2020
- Refactored feature branch to support migration of application from monolithic to modularization architecture, resulting in improved build time, code maintainability, and clear separation of concern.
- Created an analytics library to help analyze crashes in production versions of the application.
- Implemented device connection to track GPS location data using CoreLocation and CoreBluetooth.
- Used multithreading for concurrent network operations and to access multiple RESTful APIs
IOS Developer
Vertigo Media Inc
12.2015 - 04.2017
- Implemented mobile payment screens providing various payment types (Stripe, ApplePay PassKit) for users.
- Reduced the manual labor and time needed to build products by building docker containers for better integration with CI/CD.
- Migrated system to AWS. Deployed/maintained Linux VMs on private cloud infrastructure such as Redis server.
Software/IT Integration Engineer
Cimarron (client: JSC)
03.2008 - 11.2015
- Wrote scripts to minimize human errors and project costs; halved labor time for reviewing configured activities, generating reports, automating regression tests, etc.
- Conducted E2E and functional tests before deployment to the Operations environment.
- Coordinated with various teams (other sites and international partners) for maintenance tasks (e.g. baseline changes, security patches) on virtual and physical resources.
- Identified and assigned equipment from VMWare resource pool based on requirements defined by the daily simulation/test activities; designed and deployed clones and templates as needed.
Education
Bachelor of Science - Computer Science
University of Houston
Skills
- Programming: Swift, Objective-C, Python, Clean Architecture, Dependency Injection, IOS
- Web Services: RESTful API, JSON, SOAP, XML, WebSockets, GraphQL
- Frameworks: CocoaPods, AVFoundation, MapKit, Core Data, Swift Data, Core Location, Reachability, Grand Central Dispatch, UIKit, SwiftUI, Combine, XCTest, …
- Tools: Xcode, Splunk, Jira, Jenkins, Postman, Docker, Firebase, Xcode, Debugging, BDD, BrowserStack, TestFlight, SonarQube, SourceTree, GitHub, …
- Unit testing experience
- Swift
- UI and UX design skills
- Apple human interface guidelines
- API integration
- Core data proficiency
- Multithreading
- Accessibility implementation
- Networking protocols
- CoreML integration
- In-app purchases setup
- RESTful services
Timeline
Senior IOS Developer
IMR Soft (client: Wells Fargo)
01.2021 - 01.2025
iOS Lead
GalaxE (client: Fiserv)
03.2020 - 12.2020
Senior iOS Engineer
GCS (client: Garmin)
05.2017 - 01.2020
IOS Developer
Vertigo Media Inc
12.2015 - 04.2017
Software/IT Integration Engineer
Cimarron (client: JSC)
03.2008 - 11.2015
Bachelor of Science - Computer Science
University of Houston
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