Available to hire
Hi, I’m Kelly He. I’m a full-stack mobile engineer with 9+ years of experience delivering end-to-end, customer-facing iOS apps and platforms. I’ve shipped 10+ feature-rich applications and built scalable architectures, automated CI/CD, and collaborated closely with product and design teams to deliver meaningful software.
I’ve worked across startups and large organizations, from Slalom Consulting to Ulta Beauty, across React, AWS, GraphQL, Swift/SwiftUI, and cross-platform mobile development with React Native and Flutter. I’m passionate about shipping delightful UX, mentoring teams, and continuously improving engineering processes.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Work Experience
Senior Software Engineer at Slalom Consulting
January 1, 2019 - January 1, 2020Full-stack engineer who built, launched, and automated a patient communication platform using React and CI/CD pipelines through infrastructure as code on AWS, serving 650K+ users.
Software Engineer at Athena Health
January 1, 2017 - January 1, 2019Full-stack contributor building cross-border bank-to-bank payment network using Angular + Java + Hyperledger Fabric that launched in 30 trade corridors.
Software Engineer at Visa Reinforce Software
January 1, 2019 - January 1, 2020Created an AI-powered iOS voice assistant for diesel mechanics; hackathon winner and secured a $100k MVP contract with Daimler Trucks North America (Mercedes Benz).
Senior iOS Engineer at Ulta Beauty
January 1, 2020 - PresentArchitected and delivered core e-commerce experiences for flagship iOS app serving 45M+ users and supporting $1B+ in annual revenue.
iOS Engineer at CaringBridge
January 1, 2020 - PresentLaunched a greenfield iOS app using SwiftUI + SPM integrated to a GraphQL + Apollo layer, delivered in 6 months and adopted by over 50K users.
iOS Engineer at T-Mobile
January 1, 2020 - PresentModernized a legacy UIKit iOS setup application following VIPER principles, developed hardware analytics tool to improve 5G reception based on home placement; refactored legacy UIKit views and networking layers to improve app stability and quality; expanded XCTest coverage across critical modules.
Mobile Engineer at Imagine Pediatrics
January 1, 2020 - PresentReleased a greenfield React Native app for remote patient care; built secure, real-time chat and video communication experiences using Twilio and AWS.
Flutter Engineer at T-Mobile
January 1, 2020 - PresentCreated an internal POC application bridging native Bluetooth frameworks through platform-channel APIs with Dart for cross-platform diagnostics.
Education
Bachelor of Science in Electrical and Computer Engineering at The University of Texas at Austin
January 1, 2013 - January 1, 2017Qualifications
AWS Certified Solutions Architect
January 1, 2022 - March 4, 2026Industry Experience
Software & Internet, Healthcare, Professional Services, Media & Entertainment
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Hire a Full Stack Developer
We have the best full stack developer experts on Twine. Hire a full stack developer in Austin today.