Roy Perryman

Full Stack Engineer

Cincinnati, Ohio, United States8 yrs 4 mos experience
Highly Stable

Key Highlights

  • Led a team to reduce app development time by 50%.
  • Expert in React Native and cloud-native architectures.
  • Passionate about enhancing digital healthcare experiences.
Stackforce AI infers this person is a Full-Stack Engineer specializing in mobile applications within the Healthcare sector.

Contact

Skills

Core Skills

React NativeSolution ArchitectureAndroid DevelopmentC#Google Cloud PlatformFull-stack DevelopmentJava

Other Skills

LeadershipSoftware Architecture.NETAgile Methodologies.NET FrameworkAzureGoogle Cloud Platform (GCP)DynatracePython (Programming Language)KotlinPCFPresentation SkillsPublic SpeakingTeamworkAPI Development

About

As a Lead Full Stack Engineer at Humana, I’m passionate about creating beautiful, high-performing mobile and web experiences powered by robust, cloud-native architectures. I’ve led a talented team of engineers in rewriting a legacy native mobile app into React Native, cutting development time by 50% while improving performance and maintainability across platforms. My focus on clean architecture, elegant design systems, and user-centric interactions has helped deliver apps that feel seamless, modern, and reliable — on both iOS and Android. With a B.S. in Computer Science from Michigan State University (2017), I’ve built deep expertise in React Native, TypeScript, Kotlin, C#, Python, Java, and cloud micro-services. Over my years at Humana, I’ve worn multiple hats — Engineer, Architect, Product Owner, and Mentor — partnering with product, design, and business teams to bring complex ideas to life. I thrive on learning, leading, and pushing boundaries in the mobile app space — always exploring the next wave of technology to make digital healthcare smarter, faster, and more human.

Experience

8 yrs 4 mos
Total Experience
8 yrs 4 mos
Average Tenure
8 yrs 4 mos
Current Experience

Humana

6 roles

Lead Full Stack Engineer

Promoted

Mar 2023Present · 3 yrs 2 mos

  • Spearheaded and directed a high-performing team of developers to successfully rewrite a native mobile app into React Native, achieving a notable 50% reduction in development time while elevating overall app performance.
  • Crafted and implemented sleek UI/UX components using React Native, delivering a seamless and sophisticated user experience that transcended seamlessly across both iOS and Android platforms.
  • Collaborated closely with product managers and key stakeholders to meticulously gather requirements, define project scope, and strategically prioritize features, ensuring alignment with the broader organizational goals.
  • Architected and developed robust, scalable backend APIs, seamlessly integrating them with the React Native frontend. This meticulous approach ensured a fluid data flow and synchronization, underpinning the app's optimal functionality.
  • Instituted and refined agile development methodologies, fostering a culture of continuous improvement that resulted in the consistent and timely delivery of project milestones.
  • Led comprehensive code reviews, providing insightful feedback, mentoring junior engineers, and championing best practices to elevate overall code quality and maintainability within the development team.
LeadershipSolution ArchitectureReact NativeSoftware Architecture.NET

Senior Software Engineer

May 2022Mar 2023 · 10 mos

  • Led a team of engineers in maintaining and enhancing a portfolio of native mobile applications, ensuring high code quality, performance, and reliability.
  • Collaborated closely with product owners, designers, and stakeholders to define project requirements, prioritize features, and align technical solutions with business objectives.
  • Developed and implemented effective development processes, leveraging agile methodologies to ensure efficient project delivery and meet tight deadlines.
  • Conducted regular code reviews, identified areas for improvement, and implemented refactoring strategies to enhance maintainability and scalability.
  • Actively researched and evaluated emerging technologies and trends in the mobile app development landscape to drive innovation and stay ahead of the competition.
.NET FrameworkAndroid DevelopmentSolution ArchitectureAzureReact Native

Senior Software Engineer

May 2021May 2022 · 1 yr

  • Continuously developing centralized Components library for sharing between all .NET Core services.
  • Increasing triage productivity by aggregating error data from GCP storage and publishing messages to MS Teams.
  • Building SLO’s and SLI’s in Dynatrace to measure availability and latency across Author’s service layer.
  • Establishing standardization around code use, patterns, best practices, as well as styling and conventions.
  • Developing new API’s following REST standards to integrate with Humana’s Core services and expose data to consuming teams within Author.
C#Google Cloud Platform (GCP)DynatracePython (Programming Language)Google Cloud Platform

Senior Software Engineer

Promoted

Nov 2018May 2021 · 2 yrs 6 mos

  • As a Senior Software Engineer/Applications Architect for Humana I oversee three consumer facing applications (MyHumana, Humana Pharmacy, and RxMentor) along with their cloud hosted micro-services.
  • Oversaw three mobile applications (MyHumana, Humana Pharmacy, RxMentor) through full life cycle iOS/Android development, App Store releases, Ad-Hoc and In-House distribution, and AppCenter management.
  • Delivered solution concepts, estimates, and integration architecture for large and small IT projects.
  • Reduced API response time by implementing Redis caching and migrating .NET Framework applications to .NET Core.
  • Designed and developed multiple proof of concepts for the business that were chosen to be implemented into production applications (androidx, material design components, dark mode, product search, pricing calculator).
  • Supported production outages, energized and enabled new developers via paired programming and peer reviews.
  • Implemented native, reusable, TFA (Two-factor Authentication) into the MyHumana mobile app introducing Kotlin and coroutines.
Full-Stack DevelopmentC#.NET FrameworkAndroid DevelopmentSolution Architecture

Software Engineer 2

Jan 2018Nov 2018 · 10 mos

  • As a Software Engineer 2 on the mobile development team at Humana I worked to develop functionality for the MyHumana Android mobile application that had around 110,000-150,000 active monthly users.
  • Tracked/resolved production bugs, maintained code quality, and collaborated with designers to build new user experiences.
  • Refactored legacy code including handling the migration from Java to Kotlin all while developing new features and eliminating bugs with test coverage.
  • Utilized Extreme Programming (XP) methodologies such as test-driven development, paired programming, code peer reviews, and week-long development cycles.
  • Guided the migration from Git hosted repo’s to TFS including the setup of CI/CD pipelines for 15 micro-services.
  • Experience with data security for PHI and credit card transactions.
  • Develop new features that utilize both SOAP/REST API's.
  • Work with UI/UX designers to improve existing apps and overcome hurdles to meet design goals before reaching implementation.
  • The mobile team works in a lean agile software engineering environment with the following of Extreme Programming (XP) practices: test driven development, paired programming, co-location and week-long development cycles.
Full-Stack DevelopmentC#Kotlin.NET FrameworkAndroid Development

Software Engineer

May 2016Dec 2017 · 1 yr 7 mos

  • Over two summer internships and extended internships through three college semesters, I worked on two projects.
  • The first project was the development POC application named FoodDiary.
  • Paired programming in a full-stack environment, creating an Android application
  • Created a cloud database on PCF to allow user information backup/retrieval on application login.
  • Implemented Facebook’s Android SDK to allow login with Facebook improving app usability.
  • The second project involved moving to a consumer production application MyHumana and programming on a lean agile development team with co-location and weekly sprints.
  • Migrated micro-services to both QA and Production PCF (Pivotal Cloud Foundry).
  • Implemented touch-id and fingerprint login for MyHumana
  • Researched and implemented IBM’s Watson Campaign Automation into the MyHumana mobile application on iOS and Android to enable custom push notification services.
  • Created bash scripts to improve machine setup time for new associate developers.
C#Java.NET FrameworkAndroid Development

Michigan state university

Michigan State Capstone Experience - Software Engineer

Aug 2017Dec 2017 · 4 mos · East Lansing, MI

  • Developed the MSU mobile application for both Android and iOS to enhance the overall campus experience for 50,000+ students, faculty, employees, and visitors
  • Information added includes dining hall menus, building and parking lot locations and directions, campus event information, student schedule and grades, employee org charts, faculty schedules, twitter feed of various MSU official accounts, popular department information, and the ability to log in and add/save user preferences
  • Won the Design Day Urban Science Sigma Award for the best overall capstone experience
JavaAndroid DevelopmentPresentation SkillsPublic Speaking

Auto-owners insurance

Associate Software Developer

May 2015Aug 2015 · 3 mos · Lansing, Michigan Area

  • Created a database to replace outdated record retention forms.
  • Developed COBOL production code for the mainframe team to improve performance.
  • Produced analysis reports, flowcharts, and wrote program code to improve and maintain current systems.
  • Developed tests for new programs written to eliminate risk of data loss.

Education

Michigan State University

Bachelor’s Degree — Computer Science

Jan 2013Jan 2017

Roscommon High School

High School Diploma — Prerequisite

Jan 2009Jan 2013

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