Carl Brenneisen - Senior IOS Engineer at AllTrails

Carl Brenneisen

Senior IOS Engineer at AllTrails

Atlanta, Georgia, United States

Join Prog.AI to see contacts

Summary

👤

Senior

🎓

Top School

Carl Brenneisen is a Senior iOS Engineer based in Atlanta with 10 years of software experience and seven focused on iOS (Swift and Objective-C). He blends a full-stack background—years working with JavaScript, Node.js and MERN stacks—with native mobile expertise, enabling cross-functional collaboration and practical architecture decisions. At AllTrails he drives growth-focused features to expand paid subscriptions, and previously led iOS efforts at Cigna and Walmart where he delivered high-coverage test suites, coordinated multi-team releases, and built holiday-driven UX/animation features. He has a track record of mentoring teams, establishing CI/CD and linting standards, and shaping app architecture around SOLID principles and modern tooling. As a part-time computer science tutor, he stays sharp by teaching parallel computing, bioinformatics, and iOS development—an uncommon mix that reflects both product-minded engineering and domain breadth.

10 years of coding experience

9 years of employment as a software developer

Biomedical Informatics, Biomedical Informatics at University of Utah School of Medicine

The University of Utah

English

Stackoverflow

Stats

1reputation

0reached

0answers

0questions

Github Skills (9)

fluid6

viper6

web-application6

rxcocoa5

swift4

ios4

rxswift4

reactive3

rxdatasources2

Programming languages (1)

Swift

Github contributions (5)

cbrenneisen/hydro

May 2017 - Oct 2018

Contributions:58 commits, 2 PRs, 54 pushes in 1 year 5 months

decision-supportresuscitationclinical-decision-supportclinicaldecision

cbrenneisen/MendelianSwift

Jan 2017 - Aug 2020

A protocol-oriented framework for solving bioinformatics problems

Contributions:3 PRs, 79 pushes, 5 branches in 3 years 7 months

bioinformaticsproblemssolvingprotocol-oriented

Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.

Request Free Trial