Zack, thinking in a museum

My Present Focus

I’m a full-time freelance senior engineer, helping teams realize their potential and complete their projects. If you have need for someone with my experience, send me an email.

Additionally, I'm working on building tool and code to improve the open-source community and the closed-source developer experience.

Programming Languages & Tools

I am a full-stack engineer with a focus on front-end web and iOS work. I am an expert in Swift, Objective-C, HTML, CSS/SASS, and Javascript. I also have extensive experience with most common server backend languages and frameworks (except Ruby, sorry).

Past Work and Projects

(My highlights reel - for a complete list check my LinkedIn.)

Freelance Work

2018 - Present

I'm available for hire as a freelance engineer, manager, consultant, and mentor. Some of my featured clients include:


I have maintained a long-standing relationship as a contract senior mobile app engineer for Candid™. I've worked both in native code and React Native to mature their app’s experience and development process.

Trialspark & Fi Marketing Sites

I was separately contracted by both Trialspark and Fi to construct their new marketing homepages. Given the specific requirements these companies had, I worked with their teams to quickly build out beautiful and interactive sites based on modern frameworks.

Deer Meets Beer (for Foursquare and Jägermeister)

I was contracted by Foursquare and Jägermeister to complete the construction of their Deer Meets Beer experience. Working with stakeholders from their design, product, and business departments, I helped shape the requirements of the project and was ultimately solely responsible for constructing the front and back end of the experience.


2011 - 2018

I worked for 7 years at Foursquare. Starting as a new grad hire on the API/Server team, then moving to the web team, and finally landing on the iOS team, I would move wherever there was a need for someone to learn a stack and execute quickly.

Once I landed on the iOS team, I rose to be the platform lead in the company, then to manage the Swarm mobile app team, and finally to manage the app engineers for all of our consumer apps.


2008 - 2011
Google and VoodooVox, Inc.

My first summer of college, I interned at a small startup called VoodooVox (now closed). Here I wrote an app for the iOS store ready for launch the very first day it existed.

The next two summers, I interned at Google on their search infrastructure team and then on the Google Sheets team. If you've ever used "Paint Format" in Google Sheets, that was my project.


2006 - 2011
Williams College and Columbia University

I've been programming in BASIC, Java, and HTML since 1998, but I started learning formal computer science while in high school, taking classes at Williams College.

After high school, I attended Columbia University . There, I completed a BA in computer science (while also acting in a lot of theatre).