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Spanning Trees

SiriusXM / Pandora Radio

Here, I had the amazing opportunity to experience being in the music industry through music-technology. I got hands on with AI and agents also, all very exciting.

https://www.siriusxm.com/
The Marine Corps Squad Bay App (w/ VML, formerly Wunderman Thompson)

Dynamic team, amazing tech stack, impactful work. A rewarding experience.

https://www.marines.com/explore-the-corps/squad-bay.html
With Joy Inc. - An event planning company

More B2C experience: This company is a top player in a highly competitive space, rated #1 on People Magazine in fact. Every role was hands-on, dynamic, and impactful. As a backend software engineer, I worked on gift card processing, financing, and product delivery solutions, utilizing a modern tech stack.

https://withjoy.com/
Equinox Group - a fitness company

My first B2C experience: To work on an app that I could integrate into my own schedule, and to get in-person feedback from members made my experience here that much more rewarding. Behind the scenes was a fluid, hands-on, and encouraging culture, along with a solid technology stack. As a backend software engineer, I collaborated with different feature-based squads, departments (e.g. design, front end, data), and regions.

https://equinox.com/
Lifion by ADP - an HR and Payroll company

Here I had the opportunity of working with a modern, robust, and established platform that services the needs of companies in a variety of sectors. I also had the opportunity to work cross-domain (with payroll, talent, benefits, and more).

https://lifion.com/
Trilogy Education Services - a workforce accelerator

This company partnered with Columbia Engineering for one of their web development bootcamps. I worked on campus as a teacher's assistant for one of the first 6-month sessions. Some of the final projects appeared to have been built by full-fledged corporations. I have no doubt that the graduates have all of the tools they need in order to start awesome engineering careers.

https://trilogyed.com/
Oracle + CrowdTwist, Inc. - a software (SAAS) company

This company provides loyalty/rewards points solutions for various clients. I had the great experience of working on their platform and building projects for some of their clients. From a technical standpoint, this is a solid platform. From an operational standpoint, this company moves with resolve.

A.R.T. Advisors, LLC (Analytics, Research & Trading) - a quantitative hedge fund

This investment bank deals with buying and selling stocks, and I developed some trading and market data solutions for them.

https://whalewisdom.com/filer/a-r-t-advisors-llc
Trigger - An interactive, graphical simulation for mobile platforms

A very talented artist hired me as a programmer to build this proof-of-concept. We perservered through many challenges in order to craft this user experience.

https://youtu.be/IzKVzimVYlM
Super Juice - My first game project

This started off as a school project, but my younger brother liked it so much that I just had to finish it. I ported the application from its original PC version and released it to the App Store and Google Play in dedication to him. Many of our friends on social media downloaded it.

https://youtu.be/RLYSWnmIogo

This page was made with the Sycamore framework. The quote below is randomly selected from a list of 75 quotes. https://sycamore-rs.netlify.app/

isaac.cespedes1@gmail.com
2025