Eph Baum

About Eph Baum

I’m a Senior Software Engineer with decades of experience spanning startups and enterprise-scale platforms. At Cars Commerce, I help power the Cars.com marketplace by maintaining and evolving core Elixir/Phoenix applications deployed on Kubernetes (EKS), leveraging Docker, PostgreSQL, GraphQL, and modern DevOps practices to ensure reliability and scalability.I’ve led as both an engineer and a mentor, cultivating environments rooted in psychological safety, radical transparency, and servant leadership. I believe resilient systems and resilient teams go hand in hand.Whether solving complex distributed systems challenges, guiding platform modernization, or mentoring engineers, I blend technical rigor with human-centered leadership. At my core, I’m an eternal learner and a believer in the transformative power of technology.

Experience

1. Senior Software Engineer

   Cars Commerce

   Apr 2022 — Present · Chicago, IL, US

   As a Senior Software Engineer on the Marketplace Platform Operations team, I focus on the reliability, scalability, and evolution of the Elixir/Phoenix applications that form the backbone of Cars.com. These services run on Kubernetes (EKS) and leverage Docker, PostgreSQL, GraphQL, and other modern technologies to deliver a resilient, high-performance marketplace at scale.In addition to platform operations, I provide technical oversight of the FUEL advertising platform as it approaches sunset, ensuring a smooth transition of its operations into the Marketplace Media Team. This role allows me to bridge legacy ad-tech systems with our modern marketplace architecture, preserving institutional knowledge while driving forward platform modernization.Key contributions include:• Maintaining and enhancing Elixir/Phoenix services powering Cars.com’s core marketplace.• Improving CI/CD pipelines, monitoring, and incident response for greater operational excellence.• Guiding the FUEL platform’s transition into Marketplace Media, aligning ad-tech with core marketplace systems.• Mentoring engineers and facilitating ceremonies to foster collaboration and growth.

Education

• Codecademy.com

  Web Development

  2012 — 2014

• CodeSchool.com

  Web Development

  2012 — 2014

• Udemy

  Computer Engineering

  2017 — 2019

• Lynda.com

  Web Development

  2011 — 2012

Skills

• Html 5
• Html5
• Css3
• Css
• Javascript
• Jquery
• Ionic Framework
• Cordova
• Angular.js
• React.js
• Web Development
• Website Development
• Web Applications
• Software Engineering
• Software Development
• Mobile Applications
• Graphic Design
• Microsoft Office
• Adobe Creative Suite
• Marketing
• Web Design
• Information Technology
• Typography
• Windows
• Mac Os
• Training
• Email Marketing
• Flash
• Semantic Html
• Os X
• Linux
• Print
• Digital Marketing
• Video Production
• Audio Post Production
• Telecommunications
• Wireless Networking
• Sap
• Jquery UI
• Responsive Layouts