Sam Griffin

SVP of Engineering  ·  Payments & Technology

I build payments infrastructure that restaurant brands trust at scale. Over 10+ years in the industry I've shipped enterprise ordering platforms for names like Taco Bell and Dunkin' Donuts, then brought that same focus to help mid-market brands get world-class digital experiences.

Based in Denver. Originally from Boston. When I'm not thinking about payments rails, I'm hiking, skiing, or failing to tire out my golden retriever.

10+ Years in Payments & POS
Enterprise Taco Bell · Dunkin' Donuts · and more
Mid-Market Scaling digital ordering for growing brands

Experience

01

Vice President of Engineering

Fiserv

Present

CardFree acquired September 4th, 2025. Still Leading engineering across CardFree, but with a focus on integrating our platform more into Fiserv and Clover ecosystems.

02

Senior Vice President of Engineering

CardFree

Jul 2022 — Present

Leading engineering across CardFree's order-ahead and contactless payment platform, driving reliability, performance, and security standards while partnering with leadership on team resourcing and product delivery.

03

Vice President of Engineering

CardFree

Nov 2019 — Jul 2022

Managed and hired cross-functional backend, merchant portal, and web application teams. Partnered with leadership and product on resourcing and feature delivery, overseeing reliability, performance, and security standards.

04

Senior Software Engineer / Technical Lead

CardFree

Jan 2017 — Nov 2019

Managed the Denver .NET team and oversaw individual performance and career development. Led high-profile client launches including Dunkin' Donuts while contributing hands-on to backend APIs, database schema design, and production support.

05

Software Engineer

CardFree

Dec 2014 — Jan 2017

Individual contributor focused on loyalty, gift card, and credit card payment domains. Also contributed to ordering and menu functionality and overall platform support.

06

Software Developer

IHS

Feb 2014 — Nov 2014

Built internal applications for inventory management and product sales. Grew into team lead role and drove key innovations including the product's first use of MVVM in the UI.

07

Senior Full Stack Application Developer

Agency Oasis

Jun 2013 — Feb 2014

Managed large-scale projects and led architecture and planning for major financial and technology clients, including compliance-heavy and multilingual solutions. Named a Sitecore MVP in 2014.

08

Full Stack Application Developer

Agency Oasis

Jun 2011 — Jun 2013

Built dynamic .NET web applications with Sitecore CMS across industries including healthcare, legal, and financial services.

restaurant
Food Pics

Culinary adventures and recipes
code
Tech & Coding

Development insights and tutorials

Say Hello

Always open to interesting conversations about payments, product, or building things.

samjgriffin89@gmail.com