Our People
Jack Harmon
CEO and Founder of Extended ERP
I've worked in the government contracting space since 2016, first at Unanet, then PWC, and finally Extended ERP. I studied Economics in undergrad at the University of Mary Washington, Accounting at George Mason University, and Data Science at Georgetown University. Extended ERP has been a fantastic outlet for me to combine those skills with my government contracting knowledge. I work hard to help my clients navigate complex regulations and internal business rules, with as few key strokes as possible.
During my time off you can find me working on motorcycles in the garage, tinkering with electronics in my workshop, or spending time with my family.
Šárka Dyršmídová
Project Manager
Šárka has been a vital part of Extended ERP since 2021, starting as an intern and quickly proving herself indispensable. She now serves as both our Project Manager and in-house Accountant, leveraging her education from the University of West Bohemia in the Czech Republic. As our sole international team member, Šárka brings a unique perspective and unwavering commitment to every project she manages.
When she’s not driving success at work, Šárka enjoys exploring new cultures and perfecting her culinary skills, always bringing creativity and dedication to everything she does.
Luis Migel Perez
Compliance Coordinator
Luis is an integral part of the compliance team at Extended ERP, specializing in the Cybersecurity Maturity Model Certification (CMMC). He is currently pursuing a degree in Business Administration while honing his technical skills through Python programming courses. Luis focuses on researching CMMC standards, updating documentation, and developing cybersecurity training to strengthen our team’s capabilities.
Outside of work, Luis channels his creativity into writing and personal projects, always striving to bring fresh ideas to the table. We’re thrilled to have him contributing his unique perspective and skills to our mission.
Milenko Simikic
Software Engineer
Milenko Simikic is a seasoned Full-Stack Developer with extensive experience since 2017. Holding a Bachelor’s degree in Computer Science from the Faculty of Science in Novi Sad, Milenko currently works as a Software Engineer, specializing in building robust and scalable applications across both front-end and back-end technologies. With a strong passion for coding, he continually seeks innovative solutions in his work.
When he's not coding, Milenko enjoys an active lifestyle, frequently riding and racing bicycles, hiking in the great outdoors, and staying engaged with various sports.