About Zac
Background and Education
Before joining SEP, Zac held leadership roles across engineering, consulting, and enterprise technology. He scaled product development teams, implemented organizational rigor, and guided organizations toward more mature delivery practices. He has overseen major enterprise clients and led cross-functional teams in product development. His career has spanned product management, professional services, and technical program management, giving him a strong foundation in both client service and scalable solution delivery.
Working at SEP
As an Engagement Manager, Zac partners with clients to deliver custom software through strong relationships and thoughtful delivery. He hosts SEP’s Behind the Product podcast, leads the creation of the company’s Data Practice, and co‑leads SEP’s Leadership Development Program. Zac also serves as VP, corporate development for Frontega, SEP’s investment arm, where he oversees the portfolio and supports early‑stage founders.
In the Community
Zac gives back through his role as vice president of the board of directors for Heart of a Man, a local nonprofit organization dedicated to supporting men in the community.
On a Personal Note
Zac lives in Westfield, Indiana—conveniently close to SEP’s offices—with his wife and two sons. They enjoy family bike rides on the Monon Trail and frequent visits to local coffee shops, especially Rivet Coffee. The Darnells appreciate the balance of family life, community connections, and the proximity to work that Westfield offers.
SEP News Posts
SEP Appoints Jason LaJeunesse as Director of Data
Westfield, IN — SEP is pleased to announce the creation of a new leadership role, Director of Data, and the appointment of Jason LaJeunesse to the position. This role was created to support client needs as organizations modernize their data platforms, prepare for AI adoption, and build durable, long-term data foundations. “Data has gone from a step […]
Crispus Attucks Grad Named 2025 SEP Foundation Maker Scholar
The SEP Foundation Maker Scholarship selects IU Indianapolis-bound computer science student as the 2025 recipient Westfield, Indiana – The SEP Foundation is excited to announce the 2025 recipient of the SEP Foundation Maker Scholarship: Mutombo M., a recent graduate of Crispus Attucks High School. Mutombo will begin his freshman year this fall at IU Indianapolis, […]
SEP Strengthens Leadership Team with Key Promotions to Drive Future Growth
Westfield, IN, 06/30/2025 – SEP, a leader in software product development, announces key promotions as part of its long-term leadership strategy. As a 100% employee-owned company, SEP prioritizes succession planning and empowering leaders to ensure sustained success and alignment with its core values. Chris Atkinson, has been promoted to Chief Delivery Officer. With nearly 30 years […]
SEP Appoints Marty Draper as Vice President of IT, Security, and Compliance
WESTFIELD, IN, June 4, 2025 – SEP, a leading software product design and development firm, announces the appointment of Marty Draper as Vice President of IT, Security, and Compliance. This newly created role highlights SEP’s commitment to strengthening its foundation in technological advancement, data security, and regulatory practices. The addition of Draper positions SEP to […]
SEP Recognized as Top Workplace in Central Indiana for 2025
Westfield, IN – May 12, 2025 – SEP, a top software development firm based in Westfield, Indiana, has once again been awarded the first-place honor in Central Indiana’s Top Workplaces. This year, SEP captured the top spot in the Midsize Companies category based exclusively on employee feedback collected through a third-party. The anonymous survey is […]
SEP Wins TechPoint’s 2025 Exceptional Employer Mira Award
SEP Recognized as Indiana’s Top Tech Employer, Winning TechPoint’s Prestigious Mira Award Westfield, Indiana – SEP has been named Exceptional Employer by TechPoint at the 26th annual Mira Awards. This award recognizes companies that are developing talent through skills-based hiring of STEM roles; advancing diversity, equity and inclusion; cultivating workplace culture; and making a positive […]