The Operator’s Perspective
Justin Dendinger
Business Development Manager
The development lead who helps organizations start an honest conversation about testing, then stays with them as the relationship grows.
- Business development
- Client relationships
Introduction
Justin Dendinger is Business Development Manager at Open Security. He came up through the firm as a business development representative and now leads how new relationships start. He is based in Dallas and works with teams nationwide. He is the person many first-time buyers meet when they are not sure what they need tested, and do not want a bait-and-switch.
Expertise
Where Justin leads.
Business development
Opens conversations with security and technical buyers who need a practitioner, not a volume shop.
Business Development Manager; previously BDR at Open Security
Client relationships
Stays with accounts past the first meeting so the engagement that gets sold is the one the operators will run.
Where we work
Based in Dallas. Works with teams on-site and remotely, wherever the engagement needs to land.
San Antonio headquartersExperience & background
How the authority was earned.
Justin leads business development at Open Security after being promoted from BDR in 2025. The job is still the first conversation — just with more of the team’s reputation on the line.
2025–present
Business Development Manager
Open Security
Leads business-development hiring and pursuit from Dallas.
2023–2025
Business Development Representative
Open Security
Related experts
Keep reading the practice.
Ryan Head
Vice President of Sales
The person who turns a technical practice into an executive conversation — so buyers hear what the operators will actually do, not a generic security pitch.
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Iris Dunn
Account Executive
Stays with the account after the first conversation — so the engagement that gets sold is the one the operators will run.
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Chauncey Felix
Business Development Representative
Opens the first honest conversation about testing — then gets you to an operator, not a sequence.
View profile →Start with a straight conversation.
Tell Open Security what you are trying to protect. Justin’s team will get you to an operator — not a sequence.