About 717 DEV

A Boutique Practice for Modern Security Problems

717 DEV is a security and engineering firm built around a simple idea: the strongest security work comes from the people who can also read, write, and ship the code.

What We Do

We help organizations secure modern software — from traditional web applications to the AI and LLM-backed systems they're increasingly built on. Our work blends offensive testing, architectural review, and enough production engineering experience to know what's actually feasible to fix.

We're deliberately small. Engagements are run by senior engineers, not handed off. Reports are written to be acted on, not filed. And when remediation needs more than a recommendation, we have the engineering depth to build it.

How We Work

Our engagements are scoped tightly and run end-to-end by one senior engineer — the same person from kickoff through re-test. We aim for clarity at every step: what we're looking for, what we found, what to do about it, and how to verify the fix.

  • Senior engineers on every engagement
  • Findings written for engineers and executives alike
  • Long-term relationships over one-off transactions
  • Engineering depth to remediate, not just report

Where We Work

We work with organizations across regulated and high-stakes industries — from established enterprises shipping their first AI features to smaller teams who need a senior security perspective without hiring full-time. If your problem needs depth, we'd be glad to talk.

Long-Term Relationships

What Clients Say

A small sample of the relationships we've built over the years.

QM Services

Dona Norris

QM Services, Inc

717 Dev has an intuitive way of responding to web and coding needs. They always keep the end user in mind. They did a great job taking our ideas and implementing them into a clean and easy-to-navigate solution.

Penn State University

Karen Kline

Penn State University

717 Dev has provided creative solutions in a timely and efficient manner for a very complex and specialized process. The responsiveness and end results have exceeded our expectations.

Daily Underwriters of America

Dwayne Kepner

Daily Underwriters of America

717 Dev has shown great depth of understanding in a wide range of IT areas. Timeliness of response along with providing spot on solutions has resulted in our continued relationship with 717 Dev!

Have a problem worth a conversation?

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