AI Security · Application Security · Software Engineering

Welcome to 717 DEV

AI security and application security delivered by experts who know how real systems are designed, built, and attacked.

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What We Do

Three Pillars

We secure the AI you ship and the applications you depend on — and build the software when nothing on the shelf fits.

AI Security

We review models and pipelines, test for prompt injection and jailbreaks, harden the model and data supply chain, and threat-model the LLM-backed features you're shipping.

Application Security

Secure SDLC, threat modeling, code review, and dependency hygiene — security engineered into the application, not bolted onto it.

Software Engineering

Production-grade software, built by the same engineers who review it. Custom solutions when off-the-shelf can't take you where you need to go.

AI Security

Securing the AI You Ship

LLM-backed features create a new attack surface — prompt injection, output handling, retrieval manipulation, and the supply chain that brings the model in. We review your design at the architecture, the code, and the operational layers.

  •   AI & LLM Threat Modeling
  •   Prompt Injection & Jailbreaks
  •   Retrieval & Tool-Use Boundaries
  •   Output Handling & Sanitization
  •   Model & Data Supply Chain
  •   Red-Team Evaluation
See AI security services
Application Security

Hardening the Software You Depend On

Threat modeling, code review, architectural analysis, and adversarial testing — the engineering work of building security into an application from the inside out.

  •   Application Security Review
  •   Penetration Testing
  •   Supply Chain Security
  •   Secure SDLC
  •   System Hardening
  •   Audit & Compliance
See application security services
Software Engineering

Software Built Secure by Default

Production-grade software, designed and shipped by the same engineers who review it. We build with security in the foundation rather than the patch list.

  •   Custom Software Development
  •   Web Apps
  •   APIs & Integrations
  •   Secure Architecture
  •   DevSecOps
  •   Cloud-Native Builds
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How We Show Up

What's Built In

Practices that come with every engagement — not as add-ons or upgrades.

Senior, end-to-end

One engineer scopes, runs, and delivers. No handoffs, no account layer between you and the work.

Re-test included

A finding closes when it's verified fixed. Re-test is part of every engagement — remediation is documented, not assumed.

Reports for both audiences

Executive summary in business language, plus technical findings with reproduction steps. Built for engineers and execs alike.

Get in Touch

Start a Conversation

Whether you're scoping a new initiative, evaluating risk, or exploring options, we'd be glad to hear what you're working on.

Reach us directly.

Tell us what you're working on. Most inquiries receive a response within one business day.

Email info@717dev.com Phone 717.856.7486