My cybersecurity journey started over 10 years ago in enterprise environments, where I cut my teeth on the complex, multi-layered security challenges that large organizations face daily. From managing Palo Alto Networks firewalls to deploying enterprise-scale SIEM solutions with Splunk, I've seen firsthand what it takes to secure critical infrastructure at scale.
At companies like Zayo Group and Kiosk Information Systems, I specialized in network security, endpoint detection and response (EDR), and email security. I became the go-to person for everything from incident response to security automation – often building PowerShell scripts to automate repetitive tasks that would otherwise consume hours of manual work.
Key Enterprise Experience:
- • Network Security Engineering (Palo Alto, Cisco)
- • SIEM Implementation & Management (Splunk Enterprise)
- • Endpoint Security (Cybereason EDR, McAfee ePO)
- • Email Security (Proofpoint, Abnormal Security)
- • Incident Response & Threat Hunting
- • Security Automation (PowerShell, Python)
In 2022, I joined Amazon Web Services as a Security Consultant in the Worldwide Professional Services (ProServe) organization. This role transformed my perspective on what's possible when you combine deep security expertise with cloud-native tools and automation.
As a Security Consultant with AWS ProServe, I've had the privilege of working with customers across a vast array of industries – from telecommunications to manufacturing to FinTech to EdTech. Each customer engagement has reinforced a key insight: the same security principles that protect billion-dollar enterprises can be adapted and scaled down for smaller organizations.
At AWS, I've specialized in Infrastructure-as-Code (Terraform, CloudFormation), network security, application security, and DevSecOps practices. I've learned to think about security not as a bolt-on afterthought, but as code that can be version-controlled, tested, and automated just like any other system component.
AWS Highlights:
- • AWS Security Specialty Certified
- • Security Bar Raiser (SBR) Certified
- • Generative AI Security Maven
- • Container Subject Matter Expert (SME)
- • Multiple customer engagements in DevSecOps and IaC
- • Published APG patterns for security architecture
Here's what I realized: small businesses and entrepreneurs face many of the same security challenges as large enterprises, but they don't have the budgets for dedicated security teams or expensive enterprise tools. They need practical, cost-effective solutions that don't require a PhD in cybersecurity to implement and maintain.
That's where SchreiberCyber comes in. I'm leveraging my enterprise experience, combined with modern AI tools and cloud-native approaches, to help smaller organizations implement security solutions that would have been impossible or prohibitively expensive just a few years ago.
Whether it's setting up proper network segmentation using Infrastructure-as-Code, implementing secure CI/CD pipelines, or helping businesses safely adopt AI tools without compromising their security posture – I bring enterprise-grade thinking to real-world budgets.
What excites me most about this moment in technology is how AI is becoming a force multiplier for security practitioners. Tasks that once required hours of manual work – like threat analysis, configuration reviews, or security documentation – can now be accelerated with the right AI tools.
But here's the crucial part: AI doesn't replace security expertise; it amplifies it. Understanding how to prompt AI effectively, how to validate its outputs, and how to integrate AI workflows into existing security processes – that requires both technical knowledge and experience.
At SchreiberCyber, I'm not just implementing security solutions; I'm showing clients how to leverage AI to maintain and improve their security posture over time. It's about building sustainable, intelligent security practices that grow with your business.
When I'm not thinking about security architectures or Infrastructure-as-Code, you'll find me embracing the Colorado lifestyle I love. I'm an avid outdoors enthusiast who enjoys hiking, skiing, and pretty much any activity that gets me into the mountains.
I'm also a lifelong musician – primarily a drummer and percussionist, though I dabble with other instruments. For eight years, I had the incredible privilege of performing with the in-game entertainment teams for the Denver Nuggets and Colorado Avalanche. Being part of the Avalanche's 2022 Stanley Cup run was an experience I'll never forget. Go Avs!
These experiences outside of technology inform how I approach consulting. Whether it's the discipline required for musical performance or the teamwork essential in hockey, the lessons translate directly to how I work with clients: preparation, practice, and execution matter.
That's my story – from enterprise security engineer to AWS consultant to founder of SchreiberCyber. Every step of this journey has reinforced my belief that great security doesn't have to be complicated or expensive; it just has to be thoughtful and well-executed.
If you're a small business owner wondering how to secure your growing infrastructure, or an entrepreneur looking to implement AI tools safely, I'd love to help. Let's combine enterprise-grade expertise with practical, budget-conscious solutions to build something secure together.
Donny Schreiber
AWS Security Consultant with 10+ years of enterprise cybersecurity experience. Founder of SchreiberCyber, helping small businesses implement practical security and AI solutions. Based in Boulder, Colorado.
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