About

My name is David Keener and, put as simply as possible, I solve problems.

All right, reality is a bit more complex than that, so here’s the Summary from my Resume, which perhaps sheds a bit more light on my capabilities…

Enterprise Solutions Architect | Active TS/SCI Clearance | Cloud & Cybersecurity | BS in Computer Science 25+ years architecting mission-critical, enterprise-scale systems for federal defense and intelligence clients (DHS, CISA, General Dynamics, RTX/Nightwing). Proven track record leading multi-team cloud migrations, zero trust implementations, and high-throughput cybersecurity data platforms on AWS, Azure, and GCP. Hands-on architect who codes, leads teams, and delivers — from trade studies to production deployment.

Career Highlights

• Raytheon (RTX) / Nightwing — (2018 – 2026) — On 500-person+ DOMino Program for DHS/CISA
  • Enterprise Architect: (Jan 2026 – May 2026)
  • Section Architect, Cloud Services: (May 2025 – Dec 2025)
  • Section Architect, Cyber Mission Infrastructure Platform: (Mar 2020 – Apr 2025)
  • Architect / Team Lead, Cyber Threat Management: (Nov 2018 – Mar 2020)
• General Dynamics Advanced Information Systems (GDAIS) — (2011 – 2018) — On 120-person+ DDCS program for DHS
  • Deputy Chief Architect: (May 2017 – Nov 2018)
  • System Architect / Team Lead, Cyber Indicators Analysis Platform: (Nov 2011 – May 2017)
• Metrostar Systems — (2009 – 2011)
  • Senior Solutions Architect
• Voxant / Grab Networks — (2008 – 2009)
  • Architect / Team Lead
• AOL — (2003 – 2008)
  • Web Architect / Team Lead, Business Technologies Release Management
• CareerBank.com — (1999 – 2003)
  • Co-Founder / Web Architect — An Internet startup, later acquired by OnTargetJobs

Public Speaking

I am an experienced public speaker who regularly gives presentations at work, particularly as a government contractor in the Defense and Intelligence space, as well as in numerous other venues.

• Technical Talks: I have presented numerous technical sessions on topics as diverse as Java, Ruby on Rails, Apache SOLR (an open source search engine), business models, various Java technologies, etc.
  • Events: AOL Ruby Users Group, AOL Unconference, DC Computer Consultants Meetup, DC Ruby Users Group, DevIgnition, GFIRST Federal Conference, Indie Computer Consultants Association, NationJS, Northern Virginia Java Users Group, Northern Virginia Ruby Users Group, RSA Conference, RubyNation, Shenandoah Ruby Users Group, SunnyConf.
• Writing-Related Topics: As a Side Job, I’m a professional SF and Fantasy writer. In addition to appearing on panels at numerous conventions, I also run writing-related workshops at numerous events.
  • Events: Balticon, Capclave, District 29 Toastmasters Conference, Feral Writers Workshop Day, Hourlings Annual Workshop Day, Rappahannock Writers Conference, RavenCon, WorldCon, plus numerous DC-area libraries.
  • Workshops: For more information, see the Media page on DavidKeener.org,
    my Author website.

Unsurprisingly, I am available for Speaking Engagements, for both technical and writing-related topics. If interested, please contact me from my Contacts page. My rates are flexible, and can sometimes be waived for events that provide demonstrable public benefit.

Technical Conferences

Together with a group of fellow IT professionals, I founded and ran several successful Technical Conferences. They were two-day, multi-track events featuring 25 – 30 speakers and audiences of 200 – 300 people. The events were hosted at venues such as local hotels, corporate conference centers (AOL, Oracle, CapitalOne, etc.) and small commercial conference centers in the DC metropolitan area.

The Technical Conferences included: