LINEAGE / 1997—PRESENT
I did not arrive at Data and AI from the side. The work is a progression: campus infrastructure, shipbuilding finance systems, corporate architecture, three formal Chief roles, then building Digital Realty’s Data Office & AI from a one-person launch.
Chief titles at Northrop Grumman were formal HR titles. Pre-Chief roles show how the operating judgment was built. Direct reports and influence are labeled separately. Economics stay labeled as identified, booked, avoided, vendor-equivalent, program estimate, or AOP alignment.
Read the braid as capability accumulating, crossing, and finally operating together.
The line begins in hands-on infrastructure, from campus networks to a base-wide Air Force network modernization, then moves into the finance systems that kept a shipyard operating. Systems judgment came before architecture as a title.
institutional context
A 1943 U.S. Maritime Commission photograph of welder Jennie Mae Turner at the Ingalls shipyard in Pascagoula; it predates Brian’s employment by decades.
institutional context
A U.S. Air Force computer maintenance operations center recorded in 2000, showing the labelled equipment cabinets and overhead cable runs of the period. It is not Keesler and not evidence of Brian’s presence.
institutional context
A welder authenticates the keel of National Security Cutter WMSL 750 at Northrop Grumman Ship Systems in Pascagoula on 29 March 2005, inside the years Brian worked in the shipbuilding sector. It records the yard, not his presence.
institutional context
USS Tripoli (LHA-7) is launched at Pascagoula on 1 May 2017, nine years after Brian left the shipbuilding sector. The same yard, still building.
The unit of work widened from applications to enterprise infrastructure, interfaces, migration patterns, and centralized architecture. The data current opens here, years before data science became a title. The 2012 title change was organizational consolidation, not a demotion.
institutional context
A 1962 Corps of Engineers drawing that identifies every processor, tape drive, and printer in a combat operations center. An estate inventory drawn as architecture, which is what a data centre exit inherits.
Formal Chief roles joined application architecture, data science, and teaching authority. Application architecture direction influenced 600+ software engineers and set enterprise interface standards across the applications estate.
program artifact
A robotic terahertz probe measures coating thickness without contact or damage during F-35 inlet production. This is manufacturing quality assurance on the program, not evidence of Brian’s presence or personal authorship.
Architecture became accountable to an operating plan and a national mission program, with direct leadership and explicitly bounded economic context.
program artifact
The U.S. Air Force and Northrop Grumman conduct a Sentinel stage-one solid rocket motor qualification test in 2025; this is program context, not evidence of Brian’s presence or personal authorship.
institutional context
An unarmed Minuteman III operational test launch in February 2021. Minuteman III is the deterrent system Sentinel is built to replace.
At Digital Realty, five currents operate as one system: infrastructure fluency, architecture, data and ML, enterprise leadership, and teaching authority.
personal artifact
The issued USPTO record for “Private artificial intelligence and data exchange” names Daniel Brian Letort among four inventors.
personal artifact
The issued USPTO record for “Virtual hosting device and service to provide software-defined networks in a cloud environment” names Daniel Brian Letort among eight inventors.
The complete canonical chronology, including the parallel Fellow overlay.
1997–2001 · Education
Mississippi College
Campus technology and network support: networking, servers, desktop support, structured cabling, hardware builds, and an internal help desk. Undergraduate research on Cisco Gigabit Ethernet.
1999–2000 · Role
U.S. Air Force · Keesler Air Force Base, Biloxi, Mississippi
Undergraduate internship supporting a base-wide network modernization: hands-on cabling, rack build-out, switch and router configuration, and server support.
2001–2008 · Role
Ingalls / Northrop Grumman · Shipbuilding Sector
Hired May 2001 at Ingalls; continued after the Northrop acquisition in fall 2001. Finance-system engineering lead with six direct reports inside an approximately 20-person organization, accountable for budget management and reporting systems, SOX controls, scheduled job orchestration, and MARS ERP integration.
2008–2012 · Role
Northrop Grumman · corporate CTO architecture
Moved from sector software engineering into the corporate architecture organization. Named Solutions Architect on enterprise projects that required data, analytics, and architecture together; Data Center Exit was one of them. Early corporate Big Data and data science research and development ran here.
2012–2013 · Role
Northrop Grumman
The Systems Architect group collapsed into Systems Engineering. Enterprise architecture and integration continued under the corporate CTO organization.
2013–2015 · Role
Northrop Grumman
Formal HR title. Architecture direction across the applications estate: approximately 3,000 applications and 8,000 databases, architecture review of approximately 800 enterprise interfaces, and direction for 600+ software engineers as influence rather than direct reports.
2015–2019 · Role
Northrop Grumman
Built and led a dozen-person corporate data science team, set method for hundreds of sector data scientists, and delivered applied machine learning on production programs including F-35 MES/QA. Formal HR title.
2019–2022 · Role
Northrop Grumman
Formal HR title. Architecture accountable to the annual IT operating plan and to mission programs: 22 chief architects as direct reports, architecture and strategy aligned to an approximately $1.6B annual IT AOP rather than a personal P&L, and chief information architecture on GBSD/Sentinel.
2022–Present · Role
Digital Realty
September 2022–Present. EVP reporting from August 2025. Formal HR title. SVP peers; VP-equivalent authority. Data Office & AI built from a one-person launch to 120+ accountable staff on a $30M+ owned annual budget, running MDM and DigitalONE data, investor-grade reporting, and 20+ production AI capabilities.
Build systems operators can run. Put architecture on the money. Teach the method so it survives the person.