130×
Core banking acceleration
Rewrote legacy SQL at a top-10 U.S. insurer (USAA), cutting back-office loan processing from 48 hours to 22 minutes.

IBM Gold Consultant · Business Partner · Champion
Enterprise Db2 modernization without rip-and-replace.
Zero-downtime migrations, mission-critical HA/DR, and governed AI for Fortune 100 and federal systems of record.
Selected outcomes
Engagements that moved runtime, risk, and architecture — not slideware.
130×
Rewrote legacy SQL at a top-10 U.S. insurer (USAA), cutting back-office loan processing from 48 hours to 22 minutes.
50+ TB
Operated hundreds of production databases across large sharded clusters, plus 10+ TB federal healthcare estates.
0 downtime
Migrated core Db2 estates from Linux on Z to x86 and Google Cloud using IIDR CDC, HADR, and high-throughput loads.
35+ yrs
From COBOL/CICS and Db2 z/OS to watsonx, Claude, MCP servers, and production RAG — same operator, full stack.
Services
Principal consulting for organizations that cannot afford guesswork on their systems of record.
01
Enterprise modeling, SQL/DBMS tuning, partitioning/MDC, EXPLAIN-driven remediation, and capacity planning for LUW and z/OS.
02
Linux on Z → RHEL/x86/GCP, SQL Server → Db2 LUW, Oracle/MAXIMO → OpenShift on AWS using IIDR/CDC, QREP, and HADR patterns.
03
Multi-standby HADR, Q/SQL Replication, InfoSphere CDC, cloning, and snapshot strategies for failure-tolerant estates.
04
Python/Bash DBA automation, IaC, Docker and OpenShift packaging, and operational tooling that removes toil.
05
watsonx and Claude-backed control planes, MCP servers, RAG pipelines, and fail-closed policy enforcement on systems of record.
06
Principal-level incident response, architecture reviews, and C-suite guidance when the database is on the critical path.
Featured capability
A neuro-symbolic governance framework at the mainframe–LLM intersection — IBM watsonx and Anthropic Claude advising, deterministic rules deciding.
Built for enterprises that need AI velocity without surrendering auditability on Db2 systems of record. DataSentinel combines agent orchestration, policy enforcement, and complete audit trails so probabilistic models stay inside operational guardrails.
Six MCP servers and production RAG pipelines support real governance workflows — not demos that evaporate at the firewall.
Experience
Robert D. Proffitt — IBM Gold Consultant for Data & AI, IBM Champion, and principal of DBA TopGun.
2020 – Present
DBA TopGun, LLC · IBM Business Partner
2016 – 2020
SinfoniaRX
1990s – 2016
VA · ObjectRocket · Consert · USAA · IBM · U.S. Army
Select client engagements
Credentials
Partnership status and certifications that match the work on the floor — not badges collected for a slide.
Five-year continuity, 2020–2024
2021 recognition
2026
Current through 2027
2026
2025
Full credential history: credly.com/users/robert-proffitt
Contact
Advisory, retained consulting, and fractional architecture leadership for Db2 estates and AI governance programs.