Senior Principal Data Engineer & DBA

Brett Rosenblatt

Sr. Principal Data Engineer / Enterprise Database Architect

Evergreen, CO 80439 212-***-**** ****************@*****.***

Executive Qualifications

** ***** ********** ******** ***erience: Expert-level administration, architecture, and engineering for large-scale production environments across relational and hybrid data tiers.

Multi-Platform Database Mastery: 20+ years of expert Oracle DBA/Architecture (through 19c), expert-level Postgres, RDS, Aurora and MySQL administration, strong experience in AWS (EC2, Step, Lambda, networking), and intermediate experience in Azure/SQL Server

High Availability & Disaster Recovery (HA/DR): Proven success designing and managing robust HA/DR frameworks, clustering, Patroni, replica sets, sharding, and point-in-time recovery (PITR) configurations.

End-to-End Migration & Modernization: Track record of leading complex legacy-to-cloud migrations (Oracle to AWS Aurora/Postgres, MySQL/Lakehouse) including schema conversion and data validation.

Automation & DevOps: Proficient in database task automation using Python and Shell scripting alongside Infrastructure as Code (Ansible/Terraform).

Education & Credentials

Columbia University New York, NY

Technical Track in Relational Database Engineering & Object-Oriented Programming (Oracle) -

Northeastern University Boston, MA

Bachelor of Science in Electronic and Print Communications - 1991

Professional Experience

Rampart Technologies

Aurora, CO

Sr. Principal Data Administrator/Architect Jan 2026 – Jul 2026

Multi-Engine Administration: Administered, monitored, and optimized heterogeneous production database environments including MySQL, and Postgres.

Distributed Query & Performance Tuning: Implemented a Trino cluster acting as a multi-volume, high-performing query federation and access layer across disparate data sources (MongoDB, Postgres, MySQL, Iceberg).

Created a monitoring platform specifically tailored for tracking cluster health, replication lag, and throughput variations across MongoDB, MySQL, and Postgres engines.

Query Optimization & Partitioning: Advanced schema design and configuration optimizations resulting in a 30% performance improvement; automated system-wide partitioning yielding a 100% increase in windowing efficiency.

Modern Data Lakehouse Design: Engineered a Medallion architecture data lake leveraging Minio, Apache Iceberg, and Parquet, fully integrated into a unified data ecosystem.

Implemented multi-threaded backup capabilities

Raytheon / ITEC

Buckley SFB Aurora

Sr. Principal Data Administrator/Architect Jul 2024 – Jan 2026

High Availability Architecture: Successfully transitioned 24+ containerized databases to a highly reliable, robust HA enterprise architecture (Postgres, Oracle, ETCD, HAproxy, Keepalived, Patroni, PgBackrest).

Enterprise Performance Tuning: Established advanced proactive monitoring and performance tuning procedures (indexing, memory strategies, extended statistics) driving a 25% performance boost.

Business Continuity & HA/DR: Designed and implemented comprehensive backup/recovery frameworks to ensure full point-in-time recovery (PITR) capabilities and high availability status across mission-critical systems.

Cloud Modernization: Evaluated existing localized database postures and usage profiles to prepare enterprise database architectures for secure migration into AWS cloud environments.

Prism Analytics Remote

Principal Data Administrator (Grants.gov / HHS) Jan 2024 – Jun 2024

Cloud Migration Leadership: Served as the Lead Architect directing a large-scale migration from RDS Oracle to AWS Aurora Postgres, ensuring strict adherence to federal data governance and security standards. Architected integration between Azure SQL and AWS, and lead tuning/optimization efforts across both environments.

Cloud Automation: Modernized operations by converting legacy cron management into scalable, fully automated Python, AWS Lambda, and CloudWatch architectures.

Data Integration & Cost Modeling: Designed data synchronization pipelines linking public grants infrastructure across Oracle, Aurora, and Azure while delivering cost-optimization analyses for executive stakeholders.

Lockheed Martin

Boulder, CO

Sr. Principal Database Administrator Mar 2023 – Jan 2024

Secure Database Infrastructure (Postgres): Provisioned distributed database clusters across enterprise on-premise and AWS/EC2 (RHEL) architectures.

Compliance & Governance: Hardened database postures, access layers, and configurations to strictly comply with strict STIG requirements.

Infrastructure as Code (IaC): Collaborated directly with DevOps engineers to integrate database deployments into automated Ansible playbooks and CI/CD workflows.

Twill Health

Remote

Senior Database Administrator/Architect Apr 2022 – Feb 2023

Database Upgrades & Cloud Migrations: Directed major database engine version upgrades and successfully migrated over 15 distributed databases into AWS Aurora and Azure SQL from on-prem Oracle and Postgres instances.

Schema Design & Modernization: Reverse-engineered, documented, and redesigned multiple database architectures, converting lag-heavy batch processing to real-time pipelines—reducing lag from 48 hours to 2 hours.

CACI International

Aurora, CO

Senior Database Administrator 2019 – 2022

Data Modeling & Consolidation: Unified disparate, multi-vendor relational systems into optimized, highly relational, and performant single-schema database models.

Cross-Functional Collaboration: Mentored multi-disciplinary development teams and interns on structural database theory, advanced query tuning, and indexing strategies.

Led Oracle/Postgres database administration and migration efforts

The Sphere Barcelona / Tel Aviv

Principal Information Architect 2016 – 2019

High-Volume Global Database Operations: Designed, modeled, and administered a highly distributed, multi-region hybrid cloud environment (Oracle, AWS, MySQL, Neo4J) capable of processing 50,000 calls/second.

Heterogeneous NoSQL Integration: Architected high-velocity data interfaces and API layers bridging Oracle Cloud structures with Redis, MySQL, Cassandra, and Neo4J environments.

Financial Oversight & Cost Optimization: Managed multi-million-dollar cloud provisioning contracts, achieving a 50% operational cost savings through tactical cloud selection and sizing.

Adecco & AT&T

Domestic & International Locations

Software Engineer / Database Specialist 2003 – 2016

Expert Oracle & PL/SQL Tuning: Created a hyper-performant call processing engine processing 100M+ source records daily using advanced PL/SQL collections, bulk-binding, materialized views, and partitioning.

Code Quality & Optimization Governance: Spearheaded cross-team code review sessions using metrics like McCabe and Halstead to audit stored procedures and query execution plans for offshore/in-house developer groups.

Technical Tool Alignment Matrix

Databases

Oracle (Expert), MongoDB, MySQL (Expert), Postgres (Expert), DynamoDB, AWS Aurora (Expert), Redis, Iceberg

Cloud Infrastructure

AWS (EC2, RDS, Lambda, CloudWatch, Redshift), Oracle Cloud (DBaaS, Bare Metal), Azure, Trino

High Availability & DR

Oracle RAC/Data Guard, Postgres/Patroni, ETCD, HAproxy, Keepalived

Automation & Scripting

Python, Shell Scripting, Ansible, PL/SQL, SQL, T-SQL, Python

Monitoring & Tools

CloudWatch, Percona PMM, Datadog, PgBackrest, Toad, TFS, Apache Iceberg, Trino Clusters

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