Robert Jeffrey Holyoak

T

Senior Software Engineer

Trustwave Amtrak

Jun 2024 - Sep 2025 (1 year 4 months)

As a Senior Software Engineer, I designed and implemented a robust cybersecurity analytics infrastructure to protect enterprise systems and infrastructure. My key contributions include: • Designing ingestion pipelines that integrate over 100 cybersecurity data feeds into the DataBee platform and Snowflake analytics environment. • Building automation workflows and analytics dashboards using Snowflake, Streamlit, Power BI, and React, which enabled faster threat investigation and response. • Developing backend services and integrations to normalize and correlate security events across heterogeneous data sources. • Delivering production-ready deployments across hundreds of enterprise systems and workstations. • Collaborating with distribu

Database Administrator II / Backend Engineer

Intel Corporation

Aug 2023 - May 2024 (10 months)

Supported enterprise data systems and modernized legacy internal applications. Key Contributions • Administered MS SQL, PostgreSQL, and Elasticsearch clusters supporting enterprise workloads. • Built Python/FastAPI/React/MS SQL applications to replace legacy C#, PHP, and MS Access applications. • Developed ETL pipelines ingesting high-volume log data into relational and search databases. • Optimized SQL Server and Elasticsearch queries improving reliability and performance of internal analytics tools. • Delivered technical prototypes and architectural documentation for modernization initiatives. Tech: Python, FastAPI, SQL Server, PostgreSQL, Elasticsearch, React

Senior Software Engineer

ZeroFox

Jun 2021 - Mar 2023 (1 year 10 months)

Developed backend infrastructure for a large-scale threat intelligence and cybersecurity analytics platform. Key Contributions • Designed and maintained REST APIs supporting threat intelligence data pipelines. • Implemented backend services using Python, Go, Django, MySQL, and Elasticsearch. • Improved query performance by optimizing Django ORM and SQL queries across high-volume datasets. • Contributed to containerized microservices deployed across Dev/Stage/Production environments. • Produced OpenAPI / Swagger documentation enabling easier integration with external customers. Tech: Python, Go, Django, MySQL, Elasticsearch, Docker, Terraform

V

Senior Software Developer

Vigilante ATI (Acquired by ZeroFox)

Aug 2019 - Jun 2021 (1 year 11 months)

Built backend services and APIs supporting a cybersecurity data lake platform. Key Contributions • Developed new APIs and backend services using Python, Django, PostgreSQL, and Elasticsearch. • Built ETL pipelines processing high-volume cybersecurity datasets used by revenue- generating APIs. • Improved API performance and reliability across distributed systems. • Supported cross-functional teams delivering new capabilities in a startup environment. Tech: Python, Django, PostgreSQL, Elasticsearch, Data Pipelines

Q

Software Engineer

QL2 Software

Jul 2015 - Aug 2018 (3 years 2 months)

Primary U.S. developer supporting real-time data processing systems used in commercial data products. Key Contributions • Maintained and enhanced real-time systems written in C, C++, Perl, and SQL. • Restored automated testing infrastructure improving product reliability and release cadence. • Coordinated development work with offshore engineering teams.

Senior Programmer Analyst

Black Hills Energy

Dec 2006 - Mar 2015 (8 years 4 months)

As a Senior Programmer Analyst, I developed enterprise software and data systems that supported energy operations, ensuring efficiency and reliability across the organization. Key contributions included building full-stack enterprise applications using Perl, SQL, MS SQL Server, and Oracle, which enhanced operational capabilities. I delivered comprehensive reporting, analytics, and asset management tools utilized across various operational departments, significantly improving decision-making processes. Additionally, I supported mission-critical enterprise systems and led infrastructure upgrades to maintain optimal performance. My role also involved managing highly advanced Microsoft Excel spreadsheets to track available energy on the grid, i

Robert Jeffrey Holyoak

About

Detail

Timeline

Résumé