Oct 2024 – Dec 2025 · 1 yr 2 mos · Remote

• I worked on the HackerOne Agentic Pentesting and Pentesting-as-a-Service platform.
• Full stack application feature development in support of pentesting products (Ruby on Rails, TypeScript, GraphQL)
• Contributed to many aspects of the agentic (LLM based) pentesting product, including: development of the primary pentesting agent with LangChain and LangGraph; development of tools for pentesting agents; development of the agent orchestration platform built with Terraform in AWS. All work was primarily done in Python.

Mar 2021 – Jan 2024 · 2 yrs 10 mos · Austin, Texas Metropolitan Area · Hybrid

• I worked within the Security Team's Detection & Response group where I scaled Cloudflare’s internal SIEM. This system detected and alerted security staff to potential security incidents, along with a host of services used for automation within the detection engineering and incidence response process. Provided on-call operations support for the SIEM system, ingesting multiple TBs daily, along with other automation.
• Go, Terraform, Google Cloud Platform

Apr 2020 – Apr 2023 · 3 yrs · Remote

• I review technical books and provide detailed feedback for authors. To date I have completed review for the following books published by O'Reilly Media:
• Infrastructure As Code, 2nd Edition
• Observability Engineering: Achieving Production Excellence, 1st Edition

Feb 2020 – Feb 2021 · 1 yr

• I led development on a project to improve the company's data pipelines and reduce hosting costs.
• Python, AWS, infrastructure-as-code (Terraform and boto), deployment and management of platform services, Elastic MapReduce, Kubernetes, and Prometheus for monitoring.

May 2019 – Nov 2019 · 6 mos · Austin, Texas Area

• Built a data pipeline for TV show metadata in Python with Apache Airflow running in Kubernetes and using Databricks for the compute environment.
• Note: I was impacted by a round of layoffs in November 2019

Jul 2017 – Apr 2019 · 1 yr 9 mos · Austin, Texas Area

• Developed an analytics solution launched in August 2018. Full Scala development environment, with heavy SQL analytics queries. Worked with Apache Spark and Kubernetes to develop data pipelines and infrastructure to power the analytics system. Collaborated extensively with the Front End team to build a dynamic GraphQL API that served our interactive dashboard system.
• SQL, Scala, Java, Spark, GraphQL, PostgreSQL, Cassandra, Kubernetes

Apr 2013 – Jun 2017 · 4 yrs 2 mos · Chicago, Illinois · On-site

• Worked on everything from web applications to data infrastructure at a startup in the ad / marketing tech space, which was later acquired by Transunion. During the course of my time I transitioned from working on web development to backend services and data infrastructure. In particular, I worked on implementing Kafka as a message bus for buffering database writes, batching outbound requests, and more.
• Java, Python, Kafka, AWS EC2, Cassandra, MySQL, JavaScript, Node.js

Sep 2011 – Mar 2013 · 1 yr 6 mos · Greater Chicago Area

Oct 2008 – Sep 2011 · 2 yrs 11 mos · Chicago, IL

Jun 2006 – Aug 2006 · 2 mos