About

Work Experience

• Systems Reliability Engineer, Cloudflare

  Aug, 2021 - Present

  SRE on the Edge Infrastructure team, owning reliability and automation for Cloudflare's global edge network of 310+ colos.

  • Rotated through operational oncall covering 310+ edge colos globally; led incident response and authored post-mortems for high-severity customer-impacting events.

  • Designed and built an automated colo recovery system using Temporal workflows, orchestrating the full recovery sequence for offline/degraded edge colos, including Redfish and IPMI power cycling from chat ops.

  • Built a just-in-time access system for edge jumphosts with temporary, audited access grants and automatic expiration. Extended to FedRAMP High colos via dedicated GCP jumphosts with firewall enforcement.

  • Designed and built an AI-powered operational memory system using sentence-transformer embeddings, a local vector database, and LLM-generated summaries to surface relevant alert context during oncall.

  • Led end-to-end migration of the Salt CI pipeline from TeamCity to GitLab CI. Reduced CI runtime, standardized dependency management, and shipped complementary tooling.

  • Authored RFC and drove implementation of upstream Debian repository snapshotting, hardening the fleet's apt supply chain with gpg validated packages progressively deployed following a staged health-mediated rollout instead of direct upstream pulls.

• HPC Systems Engineer, Oak Ridge National Laboratory

  Jun, 2018 - Aug, 20213 years 2 months

  Systems engineer at the Oak Ridge Leadership Computing Facility (OLCF), provisioning and operating large-scale HPC clusters including Summit and Andes.

  • Provisioned Andes, new 700 node HPC cluster - largest commodity cluster procured by ORNL to date.

  • Wrote custom tool (Anchor) to boot HPC machines from container images. Transitioned several large-scale systems to use it.

  • Developed eBPF wrapper (greggd) to compile and load Linux kernel profiling programs and stream data via Telegraf to Kafka.

  • Extended Let's Encrypt Golang projects to create in-house certificate issuer for host authentication bootstrapping.

  • Contributed to open source projects to improve system health and monitoring; used to create load-balanced and highly available data transfer cluster.

  • Helped lead a team of student interns in the '19 Student Cluster Competition.

  • Created Helm charts and automated pipelines to move system services to Kubernetes.

  • Developed CI pipeline to stage Puppet changes on bare metal servers.

  • Reviewed proposals for new HPC systems; assisted in their provisioning and deployment.

  • Used Puppet to configure and manage large-scale systems.

• DevOps Engineer, MultiMechanics

  Jan, 2018 - May, 20184 months

  Short-term contract building automated cross-platform build infrastructure for simulation software.

  • Created automated build system using Vagrant. Converted software tools from Windows to Redhat and SUSE environments.

  • Configured and installed PBS-Pro job scheduler to better share computing resources; led training on its usage.

• Student Intern, High Performance Computing, Texas Advanced Computing Center

  Feb, 2016 - Aug, 20171 year 6 months

  Student intern developing automated HPC testing and monitoring tooling, and competing in the SC16 Student Cluster Competition (4th place).

  • Developed an automated HPC testing harness using Jenkins, PyTest, and CMake that integrates with Slurm.

  • Created a heatmap visualization showing historical degradation and improvement in system performance.

  • Designed, built and managed a cluster of high performance compute nodes for the Student Cluster Competition.

  • Developed remote power monitoring system using SNMP, Graphite, and Grafana.

  • Attended Supercomputing Conference 2016 to compete with student teams from around the world; placed 4th overall.

• Science and Engineering Apprentice, Applied Research Laboratory, UT Austin

  May, 2014 - Aug, 20151 year 3 months

  Undergraduate research apprentice developing GPS data collection and processing tools for navigation research.

  • Created a suite of cross-compatible unit tests in C++ for open source software.

  • Redesigned the method of reading/writing RINEX files to use OOP encapsulation.

  • Developed an inexpensive COTS GPS data collection platform using Python; decodes binary streams and writes out to formatted RINEX files.

Projects Experience

• Anchor, Oak Ridge National Laboratory

  Jan, 2019 - Jan, 20212 years

  Extensible initrd module to boot HPC clusters from immutable squashFS container images with a read-write overlay, replacing in-house provisioning scripts with container tooling.

  • Designed as a dracut initrd module: fetches a squashfs image at boot, mounts it read-only with a tmpfs overlay, and uses ACME/Step-CA mutual-TLS certificate bootstrapping to authenticate nodes before image download.

  • Deployed to production clusters at OLCF; supported both serverless (Kubernetes) and local management-server provisioning modes.

• greggd, Oak Ridge National Laboratory

  Jan, 2019 - Jan, 20212 years

  Golang daemon that compiles and loads eBPF C programs into the Linux kernel at runtime using gobpf/bcc, attaches kprobes and perf output maps, binary-deserializes kernel structs via reflection, and streams structured data in InfluxDB line protocol to a local Unix socket.

  • Deployed to large-scale HPC systems at OLCF; provided low-overhead kernel observability (file opens, exec, block I/O latency, TCP session lifetime) without modifying the kernel or rebooting nodes.

• git-remote-s3

  Jan, 2021 - Present

  Rust CLI tool implementing a Git remote helper that allows using an S3-compatible object store as a git remote repository.

  • Implements the full Git remote helper protocol in Rust.

  • Supports push/pull/clone against S3-compatible backends (Backblaze B2, AWS S3, etc.).

• Cloudflare Workers Photo Gallery

  Jan, 2025 - Present

  Self-hosted image gallery and Google Photos uploader running entirely on Cloudflare Workers, R2, KV, and Images - no compute server required.

  • Gallery viewer built with Workers static assets, Fancybox, and Tailwind; thumbnails served via live Cloudflare Images transforms.

  • Google Photos picker integration for direct-to-R2 uploads using OAuth, KV-backed session state, and Cloudflare Access for auth.

Skills

Education

Certificates

Publications