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Résumé

Andrea Rogers

Email: targetdisk1394@gmail.com | GitHub: targetdisk | Website: /~targetdisk

My name is Andrea, and I am working every day to command every aspect of modern computers. I started learning scripting languages in my hometown in Nauvoo, IL at the age of nine on the whiteboard with a longtime family friend before eventually finding myself cutting my teeth on interesting contracts in the D.C. and Baltimore areas. I hope to one day be able to call myself a “full-stack developer” as I get closer and closer to understanding the circuits that make up modern computer systems. Currently, I understand most things down to the OS/embedded firmware level, but I am starting to dip my toes in the digital logic/FPGA pool.

Technical Overview

  • C, C++, Objective-C, Java, Perl, Python, and shell programming
    • Able to learn new libraries, frameworks, and languages quickly
  • Strong understanding of security best practices
  • Amazon, Azure, Digital Ocean, Google, and Linode clouds
  • Expert-level automation experience
    • Continuous integration with Circle CI, GitLab runners, and Jenkins
    • PCRE/grep/sed, Python re and ECMAScript regex
    • Linux: LFS, Yocto, Buildroot, Gentoo Crossdev, Red Hat, Debian/Ubuntu, SUSE, and others
    • KVM/Qemu, Xen, Docker, and Podman virtualization
    • Embedded toolchain and Linux image creation
  • On-prem/colocated server administration
  • WiFi and general hardware hacking, password cracking, and basic auth sniffing

Professional Summary

High-Z, LLC | May 2023 to present

Computer Engineer, Organizer

  • Provide embedded firmware development services under contract.
  • Offer software development and systems integration services to various customers.
  • Develop networking solutions around yet-to-be-standardized NIST finalist algorithms.

Cornerstone Integration, Inc. | October 2022 to May 2023

Computer Engineer

  • Ported embedded operating systems to new boards.
  • Implemented solutions using remote out-of-band management.
  • Prototyped networking solutions around yet-to-be-standardized NIST finalist algorithms.
  • Wrote proof-of-concept code on embedded systems for public and private customers.

Mahlet Consulting | August 2019 to April 2020

Computer Engineer

  • Worked on embedded C code that targeted MicroBlaze soft cores on Xilinx Ultrascale FPGAs
  • Worked to port aforementioned C code from a big loop running on bare metal to FreeRTOS
  • Wrote a C/Python extension wrapping Phil Karn’s LGPL’d Reed-Solomon FEC
    • Wrote automated test suite for my Reed-Solomon C/Python extension
  • Tested code on very expensive 100G OTN hardware with expensive QSFP modules (never broke anything!)
  • Experimented with running Linux on Xilinx MicroBlaze soft cores
  • Assembled a tcpreplay/DPDK cluster with a Python FastAPI frontend for testing network performance of our in-house IP cores.

MachineSense | April 2019 to July 2019

Embedded IOT Engineer

  • Helped inform key architectural decisions in cloud and embedded middleware architecture
  • Wrote SSH reverse shell tool for access to and configuration management of embedded ARM systems in industrial environments.
    • Automatic sshd config file parsing
    • Forwards local SSH port to C&C server based on the embedded device’s MAC address(es).
    • Automatic key provisioning with synchronization to central RSA public key repository.
  • Responsible for deploying to over one hundred embedded ARM devices in an industrial environment.
  • Reworked misbehaving prototype and final prototype boards with SMD hot-air soldering station and iron
  • Performed R&D testing on embedded machines monitoring industrial motors, vacuum pumps, blowers, and dryers
  • Built custom Linux-based firmware images for embedded hardware.
  • Reverse-engineered competing product’s REST API
  • Web app vulnerability testing
  • Debugged ZMQ IPC sockets with custom pcap filter in tcpdump

Walmart Labs | October 2018 to February 2019

Cloud Infrastructure Analyst

  • Provided recommendations and manual tagging changes to over 20,000 systems
  • Created python code to create new portals for other departments to request additional capacity
  • Supported 3000+ internal applications and their e-commerce in an Openstack cloud environment
  • Managed Walmart’s Azure cloud capacity
  • Reverse-engineered an internal Ruby-based tool with the Ruby debugger (without prior Ruby knowledge)
  • Performed capacity planning and performance analysis

Ventech Solutions | February 2018 to August 2018

DevOps Engineer

  • Responsible for key DevOps infrastructure for the Centers for Medicare and Medicaid Services
  • Managed and upgraded HA Proxy, Nexus Repository Manager, Jenkins, and GitHub Enterprise servers
  • Improved automated software deployment pipelines with Jenkins
  • Deployed custom Red Hat Enterprise Linux AMIs to AWS
  • Performed manual and automated deployments to Solaris infrastructure
  • Wrote custom Bash shell scripts targeting GHE and Jira REST APIs
  • Wrote custom script for monitoring Splunk forwarders

Conduit Sports | September 2017 to February 2018

Systems Administrator (Short-term contract)

  • Built out a custom suite of VM provisioning and configuration scripts leveraging the Linode cloud API
  • Helped our electrical engineer layout circuit boards using KiCAD, when not setting up cloud infrastructure

Inspire | September 2016 to August 2017

Software Engineer

  • Responsible for maintaining backend code, updating site templates, and writing SQL for the Inspire website
  • Resurrected old legacy code with modern patches
  • Helped introduce new features to the site
  • Deployed and used Bitbucket, GitHub Enterprise, and SSH-based pure Git installations to servers
  • Deployed CircleCI continuous integration system
  • Wrote experimental Python code to assist data scientist with her research
  • Reviewed my peers’ Perl, SQL, and JavaScript code
  • Helped test and develop the company’s TAP/prove-based test suite
  • Updated our in-house release tools and scripts

Jones LLC | July 2015 to September 2016

Principal Systems Administrator

  • Developed hardware and software solutions that allow parents to keep better tabs on their children’s web browsing habits and internet use
  • Maintained Java code written by contractor
  • Deployed and managed Bitbucket on Linode cloud
  • Wrote new Bash shell scripts, daemons, and utilities
  • Created custom Live ISO images for home network appliances with custom install scripts, Systemd units, daemons, and firewall rules
  • Configured custom firewall rules using ufw, firewalld, and iptables
  • Installed and deployed pfSense
  • Managed switch administration and network cabling

Open Source Contributions

2023

  • Wrote automations for building Gentoo crossdev images using Podman containers.
  • Fixed compiling Apple’s XNU kernel version 1504.15.3 on Snow Leopard on my darwin-xnu fork.
  • Fixed compiling Apple’s C++ demangler on Snow Leopard on my fork.

2021

  • Advanced Macintosh Substitute (AMS): I contributed a big-endian fix for the X11 frontend of my friend Josh Juran’s classic Macintosh emulator.
  • avc_psp: a script that encodes videos for the Sony PSP’s very specific flavor of AVC (a subset of modern H.264). Can be run on batches of videos across a cluster of nodes.
  • SnapCam for Python: A free software reimplementation of iON’s Camera+ app with a functional V4L2 streaming demo.
  • squid-dl: A massively parallel yt-dlp-based YouTube downloader with proxying support.
  • Wrote a test suite capable of testing Bash, C, Perl, and Python code from a single test harness.
    • https://github.com/swolegoal/weeb2psp/blob/main/scripts/test-runner

Personal Study

  • Learning Rust and Haskell as time permits
  • 2022 - present, SecKC regular
  • 2017 – 2021, Unallocated Space regular
  • B-Sides DC 2017, Charm 2019, KC 2022, KC 2023, and KC 2024 attendee
    • 3rd place in 2017 B-Sides DC Wireless Village CTF
  • 2016 – 2021, HacDC member
  • 2016 - 2021, DC Perl Mongers
  • 2014, Attended BYU-I for computer science