5.5 KiB
5.5 KiB
name, keywords, left-column, right-column
| name | keywords | left-column | right-column | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Paul Halvorsen | rust, cargo, python, c, docker, containers, TDD, test driven development, pytest, CI/CD, JavaScript, JQuery, PHP, MySQL, rest, API, JSON, XML, git, GitLab, nginx, remote, testing |
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Summary
I'm a Software Engineer with over 14 years development and 18 years professional experience, with exposure to Rust, C, Python, PHP, Go, JavaScript, Java, and C++ languages; various SQL DBs; tokio, JQuery, and Pytest frameworks; Docker and GitLab CI/CD; and Rest API, NATS, JSON, XML, and nginx technologies.
Work Experience
Binary Defense
Sr Software Engineer: April 2022 - Present
- Rust development including: tokio (test), reqwest, anyhow, serde, windows, cargo, cmake, and WIX
- Python development using pyenv, pipenv, cython, docker, GitLab pipelines, and static compilation
- Develop security alarms for Windows, Linux (Debian and RedHat), and MacOS: Event driven by Windows Events, file and directory updates, and network connections
- Written RFC and ADR to drive design and decision making on project direction
- Design and build encrypted SQLite DB (configuration and cache), network containment, and secure key exchange and authentication
- Design and build HTTP and NATS Rest API for receiving configuration (JSON) and sending data to backend servers and Microsoft Azure
- Aid in distributed deployment to dozens of customers with hundreds of endpoints
Kyrus Tech
Sr Software Engineer: Nov 2020 - April 2022
- Perform test driven development: C, Python/Pytest, Docker, GitLab CI/CD, Ghidra
- Build covert communications and file transfers proxy: HTTPS, Apache Thrift, Rest API
- Design compact router fingerprinting and vulnerability analysis: Android, TCP/IP, StreamCypher
- Modify C code to suppress system logging in various Linux Kernel versions
Parsons
Cyber Security Software Engineer: Apr 2018 - Nov 2020
- Develop covert Windows application: C, C++, Python
- Build modular solution for plugin architecture and distributed deployment
- Design custom API for minimal communications on limited bandwidth
- Encrypt storage and comms using AES shared key to maintain confidentiality and integrity
- Build back-end service for file storage and search: Java, Tomcat, NiagaraFiles (NiFi), nginx, Hadoop, MySQL, LDAP, RBAC
- Create API for uploading files via web interface or CLI
- Generate metadata for searching
NSA
Security Software Engineer: Nov 2011 - Apr 2018
- RedTeam DevOps development of browser enumeration, manipulation, and exploitation: PHP, JavaScript, JQuery, CSS, Python, MySQL, Java, Apache, Tomcat, Linux, Windows, Chrome, Firefox, Safari, IE, Edge
- Design Rest and JSON API to transfer data between targets, server, and UI
- Distribute covert JavaScript to targets across US government networks for enumeration and exploitation
- Design front-end to provide a dynamic UI with real time target data, graphs, and charts
- Design MySQL database to hold and quickly query enumeration and exploitation data
- Advise and develop vulnerability mitigation strategies for various military and government customers
- Train and provide SOPs to NSA RedTeam operators for various tools
Systems Engineer: Sept 2009 - Nov 2011
- Deploy, maintain, and monitor 30+ systems with 130+ Red Hat Enterprise Linux (RHEL) servers: LDAP, DNS, Apache, NiFi, Hadoop, Apache, Puppet, DHCP, PXE
- Develop and deploy monitoring, reporting, and issue correcting scripts: Python
- Organize, train, and participate in team performing 24x7 call-in rotation
- Responsible for 5+ domestic and foreign system deployments
Salisbury University
Software Developer: Nov 2006 - May 2008
- Funded through the Wallops Flight Facility (NASA)
- Provide simplified UI and scenario builder for the Satellite Tool Kit (STK): Managed C++
- Design risk assessment scenarios for launch vehicles and UAVs over the DELMARVA peninsula
- Collaborate with Geographic Information Science (GIS) for mapping
Lab Administrator: Sept 2007 - May 2009
- Support Math and CS departments at SU
- Maintain the Linux labs on campus: dual boot OpenSUSE, WindowsXP, and OpenSUSE server
- Perform backups, updates, user management (LDAP), disk quotas, and remote access
Education
- University of Maryland Baltimore Campus: Masters in Computer Science; 2013. Thesis: "Stateless Detection of Malicious Traffic: Emphasis on User Privacy"
- Salisbury University: Bachelors in Computer Science, Minor in Math; 2009. Magna Cum-Laude
- Security+ (Expired): ID: COMP001021281239; Exp Date: 04/04/2024
- Royal Military College (RMC Canada): Training in OpenBSD development and administration
Miscellaneous
- RedBlue Conference: Presented combination web enumeration/exploitation tool
- National Conference for Undergrad Research (NCUR): Presented development of STK scenario building and manipulation
- SANS Courses: Staying up-to-date on security research
- Homelab: Proxmox running test VMs, email, cloud storage, gitea, DNS, multimedia, genealogy, and static web pages
- Web Admin for PTA: Setup and maintain WordPress pages, calendar, and blog