104 lines
5.5 KiB
Markdown
104 lines
5.5 KiB
Markdown
---
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name: Paul Halvorsen
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keywords: 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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left-column:
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- 'Sr Software Developer'
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- 'Email: [paul.halvorsen@pm.me](mailto:paul.halvorsen@pm.me)'
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- 'Phone: +1-410-236-4665'
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- 'Last Updated: \today'
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right-column:
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- 'Personal Blog: [https://flow.halvo.me](https://flow.halvo.me)'
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- 'LinkedIn: [www.linkedin.com/in/paul-halvorsen](www.linkedin.com/in/paul-halvorsen)'
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- 'Git Repo: [https://git.halvo.me/paul](https://git.halvo.me/paul)'
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- 'Citizen of the United States'
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---
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# Summary
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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.
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# Work Experience
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## Binary Defense
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**Sr Software Engineer**: April 2022 - Present
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- Rust development including: tokio (test), reqwest, anyhow, serde, windows, cargo, cmake, and WIX
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- Python development using pyenv, pipenv, cython, docker, GitLab pipelines, and static compilation
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- Develop security alarms for Windows, Linux (Debian and RedHat), and MacOS: Event driven by Windows Events, file and directory updates, and network connections
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- Written RFC and ADR to drive design and decision making on project direction
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- Design and build encrypted SQLite DB (configuration and cache), network containment, and secure key exchange and authentication
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- Design and build HTTP and NATS Rest API for receiving configuration (JSON) and sending data to backend servers and Microsoft Azure
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- Aid in distributed deployment to dozens of customers with hundreds of endpoints
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## Kyrus Tech
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**Sr Software Engineer**: Nov 2020 - April 2022
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- Perform test driven development: C, Python/Pytest, Docker, GitLab CI/CD, Ghidra
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- Build covert communications and file transfers proxy: HTTPS, Apache Thrift, Rest API
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- Design compact router fingerprinting and vulnerability analysis: Android, TCP/IP, StreamCypher
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- Modify C code to suppress system logging in various Linux Kernel versions
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## Parsons
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**Cyber Security Software Engineer**: Apr 2018 - Nov 2020
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- Develop covert Windows application: C, C++, Python
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- Build modular solution for plugin architecture and distributed deployment
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- Design custom API for minimal communications on limited bandwidth
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- Encrypt storage and comms using AES shared key to maintain confidentiality and integrity
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- Build back-end service for file storage and search: Java, Tomcat, NiagaraFiles (NiFi), nginx, Hadoop, MySQL, LDAP, RBAC
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- Create API for uploading files via web interface or CLI
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- Generate metadata for searching
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## NSA
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**Security Software Engineer**: Nov 2011 - Apr 2018
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- 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
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- Design Rest and JSON API to transfer data between targets, server, and UI
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- Distribute covert JavaScript to targets across US government networks for enumeration and exploitation
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- Design front-end to provide a dynamic UI with real time target data, graphs, and charts
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- Design MySQL database to hold and quickly query enumeration and exploitation data
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- Advise and develop vulnerability mitigation strategies for various military and government customers
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- Train and provide SOPs to NSA RedTeam operators for various tools
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**Systems Engineer**: Sept 2009 - Nov 2011
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- Deploy, maintain, and monitor 30+ systems with 130+ Red Hat Enterprise Linux (RHEL) servers: LDAP, DNS, Apache, NiFi, Hadoop, Apache, Puppet, DHCP, PXE
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- Develop and deploy monitoring, reporting, and issue correcting scripts: Python
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- Organize, train, and participate in team performing 24x7 call-in rotation
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- Responsible for 5+ domestic and foreign system deployments
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## Salisbury University
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**Software Developer**: Nov 2006 - May 2008
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- Funded through the Wallops Flight Facility (NASA)
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- Provide simplified UI and scenario builder for the Satellite Tool Kit (STK): Managed C++
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- Design risk assessment scenarios for launch vehicles and UAVs over the DELMARVA peninsula
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- Collaborate with Geographic Information Science (GIS) for mapping
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**Lab Administrator**: Sept 2007 - May 2009
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- Support Math and CS departments at SU
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- Maintain the Linux labs on campus: dual boot OpenSUSE, WindowsXP, and OpenSUSE server
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- Perform backups, updates, user management (LDAP), disk quotas, and remote access
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# Education
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- **University of Maryland Baltimore Campus**: Masters in Computer Science; 2013. Thesis: "Stateless Detection of Malicious Traffic: Emphasis on User Privacy"
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- **Salisbury University**: Bachelors in Computer Science, Minor in Math; 2009. Magna Cum-Laude
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- **Security+** (Expired): ID: COMP001021281239; Exp Date: 04/04/2024
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- **Royal Military College (RMC Canada)**: Training in OpenBSD development and administration
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# Miscellaneous
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- **RedBlue Conference**: Presented combination web enumeration/exploitation tool
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- **National Conference for Undergrad Research (NCUR)**: Presented development of STK scenario building and manipulation
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- **SANS Courses**: Staying up-to-date on security research
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- **Homelab**: Proxmox running test VMs, email, cloud storage, gitea, DNS, multimedia, genealogy, and static web pages
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- **Web Admin for PTA**: Setup and maintain WordPress pages, calendar, and blog
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