Experience

Lead Engineer @ Grier Forensics

Apr 2020 - Now
Owings Mills, MD

• Leading Origination: Grier’s research, proposal, and development efforts
• Brought a custom forensics acceleration system to market
• Led multiple teams of software engineers across multiple customer projects, involving
  • Airborne Cyber Defense through Packet Level Non-Repdudiation
  • Offline, Anonymous World Wide Web for Open-Source Intelligence
  • Cyber Security Appliances for Operational Technology, ICS and SCADA Systems
  • Rapid Forensic Device Imaging
  • Email privacy and security
• Developed engineering processes and facilitated firm-wide adoption
• Planned, scheduled, and designed special projects, both internal and customer-facing

Senior Software Engineer @ Grier Forensics

Jan 2016 - Mar 2020
Owings Mills, MD

• Developed a large-scale (600 TB) web data collection and analysis platform
  • Designed and implemented in Scala a framework for storing and analyzing billions of web resources
  • Designed and built a distributed, high-performance web crawler using Apache Spark
• Developed components of an airborne cyber defense solution for tactical IP networks
• Developed Great DANE, a collection of DANE SMIMEA tools enabling email privacy and security using S/MIME.
• Orchestrated software demos for Army, Air Force, SOCOM, and industry stakeholders

Software Developer @ the Functional MRI Facility (NIMH/NIH)

Sep 2011 – Dec 2015
Bethesda, MD

• Developed the ISMRM Raw Data format:
  • Designed and implemented unit tests for the core C/C++ library
  • Developed Python, Java, and Golang implementations/bindings of the ISMRMRD specification
  • Deployed a continuous integration solution using Travis-CI and Github
• Contributed to the Gadgetron Medical Image Reconstruction Framework
  • Added DICOM image generation support
  • Developed continuous integration system, tests, and scripts for retrieving test data
  • Developed methods of interoperability with Python using Boost
• Designed and implemented an image archiving application indexing 1.2 billion MRI DICOM images
• Refactored QA analysis and visualization software for five MRI scanners using Python
• Constructed a C library for creating vendor-neutral ISMRMRD files from proprietary MRI data files
• Deployed secure, collaborative project environments using NFSv4, Kerberos and POSIX ACLs on Linux VMs

Education

M.S. in Computer Science

Georgia Institute of Technology, Fall 2018

B.S. in Computer Engineering

University of Maryland, College Park, Summer 2011

Publications

1. Inati, S. J., Naegele, J. D., Zwart, N. R., Roopchansingh, V., Lizak, M. J., Hansen, D. C., Liu, C.-Y., Atkinson, D., Kellman, P., Kozerke, S., Xue, H., Campbell-Washburn, A. E., Sørensen, T. S. and Hansen, M. S. (2017). ISMRM Raw data format: A proposed standard for MRI raw datasets.. Magnetic Resonance in Medicine Vol. 77(1), 411-421. doi: 10.1002/mrm.26089

Awards

Distinguished Achievement Award

Kelly Government Solutions, 2013

For technical skill, enthusiasm, capacity for learning, and completion of several complex projects.

Distinguished Achievement Award

Kelly Government Solutions, 2015

For computing environment improvements and contributions to ISMRMRD and Gadgetron.

Technical Qualifications

Languages

C++, C, Python, Go, Scala, Java, SQL, JavaScript, HTML, x86/PIC/MIPS assembly, and many more

Tools

Git, GCC/Clang, IntelliJ, Apache Spark/Hadoop, Elasticsearch, LLVM, CMake, GDB, Valgrind, Bison, Flex, QEMU…

Interests

Programming Languages & Compilers

Compiler/Interpreter Construction, Static Analysis, Garbage Collection, Optimization

Operating Systems

Multitasking, Scheduling, Memory Management, File Systems

Modern Computing

Distributed Systems, Machine Learning, Cloud Compute Services, DevSecOps, Data Fusion

Past Personal Projects

Luci - a lightweight programming language

• Imperative, dynamically-typed, bytecode-compiled
• Automatic memory management via garbage collection

DuneOS - simple x86 Unix-like operating system

• Multitasking with preemptive scheduling
• Virtual memory, virtual file system

BreweryDB for Go - Go library for the BreweryDB web API

• Fully-featured bindings to entire API
• Extensive test coverage

Go ACLs - Go bindings to POSIX Access Control Lists

• Full POSIX ACL API
• Go implementations of getfacl and setfacl tools

Nolli - a prototype embeddable, statically-typed programming language

• Fully re-entrant
• Zero dependencies

Thruput - a TCP/UDP network throughput measurement tool

• Offers the ability to measure with multiple, concurrent client connections
• Linux, Windows, OS X interoperability