Justin Lewis, Developer in Grovetown, GA, United States
Justin is available for hire
Hire Justin

Justin Lewis

Verified Expert  in Engineering

Security Developer

Grovetown, GA, United States

Toptal member since June 30, 2022

Expertise
CLinuxPythonJavaPenetration TestingPyTorch
Bio

Justin started programming at 12 and has never stopped expanding his tech knowledge and skills. He has almost 18 years of work experience in the defense industry, six of those working as an IT professional. Justin enjoys working with back-end, low-level technologies and statistical and machine learning frameworks. He is also a fan of Capture the Flag cybersecurity competitions.

Portfolio

US Army
C, Java, Python 3, Penetration Testing, Reverse Engineering, PyTorch

Experience

  • Security - 6 years
  • Linux - 6 years
  • Exploits - 4 years
  • C - 4 years
  • Python 3 - 4 years
  • Reverse Engineering - 3 years
  • Java - 2 years
  • Penetration Testing - 2 years

Availability

Part-time

Preferred Environment

Linux, Python 3, C

The most amazing...

...project I've worked on was the PyTorch implementation of a deep Gatys neural-style transfer algorithm.

Work Experience

Cyber Capabilities Developer

2005 - 2022
US Army
  • Wrote a Zeek plugin to parse a proprietary closed-source wire protocol with no documentation.
  • Integrated third-party protocol parsing capabilities into the open source Security Onion toolkit.
  • Developed a tool to compile hundreds of CSV reports into a single trend analysis presentation.
Technologies: C, Java, Python 3, Penetration Testing, Reverse Engineering, PyTorch

Deep Gatys Style Transfer

https://github.com/jlewis200/Deep_Gatys
It is a PyTorch implementation of the deep Gatys neural style transfer algorithm. The program's purpose is to accept a style image and a content image as inputs and produce a stylized image as output. The stylized image should be recognizable as the content input image while containing the style elements of the style input image. A showcase of the images produced can be found on the GitHub link for this project.
FEBRUARY 2021 - PRESENT

CISSP – Certified Information Systems Security Professional

(ISC)²

MAY 2019 - PRESENT

CompTIA Advanced Security Practitioner (CASP+)

CompTIA

Libraries/APIs

PyTorch

Languages

C, Python 3, Java

Platforms

Linux

Paradigms

Penetration Testing

Other

Exploits, Reverse Engineering, Security, Risk Management

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

1

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring