Axel Persinger
Founder CNO Engineer at nullptr security
Washington, District of Columbia, United States
Summary
👤
Senior🎓
Top SchoolAxel Persinger is a founder and CNO engineer with eight years of hands-on offensive security and reverse-engineering experience, currently leading nullptrsec, a boutique firm focused on advanced vulnerability research and exploitation. He has delivered high-impact work across government and commercial clients, from developing custom CTF frameworks and 5G vulnerability research to automating large-scale endpoint threat hunting across 50k+ assets. Axel’s background blends low-level Windows kernel and firmware analysis with pragmatic engineering—building tooling and automation that accelerate vulnerability discovery and exploit development. He’s led small, award-winning teams and consistently translated research into operational capabilities and secure developer environments. Based in Washington, D.C., he pairs a cryptography-and-intelligence-informed CS education with a reputation for rapid prototyping and creative problem solving. A detail that often surprises collaborators: beyond offensive ops he routinely rearchitects production security tooling to improve speed and developer productivity.
8 years of coding experience
3 years of employment as a software developer
Cryptography and Intelligence Analysis Computer Science, Cryptography and Intelligence Analysis Computer Science at Drexel University
Stackoverflow
1reputation
70reached
0answers
2questions
Github Skills (62)
openstreetmap10
geotools10
ogc10
qgis10
tms10
wps10
geographical-information-system10
gdal10
water10
cross-platform10
data-management10
wcs10
wms10
gis10
spatial10
Programming languages (5)
Github contributions (5)
NullSeile/LinkNeuralNetwork
Nov 2018 - Feb 2021
Contributions:13 commits, 11 pushes, 1 branch in 2 years 3 months
NullSeile/imgui
Jan 2022 - Jan 2024
Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
Contributions:1 PR, 25 pushes in 2 years
user-interfacedependenciescppgraphical-user-interfacegui
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