John Holowczak
Staff Engineer at Broadcom
Greater Boston United States
Summary
👤
Senior🎓
Top SchoolJohn Holowczak is a Staff Engineer and seasoned security researcher with 11 years of experience delivering threat research, malware reverse engineering, and program analysis for enterprise security teams. Based in Greater Boston, he has progressed from SOC analyst to senior threat researcher roles at Carbon Black and VMware and now contributes to Broadcom’s security engineering efforts. He specializes in building binary analysis pipelines, feature engineering for ML-driven detection, and hands-on SIEM and threat hunting operations, bridging research and production defenses. Known for combining deep reverse-engineering skills with system and network administration expertise, he often surfaces practical detection strategies from low-level artifact analysis. An early background in R&D and even campus radio leadership hints at a curiosity-driven, collaborative approach to solving complex security problems.
11 years of coding experience
5 years of employment as a software developer
Bachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at University of Massachusetts Amherst
Github Skills (14)
emulation7
pdf-format6
pdf3
security3
rewrite3
guacamole2
golang1
data-structures1
json1
go1
json-data1
apache1
java1
tomcat1
Programming languages (2)
Github contributions (5)
jholowczak/dotfiles
May 2020 - Jan 2025
Contributions:189 pushes, 1 branch in 4 years 8 months
jholowczak/unicorn
Apr 2022 - Aug 2024
Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, X86)
Contributions:9 pushes, 1 branch in 2 years 4 months
cpus390xcpu-emulatoremulatorsparc
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