Bill Zissimopoulos
Founder And Owner at Navimatics Corporation
Kirkland, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolBill Zissimopoulos is a founder-led software engineer and entrepreneur with 25 years of systems and product engineering experience and over a decade of business leadership running Navimatics and secfs.net. He blends deep low-level expertise in filesystems, systems programming and networking with product-minded execution—shipping mobile and desktop navigation apps that reached Apple's top-grossing lists and millions in sales. An author of WinFsp and a frequent trending open-source maintainer on GitHub, he has contributed critical fixes to libfuse, Git for Windows and other cross-platform filesystem projects. His background includes research OS kernel work, patents in networking and security, and senior engineering roles at Microsoft and Netscape, reflecting a rare mix of research, product and shipping experience. Based in Kirkland, WA, he also brings practical team-building and mentoring skills from recruiting through delivery. Outside engineering he’s an aviator and sailor, a hint at his appetite for complex systems and disciplined risk-taking.
11 years of coding experience
15 years of employment as a software developer
BSc, Mathematics, BSc, Mathematics at Ethnikon kai Kapodistriakon Panepistimion AthinonUniversity College London
Stackoverflow
555reputation
25kreached
5answers
11questions
Github Skills (36)
symlink10
filesystem10
posixct10
wp-api10
freebsd10
windows10
c1110
winapi10
c1710
go10
github-api10
posix10
fileio10
file-handling10
file-processing10
Programming languages (19)
Github contributions (5)
winfsp/sshfs-win
May 2016 - Jul 2022
SSHFS For Windows
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:8 releases, 2 reviews, 74 commits in 6 years 2 months
Contributions summary:Bill primarily contributed to the development and improvement of the `sshfs-win` project, focused on enhancing the functionality and usability of the Windows SSHFS implementation. Their work included modifying the build process, incorporating fixes and updates from the upstream SSHFS project, and adding features, such as support for command-line arguments and improved command-line handling. Furthermore, the user was involved in designing and implementing the WiX installer to package and distribute the software.
sshfswindowssftpssh
winfsp/hubfs
Mar 2021 - May 2022
File system for GitHub & GitLab
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 release, 277 commits, 1 PR in 1 year 2 months
Contributions summary:Bill implemented a core back-end component for the file system, focusing on interaction with the GitHub API. They added the necessary functionality to authenticate against GitHub and interact with the REST API to fetch user and repository information. The user also made improvements to caching and organization of the retrieved data. The primary focus appears to be establishing the foundation for a Git-based file system interacting with GitHub's services.
filesystemgitlab
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