Jussi Kukkonen
Open Source Software Engineer at Google
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolJussi Kukkonen is an open source software engineer with 13 years of experience and a deep focus on Linux systems and software supply chain security. Currently on Google's Open Source Security Team, he maintains critical projects like python-tuf and sigstore-python, helping harden secure update and signing infrastructures used broadly in the ecosystem. His background spans embedded Linux, mobile UX, devops, release engineering and CI, giving him a rare combination of low-level systems expertise and release-oriented product sense. Known for pragmatic, security-first engineering, he also brings leadership, community stewardship and clear communication to complex, high-trust projects. Based in Helsinki, he often contributes to testing and infrastructure improvements that quietly raise the reliability of widely relied-upon open source security tooling.
13 years of coding experience
18 years of employment as a software developer
MSc, Surveying, (unfinished), MSc, Surveying, (unfinished) at Teknillinen korkeakoulu-Tekniska högskolan
English, Finnish
Stackoverflow
14,217reputation
977kreached
382answers
1question
console
top-5%
gtk
top-1%
unit-testing
top-5%
python
top-5%
linux
top-5%
Github Skills (23)
python10
gtk10
console9
testing9
unit-testing9
os-development9
security9
linux9
software-update9
it-security9
open-source9
certificate-revocation9
git-repository8
package-repository8
rust6
Programming languages (20)
Github contributions (5)
theupdateframework/python-tuf
Jun 2020 - Jan 2023
Python reference implementation of The Update Framework (TUF)
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:2 releases, 1437 reviews, 659 commits in 2 years 7 months
Contributions summary:Jussi primarily contributed to the security and functionality of The Update Framework (TUF) project's Python implementation. Their work involved addressing code vulnerabilities, specifically removing a potential download failure related to the content-length header. They also updated comments and corrected dependencies, which shows a focus on improving the project's maintainability and security. Furthermore, the user contributed to enhance testing infrastructure, improving the robustness and reliability of tests.
pythonsecuritycompromiserevocationupdate
jku/python-tuf
Jun 2020 - Mar 2025
A framework for securing software update systems
Contributions:51 PRs, 534 pushes, 474 branches in 4 years 10 months
securityupdatesoftware-update
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.