Team
Meet the Team Behind Kill Bill
Open source billing and payments since 2010
Last updated: October 2026
Short answer
Who is behind Kill Bill?
Martin Westhead, Pierre-Alexandre Meyer and Stéphane Brossier designed and developed Kill Bill in 2010, as an open source project at Ning. Today a distributed team of core engineers maintains the open source platform and builds Aviate, the enterprise offering of Kill Bill, with a global community of users and contributors.
- Created
- 2010, at Ning
- License
- Apache 2.0
- Products
- Kill Bill (open source) and Aviate (enterprise)
- Community
- Mailing list
- Contact
- Talk to the team
History
Kill Bill Since 2010
2010designed at Ning
10,000+commits in the core repository
340+releases of the core
60+contributors to the core
2010
Martin Westhead, Pierre-Alexandre Meyer and Stéphane Brossier design Kill Bill at Ning.
2011
The code is published on GitHub.
2012
First release, Kill Bill 0.1.0.
2015
An enterprise customer goes live, and still runs Kill Bill today.
2016 to 2022
Stable release lines 0.18, 0.20, 0.22 and 0.24.
2026
Kill Bill 0.25 is released.
Figures from the public killbill/killbill repository, October 2026.
Executive Team
Since 2010, Kill Bill has run billing and payments for organizations of every size, from startups to global enterprises. The platform is built to scale with your business, giving you full ownership and control of your billing and payment infrastructure.
What began as an open source project at Ning in 2010 is now maintained by a team of core contributors and a global community. Open source remains at the heart of the project: enterprises get transparency, flexibility and long-term support, without vendor lock-in.
Co-founder, CTO
Extensive experience in software development such as micro-kernel, petabytes storage appliance, distributed systems.
Head of Sales & BD
25+ years leading go-to-market and revenue teams, guiding strategic conversations with organizations from early-stage startups to the Fortune 500.
Engineering Team
Our distributed engineering team builds and maintains Kill Bill across the stack.
Software Engineering, Product Development & Technical Documentation
Expertise spanning backend software engineering, API design, technical documentation, testing, and product development.
Product Engineer
Software engineer and open-source enthusiast, currently developing and maintaining Java-based billing infrastructure.
Billing Systems & Integrations
ML/AI engineer with 20+ years of experience in systems and data-pipeline automation across telecom billing, adtech, video, and algorithmic trading.
Full-Stack Engineer
Full-stack engineer focused on frontend performance and building high-impact products.
Advisors
Co-founder
Technology and architecture leader with deep experience in open source, large-scale platforms, billing, payments, and enterprise transformation.
Co-founder
Technology executive with deep experience in global payments, subscription platforms, and consumer software.