About Lago
At Lago, we’re on a mission to make billing simpler, more transparent, and more adaptable for SaaS companies.
As the leading open-source billing platform, we empower businesses to build flexible pricing models and scale with confidence.
We’ve raised over $22 million from top-tier investors who believe in our long-term vision. Our platform has attracted 7,000+ stars on GitHub, and forward-thinking companies like Mistral.ai, Together.ai, Groq, and Laravel rely on Lago to power their billing infrastructure.
We’re a team of ambitious, focused individuals who work together to solve hard problems with excellence and accountability.
At Lago, we value reliability and proactivity — we trust each other to own tasks, drive them to completion, and adapt quickly. While we encourage experimentation and “failing fast” when needed, we also expect a steep learning curve: make mistakes, but never twice.
If you're motivated by technical complexity, leadership impact, and building systems at scale—this is the place for you.
What You’ll Do
* Lead and scale Lago’s engineering organization to support a growing customer base and technical footprint.
* Define and drive Lago’s technical vision, engineering culture, and team structure.
* Architect and evolve our event-driven, microservices-based platform to handle billing at scale.
* Ensure security, resilience, and performance of Lago’s invoices and metering infrastructure.
* Partner with Product to build a high-velocity roadmap aligned with customer needs and market opportunities.
* Recruit, mentor, and retain a world-class team of engineers.
* Build scalable processes for code quality, releases, on-call, and incident management.
* Collaborate with founders and leadership to shape company strategy and drive technical execution.
What We’re Looking For
* 10+ years of engineering experience, with 5+ years in leadership roles (Head of Eng, VP, or CTO).
* Deep experience with Enterprise billing systems, payments, or financial infrastructure (Stripe, Adyen, in-house systems, etc.).
* Strong background in event-driven architectures and distributed systems at scale (like Kafka).
* Proven track record of growing and leading high-performing engineering teams in fast-paced environments.
* Hands-on experience with cloud-native technologies (Kubernetes, Terraform, AWS).
* Product mindset: you understand how engineering decisions impact user experience and business outcomes.
* Clear, empathetic communicator with a bias toward action and ownership.
* Comfortable working in an international, remote-friendly environment.
* Ideally based in Paris or London. Based in Europe (CET ±2h) is also fine.
Bonus Points
Experience contributing to or leading open-source projects
Familiarity with usage-based pricing or metering pipelines
Background in security and compliance for fintech or regulated environments
Why Join Lago?
Impactful leadership: Build the engineering team behind a category-defining billing platform
Hard technical problems: Scale mission-critical infrastructure used by nextgen AI and SaaS companies
Remote-friendly: Work from anywhere in France, or join us in Paris
Startup growth: Be part of a fast-growing, well-funded open-source company
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