Y Combinator Senior Backend Engineer
Summary
Designs, builds, and maintains scalable backend systems for a mobile subscription monetization platform, primarily using Python and PostgreSQL.
RevenueCat removes the headaches of building and scaling in‑app subscriptions. Since graduating from YC’s S18 batch we’ve grown into the default monetization platform for mobile: we’re in >40% of newly shipped subscription apps, we process $12B+ in annual purchase volume, and we help everyone from a solo dev in Brazil to the OpenAI mobile team understand and grow their revenue.
We’re a remote‑first crew of 150+, spread across 25+ countries, and guided by values we actually practice: Customer Obsession, Always Be Shipping, Own It, and Balance. If you want your work to touch hundreds of millions of end‑users (and help the developers behind them get paid), you’ll fit right in.
We are looking for a Backend Engineer to join our engineering team and help design, build, ship and support end to end features and products that will help developers grow their business. We want to bring somebody with a product mindset, passionate about shipping products and with an eye for reliability, scalability and performance.
About you:
You have 5+ years of experience working as a software engineer designing and maintaining complex/large/growing systems.
You are comfortable writing and debugging SQL.
You love debugging and finding the root cause of production issues.
You love shipping good products.
You have excellent command of at least one of the mainstream programming languages.
You know how to ship high quality code using good testing practices in iterative cycles.
You collaborate well with others and can communicate effectively in a fully-remote culture.
You are proactive. When you see something broken, you jump on it to fix it or suggest improvements.
You are versatile and a fast learner.
Bonus:
You have experience in Python.
You have experience in PostgreSQL.
You have experience building SDKs.
You have shipped a mobile app with in-app purchases.
You have some experience with React and SPA applications.
In the first month, you'll:
Meet frequently with your team and mentor to get up to speed.
Setup and familiarize yourself with repositories, task management, the dev environment.
Implement and ship your first project.
Familiarize yourself with the RevenueCat dashboards, logging, debugging tools, cloud providers, infrastructure management and general architecture.
Familiarize yourself with workflows and subscription business concepts.
Within the first 3 months, you'll:
Be able to scope and work on projects self-sufficiently.
Learn the basics of incident response, and be part of the on-call rotation.
Participate in code reviews, and contribute in other ways (testing, visibility, etc.) to improve reliability and quality of the codebase.
Understand every product owned by your team.
Understand and improve many of the codebases that the team works with.
Within the first 6 months, you'll:
Review code, create proposals, and contribute to architectural discussions.
Contribute to the team roadmap and technical direction.
Be an expert on a couple of your team’s focus areas.
Have shipped a major product or feature.
Within the first 12 months, you'll:
Know all the major components of our system and be able to debug complex issues.
Have your own initiatives for improving our products, understanding the current issues and priorities.
Be able to spec and architect medium-large projects, gather feedback and design validation and rollout plans.
Mentor other engineers joining the team.
Influence the org to improve general reliability, scalability and performance.
What we offer:
Competitive equity in a fast-growing, Series C startup backed by top-tier investors, including Y Combinator
10-year window to exercise vested equity options
Fully remote and flexible work environment
4-5 weeks of suggested time off annually for mental, physical, and emotional recharge
$2,000 USD for workspace setup and $1,000 USD annual stipend for continuous learning
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