Full Stack Engineer, Billing

PostHog helps engineers build better products. We are a single platform to analyze, test, observe, and deploy new features. We give engineers product & web analytics, session replay, feature flags, experiments, a CDP, SQL access, and a data warehouse… and there’s plenty more to come.

PostHog was created as an open-source project during Y Combinator's W20 cohort and had the most successful B2B software launch on HackerNews since 2012 - with a product that was just 4 weeks old. Since then, more than 70,000 companies have installed the platform. We've had huge success with our paid upgrades, raised $27m from some of the world's top investors, and have shown strong product-led growth - 97% driven by word of mouth. 

We're growing quickly but sustainably - we're default alive, averaging 10% monthly revenue growth, with >$10m ARR. We're staying focused on building an awesome product for end users, hiring a handful of exceptional team members, and seeing fantastic growth as a result.

What we value

• We are open source - building a huge community around a free-for-life product is key to PostHog's strategy.

• We aim to become the most transparent company, ever. In order to enable teams to make great decisions, we share as much information as we can. In our public handbook everyone can read about our roadmap, how we pay (or even let go of) people, what our strategy is, and who we have raised money from.

• Working autonomously and maximizing impact - we don’t tell anyone what to do. Everyone chooses what to work on next based on what is going to have the biggest impact on our customers.

• Solve big problems - we haven't built our defining feature yet. We are all about shipping fast, talking to users, and iterating.

We're looking for someone to own and scale our billing system - the way we actually make money here at PostHog ;) You'll be part of the Growth team, which at its core is responsible for making sure that our customers can get started with any of the products, subscribe, and eventually pay us money.

Though almost everything at PostHog is built in public, this isn't as true for billing work as it often involves sensitive IP. Nonetheless here are some example things you’ll be working on:

• Building a world-class billing system that will scale to $100m+ of revenue

• Iterating and experimenting with our subscription and payment flows and UI

• Scaling and maintaining our usage reporting system so that it can keep up with our hyper-fast customer growth

• Owning our revenue dashboards and queries

• Creating support for new billing schemes for products we are launching

• Improving the billing administration experience for Sales and CS

• Experience as a full-stack engineer with a focus on the backend

• A keen ability to think through and around edge cases galore

• A working knowledge of SQL

• A love for making simplicity out of complexity (and you don't mind refactoring to clean things up)

• You have started a project from scratch. You might have led a project, been a founder previously, or built an impressive side project.

Nice to have

• Experience building and scaling billing systems

• Some experience managing and deploying with k8s

About the team

The growth team is responsible for the core things that make PostHog work as a business. As the only team that builds products to tie all the other products together, we’re primarily responsible for making our overall company strategy a success. It’s a very fun and unique position to be in. We own: 

• Multi-product onboarding and activation

• Cross-product tooling

• Our internal billing service

• Feature entitlements

• Signup & authentication

• Revenue tracking & forecasting

The growth team has a very wide breadth of responsibility and incredibly high autonomy in what we work on and how we get it done. 

If this sounds like what you’d love to be doing, we can’t wait to hear from you. If you’re not sure that you exactly fit the above criteria, get in touch anyway. Alignment with our values is just as important as experience! 🙏

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