Backend Engineer

1 Month ago • All levels • Backend Development • $230,850 PA - $252,720 PA

Job Summary

Job Description

PostHog is seeking a Backend Engineer to join its Billing team, responsible for the infrastructure that drives revenue. The role involves scaling the billing system to handle over $100 million in revenue, optimizing data pipelines, and driving architectural decisions for billing infrastructure. The engineer will also focus on improving data accuracy and performance, and supporting new billing schemes. PostHog values open-source contribution, transparency, and autonomous work, emphasizing innovation and iteration to solve complex problems and build a defining product.
Must have:
  • Extensive backend engineering experience
  • Familiarity with Python and SQL
  • Experience with workflow orchestration and task processing tools
  • Ability to think through edge cases
  • Proficiency in simplifying complexity and refactoring
  • Experience with performance optimization and scaling challenges
  • Experience starting a project from scratch
Good to have:
  • Experience building and scaling billing systems
  • Familiarity with the modern data stack
Perks:
  • Generous, transparent compensation & equity
  • Unlimited vacation (with a minimum!)
  • Two meeting-free days per week
  • Home office
  • Coworking credit
  • Private health, dental, and vision insurance.
  • Training budget
  • Access to our Hedge House
  • Carbon offsetting
  • Pension & 401k contributions
  • We hire and pay locally
  • Company offsites

Job Details

Team Billing

Backend Engineer

  • Department

    Engineering

  • Location

    Remote (US | EU, UK, EMEA)

  • Timezone(s)

    GMT +2 to GMT -7

About PostHog

We’re equipping every developer to build successful products by giving them a suite of products to analyze, test, observe, and deploy new features. We currently offer product and web analytics, session replay, feature flags, experiments, a CDP, SQL access, a data warehouse, and LLM observability… and there’s plenty more to come.

PostHog was created as an open-source project during Y Combinator's W20 cohort. We had the most successful B2B software launch on HackerNews since 2012 with a product that was just 4 weeks old. Since then, more than 100,000 companies have installed the platform. We've had huge success with our paid upgrades, raised bags of money from some of the world's top investors, and have extremely strong product-led growth – 97% driven by word of mouth. 

We're growing quickly, but sustainably. We're also default alive, averaging 10% monthly revenue growth and with more than $20m 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. We also have regular team-wide feedback sessions, where we share honest feedback with each other.

  • 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 acting fast, innovating, and iterating.

Job Summary

We're looking for a backend engineer to help scale our billing system. You'll be part of the Billing team, which at its core is responsible for the infrastructure that allows our products to make money. You'll focus on the complex backend systems and data pipelines that keep our billing running smoothly.

What you'll be doing

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:

  • Scaling our billing system backend to handle $100m+ of revenue and beyond

  • Optimizing complex batch processing jobs and workflow orchestration for usage reporting and quota limiting

  • Building and maintaining data transformation pipelines that turn raw invoice data into internal reports, investor reports, and GAAP compliant financials

  • Driving architectural decisions for scaling our billing infrastructure

  • Improving data accuracy and performance across our billing systems

  • Supporting the implementation of new billing schemes for products we are launching

Requirements

  • You have extensive backend engineering experience

  • You are very familiar with Python and SQL

  • You have experience with workflow orchestration and task processing tools

  • You enjoy thinking through and around edge cases galore

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

  • You enjoy working on performance optimizations and scaling challenges

  • 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

  • You have experience in building and scaling billing systems

  • You're familiar with the modern data stack

If you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate!

#LI-DNI

Salary

We have a set system for compensation as part of being transparent. Salary varies based on location and level of experience.

Learn more about compensation

Location

(based on market rates)

Level

Step

Salary calculator

  1. Benchmark (United States - San Francisco, California) $243,000
  2. Level modifier 1
  3. Step modifier 0.95 - 1.04
Salary $230,850 - $252,720plus equity

Benefits

  • Generous, transparent compensation & equityGenerous, transparent compensation & equity
  • Unlimited vacation (with a minimum!)Unlimited vacation (with a minimum!)
  • Two meeting-free days per weekTwo meeting-free days per week
  • Home officeHome office
  • Coworking creditCoworking credit
  • Private health, dental, and vision insurance.Private health, dental, and vision insurance.
  • Training budgetTraining budget
  • Access to our Hedge HouseAccess to our Hedge House
  • Carbon offsettingCarbon offsetting
  • Pension & 401k contributionsPension & 401k contributions
  • We hire and pay locallyWe hire and pay locally
  • Company offsitesCompany offsites

Get more details about all our benefits on the Careers page.

Your team's mission and objectives

Q3 2025 Objectives

Pato

  • Work with Data Warehouse team on the new dbt pipelines and the new revenue data model
  • Lead pricing implementations (new products + changes in existing products)
  • Move Stripe flows to Billing admin UI (permissions, traceability, logging, etc)
  • Optimize API response times (performance, caching, split endpoints)
  • Improvements in Forecasting + Spike detector

Pawel

  • Enable Max to answer the majority of billing support tickets
  • Improve billing error tracking and alerting to detect and resolve new errors and failing tasks ASAP
  • Improve the stability and performance of usage reporting and quota limiting
  • Improve pricing UX to make it easier to understand and anticipate
  • Benchmark product analytics pricing against competitors for different customer profiles (example/guide for product teams)

Mine

  • Migrate all key business metrics to the new revenue model as our single source of truth
  • Help Fraser and Janani deliver fully reconciled, audit ready revenue reporting
  • Launch end to end marketing -> sales -> revenue attribution, tying marketing leads to SFDC to revenue
  • Complete switch from leads to tasks in Salesforce with updated workflows

Nice to haves

  • Enable billing support for platform organizations (e.g. API access, usage reports, quota limiting)
  • Enable local payment methods (e.g. UPI in India)
  • Improve self-serve credit purchase flow
  • Improve trial handling (e.g. skip billing, per product trials)

Interview process

We do 2-3 short interviews, then pay you to do some real-life (or close to real-life) work.

  • 1
    Application (You are here)
    Our talent team will review your application

    We're looking to see how your skills and experience align with our needs.

  • 2
    Culture interview
    30-min video call

    Our goal is to explore your motivations to join our team, learn why you’d be a great fit, and answer questions about us.

  • 3
    Technical interview
    45 minutes, varies by role

    You'll meet the hiring team who will evaluate skills needed to be successful in your role. No live coding.

  • 4
    Founder interview
    30 minutes

    You have reached the final boss. It's time to chat with James or Tim.

  • 5
    PostHog SuperDay
    Paid day of work

    You’ll meet a few more members of the team and work on an independent project. It's challenging, but most people say it's fun!

  • 6
    Offer
    Pop the champagne (after you sign)

    If everyone is happy, we’ll make you an offer to join us - YAY!

Apply

(Now for the fun part...)

Just fill out this painless form and we'll get back to you within a few days. Thanks in advance!

Bolded fields are required

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