Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 52 days ago

Billing Engineer

E2B14 open roles

Pay
€80,000 – €120,000 a year
Where
Prague, Czech Republic
Work mode
On site
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowBilling EngineerE2B · Prague, Czech Republic

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on E2B's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

13.9% of postings close within 7 days. Measured by our own scanner across the market. E2B postings stay open a median of 80 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.7%3 days
  3. 13.9%7 days
  4. 22.4%14 days
  5. 38.1%30 days
  6. 59.0%60 days
This job: posted 52 days ago

E2B median: 80 days open

The posting

ABOUT E2B

E2B is a fast-growing Series A startup with over $37M in funding and 9-figure revenue. We are building the Agent Cloud and power the infrastructure behind AI labs and some of the most widely used consumer and enterprise agents, including Manus, Genspark, Lindy, Groq, and Artificial Analysis. Our team includes original authors of Firecracker, the AWS microVM technology powering Lambda, along with alumni of Cognition, JetBrains, Zapier, and Wish.

ABOUT THE ROLE

Your job is to own billing at E2B — everything that touches how we charge customers, collect revenue, and capture the data behind it. The metering pipeline, the Stripe integration, invoicing, collections, and the billing surfaces developers see in the dashboard.

Your code will be responsible for collecting data metrics, creating and sending invoices and reconciliation of payments for our customers across the globe.

We have a billing system. Your job is to take it over end to end and redesign it. Engineering, finance, and customers all depend on the system and the data it produces, and you'll work across all three. When a customer asks why their invoice looks the way it does, you're the person who can answer. Responsibilities include:

- Owning the services behind billing end-to-end — usage metering, charge calculation, invoicing, payments, and the data models underneath them

- Owning the Stripe integration end-to-end: subscriptions, Billing Meters, and enterprise invoicing edge cases

- Building billing automation: failed-payment recovery, collections, proration and plan changes, credits, refunds, and disputes

- Working with engineers across Core, Platform, and Dashboard to get the data billing depends on, and defining the contracts for it

- Partnering with finance on reconciliation, revenue reporting, and audit-readiness

- Making architectural decisions around observability, testing, and security

WHAT WE'RE LOOKING FOR

- Understanding of metric collection, metered usage, Pay-as-you-go, billing cycles - being able to understand finance requirements and translate them into well tested code

- Backend engineer with 5+ years billing systems experience, with deep expertise in Go

- Strong API design — REST/RPC, contracts and versioning

- Solid with PostgreSQL: schema design, query optimization, migrations, and reasoning about data at scale

- Backend fundamentals: authentication/authorization, server-side performance, and building real-time data flows (WebSockets, SSE)

- Experienced with charging logic, collections, billing automation, and billing-related data flows

- Comfortable with complex invoicing, SKUs, usage-/contract-based billing, and third-party payment platforms

- Strong cross-functional communication skills, especially with finance

- Comfortable owning a system end-to-end with high autonomy

- Able to work through ambiguity and figure things out independently

WHAT IT’S LIKE TO WORK AT E2B

We’re a fast-growing startup with in-person (4 days on-site, 1 day WFH) offices in San Francisco and Prague, Czech Republic. We already generate 8-figure revenue and work directly with top-tier AI companies like Manus, Genspark, Lindy, Groq, Artificial Analysis and other exciting teams pushing the frontier of AI.

We offer healthcare, vision, and dental insurance, unlimited PTO, 401k, and a variety of perks for in-office employees.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against E2B's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on E2B's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    E2B's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.