# Senior Software Engineer

> Raydar · San Francisco, United States · Full-time · Posted 2026-10-26

**Salary:** USD 200,000–300,000

**Workplace:** on_site

## Description

About the company

Our client is a software company.

The role

Raydar is recruiting for this role on behalf of our client. Engineer the billing and payment layer of a software product, covering subscriptions, recurring and consumption charges, access rights and several payment processors. The role suits a senior engineer who can carry a critical area from design into production and keep refining it at pace.

What you'll do

\- Take full responsibility for how the business collects payment, covering plans, recurring billing, access rights, credit adjustments and one-time charges.

\- Architect a single payments layer that ties several processors and local payment options together, letting customers pay in their own currency while lowering processing fees.

\- Create consumption-based charging that tracks usage, deducts from prepaid balances and bills excess amounts, built either on a third-party platform or internally.

\- Build payment features that let customers of the product charge their own end users.

\- Improve the throughput and resilience of the charging stack as transaction counts climb, handling provider callbacks, retry logic and ledger matching.

\- Partner with leadership to design and run tests on prices and plan structure, then release changes rapidly to lift revenue.

## Requirements

What we're looking for

\- Roughly two to ten years of engineering work on payments or monetization teams in subscription software or consumer products.

\- Hands-on production work connecting two or more payment processors.

\- Experience building usage-based or credit-based billing alongside subscriptions and entitlements.

\- Ability to take a critical system from first design to full ownership in a quick-moving startup.

\- Proven record of releasing payments functionality to paying users and refining it afterward.

Bonus points

\- Experience building a unified multi-provider payments layer.

\- Experience with a usage-billing platform.

\- Experience supporting international payment methods and currencies.

\- Experience running pricing or packaging experiments.

\- One or more years at a fast-growing startup, with time at your own startup counting.

\- Experience with TypeScript, Postgres or React.

## Benefits

Compensation and benefits

\- Base salary: $200K to $300K

\- Equity

Location and work model

\- San Francisco, CA, United States

\- On-site, in-office

\- Full-time

## Apply

[Apply at Raydar](https://apply.workable.com/raydar/j/B63F476DDD/apply)

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