Senior Billing Engineer

United States Digital Space LLC; United States; Hybrid; USD 120,000 - 160,000; Full time

Job summary

United States Digital Space LLC is seeking a Senior Billing Systems Engineer to design and operate scalable financial infrastructure. You will lead projects from requirements to production, ensuring accurate billing as the company grows, and collaborate across Product, Finance, and Engineering teams.

The role focuses on building reliable microservices, handling high transaction volumes, and advancing our billing platform with modern technologies like Go, PostgreSQL, and Kubernetes.

Qualifications

• Five or more years of professional software engineering experience or equivalent practical experience.
• Experience building and operating distributed systems or backend services in production.
• Proficiency in Go or another modern programming language.
• Strong understanding of RESTful APIs, service security, and API standards such as OpenAPI, OAuth, or JWT.
• Working knowledge of SQL, data modeling, and relational databases such as PostgreSQL or MySQL.
• Experience designing secure, highly available microservices in Linux/Unix environments.
• Familiarity with event-driven architectures and asynchronous processing.
• Strong troubleshooting, communication, and project ownership skills.

Responsibilities

• Build Billing Systems: Design, develop, and operate transactional microservices for metering, subscriptions, invoicing, payments, and financial workflows.
• Own Projects End to End: Drive initiatives from requirements through implementation, testing, deployment, and operation.
• Ensure Accuracy and Reliability: Build fault-tolerant systems handling retries, failures, concurrency, and high volumes with financial correctness.
• Maintain Operational Excellence: Monitor production services, investigate billing issues, improve observability, address root causes of incidents.
• Shape Technical Direction: Participate in architecture reviews and improve engineering standards across the billing platform.
• Collaborate Cross-Functionally: Work with Product, Finance, Accounting, Support, and other teams to translate business requirements into solutions.

Skills

Go programming

Distributed systems

REST APIs

SQL databases

Linux/Unix

Troubleshooting

Project ownership

Tools

PostgreSQL

Redis

Kafka

Kubernetes

Docker

Temporal

Job description

About Us

At the company, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. the company protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by the company all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. the company was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.

At the company, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in.

About the Role

the company’s Billing Engineering team builds and operates the systems responsible for usage metering, aggregation, subscriptions, invoicing, payments, and revenue recognition. These systems power billions in revenue and support millions of customers across the company’s product portfolio.

We are rebuilding key parts of our billing platform to scale with products such as AI, Zero Trust, Workers, Bot Management, and DDoS Protection. As a Senior Billing Systems Engineer, you will design reliable financial infrastructure, lead projects from requirements through production, and help ensure billing remains accurate as the company grows.

Responsibilities

Build Billing Systems: Design, develop, and operate transactional microservices supporting metering, subscriptions, invoicing, payments, and financial workflows.

Own Projects End to End: Drive initiatives from requirements and technical design through implementation, testing, deployment, and ongoing operation.

Ensure Accuracy and Reliability: Build fault-tolerant systems that safely handle retries, failures, concurrency, and high transaction volumes while preserving financial correctness.

Maintain Operational Excellence: Monitor production services, investigate billing issues, improve observability, and address the underlying causes of recurring incidents.

Shape Technical Direction: Participate in architecture reviews, make pragmatic technical trade-offs, and help improve engineering standards across the billing platform.

Collaborate Cross-Functionally: Work with Product, Finance, Accounting, Support, and other engineering teams to turn complex business requirements into maintainable solutions.

Desirable Skills, Knowledge, and Experience

- Five or more years of professional software engineering experience, or equivalent practical experience.

- Experience building and operating distributed systems or backend services in production.

- Proficiency in Go or another modern programming language, with an interest in working extensively with Go.

- Strong understanding of RESTful APIs, service security, and API standards such as OpenAPI, OAuth, or JWT.

- Working knowledge of SQL, data modeling, and relational databases such as PostgreSQL or MySQL.

- Experience designing secure, highly available microservices in Linux or Unix environments.

- Familiarity with event-driven architectures and asynchronous processing.

- Strong troubleshooting, communication, and project ownership skills.

Bonus Points

- Experience with billing, payments, subscriptions, usage metering, invoicing, financial ledgers, or revenue recognition.

- Experience with technologies such as PostgreSQL, Redis, Kafka, Kubernetes, Docker, or Temporal.

- Familiarity with reconciliation, idempotency, auditability, and financial data integrity.

- Experience leading technically complex projects across multiple teams.

What Makes the company Special?

Project Galileo: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by the company’s enterprise customers--at no cost.

Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states.

1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service the company has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our privacy commitment and ensure that no user data is sold to advertisers or used to target consumers.

Sound like something you’d like to be a part of? We’d love to hear from you!

Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the the company Offices or the company Hubs. More details about this will be available at that stage of the interview process.

This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.

the company is proud to be an equal opportunity employer. We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness. All qualified applicants will be considered for employment without regard to