Sr Backend Engineer, Billing
About The Position
Software powers the world, and LaunchDarkly empowers teams to deliver and control it safely. As a Senior Backend Engineer on the Billing team, you will own the systems that turn every plan, price, entitlement, and usage limit into revenue — checkout, subscription and entitlement APIs, usage metering, and the integrations to our billing, CRM, and finance systems. When billing is wrong, customers get the wrong product and we invoice the wrong amount. Correctness here is a commitment to our customers, not a nice-to-have. You and your team will drive the modernization of our billing platform. Technologies include Go, TypeScript, Postgres, AWS, and Terraform. Exact tool match matters far less than deep backend judgment and a track record of safely changing systems that are not allowed to be wrong.
Requirements
- 6+ years of professional software-engineering experience, with significant work on complex backend applications.
- Experience decomposing a monolith
- A track record on systems where correctness is non-negotiable, and the habits that come with it: idempotency, reconciliation, reversible migrations, and safe cutovers.
- Proficiency in at least one backend language (Go, Rust, Python, etc.) and familiarity with cloud infrastructure (AWS or equivalent), plus strong production ownership including on-call.
Nice To Haves
- Billing, payments, or metering systems, or usage-based pricing.
- Modeling entitlements, quotas, or multi-tenant limits.
Responsibilities
- Design and build the systems that define our plans, pricing, entitlements, and limits, and expose them through our API.
- Decompose billing from our monolith into services that are correct, testable, and independently deployable.
- Own correctness end to end — usage metering, reconciliation, and the invoices and usage data customers see.
- Operate what you build: SLOs, alerting, on-call, and fixing root causes rather than repeating mitigations.
Benefits
- Restricted Stock Units (RSUs)
- health, vision, and dental insurance
- mental health benefits
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
