Staff Backend Engineer, Financial Engineering

OpenAI

. Design and build systems for purchasing, payments, subscriptions, and billing across OpenAI products and global markets .

Posted 11/4/2026full-timeSan Francisco • California • United StatesLead💰 $266,000 - $445,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and building backend systems for payments, subscriptions, and billing, ensuring financial accuracy and performance while collaborating with cross-functional teams. Proficient in developing scalable financial systems and simplifying complex workflows for enhanced customer experience.

Highest-signal resume keywords

Backend DevelopmentPayments SystemsBilling SystemsFinancial WorkflowsAPI Development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend DevelopmentPayments SystemsBilling SystemsProduct Catalog ManagementUsage MeteringData Pipeline DevelopmentFinancial System DesignEntitlement ManagementTransaction SystemsCompliance Support

Soft Skills

CollaborationProblem-SolvingCustomer Focus

Industry Keywords

Financial AccuracySubscription ManagementProduct PackagingRevenue ManagementCustomer Purchases

About the role

Key responsibilities & impact

Design and build systems for purchasing, payments, subscriptions, and billing across OpenAI products and global markets
Build product catalogs, SKUs, and bundles for new offerings and product packaging
Develop workspace and entitlement systems connecting purchases and subscriptions to product access
Ensure charges and product access remain correct when requests are retried, updates arrive late, or services fail
Build metering systems, data pipelines, and APIs converting usage into accurate bills, spending information, and traceable records
Create reusable foundations for new offerings, pricing, and payment options
Simplify complex financial workflows for customers and internal teams using feedback and experiments
Scale and evolve live systems while protecting customer access, financial accuracy, performance, and security
Own problems from design through launch and operation
Collaborate with product, design, finance, and engineering teams on technical decisions

Requirements

What you’ll need

Strong backend experience
Experience in payments, billing, or financial systems is a strong plus, but not required
Experience with payments, subscriptions, pricing, billing, or systems managing customer purchases and revenue is nice to have
Experience with product catalogs, packaging and bundles, workspace management, entitlements, or usage metering is nice to have
Experience building financial or transaction systems at scale, checking records across systems, or supporting compliance and audits is nice to have
Ability to work from the US office three days per week
Authorization to work in the country where the job is located

Benefits

Comp & perks

Equity
Performance-related bonus(es) for eligible employees
Medical, dental, and vision insurance for you and your family
Employer contributions to Health Savings Accounts
Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
401(k) retirement plan with employer match
Paid parental leave: up to 24 weeks for birth parents and 20 weeks for non-birthing parents
Paid medical and caregiver leave: up to 8 weeks
Flexible PTO for exempt employees
Up to 15 days annual PTO for non-exempt employees
13+ paid company holidays
Multiple paid coordinated company office closures throughout the year
Paid sick or safe time
Mental health and wellness support
Employer-paid basic life and disability coverage
Annual learning and development stipend
Daily meals in offices
Meal delivery credits as eligible
Relocation support for eligible employees
Charitable donation matching may be provided
Wellness stipends may be provided