Software Engineer, Platform, Tinker
Builds platform systems for AI fine-tuning API including billing, metering, authorization (RBAC/OAuth), organizations/teams, data exports, and audit logging. Requires backend proficiency in Python/Rust and experience in billing, access control, or multi-tenant systems; bachelor's or equivalent.
What You’ll Do
- Design the authorization layer across all products: RBAC, API key scoping, organization hierarchies, and permission boundaries.
- Own billing infrastructure end to end, including usage metering and aggregation, plan management, payment processing, invoicing, and revenue recognition support.
- Build and evolve the organizations and teams model: seat management, SSO/SAML, workspace isolation, and invite flows.
- Implement data export and deletion pipelines that meet enterprise compliance and data residency requirements.
- Build audit logging so customers and internal teams have clear visibility into who did what, when.
Skills and Qualifications
Minimum qualifications:
- Bachelor’s degree or equivalent experience in computer science, engineering, or similar.
- Proficiency in at least one backend language (we use Python or Rust).
- Experience with at least one of: billing/payments infrastructure, identity and access control (RBAC/ABAC, OAuth, SAML), or multi-tenant platform systems.
- Thrive in a highly collaborative environment involving many, different cross-functional partners and subject matter experts.
- A bias for action with a mindset to take initiative to work across different stacks and different teams where you spot the opportunity to make sure something ships.
Preferred qualifications:
- 4+ years building backend systems in production.
- Experience building billing or metering systems at scale (Metronome pipelines, usage-based pricing, invoicing pipelines).
- Familiarity with enterprise-readiness patterns: SSO/SCIM provisioning, audit trails, data residency, custom contracts, role hierarchies.
- Strong opinions on building correct financial systems — idempotency, exactly-once semantics, reconciliation.
- Experience with event-driven architectures or stream processing for usage metering.
- Background in security engineering or a strong security mindset (least-privilege design, secure defaults, threat modeling).
- Prior work at an AI/ML company, developer tools company, or API-first platform.
Compensation
Depending on background, skills and experience, the expected annual salary range for this position is $350,000 - $475,000 USD.
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