Platform Engineer, APIs and Security

Adaption is hiring a Platform Engineer, APIs and Security for a remote role open to applicants in United States. Level rates it ; you can apply on Adaption.

Level's read on this job

Level rates this role Builds AI ●●●●: the job is building AI systems.
This is listed as a remote role.
The posting mentions Python, Saml and Oidc among its tools and skills.
Level classes it as a senior role.
Adaption has 6 other open roles on Level.

AI in this role

Build the multi-tenant platform, authentication, metering, and public APIs for an AI inference infrastructure.

pythonsamloidc

backendinfrastructureplatform-engineeringmulti-tenant-apissecuritysso

The role

You'll build the multi-tenant platform that turns our inference infrastructure into a product enterprises and sovereign customers can trust.

You'll own the systems between customers and our inference stack: authentication, tenant isolation, quotas, metering, entitlements, and the public API. Security and auditability are core product requirements, not layers added later.

Responsibilities

Build the multi-tenant control plane, including credentials, quotas, rate limits, and tenant isolation.
Own our public inference APIs, including streaming, versioning, compatibility, and migrations.
Implement accurate usage metering, credit reservation, and entitlement enforcement.
Build enterprise capabilities such as SSO, access controls, audit logs, and data residency.
Test and continuously strengthen the tenant boundary.

Qualifications

5+ years in backend, infrastructure, or platform engineering, including ownership of a multi-tenant API or control plane.
Deep knowledge of authentication, credential management, rate limiting, quotas, and tenant isolation.
Strong Python skills and sound API design judgment, ideally with high-throughput or streaming APIs.
Experience with metering, billing, credits, or entitlements, including idempotency, reconciliation, and audit trails.
Experience with enterprise or regulated environments, such as SSO, SAML/OIDC, SOC 2, data residency, or sovereign deployments.

Above all, we're looking for great teammates who make work feel lighter and aren't afraid to go out on a limb with bold ideas. You don't need to be perfect, but you do need to be adaptable. We encourage you to apply, even if you don't check every box.

About us

Most AI is frozen in place - it doesn't adapt to the world. We think that's backwards. Our mandate is to build efficient intelligence that evolves in real-time. Our vision is AI systems that are flexible, personalized, and accessible to everyone. We believe efficiency is what makes this possible - it's how we expand access and ensure innovation benefits the many, not the few. We believe in talent density: bringing together the best and most driven individuals to push the boundaries of continual adaptation. We're looking for builders and creative thinkers ready to shape the next era of intelligence.

Benefits

Flexible work: In-person collaboration in the Bay Area, a distributed global-first team, and team offsites.
Adaption Passport: Annual travel stipend to explore a country you've never visited. We're building intelligence that evolves alongside you, so we encourage you to keep expanding your horizons.
Lunch Stipend: Weekly meal allowance for take-out or grocery delivery.
Well-Being: Comprehensive medical benefits and generous paid time off.

How we rate this

Platform Engineer, APIs and Security at Adaption rates 85 out of 100 for how much of the daily work is AI. That makes it Builds AI (AI Level 4 of 4). The level is about AI in the job, not seniority.

Classification

Builds AI. The job is building AI systems.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Key facts

Platform Engineer, APIs and Security is an open job at Adaption.
Level rates this role AI Level 4 of 4: Builds AI.
The role is based in San Francisco and is marked remote.
The job was posted on August 21, 2026.
Seniority: senior.
Applications are handled by Adaption. Apply on Adaption

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

BackendInfrastructurePlatform EngineeringMulti Tenant APIsSecuritySsoPythonSaml

Questions you could be asked

Tell me about a project where backend was part of your work. What did you do?
Tell me about a project where infrastructure was part of your work. What did you do?
Tell me about a project where platform engineering was part of your work. What did you do?
Tell me about a project where multi tenant apis was part of your work. What did you do?
Tell me about a project where security was part of your work. What did you do?

Adapt your resume

List these exact terms on your resume: Backend, Infrastructure, Platform Engineering, Multi Tenant APIs, and Security. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
Lead with what you built, trained or shipped. This role is judged on the AI system itself, not the tools around it.

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