Senior Software Engineer II, Enterprise Auth Platform

Lilasciences; San Francisco (CA); On-site; USD 180,000 - 256,000; Full time

Benefits offered by this job

Medical, dental, vision benefits

Life and disability insurance

Flexible time off and holidays

Parental leave

Educational assistance

Commuter benefits

Company lunch program

Job summary

Lila Sciences seeks a Senior Software Engineer II, Enterprise Auth Platform to own critical backend systems across tenant isolation, auth, and developer APIs. You will work on multi-tenant architectures, ensure security and auditability, and ship customer- and developer-facing features with a focus on reliability.

You will collaborate with infra, data, apps, and science teams to deliver end-to-end solutions, including MCP integrations and public REST/SDK interfaces, while driving developer

Qualifications

• 7+ years of backend software engineering experience in APIs, backend services, or platform infrastructure.
• Strong expertise in API design, multi-tenancy, authentication/authorization, or backend services at scale.
• Proficiency in Python (FastAPI), Kubernetes, AWS, and databases (SQL or NoSQL).
• Focus on developer experience and building easy-to-use APIs with clear errors and backward compatibility.
• Able to ship working code regularly, debug production issues, and own systems end-to-end.

Responsibilities

• Own critical components of the enterprise auth platform and tenant lifecycle.
• Ship features regularly and maintain high-quality backend services at scale.
• Collaborate with infra, data, apps, and science teams across the organization.
• Design and evolve public APIs and SDKs for developers and agents.

Skills

API design & versioning

Multi-tenancy & auth

Python (FastAPI)

Backend services at scale

Developer experience focus

End-to-end ownership

Tools

Kubernetes

AWS

SQL/NoSQL databases

FastAPI

Job description

Your Impact at LILA

We're hiring a Senior Software Engineer II, Enterprise Auth Platform to own critical systems across two areas: the enterprise lifecycle (multi-tenancy, auth, auditability) and the developer ecosystem (public APIs, SDKs, MCPs, and bring-your-own integrations) that let customers and developers build on Lila. Our internal scientists across both physical and life sciences are first-class customers of this platform, so you'll build for them as directly as for external developers.

This is a high-autonomy role: you'll own outcomes, ship regularly, and operate with technical judgment about tradeoffs.

What You'll Be Building

• Multi-Tenancy & Authorization. Build secure tenant isolation, authentication, authorization, and audit across customer organizations. Implement the access boundaries and isolation guarantees that enterprise and regulated (e.g. GxP, FedRAMP) deployments require. Build resilient backend services in Python/FastAPI. Own schema design for multi-tenant data, tenant-aware query patterns, and operational correctness in a regulated environment.
• Tenant Self-Serve & Lifecycle. Build the services behind tenant provisioning, self-serve administration, and the customer onboarding lifecycle. Support billing, pricing, and metering surfaces for enterprise customers.
• Public & Agent-Facing APIs. Own and evolve Lila's public APIs (REST, streaming, async) designed for both human developers and autonomous agents as first-class consumers. Ship SDKs and define the tool/function interfaces agents call.
• MCP & Agent Integration. Build the integration paths that connect MCPs, agents, and data into the platform — including how customers bring their own MCPs, agents, and data, and how those integrations are scoped, isolated, and trusted within a tenant.

Qualifications:

• 7+ years of backend software engineering, with meaningful experience in APIs, backend services, or platform infrastructure.
• Strong expertise in one or more of: API design and versioning, multi-tenancy, authentication/authorization, or backend services at scale.
• Solid in Python (FastAPI), Kubernetes, AWS, databases (SQL or document).
• You care about developer experience — you know what makes APIs easy or painful. You write clear errors and think about backward compatibility.
• Ship working code regularly. Debug production issues. Own systems end-to-end.
• Work well across teams you'll have real overlap with infra, data, apps, and science teams. Our internal scientists, across both physical and life sciences, are first-class customers of the platform, so you'll build for them as directly as for external developers. Communicate tradeoffs clearly and make decisions under ambiguity.

What You'll Need to Succeed

• 7+ years of backend software engineering, with meaningful experience in APIs, backend services, or platform infrastructure.
• Strong expertise in one or more of: API design and versioning, multi-tenancy, authentication/authorization, or backend services at scale.
• Solid in Python (FastAPI), Kubernetes, AWS, databases (SQL or document).
• You care about developer experience — you know what makes APIs easy or painful. You write clear errors and think about backward compatibility.
• Ship working code regularly. Debug production issues. Own systems end-to-end.
• Work well across teams you'll have real overlap with infra, data, apps, and science teams. Our internal scientists, across both physical and life sciences, are first-class customers of the platform, so you'll build for them as directly as for external developers. Communicate tradeoffs clearly and make decisions under ambiguity.

Bonus Points For

• Built or maintained multi-tenant SaaS platforms with audit, compliance, or isolation requirements (SOC 2, HIPAA, GxP, FedRAMP).
• Shipped public developer platforms, APIs, or SDKs and understand what makes integrations sticky.
• Familiarity with MCP, OpenAPI, or OIDC/OAuth 2.0.
• Worked on tenant isolation patterns (row-level security, schema per tenant, search-path isolation).
• Experience with policy‑based authorization (OPA) or externalized authz.

Compensation

We offer competitive base compensation with bonus potential and generous early‑stage equity. Your final offer will reflect your background, expertise, and expected impact.

U.S. Benefits.

Full‑time U.S. employees receive a comprehensive benefits program including medical, dental, and vision coverage; employer‑paid life and disability insurance; flexible time off with generous company wide holidays; paid parental leave; an educational assistance program; commuter benefits, including bike share memberships for office based employees; and a company subsidized lunch program.

International Benefits.

Full‑time employees outside the U.S. receive a comprehensive benefits program tailored to their region. USD salary ranges apply only to U.S.-based positions; international salaries are set to local market.

Expected Base Salary Range

$180,000 — $256,000 USD

About LILA

Lila Sciences is building Scientific Superintelligence™ to solve humankind's greatest challenges. We believe science is the most inspiring frontier for AI. Rather than hard‑coding expert knowledge into tools, LILA builds systems that can learn for themselves.

LILA combines advanced AI models with proprietary AI Science Factory™ instruments into an operating system for science that executes the entire scientific method autonomously, accelerating discovery at unprecedented speed, scale, and impact across medicine, materials, and energy. Learn more at www.lila.ai.

Guided by our core values of truth, trust, curiosity, grit, and velocity, we move with startup speed while tackling problems of historic importance. If this sounds like an environment you'd love to work in, even if you don't meet every qualification listed above, we encourage you to apply.

We’re All In

Lila Sciences iscommitted to equal employment opportunityregardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status.

Information you provide during your application process will be handled in accordance with our Candidate Privacy Policy.

A Note to Agencies

Lila Sciences does not accept unsolicited resumes from any source other than candidates. The submission of unsolicited resumes by recruitment or staffing agencies to Lila Sciences or its employees is strictly prohibited unless contacted directly by Lila Science’s internal Talent Acquisition team. Any resume submitted by an agency in the absence of a signed agreement will automatically become the property of Lila Sciences, and Lila Sciences will not owe any referral or other fees with respect thereto.