Scalekit is hiring: Software Engineer in San Francisco

About Scalekit

Scalekit is building the authentication stack for AI applications. We started by solving enterprise-grade auth for B2B SaaS – features like SSO, SCIM provisioning, multi-tenant orgs, and admin portals. Now, as AI adoption accelerates, authentication has to work not just for human users but also for AI agents.

• Inbound auth for MCP servers using OAuth 2.1, PKCE, and dynamic client registration.
• Outbound actions for AI agents through token vaults and scoped access to third-party apps.

We’re backed by top investors and a strong network of engineering leaders. At Scalekit, we focus on solving hard authentication problems while obsessing over delivering great developer experiences.

Why This Role Matters

We’re looking for a Software Developer (1-3 years of experience) to join our focused, high-impact team in San Francisco. You’ll work directly with the founders and core engineers to:

• Build reference apps, integrations, and proofs-of-concept
• Create examples and quickstarts that make Scalekit simple and intuitive for other developers
• Bring real-world developer feedback into our product and docs.

This is a unique opportunity to learn fast, ship quickly, and directly shape how developers adopt authentication in AI-driven products.

What you’ll do

1. Build reference apps and POCs
   • Create small, runnable projects in Python, Node.js, and Next.js that demonstrate key auth flows (SSO, passwordless logins, agent auth, and MCP integration).
   • Publish quickstart repos, snippets, and scripts that other developers can copy and adapt.
2. Help with real integrations
   • Work alongside the team and customers during pilots to reproduce and fix issues.
   • Patch small utilities or examples that reduce friction, and document what you learned.
3. Feed learnings back into the product
   • Spot recurring issues and suggest SDK improvements or validation checks.
   • Share feedback with the core team on how onboarding and workflows could be smoother.
4. Engage with the developer ecosystem
   • Attend local developer events to hear what problems others face and bring insights back to the team
   • Participate in GitHub discussions when you can contribute code or fixes.

Challenges You’ll Help Solve

• Make it simple for developers to plug Scalekit auth into their SaaS and AI apps
• Create “aha!” moments – shorten the path from first test to production.
• Build reusable code and examples that other developers trust and love.

What we’re looking for

• Builder at heart: You explore new SDKs, APIs, and stacks, figure things out quickly, and enjoy experimenting
• Hands-on coder: Proficient in at least one of Python, Node.js, or Next.js, with the ability to learn from others as needed
• Empathy for developers: You care about the small details that make (or break) a great developer experience, from error messages to onboarding guides
• Self-starter: You take open-ended problems, build proofs-of-concept, and ship usable solutions
• Collaborative Style: You’re excited to explain your solutions, write clean GitHub repos, and contribute to the developer community
• Comfort with startup pace: adaptable, willing to wear multiple hats, and thrive in an environment where priorities can shift

Bonus if you have

• Exposure to authentication/identity protocols (OAuth, OIDC, SAML, SCIM)
• Experience with IdPs like Okta, Entra ID, or Google
• Familiarity with cloud platforms (GCP or AWS)
• Prior startup or open-source contributions.

Why you’ll love working here

• Work side-by-side with the founders, shipping production-ready code from day one
• Directly shape how authentication works for the next wave of AI and SaaS applications
• Join a team that values curiosity, speed, and craftsmanship and where your contributions have immediate impact
• Backed by top investors and advisors in AI and infrastructure.

Interested? Send us a note at founders@scalekit.com with links to repos, projects, or hacks you’ve built. We care about showing you can figure things out and ship code.