Senior Full-Stack Engineer - Platform team

You'll join the Platform team building Taktile's IAM and permissions platform: the authorization backbone that powers enterprise-grade access control across the product. This is a genuinely full-stack role where you'll design and build permission models and access controls end-to-end, from React/TypeScript access-management and admin UIs down to Python (FastAPI) authorization services.

What you'll do

• Design, build, and operate core authorization primitives such as roles, policies, and fine-grained permission checks (RBAC/ReBAC), along with the authentication and SSO/OAuth/OIDC flows that sit on top of them.
• Guarantee strict multi-tenant isolation so every customer's data and decisions stay fully segregated.
• Keep fine-grained permission checks fast in the hot path of millions of automated decisions per day, where both latency and correctness are non-negotiable.
• Build audit and access-trail capabilities that give customers and auditors a verifiable record of who accessed what, when, and why.
• Design for regulated-industry constraints (financial services, SOC 2 / ISO 27001, data residency), where access control is a compliance requirement, not just a feature.
• Work across the full stack to build IAM, authorization, and permissions systems: front-end in React/TypeScript and backend in Python (FastAPI), on an AWS serverless architecture.
• Build and maintain these security-critical systems with care: review pull requests with depth and invest in strong test automation.

What you'll need

• Strong engineering fundamentals with a passion for simplicity and precision.
• Fluency in English, both written and spoken, is essential as we operate in a remote environment requiring clear and effective communication.
• 5+ years of professional full-stack experience, including strong proficiency with React and TypeScript.
• Professional experience building backend services in Python (FastAPI or equivalent), including REST APIs and databases.
• Experience integrating into AWS or similar cloud providers.
• A genuine interest in security and access control, with exposure to authentication and authorization concepts (RBAC, SSO, OAuth/OIDC, multi-tenant permissions).

Nice to have

• Deeper backend specialization (async patterns, performance tuning, data modeling).
• DynamoDB or Postgres, SQLAlchemy.
• Hands-on experience designing authorization systems at scale: fine-grained / ReBAC models, policy engines (OpenFGA or Zanzibar-style systems, OPA), or multi-tenant RBAC for enterprise SaaS.

What they offer

• Top-of-market equity and cash compensation package.
• Self-development budget for conferences, books, or classes.
• New Apple MacBook Pro and meaningful home office set-up.
• Flat hierarchy with direct communication to founding team members.
• Learning from experienced mentors and access to network of leading tech investors and advisors.