Senior Full-Stack Engineer - Platform team

Taktile empowers financial institutions to transform into truly AI-native organizations. We’re growing rapidly with enterprise customers across banks and insurance companies, and we’re looking for a Senior Full-Stack Engineer to join our Platform team. We are hiring a Full-Stack Engineer to join the team building Taktile's IAM and permissions platform: the authorization backbone that powers enterprise-grade access control across our product. Joining us, you'll design and build permission models and access controls end-to-end, from the React/TypeScript access-management and admin UIs down to the Python (FastAPI) authorization services. You'll take on the problems that make enterprise authorization genuinely hard: multi-tenant isolation, fine-grained permission checks in the hot path of millions of decisions a day, audit and access trails, and the constraints of regulated financial services.

Responsibilities

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; Leverage leading edge AI tools (e.g. Claude) on a daily basis to build industry-shaping AI-native capabilities

Requirements

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

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; Prior ops or on-call experience

Benefits

Work with colleagues that lift you up, challenge you, celebrate you and help you grow; Experience a truly flat hierarchy and communicate directly with founding team members; Learn from experienced mentors and achieve tremendous personal and professional growth; Receive a top-of-market equity and cash compensation package; Get access to a self-development budget you can use to e.g. attend conferences, buy books or take classes; Receive a new Apple MacBook Pro, as well as meaningful home office set-up