Toku

Senior Full-Stack Engineer (AI-Native)

Job Description

We are hiring a Senior Full-Stack Engineer who is deeply AI-native. This is not a traditional coding role. Our engineering workflow is agent-first, and we expect engineers to use AI as their primary interface for design, implementation, testing, refactoring, and delivery.

Toku builds mission-critical software across payroll, token administration, and financial operations. We ship fast, operate with high ownership, and expect excellent engineering judgment.

If agents have not significantly transformed the way you work, this role is not a fit.


How We Build
  • Daily use of Claude and Codex across the full SDLC.
  • Agent-first execution; we do not expect handwritten code as the default path.
  • No token budget constraints for engineering workflows.
  • Strong emphasis on throughput, correctness, and review quality with AI-assisted development.

    • What You’ll Do
  • Build and ship full-stack features across frontend and backend systems.
  • Own work end-to-end: product requirements, architecture, implementation, testing, rollout, and monitoring.
  • Use AI agents to accelerate delivery while improving reliability and maintainability.
  • Partner closely with product, design, and operations to deliver high-impact outcomes quickly.
  • Improve internal engineering workflows for AI-native development and team leverage.

    • What We’re Looking For
  • 5 to 7+ years of software engineering experience in production environments.
  • Strong full-stack skills (TypeScript/JavaScript, modern frontend frameworks, backend APIs, SQL/data modeling).
  • Clear track record of shipping customer-facing features and backend systems.
  • Heavy, practical, and proven daily use of AI coding agents.
  • Excellent prompt-to-production workflow: spec → agent loops → validation → deploy.
  • Strong testing discipline and ability to reason about failure modes.

    • Non-Negotiables
  • You are a rampant user of AI tools for engineering work.
  • You are comfortable in an agent-first environment where handwritten code is not the default.
  • You believe AI agents have fundamentally changed how high-performing engineers work.

    • Nice to Have
  • Experience in fintech, payroll, payments, or crypto-enabled systems.
  • Experience with Next.js, Node.js, Prisma, and typed API patterns.
  • Experience improving developer productivity systems and AI-enabled engineering standards.

    • Apply Now
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