Senior Staff Engineer - Tax Platform Engineering
Core
Designing, building, and testing the platform that supports tax compliance for millions of people, including scaling Ruby/Rails and TypeScript/React applications and integrating agentic AI for tax concepts.
Role type
Senior Staff Engineer (Tax Platform Engineering)
Builds
Core platform capabilities for payroll tax compliance, extensibility, scalability, and AI-driven tax interactions.
Domain
Fintech / Payroll / Tax Compliance
Deliverable
production ML models | product features | infrastructure
Required skills
Distributed systems design, large-scale production code architecture, legacy system refactoring, technical strategy & roadmap ownership, incident response & reliability engineering, team mentorship, complex problem simplification, regulated domain experience.
Preferred skills
Payroll/Taxes/Compliance domain expertise, Ruby on Rails, TypeScript, React, AI/LLM tooling fluency.
Technologies
Ruby, Rails, TypeScript, React, LLMs, Agents
Responsibilities
Design, build, and test the platform supporting tax compliance for millions; Help scale one of the largest Ruby/Rails and TypeScript/React applications; Collaborate on complex problems with cross-functional teams; Build guardrails enabling safe agentic AI interaction with tax concepts; Own and drive technical strategy and roadmap; Identify and prioritize long-term investments in foundational systems; Lead improvements to incident response processes; Mentor and develop engineers.
Seniority
Senior Staff, hands-on IC with strategic influence and mentorship
