Senior Rails Platform Engineer — AI/API Leader

The Wrap; New York (NY); Hybrid; USD 251,000 - 278,000; Full time

Job summary

Gusto is seeking a Senior Staff Software Engineer on the Agent & Partner Experiences team. You will be a key technical leader, shaping API and AI-driven payroll platform experiences while hands-on coding in Ruby on Rails and guiding others to deliver high-quality software.

You will sit at the bridge between our API and AI world, partnering with developers and agents to scale our platform. Gusto has offices in Denver, San Francisco, and New York with hybrid work expectations.

Qualifications

• 12+ years of professional software development experience.
• Ruby and Rails expert with experience in large Rails apps.
• Designed and built platforms and public-facing APIs.
• Mentored others and raised the technical bar.
• Communicates requirements and constraints to business leaders.

Responsibilities

• Identify and solve high-impact problems across multiple domains.
• Design API contracts and agent-facing tools for partners and AI agents.
• Engage with developer-customers and internal partners to deliver payroll product.
• Ship clean, tested, high-performance code.
• Provide technical guidance and mentoring across the organization.
• Maintain reliability and observability best practices.
• Troubleshoot and resolve production issues.

Skills

12+ years

Ruby on Rails

Platform thinker

Bar raiser

Effective communicator

Tools

GraphQL

Job description

Gusto is seeking a Senior Staff Software Engineer on the Agent & Partner Experiences team. You will be a key technical leader, shaping API and AI-driven payroll platform experiences while hands-on coding in Ruby on Rails and guiding others to deliver high-quality software.

You will sit at the bridge between our API and AI world, partnering with developers and agents to scale our platform. Gusto has offices in Denver, San Francisco, and New York with hybrid work expectations.