Staff Full-Stack Engineer — AI-Driven PEO Benefits

United States Digital Space LLC; Denver (NY); Hybrid; USD 163,000 - 204,000; Full time

Job summary

United States Digital Space LLC is seeking a Staff Software Engineer to join the PEO Benefits team, shaping the master health plan and scalable systems that unlock lower costs for small businesses. You will own features from design through launch, writing frontend and backend code and guiding architectural decisions.

This role offers rare greenfield work, opportunities to influence product direction, and collaboration with product, data, design, and platform teams.

Qualifications

• 8+ years of software development experience.
• Experience with PEO or large-scale benefits platforms is a plus.
• Experience mentoring engineers and leading cross-functional projects.

Responsibilities

• Design, build, and test the PEO Benefits experience with flows, carrier integrations, MCP tools, and automation.
• Mentor engineers to solve complex problems at scale.
• Scale a large Ruby/Rails and Javascript/React application.
• Collaborate with Product, Data, Design, and Platform Engineering to prototype, iterate, and launch daily.
• Build products customers love.

Skills

Software development

Mentoring engineers

AI tools experience

Ruby on Rails

Tools

Ruby on Rails

React

Job description

United States Digital Space LLC is seeking a Staff Software Engineer to join the PEO Benefits team, shaping the master health plan and scalable systems that unlock lower costs for small businesses. You will own features from design through launch, writing frontend and backend code and guiding architectural decisions.

This role offers rare greenfield work, opportunities to influence product direction, and collaboration with product, data, design, and platform teams.