AI Foundations Engineer - Build Tooling for Rails Apps

SimplePractice; Santa Monica (CA); On-site; USD 208,000 - 260,000; Full time

Benefits offered by this job

Medical, dental, vision, life & di

401(k) plan with company match

Flexible Time Off (FTO) & wellbeing

Mental health resources

Paid parental leave & Backup Care

Tuition reimbursement

Employee Resource Groups (ERGs)

Job summary

SimplePractice, a leading health-tech company, seeks an AI Developer Foundations engineer to shape how AI is used inside engineering, product and design.

You will own context layers, write conventions, and help define gates for AI-generated artifacts, collaborating with PMs, designers and engineers in a Rails-based stack. This role reports to the VP of Technology in Santa Monica, with opportunities to work with teams in North America and beyond.

Qualifications

• 7+ years building production software.
• Experience with Rails in large codebases.
• Experience shipping LLM-backed systems.

Responsibilities

• Own the context layer agents read: rules files, docs conventions, grounding data, with CI and named owners keeping it current
• Publish the standards for how we prompt coding agents, how we supply context, and what a spec needs to contain before it's worth handing to an agent
• Define the review gates any AI-generated artifact clears before a human spends time on it, and get what reviewers catch flowing back into the conventions
• Take the prototypes running today and turn the ones that hold up into supported workflows that run for someone other than their author
• Evaluate harnesses, models and vendors against criteria and eval sets
• Work the product-to-engineering handoff with PMs, designers and EMs
• Teach. Documentation, worked examples, office hours, and time sitting with a squad while they work with the tools we build
• Help us draw the boundaries for where an agent runs unattended, where a human signs off, and where we don't use one at all

Skills

Rails experience

AI/LLM integration

Problem-solving

Communication skills

Cross-functional collaboration

Education

BS/MS in Engineering/CS

Tools

Ruby on Rails

AWS

Kubernetes

Docker

Aurora MySQL

Redis

Job description

SimplePractice, a leading health-tech company, seeks an AI Developer Foundations engineer to shape how AI is used inside engineering, product and design.

You will own context layers, write conventions, and help define gates for AI-generated artifacts, collaborating with PMs, designers and engineers in a Rails-based stack. This role reports to the VP of Technology in Santa Monica, with opportunities to work with teams in North America and beyond.