Platform Engineer: AI-Driven Automation & Customer Impact

Siena; United States; Remote; USD 140,000 - 180,000; Full time

Job summary

Siena is the Agent of Record for consumer brands, providing a single shared intelligence layer. We are a fully distributed team shipping impactful customer-journey automation and AI-powered agents in production.

You will own hard production problems end to end, working directly with customers to diagnose root causes and build automation so issues never reoccur. This role blends product engineering with hands-on customer collaboration.

Qualifications

• Ability to diagnose complex production issues end-to-end.
• Willingness to talk with customers to uncover root causes.
• Experience building automation to prevent recurring problems.
• Experience with AI agent workflows and prompts.
• Proficiency in Node.js, TypeScript, React, Express or close kin.
• Familiarity with AI coding tools (e.g., Claude Code).
• Ability to write clear runbooks and documentation.

Responsibilities

• Own hard problems end to end across APIs, integrations, and customer-side code.
• Diagnose whether a prompt, knowledge base, config, or model causes a misfire and fix it.
• Build robust fixes with runbooks to prevent recurrence.
• Bridge customer feedback to Product with measurable signals.
• Raise the team's baseline by sharing knowledge and tooling.
• Escalate genuine bugs with a clean reproduction when needed.

Skills

Problem solving

Customer communication

Automation

Prompt engineering

Node.js/TS

AI tooling

Documentation

Tools

PostgreSQL

Grafana

Honeycomb

Sentry

Job description

Siena is the Agent of Record for consumer brands, providing a single shared intelligence layer. We are a fully distributed team shipping impactful customer-journey automation and AI-powered agents in production.

You will own hard production problems end to end, working directly with customers to diagnose root causes and build automation so issues never reoccur. This role blends product engineering with hands-on customer collaboration.