Software Engineer, Platform Experience

About the role

Siena is building a single AI‑driven agent that unifies the entire customer journey for consumer brands. As a Software Engineer, Platform Experience you will own the toughest production problems, work directly with customers to resolve them, and create automated solutions that prevent recurrence.

Key responsibilities

• Investigate and resolve critical production issues such as failing webhooks, incorrect agent parameters, and unreconciled reports.
• Communicate directly with customers, including live calls, to diagnose root causes and deliver fixes.
• Design and implement automation that eliminates repeat incidents and improves platform stability.
• Collaborate with product and engineering teams to feed insights back into the roadmap.
• Contribute to the evolution of Siena’s core stack and AI‑agent workflows.

Required profile

• Strong problem‑solving mindset; able to trace issues from vague symptoms to concrete causes.
• Enjoys direct customer interaction and sees it as a lever for impact.
• Passionate about building reusable automation and leveraging AI to increase efficiency.
• Comfortable reading and reasoning through code without relying on black‑box tools.

Required skills

• Node.js
• TypeScript
• React
• Express
• PostgreSQL
• JavaScript debugging in browsers
• SQL query writing
• AI agents, LLM workflow debugging, prompt engineering

What we offer

• Fully distributed global team with high autonomy.
• Opportunity to shape a fast‑growing SaaS platform.
• Career path toward Forward‑Deployed Engineer or deeper platform roles.