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Software Engineer, Platform Experience

Siena AI· Engineering
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RemoteFull-timePosted 4mo ago

About the role

Software Engineer focusing on platform experience at Siena, tackling hard production problems end to end, debugging AI agent prompts and reliability, and building automation to prevent recurrence. Remote-friendly across multiple regions with full-time employment in a distributed engineering team.

Responsibilities

  • Own hard problems end to end: trace, reproduce, fix, or hand engineering a clean reproduction. Get on the call when that's the fastest path
  • Debug the agents and the prompts. Diagnose whether a misfire is prompt, knowledge base, config, or model, then fix it so it holds under real traffic
  • Build so it doesn't happen twice. For every fix, ship the runbook or tool that stops it recurring
  • Close the loop to Product. Surface patterns, not one-offs, backed by metrics
  • Raise the team's floor. Lift what the whole team can resolve, not just what you can
  • Know where your scope ends. Escalate genuine product bugs and outages with a clean reproduction, not a shrug
  • Within 90 days, name the top recurring failure patterns and attack them at the root, not just patch symptoms

Qualifications

  • You solve problems end to end. Given a customer, some logs, and a vague symptom, you find the break and can tell a customer-side cause from a product bug
  • You're fluent with AI agents and prompts. You've built or debugged LLM workflows and know how they break: prompts, knowledge bases, retrieval, the gap between test and live
  • You're excited to build automation, not just fix what's in front of you. You think in leverage. This is the signal that matters most
  • You like talking to customers. You'll get on a call and resolve the real problem live, not just the reported one
  • Comfortable in our core stack (Node.js, TypeScript, React, Express) or close enough to ramp fast
  • Fluent with AI coding tools (Claude Code or equivalent) to script, clean data, or navigate a new codebase fast
  • You own problems nobody assigned you, and you make the people around you better through docs and walkthroughs

Skills

Required:End-to-end troubleshootingAI agent and prompt debuggingAutomation and tooling
Nice to have:Customer collaboration

Benefits

  • Great salary plus equity or stock grants
  • Learning budget
  • AI-fluency by default with premium tools and workflows
Last updated Oct 22, 2026. Interested? Apply on the company site.

About Siena AI

Empathic AI Agents for commerce

Experience AI agents that combine empathy with automation for commerce. Provide personalized shopper support. Schedule a demo today!

AICustomer SupportE-commerceAutomationEmpathy
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