Siena AI

Software Engineer, Platform Experience

Siena AI
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3 months ago
Buenos Aires, Argentina +3 moreSenior

Responsibilities

  • Own difficult customer production problems across APIs, integrations, customer-side JavaScript, agent behavior, and data.
  • Work directly with customers, including joining calls to diagnose and resolve issues quickly.
  • Debug prompts, knowledge bases, configurations, and models in AI-agent workflows under real traffic.
  • Build automation, tools, and runbooks that prevent recurring issues and improve team self-service.
  • Provide structured, metrics-backed feedback to Product and surface recurring patterns for product improvements.
  • Create clean reproductions and escalate genuine product bugs, infrastructure issues, and outages.
  • Document solutions and raise the broader team’s ability to resolve similar problems.

Requirements

  • Experience solving ambiguous technical problems end to end using customer reports, logs, and code.
  • Comfort communicating directly with customers and resolving issues collaboratively.
  • Fluency with AI agents, prompts, LLM workflows, knowledge bases, intent classification, and retrieval.
  • Working familiarity with Node.js, TypeScript, React, Express, JavaScript, and backend services, or the ability to ramp quickly.
  • Ability to write diagnostic SQL against PostgreSQL and navigate customer-side browser code.
  • Fluency with AI coding tools such as Claude Code or equivalent.
  • Ability to identify automation opportunities, create internal tools, and drive fixes without an established process.
  • Preferred experience with Grafana, Honeycomb, Sentry, or internal tooling that converts manual work into systems.
  • Ecommerce or direct-to-consumer experience is a plus but is not required.

Benefits

  • Fully distributed, global, async-first work environment.
  • Great salary plus equity or stock grants.
  • Learning budget.
  • Premium ChatGPT, Claude, Perplexity Pro, Cursor, and Lovable accounts for employees.
  • Quarterly budget for additional AI tools.
  • Autonomy, substantial ownership, and a path toward forward-deployed or platform engineering work.
Siena AI

About Siena AI

51-200 employees
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