Senior API Support Engineer for AI & LLMs

openrouter.ai; United States; Remote; USD 90,000 - 150,000; Full time

Job summary

OpenRouter is seeking a Scaled Support Specialist who thrives at the intersection of deep technical troubleshooting and clear developer communication. You’ll be the front line for engineers integrating with our API, diagnosing issues across multiple providers, and turning edge cases into reliable solutions.

This isn’t a scripted helpdesk role: you’ll work with highly capable engineers, often with incomplete information, and you’ll need to reason through problems, propose concrete steps, and keep

Qualifications

• 4+ years in technical support, developer support, or solutions engineering (API/dev tools).
• Excellent troubleshooting instincts and API fluency.
• Clear written communication and ability to work with ambiguity.

Responsibilities

• Diagnose and resolve complex technical issues across OpenRouter's API and multiple LLM providers.
• Reproduce bugs across SDKs, languages, and auth configurations using tools like curl and Postman.
• Read logs, headers, and traces to identify root cause and determine client-side vs provider issues; document fixes.
• Communicate with developers across channels with clarity, empathy, and technical precision.

Skills

Exceptional troubleshooting instincts

Strong API fluency

Excellent written communication

Tools

Python

TypeScript

curl

Postman

Job description

OpenRouter is seeking a Scaled Support Specialist who thrives at the intersection of deep technical troubleshooting and clear developer communication. You’ll be the front line for engineers integrating with our API, diagnosing issues across multiple providers, and turning edge cases into reliable solutions.

This isn’t a scripted helpdesk role: you’ll work with highly capable engineers, often with incomplete information, and you’ll need to reason through problems, propose concrete steps, and keep