Senior API Support Engineer

OpenRouter, Inc; Oregon; Hybrid; USD 110,000 - 150,000; Full time

Job summary

OpenRouter, Inc is seeking a Scaled Support Specialist who blends deep technical troubleshooting with superb developer communication. You will be the frontline for engineers integrating with our API, diagnosing complex issues across providers, and turning frustrations into partnerships.

You’ll work across logs, curl/Postman workflows, and various SDKs to reproduce and resolve edge cases, with accountability for customer experience and rapid feedback to product teams.

Qualifications

• 4+ years in a technical support, developer support, solutions engineering, or similar role — API or developer tools product experience preferred.
• Exceptional troubleshooting instincts and strong API fluency.
• Proficiency in at least one scripting language (Python or TypeScript).
• Excellent written communication and ability to explain complex concepts clearly.
• Comfort with ambiguity and a passion for AI/LLMs.

Responsibilities

• Diagnose and resolve complex issues across OpenRouter's API with multiple LLM providers.
• Reproduce bugs in ambiguous environments using curl, Postman, and small test apps.
• Read logs, headers, and traces to determine root cause and classify as client-side, provider, or misconfiguration.
• Provide clear, reproducible steps, hypotheses, and verified fixes or workarounds.
• Respond to developer inquiries across channels with clarity and technical precision.
• Translate root causes into human-friendly explanations and set expectations for timelines.
• Stay current with rapidly evolving LLM ecosystem and OpenRouter routing logic, rate limits, and billing systems.
• Spot systemic issues and advocate for fixes that prevent future tickets and improve developer experience.

Skills

API fluency

Python

TypeScript

Troubleshooting

Written comms

Ambiguity tolerance

AI/LLM interest

Tools

curl

Postman

Job description

OpenRouter, Inc is seeking a Scaled Support Specialist who blends deep technical troubleshooting with superb developer communication. You will be the frontline for engineers integrating with our API, diagnosing complex issues across providers, and turning frustrations into partnerships.

You’ll work across logs, curl/Postman workflows, and various SDKs to reproduce and resolve edge cases, with accountability for customer experience and rapid feedback to product teams.