Commission Chatbot Writer Jobs (NOW HIRING)

Obsidian helps companies figure out what's happening in their SaaS applications - who's accessing what, where data is going, and what looks suspicious.

You'll work across the full stack on the Threat product team: browser extension code that hooks into web applications, backend services processing millions of events, and data pipelines feeding our detection engine. One day you're in TypeScript debugging why a content script isn't capturing form submissions on some vendor's weird SPA. The next you're in Python fixing a Kafka consumer that's falling behind. Sometimes you're in Rust optimizing a hot path in the telemetry collector.

Right now, a big focus is shadow AI - enterprises want to know when employees are pasting sensitive data into ChatGPT, Claude, or whatever new LLM chatbot showed up this week. You'll build the systems that catch this.

• Own features from "we need to detect X" through production, across extension, backend, and pipeline code
• Write content scripts that interact with web pages and background scripts that coordinate everything
• Build backend services: event ingestion, enrichment, alerting
• Work with security researchers to turn threat intel into working detections
• Help the team get better through code review and design discussions

• 8+ years building software, ideally touching a few different areas (not just one stack forever)
• You actually understand how browsers work. DOM APIs, the event loop, how SPAs route, why CORS exists. Not just "I used React."
• You've built browser extensions before. You know the content script/background script split, message passing, manifest v3 limitations.
• Strong TypeScript. Comfortable in Python. Willing to write Rust (or already do).
• You've dealt with data at scale: event streaming, pipelines, high-throughput ingestion.
• Backend basics: APIs, Postgres, Elasticsearch, Kafka or similar.
• Can work without someone telling you what to do next.

• You've thought about AI security - prompt injection, data exfiltration, that kind of thing
• Background in detection engineering, SIEM, or security ops
• You've built or contributed to security tools