Note: The job is a remote job and is open to candidates in USA. Obsidian Security is a company focused on securing SaaS applications, and they are seeking a Staff Software Engineer to work on their Threat product team. The role involves owning features across the full stack, from browser extensions to backend services, while collaborating with security researchers to enhance threat detection capabilities.

Responsibilities

• 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

Skills

• 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

Benefits

• Competitive compensation with equity and 401k
• Comprehensive healthcare with dental and vision coverage
• Flexible paid time off and paid holiday time off
• 12 weeks of new parent or family leave
• Personal and professional development resources
• Equity awards
• May be eligible for sales commission or incentive compensation based on the role or function within the company

Company Overview

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