Note: The job is a remote job and is open to candidates in USA. Colossus Technologies Group is partnering with a fast-growing, early-stage cybersecurity company building the security layer for enterprise AI agents, MCP servers, skills, and plugins. The Staff Security Engineer will build production security products and detection capabilities for AI and agentic infrastructure, spanning threat research, application and API security, software supply chain security, and AI/LLM threats.
Responsibilities
- Build security products for AI agents, MCP servers, skills, and emerging agentic infrastructure
- Develop scanning and detection capabilities, including parsers, rule engines, analysis pipelines, and automated security checks
- Identify and detect risky or unauthorized AI/agent activity across enterprise environments
- Work across application security, endpoint detection, API security, software supply chain, and AI/LLM threats
- Design security capabilities from initial threat research through production implementation
- Help define how enterprises secure a rapidly evolving AI attack surface
Skills
- 8+ years of software/security engineering experience
- Strong software engineering background with hands-on Python
- Experience as a security practitioner in areas such as Product Security, Application Security, offensive security, detection engineering, or security research
- Demonstrated experience building security tooling or products—not simply implementing or operating third-party tools
- Experience building scanners, detection systems, parsers, rule engines, security automation, or analysis pipelines
- Strong understanding of modern application and API security
- Ability to independently take ambiguous security problems from research through production
- Remote within US time zones
- AI/LLM security
- Agentic systems or agent orchestration
- MCP security
- Prompt injection and AI red teaming
- Endpoint/asset discovery
- SAST/DAST/SCA
- Software supply-chain security
- EDR/XDR or detection engineering
- Previous experience building commercial security products
Benefits
- Meaningful early-stage equity
- Remote within US time zones
Company Overview