Staff Engineer, MCP Infrastructure + Security

Ultra Security; United States; Remote; USD 170,000 - 230,000; Full time

Benefits offered by this job

Remote work across Americas and EMEA

Job summary

Ultra Security is seeking a staff-level security-focused software leader to design and ship security features across frontend, backend, and platform services. You will connect distributed systems with runtime security, enforce policies, and improve auditability throughout the product lifecycle.

You will own modules from scoping to deployment, work with applied AI concerns, tool calling, and anomaly pipelines while balancing speed and enterprise security in a high-velocity startup environment.

Qualifications

• 5+ years building and shipping production software.
• Staff-level ownership or equivalent leadership role.
• Experience with backend, infrastructure, or data-intensive systems.
• Security product experience: authorization, audit logging, or runtime enforcement.

Responsibilities

• Design and ship product features across frontend, backend, APIs, data models, and services.
• Take new modules from scoping and architecture through implementation, launch, and refinement.
• Build and evolve runtime enforcement, guardrails, audit trails, and visibility for systems using the MCP.
• Partner across infrastructure and applied AI work, including tool calling, evaluations, and anomaly pipelines where they affect security or compliance.
• Translate customer feedback into product improvements, balancing speed with enterprise security needs.
• Use AI-assisted development tools while maintaining correctness, and contribute to evaluation and reliability practices.

Skills

Backend development

Distributed systems

Security product experience

MCP integration

Startup environment

Job description

Role overview

Build security infrastructure and product capabilities for AI systems that use tools and act autonomously. This staff-level role connects distributed systems and runtime security with applied AI concerns, helping enforce policies, improve auditability, and support safe product development. The work spans user-facing application flows, backend services, and platform components, with broad ownership from initial design through iteration.

Responsibilities

• Design and ship product features across frontend, backend, APIs, data models, and services.
• Take new modules from scoping and architecture through implementation, launch, and refinement.
• Build and evolve runtime enforcement, guardrails, audit trails, and visibility for systems using the Model Context Protocol (MCP).
• Partner across infrastructure and applied AI work, including tool calling, evaluations, and anomaly pipelines where they affect security or compliance.
• Translate customer feedback into product improvements, balancing speed with enterprise security needs.
• Use AI-assisted development tools while maintaining correctness, and contribute to evaluation and reliability practices.

Requirements

• At least 5 years building and shipping production software.
• Staff, principal, founding-level, or equivalent ownership and scope.
• Strong backend, infrastructure, or systems experience, including distributed or data-intensive design.
• Security product experience in areas such as authorization, access control, audit logging, compliance, or runtime enforcement.
• Experience building or integrating MCP or similar context and tool-bridge systems, with the ability to contribute to evaluation and reliability work.
• Experience in a startup or other high-velocity environment.

Nice to have

• Combined backend development and infrastructure ownership, early-stage founding experience, or work on API-based and plugin-style integrations.

Benefits and work setup

• Remote across the Americas and EMEA, with quarterly team offsites.