AI Harness & Security Engineer (Backend/AI Agents)

Armis; United States; On-site; USD 197,000 - 230,000; Full time

Job summary

Armis is hiring a senior backend engineer to design secure AI infrastructure and control planes, building AI agents and microservices using Python on AWS. You will partner with researchers and senior engineers to deploy production-ready systems, develop APIs and CLI tools, and drive architecture standards in a startup-like environment.

The role emphasizes ownership, developer tooling, and observability, with opportunities to work across product, sales, and executive teams to shape our AI

Qualifications

• 5+ years of backend software engineering experience.
• Experience building AI Harnesses is required.
• Experience with Harness & AI Security is required.
• Excellent Python development experience.
• Experience building backend services and microservice architectures.
• Experience working with AWS cloud services.
• Experience designing APIs and distributed systems.
• Hands-on experience building AI applications, AI agents, or agentic workflows.
• Experience working with Agent SDKs.
• Familiarity with Model Context Protocol (MCP).
• Experience building developer tools, APIs, or CLI applications.
• Strong understanding of software architecture and production engineering.
• Comfortable working in startup environments with significant ownership.
• Ability to independently drive projects from concept through production.

Responsibilities

• Design and build secure AI infrastructure for production AI agents.
• Develop Agent Control Plane capabilities that manage, monitor, and secure agent execution.
• Build embedded controls and security mechanisms directly into AI agents.
• Develop reusable services, APIs, and developer tooling that support AI applications.
• Build and maintain integrations with modern Agent SDKs and Model Context Protocol (MCP).
• Design backend microservices using Python and AWS.
• Build observability into AI systems, including telemetry, monitoring, tracing, and operational visibility.
• Develop public-facing developer tools and command-line interfaces (CLI).
• Partner closely with AI researchers to rapidly transition prototypes into production-ready systems.
• Own projects from architecture through deployment.
• Help define engineering standards and reusable patterns across the AI platform.
• Collaborate with stakeholders across the board in our Product, Sales, and Executive teams. Along with collaborate with senior engineers while independently leading technical initiatives when appropriate

Skills

Backend software engineering

AI Harnesses

Harness & AI Security

Python

Backend services

AWS

APIs

Distributed systems

AI applications

Agent SDKs

Model Context Protocol (MCP)

Developer tools / CLI

Software architecture

Startup ownership

Independent delivery

Agent Control Plane

Embedded security in AI

AI observability

Security engineering

Infrastructure engineering

LLMs in production

Kubernetes

Cloud integration

AI governance

Job description

Armis is hiring a senior backend engineer to design secure AI infrastructure and control planes, building AI agents and microservices using Python on AWS. You will partner with researchers and senior engineers to deploy production-ready systems, develop APIs and CLI tools, and drive architecture standards in a startup-like environment.

The role emphasizes ownership, developer tooling, and observability, with opportunities to work across product, sales, and executive teams to shape our AI