Senior Backend Engineer, AI Infrastructure

About CodeIntegrity CodeIntegrity builds security infrastructure for AI agents. As AI systems connect to critical tools, sensitive data, and real-world actions, we help organizations prevent prompt injection, unauthorized tool use, and data exfiltration with real-time detection and enforcement before attacks execute. The Role You’ll build the backend infrastructure that governs how AI systems connect to tools, services, and sensitive workflows in production. This is a senior backend engineering role focused on the control plane behind agent execution, including service orchestration, policy enforcement, access control, reliability, and observability. What You’ll Do Build core backend infrastructure. Develop the systems and APIs that sit in the path of agent-driven actions and service integrations. Design orchestration layers. Build services that coordinate tool access, execution flow, and policy decisions for production AI workflows. Own architecture for critical systems. Make technical decisions across service boundaries, data flow, reliability, and operational visibility. Scale production infrastructure. Improve latency, fault tolerance, and observability for systems that support security-sensitive workflows. Work close to real deployments. Partner with customers to understand how these systems behave in practice and where stronger controls are needed. Requirements 5+ years of software engineering experience building production systems. Strong backend engineering experience. Comfort building production systems in Go or a similar backend language. Backend infrastructure experience. Experience building service architectures and production infrastructure. Scaling and distributed systems experience. Comfort building reliable systems that handle scale, performance, and operational complexity. Security-sensitive systems experience. Familiarity with authentication, authorization, policy enforcement, or access control systems. Strong CS fundamentals. Data structures, algorithms, and system design. Infrastructure experience. Comfort with Docker, Kubernetes, cloud platforms, and production observability. Ownership and architecture judgment. Ability to independently drive ambiguous technical work from design through implementation. Nice to Have AI systems experience. Familiarity with LLM applications, tool-calling systems, protocol-driven integrations, or agent infrastructure. Interest in security. Experience with secure systems, access control, threat modeling, or application security is a strong plus. Developer platform experience. Experience building integration platforms, internal developer tools, or infrastructure control planes. Benefits Salary. $190,000 to $230,000. Health coverage. Medical, dental, and vision fully covered. Equipment. MacBook Pro, $500 stipend, and tools you need. On‑site collaboration. Work in person with the team in San Francisco. Why Join AI systems are becoming part of critical workflows, and the security risks are already real. You’ll work on important problems, help shape how this category is built, and have direct influence on both the product and the company. CodeIntegrity is an equal opportunity employer. #J-18808-Ljbffr Antler Ltd