Senior AI Backend Engineer – On-site + Equity

David Joseph & Company; San Francisco (CA); On-site; USD 180,000 - 280,000; Full time

Benefits offered by this job

Equity

On-site

Job summary

David Joseph & Company seeks a Senior Software Engineer to own AI and agentic backend and infrastructure, reporting to the founders. The work is greenfield: architect core systems from scratch and own security-critical pieces including SOC 2 controls, encryption and key management, BYOK, and the infrastructure that AI agents run on.

There is meaningful cloud infrastructure and DevOps work alongside the backend build.

Qualifications

• 5+ years building and shipping production backend systems.
• Track record shipping production systems in a startup or other high-ownership environment.
• Time spent at a small startup as a founder, founding engineer, or early hire.
• Experience designing or implementing security-sensitive systems such as encryption, key management, and authentication.
• Hands-on experience building or deploying AI/ML or LLM-powered agents in production.
• Strong, production-grade Python for ML and agentic infrastructure.
• Cloud infrastructure experience with AWS or Azure, including DevOps.
• Production experience with JavaScript or TypeScript.
• Ability to build agentic systems end to end and reason about agent orchestration and MCP at a systems-design level.
• High agency: you self-direct, identify problems, and solve them independently.
• Comfort translating ambiguous enterprise security requirements into concrete systems.
• Willing to work on-site 5 days per week in New York or San Francisco.

Responsibilities

• Architect and build core features from scratch with a focus on reliability, scalability, and security.
• Own security requirements: SOC 2 controls, encryption and key management, access controls, and customer BYOK.
• Design and secure the infrastructure that AI agents run on, and build and deploy AI-powered agents in Python.
• Build robust agent workflows that integrate LLMs, APIs, databases, business systems, and external tools.
• Stand up and scale cloud infrastructure (AWS or Azure), including a meaningful DevOps component.
• Establish engineering best practices, tooling, and culture as an early member of a small, high-impact team.

Skills

Python

AWS

Azure

JavaScript/TypeScript

DevOps

Security engineering

AI/ML systems

Job description

David Joseph & Company seeks a Senior Software Engineer to own AI and agentic backend and infrastructure, reporting to the founders. The work is greenfield: architect core systems from scratch and own security-critical pieces including SOC 2 controls, encryption and key management, BYOK, and the infrastructure that AI agents run on.

There is meaningful cloud infrastructure and DevOps work alongside the backend build.