Senior Software Engineer (AI Infrastructure)

Join Handshake, an AI-first company, as a Senior Software Engineer on the Agentic Infrastructure team. In this role, you will architect and build the foundational systems that enable AI agents to operate autonomously at scale. You will have the opportunity to define how an AI-first company builds for the agentic era, working at the intersection of infrastructure, AI, and direct product impact.

• Architect and build the core agent orchestration layer, including tool use, memory, and multi-step reasoning systems.
• Design evaluation, observability, and reliability frameworks that ensure agent behavior is safe, auditable, and production-ready at scale.
• Establish engineering standards for agentic development across Handshake's platform teams, enabling every engineer to build with AI.
• Strong communication skills & ability to drive alignment across engineering & cross-functional partners
• Experience with cloud infrastructure (AWS, GCP, or Azure) & infrastructure-as-code tools like Terraform
• 4-7 years of backend engineering experience, with strong proficiency in NodeJS, Typescript, &/or Python
• Experience with Node, JavaScript, CICD, Docker
• A track record of shipping production systems with high reliability, low latency, & strong observability
• Experience designing & operating distributed systems at significant scale for developer experience
• Hands-on experience building with LLM orchestration frameworks (LangChain, LlamaIndex, or similar)
• Deep understanding of agent architectures: tool use, multi-step reasoning, memory management, & evaluation
• Open-source contributions to LLM or agent frameworks
• Prior experience at an AI-native company or on a dedicated AI platform team