Senior Backend Engineer (AI)

Backend Engineer, AI

Company

Rain

Conditions

21 hours agoSeniorSalary: 150K - 250KNew York, USA Hybrid Full Time Backend Jobs by Rain

Skills

Data Handling Retrieval Ai Agent Node.Js Evaluation Framework Prompt Engineering Data Pipeline Backend Llm Data Access Control Fintech Api Tool Calling Structured Output

About the Role

You will build and scale backend systems, APIs, and data pipelines that power production services. You will design and ship AI-powered features, agents, and automation, and create shared AI infrastructure such as tool interfaces, evaluation frameworks, and permission-aware data access. You will work embedded with the business to understand workflows and rapidly deliver customer-facing capabilities.

Requirements

• Experience with Node.js and other backend technologies
• 1–3+ years building production systems that use LLMs, tool calling, structured outputs, prompt architecture, and retrieval patterns
• This position is for folks with 3–8+ years of experience; compensation will be based on experience
• Builder mentality with experience shipping side projects or experiments
• Comfortable with ambiguity and able to take loosely defined problems, make decisions, and ship

Responsibilities

• Contribute to the technical and product roadmap
• Build and scale backend systems, APIs, and data pipelines
• Design and ship AI-powered features, agents, and automation
• Build shared AI infrastructure including composable tool interfaces, evaluation frameworks, and permission-aware data access
• Rapidly ship new capabilities to customers and internal teams
• Work embedded with the business to understand workflows

Benefits

• Unlimited time off (minimum 10 days required)
• Flexible working and remote work support
• Home office stipend
• Health dental and vision plans for US employees
• 100% company subsidized life insurance
• 401(k) with 4% company match
• Equity option plan
• Company-issued Rain card for product testing
• Health and wellness spending coverage
• Team and company summits and offsites

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