Backend Engineer — AI-Driven Fintech Platform

raincards.xyz; New York (NY); Hybrid; USD 110,000 - 150,000; Full time

Benefits offered by this job

Unlimited time off

Flexible working

Comprehensive health, dental, and vision plans

401(k) with 4% company match

Equity option plan

Rain Cards for product testing

Health and wellness spending options

Team summits both domestic and international

Job summary

A leading fintech company based in New York is seeking an Engineer to contribute to the AI team. You will be responsible for building backend systems and designing AI features for a novel payments platform. Ideal candidates will have experience with Node.js and production systems involving LLMs. The role offers unlimited time off, comprehensive benefits, and a flexible working environment to foster creativity and productivity. Join a hypergrowth startup that is shaping the future of financial technology.

Responsibilities

• Be a critical part of the technical and product roadmap.
• Build and scale the backend systems, APIs, and data pipelines that power Rain.
• Design and ship AI-powered features, agents, and automation into our core platform.
• Build shared AI infrastructure including composable tool interfaces and eval frameworks.
• Rapidly ship new capabilities to our customers and internal teams.
• Work embedded with the business to understand workflows firsthand.

Skills

Node.js

Backend technologies

Production systems using LLMs

Tool calling

Prompt architecture

Retrieval patterns

Comfortable with ambiguity

Builder mentality

Job description

A leading fintech company based in New York is seeking an Engineer to contribute to the AI team. You will be responsible for building backend systems and designing AI features for a novel payments platform. Ideal candidates will have experience with Node.js and production systems involving LLMs. The role offers unlimited time off, comprehensive benefits, and a flexible working environment to foster creativity and productivity. Join a hypergrowth startup that is shaping the future of financial technology.