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https://monumint.com at Monumint (YC W24)

Full Stack Engineers💼 Full-time💰 $125,000–$125,000🗓 2026-09-01 → 2026-09-26

Core

Building the Voice AI infrastructure layer for financial services, enabling banks and fintechs to automate loan origination, account opening, servicing, and customer engagement.

Role type

Full Stack Engineer (Voice AI Infrastructure)

Builds

Voice AI agents and infrastructure for financial workflows

Domain

Financial Services / Voice AI / LLMs

Deliverable

production ML models | product features

Required skills

TypeScript, Node.js, React/Next.js, Postgres, Docker, Kubernetes, LLM integration, low-latency system design, durable workflow orchestration, AI agent reliability, observability, tool calling, guardrails

Preferred skills

Experience scaling concurrent voice systems, financial domain knowledge

Technologies

TypeScript, Node, React, Next.js, Postgres, Docker, K8s, LLMs

Responsibilities

Drive down voice latency to human-conversation levels while scaling to thousands of concurrent calls; Deploy agents that run durable workflows across days or weeks, maintaining state across calls, tools, documents, and human handoffs; Make AI agents reliable and observable in financial workflows including tool calling, evals, guardrails, and deterministic fallbacks

Seniority

Individual Contributor, early-stage startup

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