# Applied AI Engineer

**Company:** [Rillet](https://hotfix.jobs/companies/rillet)
**Location:** San Francisco, CA, New York, NY
**Role:** ML Engineering
**Salary:** $180k – $240k/yr
**Experience:** 3+ years
**Skills:** Python, LLMs, RAG, Agentic Workflows, Backend Systems, APIs, Cloud Infrastructure, Structured Extraction, Fine-Tuning, Evaluation Frameworks
**Posted:** 2026-04-27

> Designs and ships production AI systems including agentic workflows, RAG pipelines, and LLM integrations for an AI-native ERP platform serving finance teams. Requires 3+ years backend experience and 2+ years production AI with Python proficiency.

## Job Description

## What You'll Do

- Own AI features end-to-end: from designing agentic workflows and RAG pipelines to the infrastructure that runs them in production at scale.
- Work on genuinely hard problems: financial data is structured, high-stakes, and unforgiving, making it one of the more interesting domains to apply LLMs to.
- Build the evaluation frameworks and experimentation loops that turn good models into reliable, production-grade systems.
- Partner directly with product and domain experts to push the frontier of what AI can do inside an ERP, not just what's been done before.

## Who We're Looking For

- 3+ years in a technical role with a strong foundation in **backend systems**, **APIs**, and **cloud infrastructure**
- 2+ years shipping production AI systems with real users and real stakes, not research or prototypes
- Hands-on experience with production **LLM applications**: **RAG pipelines**, **agentic systems**, or **structured extraction**
- Proficiency in **Python** and comfort working across the full stack to deliver end-to-end features
- Strong product instincts and a habit of thinking about user impact, not just technical correctness
- Drawn to hard, ambiguous problems and energized by building in an environment where the playbook is still being written

**Bonus Points**
- Background in fintech, ERP, or accounting software
- Experience with **fine-tuning** or training models, not just inference
- Familiarity with **Python**, **Kotlin**, **Java**, or **TypeScript**
- Experience building AI systems that operate on structured financial or transactional data

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**Apply:** https://hotfix.jobs/jobs/57f48e1d-2be5-4629-8d24-f5987223d169
**Canonical:** https://hotfix.jobs/jobs/57f48e1d-2be5-4629-8d24-f5987223d169