# Software Engineer, AI (Senior/Staff)

**Company:** [Monarch](https://hotfix.jobs/companies/monarch)
**Location:** Remote
**Role:** ML Engineering
**Experience:** 5+ years
**Skills:** Python, Prompt Engineering, RAG, LLMs, Machine Learning, Embeddings, Similarity Search, Ai Evaluation, Braintrust, LangGraph, Crewai, Autogen, Lora, RLHF, Vector Databases
**Posted:** 2026-02-18

> Build and own AI features for personal finance app using GenAI, ML, prompt engineering, RAG, and multi-agent systems. Requires 5+ years engineering with 2+ years production AI/ML, strong Python, and evaluation expertise.

## Job Description

## What You'll Do

- **Apply AI to Real Financial Problems**: Use GenAI and ML for spending patterns, actionable insights, and automating financial tasks.
- **Choose the Right Tool**: Balance prompts, retrieval systems (RAG), and custom models for reliable scale.
- **Ship with Confidence**: Design test datasets, implement scorers, and use Braintrust-based eval system.

**Partnership with AI Platform**:
- **You Own**: AI feature development, agent design, ML improvements, evaluation, prompt engineering.
- **AI Platform Owns**: LLM routing, observability, infrastructure.
- **Together**: End-to-end quality, frameworks, incident response, roadmap.

## What You'll Bring

- **5+ years** software engineering, **2+ years** production ML/AI systems.
- Proven LLM features with prompt engineering, RAG, evaluation.
- ML fundamentals: embeddings, similarity search, classification, probabilistic reasoning.
- AI evaluation tooling (golden sets, rubric scoring, LLM-as-judge).
- Excellent Python for production AI features.
- Strong collaboration, product sensibility, strategic mindset.

## Nice to Haves

- Multi-Agent Systems: LangGraph, CrewAI, AutoGen.
- Fine-Tuning: LoRA, RLHF, Vertex AI.
- Fintech background.
- Vector Databases: OpenSearch, pgvector, Pinecone.
- Safety: red-teaming, guardrails.

## Benefits

- Fully remote work.
- Competitive cash and equity.
- Setup stipend, competitive benefits (medical, dental, vision, 401k), unlimited PTO, monthly 3-day weekend.

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**Apply:** https://hotfix.jobs/jobs/4aaf2192-6bbb-4127-b220-1fc879d271f3
**Canonical:** https://hotfix.jobs/jobs/4aaf2192-6bbb-4127-b220-1fc879d271f3