Sr. Applied Machine Learning Engineer

Summary by AIEngineer.careers

Sr. Applied Machine Learning Engineer is a Machine Learning Engineer role (full-time). with Plugmotors. in LOS ANGELES, US. Compensation shown: $164K–$200K. Imported from Ashby-hosted careers page. Apply on the employer's site (jobs.ashbyhq.com).

Imported from Ashby-hosted careers page · Apply on jobs.ashbyhq.com

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LOS ANGELES · US

$164K–$200K

Full-time

SENIOR

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Imported job description

Sourced from jobs.ashbyhq.com

Plug is an AI-native marketplace for used electric vehicles, and this role sits on its Intelligence team. You'll extend the pricing and battery state-of-health models and build LLM agents and multi-agent workflows for document extraction, inspection, and dealer/seller communication. The role emphasizes tracing, evals, and data-driven model and prompt decisions, with full-stack work in TypeScript and React when needed.

Responsibilities

Build and ship agents and multi-agent workflows for operations, dealers, and sellers
Trace agent steps, tool calls, and decisions to debug failures and create eval cases
Write evals alongside each agent and gate prompt, model, and tool changes on results
Compare models and prompts on accuracy, cost, and latency and manage upgrades
Integrate agents with existing services through clean APIs and tools
Ship full-stack TypeScript and React screens and backend endpoints when needed
Build reusable tools and write-ups to help engineering adopt agent patterns

Requirements

5+ years of full-time industry software engineering shipping production features
Hands-on experience shipping LLM features to production: tool use, retrieval, structured output
Experience building evals and tracing for LLM systems
Strong TypeScript or Python and comfort across APIs, databases, and frontend
Agent-first mindset with self-built tooling such as MCP servers, skills, or evals
BS in computer science, math, statistics, or related field, or equivalent experience

Nice to Have

Experience with agent frameworks like Claude Agent SDK or LangChain Deep Agents
Background in marketplaces, automotive, or EV domains
Comfort working in ambiguous, fast-moving startup environments

Benefits

Health insurancedental insurancevision insurance401kEquity / stock optionsUnlimited PTOmealsdog friendly office

Tech Stack

Claude Agent SDKEvalsLangChainLLMMCPPythonRAGReactTypeScript

Plugmotors

Los Angeles · US · 56+ employees

Plug Technologies Inc (operating as Plug) is an automotive fintech startup founded in 2023 that operates an online marketplace dedicated to used electric vehicles. Its platform enables consumers, dealers, and commercial partners to sell, trade, and auction EVs, while providing instant data-driven valuations, battery-health analysis, payment, pickup, and title-transfer services. Dealers bid in real time on inventory, giving sellers a fast exit and creating a specialized wholesale EV sourcing channel.