N

NewsBreak

Runs a personalized local news app for US readers

AI Engineer - Agent Platform

AI Application Engineering +1Confirmed live in the last 24 hours
Full-timeMountain View, CA, USAIn-person

About the Job

Requirements

  • Demonstrable experience shipping an AI product with real users, such as a side project, internal tool, open-source agent, or startup minimum viable product.
  • Active, hands-on familiarity with modern AI development tools such as Cursor, Claude Code, Codex, or v0, or equivalents, and a clear sense of how and when to apply them.
  • Ability to work independently end-to-end across backend, frontend, deployment, instrumentation, and iteration without needing a fully defined specification to get started.
  • Developed perspective on AI agent design, including context management, tool-calling protocols, evaluation strategy, and tradeoffs between fine-tuning, prompting, and scaffolding.
  • Strong proficiency in Python, Go, or Node, with solid backend engineering experience across application programming interfaces, databases, queues, and caches, and an understanding of how system design needs evolve with scale.
  • Sufficient frontend capability in React or Next.js to ship functional internal tools independently.
  • Product sensibility, including willingness to push back when something feels off and to consider the end user alongside the technical architecture.

Responsibilities

  • Build the agent runtime that orchestrates context assembly, tool invocation, model routing, and workflow tracking across multiple agentic products, providing a foundational layer for other teams.
  • Design the evaluation and observability harness that runs thousands of agent traces per day, surfaces regressions before release, and turns production failures into actionable improvements.
  • Own the context engineering layer, including retrieval, ranking, compression, and memory, that determines what is included in a model call; contribute informed opinions on retrieval-augmented generation versus long-context approaches versus structured tool returns.
  • Integrate and benchmark new foundation models as they become available, and make principled model-selection decisions across agents based on capability and cost.
  • Build user-facing tools such as playgrounds, agent traces, and control panels, and ship them to production for daily use by the internal product team.
  • Collaborate closely with product to take new agent concepts from an early brief to a working first version in weeks.

Desired Qualifications

  • Experience building or operating a multi-agent system in production, including orchestration, sub-agents, Model Context Protocol, or skills.
  • Hands-on experience with evaluation frameworks such as LM-eval, custom harnesses, or large language model-as-judge; prompt iteration workflows; or fine-tuning methods such as LoRA, reinforcement learning from human feedback, or direct preference optimization.
  • A public artifact, such as a GitHub repository, technical blog, paper, or demo, that reflects the candidate’s approach to problems.
  • Experience integrating large language models with complex real-world data, such as news, advertising, geographic, or user-behavior data, at scale.

About the Company

NewsBreak

Runs a personalized local news app for US readers

NewsBreak runs a free app and website that gather local and national news for readers across the United States and sort it by ZIP code and by each reader's interests. In 2022, it launched a national network of independent local writers to cover communities that get little attention from traditional media. Its software pulls articles from local outlets, national publishers, and its own contributors into a single feed, and the app sends nearby alerts about crime, weather, and traffic. NewsBreak makes money by selling ads, including to local businesses, and shares ad revenue with partner publishers. It was founded in 2015 and is based in Mountain View, California.

Company size
201-500
Company stage
Series C
Total funding
$139.8M
Headquarters
Mountain View, CA
Founded
2015

Recently Posted Jobs

Explore more opportunities at NewsBreak

See more jobs