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LinkedIndavid@raydar.xyz

Full Stack AI Engineer

Early-stage technology company

  • LocationSan Francisco, California
  • TypeFull-time
  • Posted12 October 2026

The role, as published

About the company

Our client is an early-stage technology company.

The role

Raydar is recruiting for this role on behalf of our client. Design and build AI-driven systems along with the user-facing applications that sit on top of them, spanning backend services and front-end work. The position is hands-on and autonomous, with considerable greenfield development in a small engineering group.

What you'll do

  • Develop autonomous agent systems, including memory and iterative self-improvement mechanisms.
  • Create pipelines for model evaluation and for generating artificial training data.
  • Devise grading methods for areas where correct answers are hard to define objectively.
  • Build vector search and retrieval infrastructure that handles heavy traffic.
  • Develop large-scale web crawlers that gather visual content.
  • Deploy model inference services and expose them through APIs for external users.
  • Improve tooling and infrastructure so that systems stay dependable and responsive.
  • Create internal data-management tools and interfaces for outside specialist reviewers.
  • Design engaging, game-like web features such as quizzes, rankings and incentive flows.

What we're looking for

  • Background in shipping AI products used directly by end users, or time spent at a company built around AI.
  • Practical experience with LLM-based applications, including agent workflows, prompt and context design, embeddings and search indexing.
  • Ability to deliver complete products, from web interfaces to the backend systems that support them.
  • Degree in computer science or a related field.
  • Fluent English.
  • Comfort working in early-stage settings with unclear requirements.
  • Real curiosity about design and visual quality.
  • Inventive approach to building infrastructure for problems with no established playbook.

Bonus points

  • Strong skills in React, TypeScript and Python.
  • Experience at a small engineering organization or a company that scaled quickly.
  • Public code contributions or side projects driven by personal curiosity.
  • Experience at design software, web indexing or data-focused companies.
  • Relocation support

Location and work model

  • San Francisco, California, United States
  • On-site, in office
  • Full-time

Compensation, as the posting describes it

  • Equity

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