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Senior Full-Stack Software Engineer

$90–$110/hr

Remote — US onlyContracttechnology
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About this role

Role Overview

Build, integrate, and stress-test production software that puts frontier large language models through real-world use cases before release. You will work directly with an AI lab engineering manager on fast-moving projects, contribute working code early, and help translate hands-on engineering findings into feedback for research teams.

Key Responsibilities

  • Build and ship full-stack applications, services, and internal tools using Python, Java, Rust, C#, C++, or TypeScript to exercise frontier model capabilities end to end.
  • Integrate pre-release model APIs into functional software, including tool interfaces, evaluation harnesses, and telemetry.
  • Identify and document model and integration failure modes, turning engineering observations into clear written feedback for researchers.
  • Prototype against changing requirements and deliver working increments with limited up-front specification.
  • Collaborate with the engineering manager and fellow engineers on code quality, architecture, and technical documentation.

Qualifications

  • 6+ years of professional experience building and shipping production software at a recognized top-tier organization, including end-to-end system ownership.
  • Deep production experience in at least one of Python, Java, Rust, C#, or C++, plus demonstrated delivery in a second language from a different ecosystem.
  • Hands-on full-stack experience with backend service and API design, React or an equivalent modern front-end framework, data modeling, and cloud deployment and operations.
  • Ability to become productive quickly in an unfamiliar codebase with minimal ramp-up.
  • Demonstrated career progression, strong written communication, and the ability to explain complex technical decisions clearly.

Work Terms

  • United States-based hourly W-2 employment.
  • Full-time weekday commitment of at least 40 hours per week.
  • Employment is through an employer of record, with potential placement on an AI lab team supporting high-impact initiatives.

Compensation

$90 to $110 per hour.

Eligibility

Employment decisions are made without discrimination based on race, religion, color, national origin, sex, including pregnancy, childbirth, reproductive health decisions, or related medical conditions, sexual orientation, gender identity or expression, age, protected veteran status, disability, genetic information, political views or activity, or any other legally protected characteristic.

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