About the Role

About The Job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position

Senior Software Engineer, Full Stack (Python, Java, Rust, C#, C++)

Type

Contract

Compensation

$90–$110/hour

Location

Remote

Commitment

40 hours/week

Role Responsibilities

Build and ship full-stack applications, services, and internal tools in Python, Java, Rust, C#, C++, or TypeScript to exercise frontier model capabilities.
Integrate pre-release model APIs into working software, including tool interfaces, evaluation harnesses, and telemetry.
Diagnose and document model and integration failure modes, translating engineering observations into clear written feedback for the research team.
Prototype quickly against shifting requirements, delivering working increments with limited up-front specification.
Collaborate with the engineering manager and other engineers to maintain consistency in code quality, architecture, and technical documentation.

Qualifications

Must-Have

6+ years of professional experience building and shipping production software.
Deep production experience in at least one of Python, Java, Rust, C#, or C++.
Hands-on ownership across the stack: backend service and API design, a modern front-end framework (React or equivalent), data modeling, and cloud deployment.
Ability to onboard onto an unfamiliar codebase and deliver working code quickly.
Strong written communication skills.

Compensation & Legal

W-2 employment with Cincinnatus LLC.

Application Process

(Takes 20–30 mins to complete)

Upload resume
AI interview based on your resume
Submit form

Resources & Support

For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome

For any help or support, reach out to: support@mercor.com

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

Requirements

Full Stack Development

Experience in building and shipping production software across the full stack.

Programming Languages

Deep production experience in at least one of Python, Java, Rust, C#, or C++.

API Design

Hands-on ownership of backend service and API design.

Front-End Frameworks

Experience with modern front-end frameworks like React.

Cloud Deployment

Experience with data modeling and cloud deployment.

Nice to Have

Strong Communication Skills

Ability to translate engineering observations into clear written feedback.

Quick Prototyping

Ability to prototype quickly against shifting requirements.

Benefits

Remote Work

The position allows for remote work.

Flexible Hours

Commitment of 40 hours per week with flexibility.