Software Engineer, Full Stack at Mercor

Full Stack Software Engineer | $29–35/hr | Remote (India) | Full-Time

Join a leading AI lab's GenAI team and play a central role in building foundational AI models from the ground up. This full-time, 40-hour/week engagement places you directly alongside the lab's engineering manager, where you'll build, integrate, and stress-test real software on top of frontier models before they ship.

Key Responsibilities

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

Core Qualifications

• 3+ years of professional experience building and shipping production software at a recognized, top-tier organization.
• Production proficiency in at least one of Python, Java, Rust, C#, or C++, plus working knowledge of a second language ecosystem.
• Hands-on full-stack experience: backend services and APIs, a modern front-end framework (React or equivalent), relational or document databases, and cloud deployment.
• Demonstrated ability to onboard quickly onto unfamiliar codebases and deliver working code with minimal ramp-up time.
• Strong written communication skills with the ability to explain complex technical decisions clearly.
• Availability for at least 40 hours/week during weekdays.

This is a unique opportunity to work at the frontier of AI development, contributing directly to the most advanced Large Language Models in the industry.