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Latest Backend Engineering jobs at Mercor

Software Engineer, Platform

Builds secure, scalable backend systems for contracts, payouts, fraud detection, and identity/access management on Mercor's AI platform. Requires 4+ years experience with production systems at scale and strong ownership.

130k – 500kSan Francisco, CA +1Backend EngineeringOn-site4+ YOEGoAWS

Software Engineer, Fraud

Builds backend systems for fraud detection, identity verification, and abuse prevention at scale. Partners with product/engineering on roadmaps; requires 4+ years software engineering experience, strong backend fundamentals, and autonomous problem-solving in ambiguous spaces.

130k – 500kSan Francisco, CA +1Backend EngineeringOn-site4+ YOEGoAWS

Backend Engineer, Marketplace

Builds backend systems for marketplace matching, search, allocation, and workflows using Python/Go. Requires experience with reliable high-throughput APIs, distributed systems, and data modeling to optimize fill rates and performance.

130k – 500kSan Francisco, CA +1Backend EngineeringOn-siteGoAPIs

Payments Engineer

Build and scale resilient payments infrastructure for a high-volume AI talent marketplace, focusing on observability, automation, and reliability in payout orchestration, ledgers, and settlements. Requires 5+ years backend experience, preferably in fintech, with expertise in payment gateways and distributed systems.

100k – 500kSan Francisco, CA +1Backend EngineeringOn-site5+ YOEGoC++

Software Engineer, Automation

Builds autonomous agent systems for internal operations using Python and LLM APIs, including MCP servers, evaluation frameworks, and workflow orchestration. Owns end-to-end backend infrastructure with focus on reliability and real-world impact.

130k – 500kSan Francisco, CABackend EngineeringOn-siteAPIsPython

Software Engineer, Agentic Product

Builds scalable agentic products including LLM agents, RL environments, full-stack interfaces, and orchestration pipelines for AI model training and automation. Works cross-functionally on automation and evaluation platforms using Python, React, and AI tools.

130k – 500kSan Francisco, CA +1Backend EngineeringOn-siteReactMySQL

Software Engineer, Backend

Builds scalable backend systems and APIs powering AI workflows for talent platforms and data annotation for top AI labs. Requires strong coding in Python/Go/Rust, distributed systems knowledge, and cloud experience.

130k – 500kSan Francisco, CABackend EngineeringOn-siteGoSQL