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Backend Engineer (Coding Agent Experience)

Mercor

AI Expert - Software Engineering Contractor
Remote (Global) $85 – $85/hr June 15, 2026

Job description

About the Role

Mercor is partnering with a leading AI research lab to support a Frontier Code Agents project.

This role focuses on evaluating and improving frontier AI coding models through realistic software engineering workflows and structured technical assessments.

Rather than traditional feature development, contributors use professional engineering judgment to assess, compare, and improve the outputs of advanced AI coding agents.

Project capacity is limited and onboarding occurs on a first-come, first-served basis.

Key Responsibilities

Evaluate AI Coding Agents

  • Use frontier AI coding agents to complete and assess complex engineering tasks
  • Review AI-generated code for correctness, maintainability, performance, and code quality

Technical Review & Analysis

  • Identify bugs, edge cases, failure modes, and architectural weaknesses
  • Analyze tradeoffs in AI-generated implementations
  • Apply backend engineering expertise to realistic production-style scenarios

Model Comparison

  • Compare outputs from multiple frontier coding models
  • Evaluate strengths and weaknesses across different solutions
  • Provide structured assessments that improve future model performance

Ideal Candidate Background

Required Experience

  • Minimum 2 years of professional backend engineering experience
  • Experience building APIs, distributed systems, microservices, backend platforms, and databases

AI Coding Tools

Regular experience using AI-assisted development tools such as Cursor, Claude Code, Codex, Windsurf, or Gemini CLI.

Preferred Qualifications

  • Experience working on large-scale production systems
  • Experience reviewing complex codebases and distributed architectures

Time Commitment

  • Sprint-based engagement
  • Projects typically run in 12–24 hour work windows

Compensation

  • $400 per accepted task (~$85/hr effective rate)
  • Most tasks take approximately 2–3 hours after onboarding

About Mercor

Mercor partners with leading AI labs and enterprises to train and evaluate frontier AI systems using expert human knowledge.

Apply now

You will be redirected to the company's website to complete your application.

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Python SWE

Mercor
AI Expert - Software Engineering Contractor · Part-time Short-term
Python FastAPI Pydantic +11
  • United States, United Kingdom, Canada, Europe
  • $100 – $100/hr
  • Jun 11, 2026

Remote contract opportunity for experienced Python software engineers to contribute production-grade Python expertise toward frontier AI model training projects. Strong knowledge of modern Python architecture, testing, performance optimization, and scalable systems required.

View Details Apply Now

Frequently asked questions

Is Mercor legitimate?
Yes, Mercor is a legitimate company listed on RemoWork. We verify all companies on our platform. However, we always recommend doing your own research before sharing personal information or starting work. Check reviews from other users and visit the company's official website for the most up-to-date information.
How do I get started with Mercor?
To get started, visit Mercor's official website and look for their careers or sign-up page. Create an account, complete your profile with relevant skills and experience, and apply for available positions or projects. Some companies may require you to pass a qualification test or assessment before you can start working.
Does Mercor offer remote work?
Yes, Mercor offers remote work opportunities. Most tasks and positions can be completed from anywhere with a reliable internet connection and a computer or smartphone. Specific location requirements may vary by project or role, so check individual listings for details.
How does Mercor pay its workers?
Payment methods and schedules vary. Common payment options include PayPal, bank transfers, Payoneer, and other digital payment platforms. Visit Mercor's official website or check their payment/FAQ section for specific details about payment methods, minimum thresholds, and payout schedules.
What skills do I need to work with Mercor?
Required skills vary by role and project. Generally, you'll need a reliable internet connection, basic computer literacy, strong attention to detail, and good communication skills. Some positions may require specialized expertise, language proficiency, or technical qualifications. Check individual job listings for specific requirements.
What is Mercor's vetting process like?
Mercor uses an AI-powered vetting process that evaluates candidates through technical assessments, interviews, and skill verification. The platform matches vetted talent with companies looking for specific expertise. The process is designed to be efficient and identify top-tier professionals quickly.
What types of roles does Mercor offer?
Mercor connects professionals with AI engineering, software development, data science, machine learning, and other tech-focused roles. The platform works with startups and enterprises, offering both contract and full-time remote positions across various technical domains.
Is Mercor free for job seekers?
Yes, Mercor is free for job seekers and freelancers. The platform earns revenue from companies hiring through the network. Candidates can create profiles, get vetted, and apply for positions at no cost.
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