> Markdown version of [/jobs/ext/4290814-web-applications-developer-fully-remote-upto-80-hr](https://www.wearedevelopers.com/jobs/ext/4290814-web-applications-developer-fully-remote-upto-80-hr). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Web Applications Developer - Fully Remote | Upto $80/hr - **Company:** Mercor, Inc. - **Location:** New York, NY, United States (Remote available) - **Experience:** Experienced - **Salary:** $104,000.0 - $166,400.0 - **Contract:** Permanent contract - **Skills:** Test Suite, Artificial Intelligence, Command-Line Interface, Payment Systems, Software Engineering, Web Applications, Backend, Git, Front End Software Development, Docker - **Published:** October 23, 2026 - **Apply:** https://www.thejobnetwork.com/job/6565b7e6-b5cc-4618-8b91-7a821954493b/web-applications-developer-fully-remote-upto-hr ## About the Role Must-Have * 3+ years of professional full-stack engineering experience. * Fluency in at least one modern frontend framework and one backend runtime. * Experience with auth, permissions, payment flows, and file upload in production. * Ability to specify systems precisely in writing. * Comfort with Docker, Git, and command-line tooling. Preferred * Experience building evaluations, benchmarks, or test suites for AI systems. ## Description * Write precise product specifications for application development and automatic grading. * Build complete reference implementations that meet all written criteria. * Author browser-driven acceptance criteria to verify user-visible behavior. * Calibrate task difficulty using frontier models to achieve target performance. * Verify tasks fail cleanly against empty repositories to ensure genuine feature development., PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.