Software Engineer III at Mercor

Software Engineer III | $80–110/hr | Remote (ET/PT)

A prestigious tech company is looking for a skilled Software Engineer III to join their Interview Experience team within Recruiting Products. This fully remote role focuses on building and enhancing AI-powered hiring infrastructure that supports hundreds of thousands of interviews annually — directly shaping how the company discovers and hires top talent worldwide.

What You'll Do

• Develop and enhance AI-powered interviewing tools and automation systems that optimize hiring infrastructure at scale.
• Build intuitive frontend experiences using React and related frameworks for recruiters, interviewers, and candidates.
• Design and maintain backend services supporting interview scheduling, AI transcription/summarization, and automation workflows.
• Collaborate with AI/ML teams to integrate GPT-4o and other language models for interview feedback automation and quality improvements.
• Partner cross-functionally with Product Managers, Designers, and Data Scientists to deliver end-to-end product experiences.
• Leverage AI-powered development tools including Cursor, Claude Code, and Devmate to accelerate development velocity.
• Contribute to expanding interview transcription capabilities and implementing AI quality checker systems.
• Support autonomous scheduling improvements and candidate-driven experiences that reduce manual coordinator interventions.
• Write clean, maintainable code following engineering best practices and participate in code reviews.

Required Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, or a related technical field (or equivalent practical experience).
• 4+ years of software engineering experience with object-oriented languages such as Java, C++, or C#.
• Experience with scripting languages including Python, PHP, or JavaScript.
• Proficiency with frontend frameworks such as React, Vue, or similar modern JavaScript frameworks.
• Strong problem-solving skills with the ability to work independently on complex technical challenges.
• Excellent communication skills and a collaborative, team-oriented mindset.

Preferred Qualifications

• Experience with AI-powered development tools (Cursor, Claude Code, Devmate, or similar).
• Familiarity with GraphQL and modern API design patterns.
• Experience with the React ecosystem, including Relay for data fetching.
• Knowledge of AI/ML technologies and experience integrating LLMs into production applications.
• Background in recruiting technology, HR systems, or enterprise productivity tools.
• Experience with interview scheduling systems, automation platforms, or workflow management tools.
• Knowledge of privacy-aware development practices for recruiting systems.

This is a W-2 employment engagement administered by Cincinnatus, an enterprise staffing company. Working hours should align to ET or PT time zones.