Senior Software Engineer (AI)

Senior Software Engineer (Remote | $30–$100/hr)

October 06, 2026

Senior Software Engineer (Remote | $30–$100/hr)

Company: Synthires Software Engineer
Position: Software Engineer
Type: Contractor — ~15 hours/week
Compensation: $30–$100/hour
Location: Remote
About the Opportunity
Help train next-generation AI systems by creating challenging coding tasks and implementing deterministic verifiers that distinguish valid solutions from incorrect ones. No prior AI experience is required — your software engineering expertise is what matters.
Key Responsibilities

• Create realistic coding tasks involving feature implementation and bug fixing.
• Build deterministic verifiers that accept valid solutions and reject incorrect ones.
• Debug, test, optimize, and refactor code.
• Evaluate solutions using strong code review and testing practices. Required Qualifications
• Strong backend experience with Java, Node.js, Go, Rust, TypeScript, Python, C++, or similar.
• Experience building scalable services and APIs.
• Strong debugging, performance optimization, and automated testing skills.
• Solid code review and software engineering judgment. Preferred Qualifications
• Experience with large-scale application development and refactoring.
• Strong knowledge of algorithms, data structures, and computer science fundamentals.
• Experience designing test strategies, maintaining large test suites, or diagnosing flaky tests.
• Strong analytical, problem-solving, and technical communication skills. Compensation
• $30–$100/hour, output-based.
• Approximately 100 positions available.
• Minimum weekly task submissions apply.
• Flexible scheduling, including weekends if desired. Application Process

1. Submit your application and screening questions.
2. Complete a ~30-minute AI interview.
3. Complete the technical assessment, if required.
4. Hiring Manager review.