iOS Mobile Software Engineer (Swift/React Native)

Mercor is hiring experienced iOS mobile engineers with expertise in Swift or React Native to support a variety of high-impact research collaborations with leading AI labs. Freelancers will help improve AI systems through work extending coding benchmarks that reflect real-world development across diverse languages and domains. 

This is a unique opportunity to apply your engineering expertise toward shaping the next generation of intelligent systems.

Key Responsibilities

• Develop and validate coding benchmarks in Swift or React Native 

• Curate tasks, solutions, and test suites from real-world iOS repositories

• Ensure benchmarks include robust unit and integration tests for solution verification

• Debug, optimize, and document benchmark code to ensure reliability and reproducibility

• Provide structured feedback on solution clarity and adherence to iOS engineering best practices

Ideal Qualifications

• 3–10 years of experience as an iOS mobile engineer at a top tier tech company or as a mobile freelancer

• Strong proficiency in Swift

• Experience with debugging, testing, and validating mobile applications

• Attention to detail and ability to communicate technical reasoning clearly

Project Timeline

• Start Date: Immediate

• Duration: 1 month 

• Commitment: Part-time (15–20 hours/week)

Application & Onboarding Process

• Upload your resume

• AI interview: A short, 15-minute conversational session to understand your background, experience, and interest in the role

• Brief assessment testing real-world coding ability, technical depth, and debugging approach

• Follow-up communication within a few days with next steps and onboarding details

Apply today and leverage your software engineering expertise to help build the future of AI-driven systems!

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Contract and Payment Terms

• You will be engaged as an independent contractor.
• This is a fully remote role that can be completed on your own schedule.
• Projects can be extended, shortened, or concluded early depending on needs and performance.
• Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
• Payments are weekly on Stripe or Wise based on services rendered.
• Please note: We are unable to support H1-B or STEM OPT candidates at this time.

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. You will work on projects that focus on training and enhancing AI systems. You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.