Swift iOS Developer for AI Code Review

About OpenTrain

OpenTrain AI is the hiring and contracting organization for this role. OpenTrain is the #1 platform for finding and building careers in AI training and data labeling, helping contributors discover meaningful projects, build their profiles, and apply to opportunities in minutes.

• Free account creation
• Remote opportunities across the growing AI training industry
• Flexible project work for contractors and part-time contributors

About AI Training and Code Evaluation

AI training is the human side of building artificial intelligence. People review examples, assess model responses, and provide precise feedback so AI systems can become more accurate, useful, and reliable.

In this project, your software development expertise will help evaluate code generated in response to prompts. Your reviews will support the refinement of AI training processes while giving you direct experience with cutting-edge model development.

• Contribute to the development of modern AI systems
• Apply professional coding judgment to model-generated responses
• Work remotely with a flexible contractor schedule

The Role

OpenTrain AI is seeking an experienced Swift and iOS developer for an ongoing AI model training project. You will review and quality-assure code written in response to specific prompts, checking whether it follows the instructions and meets high standards for technical correctness, accuracy, and functionality.

The project is expected to continue for 3-6 months. The project description calls for 30-40 hours of expertise per week, while the structured opportunity details specify a minimum commitment of 20+ hours per week. Compensation is $14 per hour.

• Role type: Part-time contractor
• Pay: $14 per hour
• Expected project duration: 3-6 months
• Structured time requirement: 20+ hours per week
• Project workload described as 30-40 hours per week
• Work arrangement: Worldwide and remote

What You'll Do

You will scrutinize code responses generated by freelance AI trainers and determine whether each response satisfies the relevant prompt. Your evaluations and constructive feedback will help improve the quality of coding data used in AI training.

• Review Swift and iOS code for technical correctness
• Evaluate whether code follows the instructions in each prompt
• Check code quality, functionality, and adherence to development best practices
• Identify software issues and suggest improvements
• Provide clear, constructive technical feedback
• Perform quality assurance work accurately and thoroughly
• Work independently with minimal or no supervision
• Adapt to new software tools and technologies as project needs change

Requirements

This role requires extensive real-world Swift and iOS development experience. At least five years of Swift experience is required for consideration, with more than five years preferred. You should also be comfortable conducting detailed code reviews and communicating technical feedback in English.

• At least 5 years of Swift experience is required
• Extensive real-world iOS development experience
• Proven ability to analyze and optimize code
• Strong code review skills and knowledge of software development best practices
• Strong analytical and problem-solving abilities
• English proficiency at a minimum B2 level
• Excellent written and verbal communication skills in English
• Exceptional attention to detail
• Ability to work independently and consistently produce high-quality results
• Ability to adapt quickly to new tools and technologies

Preferred AI Training Experience

Knowledge of AI model training, especially the use of coding practices in AI data labeling, is relevant to this work. Previous quality assurance or quality control experience on AI data projects is a plus, but the core requirement remains substantial Swift and iOS expertise.

• Understanding of AI model training workflows
• Familiarity with coding-focused AI data labeling
• Previous AI data QA or QC experience is a plus
• Experience providing peer feedback that improves project outcomes is valuable

Who Should Apply

This opportunity is designed for experienced Swift and iOS developers who enjoy careful technical analysis and can explain their decisions clearly. It may suit professionals seeking flexible, remote contract work while contributing their specialized knowledge to the fast-growing AI industry.

When applying, be prepared to confirm your English proficiency level. A minimum B2 level is required for this project.

• Experienced Swift developers with at least five years of experience
• iOS professionals confident evaluating code written by others
• Detail-oriented reviewers who value accuracy and thoroughness
• Independent workers who can manage ongoing project responsibilities
• Clear communicators comfortable delivering constructive feedback

How to Apply Through OpenTrain

Create a free OpenTrain account, build your profile, and apply in minutes. Include your Swift and iOS background, code review experience, availability, and English proficiency level so your application reflects the requirements of this project.

• Confirm at least 5 years of Swift experience
• Describe your real-world iOS development background
• State your English proficiency level and confirm B2 or higher
• Review the 20+ hour weekly requirement and the 3-6 month project timeline
• Apply as a part-time contractor through OpenTrain