Swift Engineer

SME Careers; Brasil; Remote; BRL 276,000 - 415,000; Part time

Job summary

SME Careers, a fast-growing AI Data Services company, seeks a remote, hourly Swift Engineer. You will review AI-generated Swift and iOS content, evaluate reasoning and problem-solving, and write expert-level explanations for model solutions.

This contract role offers flexible hours and opportunities to engage with leading AI projects. You should have 2+ years in Swift/iOS development, strong fundamentals, memory management, ARC, and experience shipping or maintaining production mobile apps.

Qualifications

• Proficient in Swift language fundamentals, memory management, and ARC.
• Experience shipping or maintaining production iOS apps.
• Strong ability to evaluate code for correctness, performance, and UI quality.

Responsibilities

• Review AI-generated Swift content and iOS solutions for accuracy and clarity.
• Develop high-quality Swift and iOS-focused training content and prompts.
• Assess model outputs, identify errors, and provide expert explanations and improved solutions.

Skills

Swift/iOS development

SwiftUI

MVVM

UIKit

Code review & debugging

English writing

LLMs for coding

Education

Bachelor’s degree in Computer Science

Tools

Xcode

Git

Job description

As a remote, hourly paid Swift Engineer, you will review AI-generated responses and generate high-quality Swift and iOS-focused content, evaluating the reasoning quality and step-by-step problem-solving behind each solution. You will assess solutions for accuracy, clarity, and adherence to the prompt; identify errors in methodology or conceptual understanding; fact-check technical details; write expert-level explanations and model solutions that demonstrate correct approaches in Swift and iOS; and rate and compare multiple AI responses based on correctness and reasoning quality. This contract role is with SME Careers, a fast-growing AI Data Services company and subsidiary of SuperAnnotate that provides AI training data for many of the world’s largest AI companies and foundation model labs, helping to improve the world’s premier AI models.

Important

There is no immediate project for this role; however, if qualified, you will be among the first experts we reach out to when relevant opportunities arise. This will also provide you with access to future projects available through our expert network.

Key Responsibilities

• Develop AI Training Content: Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
• Optimize AI Performance: Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
• Ensure Model Integrity: Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Your Profile

• 2+ years of hands‑on Swift/iOS development experience.
• Strong understanding of core Swift fundamentals, memory management, and ARC.
• Professional iOS engineering experience shipping or maintaining production mobile applications.
• Minimum Bachelor’s degree in Computer Science or a closely related field.
• Ability to evaluate code for correctness, maintainability, performance, and UI logic quality.
• Significant experience using large language models (LLMs) to assist with coding, debugging, and code review.
• Excellent English writing skills with the ability to articulate complex technical concepts clearly.
• Highly preferred: Experience with SwiftUI, UIKit, and Combine in modern iOS architectures such as MVVM.
• Preferred: Merged pull requests in Swift/iOS open-source projects, competitive programming exposure, or similar evidence of strong algorithmic problem‑solving skills.
• Experience reviewing app logic or mobile architecture, with previous AI data training or model evaluation work strongly preferred, and Minimum C1 English proficiency.