Remote Freelance Developer Consultant (Kotlin)

Salary: £63,000 - 103,000 per year

Requirements

• You hold a Bachelors or Masters Degree in Computer Science, Software Engineering, Software Development, Computer Engineering, Information Technology, or another related field.
• You have at least 3 years of professional iOS/macOS development experience.
• Your level of English is advanced (C1) or above.
• You have mid-level proficiency in Swift 5.9+, including SwiftUI, Combine, async/await, and the concurrency model.
• You have hands-on experience with testing frameworks such as XCTest and Quick/Nimble, as well as UI automation testing.
• You are proficient with Xcode, Swift Package Manager, and CI/CD tools such as Fastlane, GitHub Actions, and Xcode Cloud.
• You have experience with App Store deployment and monitoring tools such as Crashlytics and Firebase.
• You have a strong understanding of architectural patterns such as MVVM and Clean Architecture, as well as performance optimization with ARC and Instruments.
• You have experience integrating AI/ML capabilities such as Core ML, Vision, and Create ML.
• You have practical experience using AI-assisted tools for code generation, refactoring, and test automation.
• You have strong skills in crash analysis, memory debugging, and performance profiling.
• You are ready to learn new methods, switch between tasks and topics quickly, and work with challenging, complex guidelines.
• You have the flexibility to work fully remotely and have a laptop, internet connection, available time, and enthusiasm to take on a challenge.

Responsibilities

• Code generation and code review.
• Prompt evaluation and complex data annotation.
• Training and evaluation of large language models.
• Benchmarking and agent-based code execution in sandboxed environments.
• Working across multiple programming languages.
• Adapting guidelines for new domains and use cases.
• Following project-specific rubrics and requirements.
• Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects.
• Creating training prompts and refining model responses.
• Contributing to AI projects on a flexible, self-directed schedule.

Technologies

• AI
• CI/CD
• Cloud
• Fastlane
• Firebase
• GitHub
• macOS
• MVVM
• Swift
• Xcode
• iOS
• UX UI Design

More

We are Mindrift, where innovation meets opportunity. We connect specialists with AI projects from major tech innovators and use collective intelligence to ethically shape the future of AI. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. This is a fully remote freelance opportunity for candidates currently residing in the specified country, and it offers the flexibility to work part-time around your other commitments while contributing to advanced AI projects and building valuable experience for your portfolio. The role may provide rates of up to $44/hour depending on your skills, experience, and project needs, and we ask that applicants submit their resume in English and indicate their level of English proficiency.

last updated 28 week of 2026