iOS App Developer / Trainer

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Remote (129) On-site (95) Get notified about new Swift jobs in Spain. Sign in to create job alert 382 Swift Jobs in Spain

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Freelance Developer Consultant (Kotlin) - AI Trainer Mindrift Spain Be an early applicant 1 week ago

• Freelance Developer Consultant (Kotlin) - AI Trainer

Freelance Developer Consultant (Kotlin) - AI Trainer Mindrift Barcelona, Catalonia, Spain Be an early applicant 6 days ago

• Freelance Developer Consultant (Kotlin) - AI Trainer

Freelance Developer Consultant (Kotlin) - AI Trainer Mindrift Madrid, Community of Madrid, Spain Be an early applicant 6 days ago

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Mobile Developer (iOS & Android) Digital Profiles Spain 1 day ago

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IOS Developer (100% Teletrabajo) SlashMobility Madrid, Community of Madrid, Spain 9 months ago

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• IOS Developer 100% Remoto

IOS Developer 100% Remoto SlashMobility Madrid, Community of Madrid, Spain 8 months ago

• Mobile Engineer (Remote - EMEA)

Mobile Engineer (Remote - EMEA) Jobgether Spain Be an early applicant 6 days ago

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Freelance Mobile iOS / Android knowmad mood Spain 2 weeks ago

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iOS Developer (m/f/d) Quantion Greater Barcelona Metropolitan Area 1 day ago

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Mobile Application Developer European Tech Recruit Barcelona, Catalonia, Spain 2 weeks ago

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iOS / Android Engineer (hybrid - remote) Product Pulse Barcelona, Catalonia, Spain 5 days ago

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Ingeniero/a de Software – iOS Developer (Junior) Indra San Fernando de Henares, Community of Madrid, Spain 2 weeks ago

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Mobile Developer (m/f/d) DEKRA España Málaga, Andalusia, Spain 2 weeks ago

• iOS Software Engineer (Barcelona - Hybrid)

iOS Software Engineer (Barcelona - Hybrid) Wizeline Barcelona, Catalonia, Spain Be an early applicant 1 week ago

• Remote iOS Developer

Remote iOS Developer Plexus Tech Madrid, Community of Madrid, Spain 6 months ago

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IOS Developer Fibonad Madrid, Community of Madrid, Spain 2 months ago

• Software/Engineer Manager (Mobile)

Software/Engineer Manager (Mobile) Plexus Tech Madrid, Community of Madrid, Spain 4 months ago

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Mobile Applications Developer - iOS / Android / Language Models European Tech Recruit Barcelona, Catalonia, Spain 2 weeks ago

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iOS Developer [with english] Almato Iberia Spain 6 days ago

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Mobile Developer (iOS, Android and LLM Applications) - Fixed Term Contract - Barcelona European Tech Recruit Barcelona, Catalonia, Spain Be an early applicant 2 weeks ago

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Desarrollador/a iOS - Front Vermont Solutions Las Rozas de Madrid, Community of Madrid, Spain Be an early applicant 1 week ago

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Mid iOS Engineer | 100% Remote UST España & Latam Spain 1 month ago

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Mobile Software Engineer (x/f/m) Alan Almería, Andalusia, Spain Be an early applicant 1 day ago

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SENIOR IOS Developer- 100% remoto SlashMobility Madrid, Community of Madrid, Spain 1 year ago

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Desarrollador iOS MC Engineering Barcelona, Catalonia, Spain 1 year ago

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Mobile Tech Lead (Full remote within Spain) Leadtech Group Spain Be an early applicant 2 weeks ago

• Senior Mobile Engineer

Senior Mobile Engineer Wizeline Greater Barcelona Metropolitan Area 5 days ago

• Senior iOS Engineer | 100% Remote

Senior iOS Engineer | 100% Remote UST España & Latam Spain 1 month ago

• SENIOR IOS Developer 100% Remoto

SENIOR IOS Developer 100% Remoto SlashMobility Madrid, Community of Madrid, Spain 7 months ago

• Mobile Development Team Lead (Full remote within Spain)

Mobile Development Team Lead (Full remote within Spain) Leadtech Group Barcelona, Catalonia, Spain 1 day ago

• iOS Developer

iOS Developer Plexus Tech Madrid, Community of Madrid, Spain 8 months ago

• iOS Mobile Developer

iOS Mobile Developer Second Window Barcelona, Catalonia, Spain 1 month ago

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iOS Developer 100% Remoto Experis España Spain 1 week ago

• Mobile Development Team Lead (Full remote within Spain)

Mobile Development Team Lead (Full remote within Spain) Leadtech Group Barcelona, Catalonia, Spain Be an early applicant 1 week ago

• Senior Mobile Device Management (Mobileiron) Engineer

Senior Mobile Device Management (Mobileiron) Engineer Tata Consultancy Services Madrid, Community of Madrid, Spain Be an early applicant 3 weeks ago

• Software Engineer, iOS Core Product - Barcelona, Spain

Software Engineer, iOS Core Product - Barcelona, Spain Speechify Barcelona, Catalonia, Spain Be an early applicant 2 months ago

• Mobile Software Engineer (x/f/m)

Mobile Software Engineer (x/f/m) Alan Bilbao, Basque Country, Spain Be an early applicant 1 day ago

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iOS Software Engineer - 100% Remote UST Madrid, Community of Madrid, Spain 2 weeks ago

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Senior iOS Engineer, The Bump The Knot Worldwide Barcelona, Catalonia, Spain Be an early applicant 2 weeks ago

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Mobile Developer (Fixed-term contract) Multiverse Computing Madrid, Community of Madrid, Spain Be an early applicant 4 days ago

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2- Desarrollador/a Movilidad iOS & Android nubeTI digital Madrid, Community of Madrid, Spain 9 months ago

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Senior Mobile Engineer (Android) 1inch Madrid, Community of Madrid, Spain Be an early applicant 5 days ago

• Lead iOS Engineer, The Bump

Lead iOS Engineer, The Bump The Knot Worldwide Barcelona, Catalonia, Spain Be an early applicant 2 weeks ago

• iOS Senior- Developer

iOS Senior- Developer Plexus Tech Madrid, Community of Madrid, Spain 6 months ago

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Senior Software Engineer, iOS The Knot Worldwide Barcelona, Catalonia, Spain Be an early applicant 2 weeks ago

• Software Engineer, iOS Core Product - Malaga, Spain

Software Engineer, iOS Core Product - Malaga, Spain Speechify Málaga, Andalusia, Spain Be an early applicant 2 months ago

• 🕶️ Desarrollador Móvil iOS 100% remoto (Proyecto accesibilidad)🤝📞

🕶️ Desarrollador Móvil iOS 100% remoto (Proyecto accesibilidad)🤝📞 Quental Madrid, Community of Madrid, Spain 2 weeks ago

• Software Engineer, iOS Core Product - Valencia, Spain

Software Engineer, iOS Core Product - Valencia, Spain Speechify Valencia, Valencian Community, Spain Be an early applicant 2 months ago You've viewed all jobs for this search Freelance Developer Consultant (Kotlin) - AI Trainer Mindrift Spain 1 week ago Be among the first 25 applicants See who Mindrift has hired for this role Save

• Report this job

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About The Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you'll have the opportunity to collaborate on these projects. Although Every Project Is Unique, You Might Typically

• 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

Note: Flexibility and quick adaptation to new requirements are essential. How To Get Started Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you'll help shape the future of AI while ensuring technology benefits everyone. Requirements

• You hold a Bachelor's or Master's Degree in Computer Science, Software Engineering, Software Development, Computer Engineering, Information Technology or other related fields
• You have at least 3 years of professional iOS/macOS development experience
• Your level of English is advanced (C1) or above
• Mid-level proficiency in Swift 5.9+, including SwiftUI, Combine, async/await, and the concurrency model
• Hands-on experience with testing frameworks (XCTest, Quick/Nimble) and UI automation testing
• Proficiency with Xcode, Swift Package Manager, and CI/CD tools (Fastlane, GitHub Actions, Xcode Cloud)
• Experience with App Store deployment and monitoring tools (Crashlytics, Firebase)
• Strong understanding of architectural patterns (MVVM, Clean Architecture) and performance optimization (ARC, Instruments)
• Experience integrating AI/ML capabilities (Core ML, Vision, Create ML)
• Practical use of AI-assisted tools for code generation, refactoring, and test automation
• Strong skills in crash analysis, memory debugging, and performance profiling
• You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines
• Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge

BenefitsWhy this freelance opportunity might be a great fit for you?

• Get paid for your expertise, with rates that can go up to $29/hour depending on your skills, experience, and project needs
• Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments
• Work on advanced AI projects and gain valuable experience that enhances your portfolio
• Influence how future AI models understand and communicate in your field of expertise
• Seniority level Mid-Senior level
• Employment type Part-time
• Job function Other
• Industries IT Services and IT Consulting

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