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Past month (299)
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382 Swift Jobs in Spain
- Freelance Developer Consultant (Kotlin) - AI Trainer
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
Mobile Developer
Passporter
Spain 1 week ago
- Mobile Developer (iOS & Android)
Mobile Developer (iOS & Android)
Digital Profiles
Spain 1 day ago
- IOS Developer (100% Teletrabajo)
IOS Developer (100% Teletrabajo)
SlashMobility
Madrid, Community of Madrid, Spain 9 months ago
- Mobile Developer (iOS & Android)
Mobile Developer (iOS & Android)
INNOCV Solutions
Madrid, Community of Madrid, Spain
Be an early applicant
1 month ago
- 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
Mobile Developer
ALTECH
Barcelona, Catalonia, Spain 8 months ago
- Mobile Application Developer
Mobile Application Developer
European Tech Recruit
Madrid, Community of Madrid, Spain 2 weeks ago
- Freelance Mobile iOS / Android
Freelance Mobile iOS / Android
knowmad mood
Spain 2 weeks ago
iOS Developer (m/f/d)
Quantion
Greater Barcelona Metropolitan Area 1 day ago
Mobile Engineer
European Tech Recruit
Madrid, Community of Madrid, Spain
Be an early applicant
2 weeks ago
- Mobile Application Developer
Mobile Application Developer
European Tech Recruit
Barcelona, Catalonia, Spain 2 weeks ago
- iOS / Android Engineer (hybrid - remote)
iOS / Android Engineer (hybrid - remote)
Product Pulse
Barcelona, Catalonia, Spain 5 days ago
- Ingeniero/a de Software – iOS Developer (Junior)
Ingeniero/a de Software – iOS Developer (Junior)
Indra
San Fernando de Henares, Community of Madrid, Spain 2 weeks ago
Mobile Engineer
European Tech Recruit
Barcelona, Catalonia, Spain
Be an early applicant
2 weeks ago
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
Plexus Tech
Madrid, Community of Madrid, Spain 6 months ago
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
- Mobile Software Engineer (x/f/m)
Mobile Software Engineer (x/f/m)
Alan
Madrid, Community of Madrid, Spain
Be an early applicant
1 day ago
- Mobile Applications Developer - iOS / Android / Language Models
Mobile Applications Developer - iOS / Android / Language Models
European Tech Recruit
Barcelona, Catalonia, Spain 2 weeks ago
- iOS Developer [with english]
iOS Developer [with english]
Almato Iberia
Spain 6 days ago
- Mobile Developer iOS & Android
Mobile Developer iOS & Android
Second Window
Madrid, Community of Madrid, Spain 4 months ago
- Software Engineer, iOS Core Product - Europe
Software Engineer, iOS Core Product - Europe
Speechify
Spain 1 month ago
- Mobile Developer (iOS, Android and LLM Applications) - Fixed Term Contract - Barcelona
Mobile Developer (iOS, Android and LLM Applications) - Fixed Term Contract - Barcelona
European Tech Recruit
Barcelona, Catalonia, Spain
Be an early applicant
2 weeks ago
- Desarrollador/a iOS - Front
Desarrollador/a iOS - Front
Vermont Solutions
Las Rozas de Madrid, Community of Madrid, Spain
Be an early applicant
1 week ago
- Mid iOS Engineer | 100% Remote
Mid iOS Engineer | 100% Remote
UST España & Latam
Spain 1 month ago
- Mobile Software Engineer (x/f/m)
Mobile Software Engineer (x/f/m)
Alan
Almería, Andalusia, Spain
Be an early applicant
1 day ago
- Mobile Software Engineer (x/f/m)
Mobile Software Engineer (x/f/m)
Alan
Barcelona, Catalonia, Spain
Be an early applicant
1 day ago
- SENIOR IOS Developer- 100% remoto
SENIOR IOS Developer- 100% remoto
SlashMobility
Madrid, Community of Madrid, Spain 1 year ago
Desarrollador iOS
MC Engineering
Barcelona, Catalonia, Spain 1 year ago
Mobile Engineer
Deel
Spain
Be an early applicant
1 week ago
- Mobile Tech Lead (Full remote within Spain)
Mobile Tech Lead (Full remote within Spain)
Leadtech Group
Spain
Be an early applicant
2 weeks ago
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
Plexus Tech
Madrid, Community of Madrid, Spain 8 months ago
iOS Mobile Developer
Second Window
Barcelona, Catalonia, Spain 1 month ago
- iOS Developer 100% Remoto
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
Senior iOS Engineer
TravelPerk
Barcelona, Catalonia, Spain 5 months ago
- iOS Software Engineer - 100% Remote
iOS Software Engineer - 100% Remote
UST
Madrid, Community of Madrid, Spain 2 weeks ago
- Senior iOS Engineer, The Bump
Senior iOS Engineer, The Bump
The Knot Worldwide
Barcelona, Catalonia, Spain
Be an early applicant
2 weeks ago
- Mobile Developer (Fixed-term contract)
Mobile Developer (Fixed-term contract)
Multiverse Computing
Madrid, Community of Madrid, Spain
Be an early applicant
4 days ago
- 2- Desarrollador/a Movilidad iOS & Android
2- Desarrollador/a Movilidad iOS & Android
nubeTI digital
Madrid, Community of Madrid, Spain 9 months ago
- Senior Mobile Engineer (Android)
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
Plexus Tech
Madrid, Community of Madrid, Spain 6 months ago
- Senior Software Engineer, iOS
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
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
Benefits
Why 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
Referrals increase your chances of interviewing at Mindrift by 2x
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