Mid-level iOS Engineer

iOS Engineer

Location: Barcelona | Type: Full-time

We're hiring—and we're doing it the Frekuent way. In a world where technology moves fast, we move with purpose. If you're ready to make your next big move and create something meaningful, you're in the right place.

Being part of our dream team isn't just about a job, it's about enjoying the frekuency. If you're ready to be part of this journey and grow together, join us and make a real impact.

Get to know us

Frekuent is a fast-growing company redefining the payment experience, helping businesses turn one-time buyers into lifetime clients through unique loyalty boosters. We believe that the secret to more sales is giving customers less: cashless, contactless and effortless payment solutions that transform the way businesses operate. With Frekuent, transactions happen in seconds, keeping customers coming back for seconds.

Want to know more? Check us out at www.frekuent.com.

What you'll do

At Frekuent, we’re not just building payment solutions — we’re creating seamless experiences that move businesses and customers forward.As our iOS Engineer, you’ll be at the heart of crafting elegant, high-performance mobile experiences that our users love. This role is all about taking ownership of the development lifecycle and pushing the boundaries of what’s possible on iOS. You’ll have the opportunity to drive impactful solutions from concept to release, shaping the future of our mobile platform.

What you'll be doing:

• Design and develop advanced applications for the iOS platform using Swift.
• Ensure the best possible performance, quality, and responsiveness of the application.
• Strong understanding of clean architecture principles and design patterns (e.g., dependency injection) to ensure modular, testable, and scalable codebases.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Conduct unit testing, integration testing, and UI testing to ensure application stability and performance.
• Use version control systems like Git to manage and collaborate on code by performing code reviews and contribute to improving team practices.
• Follow Apple’s Human Interface Guidelines to create intuitive and visually appealing interfaces.
• Apply architectural patterns such as MVP, MVVM, or VIPER to ensure a scalable and maintainable codebase.
• Integrate RESTful APIs to connect iOS applications to back-end services.
• Handle data interchange formats like JSON efficiently.
• Maintain comprehensive documentation of the code, modules, and development processes.
• Stay up-to-date with the latest iOS development trends, tools, and technologies.
• Implement security best practices to protect user data and privacy.

Who we’re looking for

• Bachelor’s degree in Computer Engineering, Computer Science, or a related field.
• At least 3+ years of working experience in iOS application development.
• Fluent in Spanish and English
• Proficient in Swift for iOS development.
• Solid understanding and hands-on experience in applying design and architectural patterns.
• Proficient in using Xcode and other iOS development tools.
• Experience with version control systems like Git.
• Good knowledge of performance optimization and memory management.
• Hands-on experience in testing, debugging, and troubleshooting iOS applications.
• Familiarity with CI/CD pipelines to automate the building, testing, and deployment processes of iOS apps.
• Creative and analytical mindset with a practical approach to problem-solving.
• Appreciates the value of agile methodologies and uses data to support decisions and improvements.
• Strong execution and problem-solving skills — you’re not afraid to tackle challenges head-on.
• Takes accountability and consistently owns the outcome throughout the process.
• Embraces feedback as an opportunity for growth.
• Naturally proactive, always looking for ways to move projects forward.
• Comfortable speaking up and proposing bold, creative ideas that add value.

What’s in it for you

🌍 A hybrid model that works – Enjoy the energy of our office 3 days a week and the flexibility of working remotely the other 2.

⏰ Flexible schedule – because we trust you to own your time and your outcomes.

🍽️ Meal vouchers – Enjoy a monthly support of meal vouchers to make your workdays tastier.

🩺 Health & wellness – private health insurance and discounted gym memberships to keep both body and mind in top shape.

📚 Learning & development – English classes and role-specific training, because your growth is part of our journey.

🌴 23 days of paid time off – plus local holidays, because great ideas need space to rest.

🚀 A dynamic, fast-growing environment – where each day is unique and every idea counts.

🤝 A collaborative mindset – surrounded by people who genuinely enjoy building together.

🎉 Regular afterwork & teambuilding events – activities to relax, connect, and strengthen team bonds.

Why you'll love it here

At Frekuent, we believe our success is built on our people. We’re a team of non-conformists, committed and solution-driven individuals, who know that infinity is the limit when it comes to innovation. With plenty of room for personal and professional development, we value creativity, ownership, and collaboration — all driven by a strong culture that fuels our growth.

Be authentic isn’t just a value, it’s our belief that embracing who we are and appreciating diverse backgrounds, experiences and opinions is what truly enriches us.

If you're ready to jump into an exciting environment and make a real difference, this is the place for you.

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