Senior iOS Engineer (Remote)

Qustodio (part of the Qoria family); Madrid; A distancia; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A leading cybersecurity firm in Madrid is looking for a Senior iOS Engineer to develop security-focused applications affecting millions globally. This role requires 5+ years in iOS development, expertise in Swift, and a strong focus on digital safety. Candidates will engage in R&D to enhance app performance, with flexible working hours and home office options available. Join a fast-growing team committed to improving online safety.

Servicios

Private health insurance

In-house training

Team building events

23 days of holidays

Formación

• 5+ years of experience in iOS development.
• Expertise in Swift and modern iOS frameworks.
• Passion for networking and security problems.

Responsabilidades

• Develop security-focused iOS applications.
• Tackle complex technical challenges related to iOS.
• Own end-to-end iOS development.
• Drive R&D initiatives for app performance.

Conocimientos

iOS Development

Swift

Network Protocols

Clean Architecture

Security-focused Applications

CI/CD Pipelines

RESTful APIs

English Fluency

Herramientas

Xcode

Instruments

Descripción del empleo

Founded in 2012 by cyber-security experts Eduardo Cruz, Josep Gaspar, and Josh Gabel,

Qustodio

is the global leader in online safety and digital wellbeing for families. In 2022, Qustodio became part of the

Qoria

group, protecting every child's digital journey through a world-class collaboration between schools, parents, and educators in cyber safety. Qoria's mission is to support families and schools to live and navigate smarter in an increasingly connected world. Together, we help millions of families and educators across the globe protect children from online harm, while promoting healthy digital habits and awareness.

We are seeking a passionate

Senior iOS Engineer

, skilled in building secure and high-performance applications, to join our dynamic team. As part of our mission to enhance digital safety, you will help shape our next-generation security services for millions of users worldwide.

Develop top-tier security-focused iOS applications to help users protect their mobile devices.

Tackle complex technical challenges related to network protocols, MDM integrations, and advanced iOS API interactions.

Own end-to-end iOS development across the entire stack, from UI / UX to backend integration.

Stay up-to-date with the latest iOS trends, tools, and industry best practices.

Drive R&D initiatives to push the boundaries of digital safety and mobile app performance.

5+ years of experience in iOS development, including building and releasing security-focused applications.

~ Expertise in Swift and modern iOS frameworks (SwiftUI, Combine, CoreData, CloudKit).

~ Expertise in Clean Architecture and software design patterns to build scalable and maintainable apps.

~ Expertise in using tools to measure and optimize code performance (e.g., Instruments, Xcode Profiler).

~ Passion for networking and security problems.

~ Familiarity with CI / CD pipelines, Fastlane, and automation tools.

~ Knowledge of RESTful APIs and integrating iOS apps with cloud services.

~ Expertise in developing various types of tests, including unit tests, functional tests, and automated tests, as required.

~ Ability to document technical decisions clearly, including Architectural Decision Records (ADRs) and non-technical documentation for internal and external stakeholders.

~ Experience for shipping our software to a high number of users.

~ Result oriented person with good communication skills.

~ Fluency in English, the company’s official language

Experience with Backend development.

Flexible working hours - and there are possibilities to work from home.

~ Interesting challenges in a fast-growing technology company for you to grind your skills.

Benefits

• Private health insurance.
• In-house training and team building events.
• A modern and fully equipped office headquarters in Barcelona city center.
• 23 days of holidays per year. At this stage we are only accepting applications from those with full working rights.

Shortlisting will commence immediately.