Développeur(se) SDK Sénior, Unity Ads (iOS) / Senior SDK Developer, Unity Ads (iOS)

Unity; Montreal (administrative region); On-site; CAD 80,000 - 100,000; Full time

Job summary

A leading technology company in Canada is hiring a Senior SDK Engineer to contribute to iOS SDK development, focusing on implementing reliable components and improving overall SDK stability. Candidates should possess over 6 years of iOS development experience and strong proficiency in Swift. Join us to create innovative solutions that drive advertising technology forward while ensuring privacy and compliance. The company promotes an inclusive work environment and encourages a wide range of applicants.

Benefits

Comprehensive benefits

Work-life balance support

Qualifications

• Over 6 years of professional iOS development experience.
• Strong proficiency in Swift is essential.
• Experience in performance-sensitive mobile systems required.

Responsibilities

• Act as a senior contributor on the iOS SDK, owning features end-to-end.
• Contribute to SDK architecture evolution.
• Implement reliable and performant SDK components.

Skills

iOS development experience

Strong proficiency in Swift

Experience with Ads SDKs

Familiarity with mobile systems

Knowledge of mobile security best practices

Job description

The opportunity

We are hiring a Senior SDK Engineer to act as a senior individual contributor on the iOS SDK, owning features or subsystems end-to-end from design through implementation and maintenance.

This is a chance to work at the exciting intersection of SDK development, machine learning, and data infrastructure. Join us to create innovative solutions that propel advertising technology forward, impacting billions of global ad experiences while ensuring privacy and compliance.

L’opportunité

Nous recherchons un(e) Développeur(se) SDK Sénior qui agira comme contributeur(rice) individuel(le) sénior sur le SDK iOS, en prenant en charge des fonctionnalités ou des sous-systèmes de bout en bout, de la conception à la mise en œuvre et à la maintenance.

Il s’agit d’une occasion de travailler à l’intersection stimulante du développement de SDK, de l’apprentissage automatique et de l’infrastructure de données. Joignez‑vous à nous pour créer des solutions innovantes qui font progresser la technologie publicitaire, influençant des milliards d’expériences publicitaires à l’échelle mondiale tout en assurant la protection des renseignements personnels et la conformité.

Ce que vous allez faire

• Agir comme contributeur(rice) individuel(le) sénior sur le SDK iOS, en prenant en charge des fonctionnalités ou des sous-systèmes de bout en bout, de la conception à la mise en œuvre et à la maintenance.
• Contribuer au développement et à l’évolution de l’architecture du SDK iOS dans le cadre des orientations et balises de la plateforme.
• Mettre en œuvre des composantes du SDK iOS fiables et performantes, en portant une attention particulière au multithreading, au cycle de vie et à la sécurité du fil d’exécution principal.
• Repérer et corriger les pannes en production, les problèmes de performance et les régressions, et contribuer à améliorer la stabilité globale du SDK.
• Améliorer de façon proactive le code existant, les abstractions et les pratiques de développement afin de renforcer la maintenabilité et la fiabilité.
• Exercer un jugement technique solide pour équilibrer justesse, performance et échéanciers de livraison.
• Collaborer étroitement avec les développeur(se)s Android, les équipes backend, les gestionnaires de produit et l’assurance qualité afin d’assurer un comportement cohérent du SDK et des intégrations sécuritaires.
• Participer aux revues de conception et de code, offrir une rétroaction réfléchie et contribuer à hausser la qualité du développement au sein de l’équipe.

What you'll be doing

• Act as a senior individual contributor on the iOS SDK, owning features or subsystems end-to-end from design through implementation and maintenance.
• Contribute to the development and evolution of the iOS SDK architecture within established platform direction and guardrails.
• Implement reliable, performant iOS SDK components with strong attention to threading, lifecycle, and main-thread safety.
• Identify and fix production crashes, performance issues, and regressions, and contribute to improving overall SDK stability.
• Proactively improve existing code, abstractions, and development practices to enhance maintainability and reliability.
• Exercise sound technical judgment in balancing correctness, performance, and delivery timelines.
• Collaborate closely with Android engineers, backend teams, product managers, and QA to ensure consistent SDK behavior and safe integrations.
• Participate in design and code reviews, providing thoughtful feedback and raising engineering quality across the team.

Ce que nous recherchons

• Posséder plus de 6 ans d’expérience professionnelle en développement iOS.
• Démontrer une forte maîtrise de Swift.
• Avoir de l’expérience avec des SDK publicitaires, des plateformes de monétisation ou d’autres systèmes mobiles sensibles à la performance.
• Connaître l’alignement de SDK multiplateformes et les contrats partagés entre iOS et Android.
• Avoir de l’expérience avec l’observabilité, le diagnostic et les processus de build and release d’un SDK.
• Maîtriser les bonnes pratiques en matière de sécurité et de protection de la vie privée sur mobile.
• Avoir travaillé dans de grands codebases matures, avec un accent sur la stabilité et la rétrocompatibilité.

What we're looking for

• 6+ years of professional iOS development experience.
• Strong proficiency in Swift
• Experience working on Ads SDKs, monetization platforms, or other performance-sensitive mobile systems.
• Familiarity with cross-platform SDK alignment and shared contracts between iOS and Android.
• Experience with SDK observability, diagnostics, and release processes.
• Knowledge of mobile security and privacy best practices.
• Experience operating in large, mature codebases with a focus on stability and backwards compatibility.

Additional information

• Relocation support is not available for this position
• Work visa/immigration sponsorship is not available for this position

Life at Unity

We offer a wide range of benefits designed to support employees' well‑being and work‑life balance. You can read more about them on our career page.

Unity [NYSE: U] is the leading platform to create and grow games and interactive experiences. Creators, ranging from game developers to artists, architects, automotive designers, infrastructure experts, filmmakers, and more, use Unity to bring their imaginations to life across multiple platforms, from mobile, PC and console, to spatial computing.

As of the third quarter of 2024, more than 70% of the top 1,000 mobile games were made with Unity, and in 2024, Made with Unity applications had an average of 3.7 billion downloads per month. For more information, please visit Unity.

Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation or any other protected status in accordance with applicable law. Our differences are strengths that enable us to support the growing and evolving needs of our customers, partners, and collaborators. If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out this form to let us know.

This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.

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