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Dolby Laboratories

Senior iOS Engineer

Hybrid

Leuven, Belgium

Senior

Full Time

23-02-2026

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Skills

Leadership Swift Quality Assurance Architecture react Software Development Analytics Android

Job Specifications

Join the leader in entertainment innovation and help us design the future. At Dolby, science meets art, and high tech means more than computer code. As a member of the Dolby team, you’ll see and hear the results of your work everywhere, from movie theaters to smartphones. We continue to revolutionize how people create, deliver, and enjoy entertainment worldwide. To do that, we need the absolute best talent. We’re big enough to give you all the resources you need, and small enough so you can make a real difference and earn recognition for your work. We offer a collegial culture, challenging projects, and excellent compensation and benefits, not to mention a Flex Work approach that is truly flexible to support where, when, and how you do your best work.

Dolby x THEO is seeking an experienced Senior iOS Developer to join our team and contribute to the development and enhancement of our flagship products, OptiView Player (formerly known as THEOplayer), OptiView Streaming (formerly known as THEOlive) and OptiView Ads (formerly known as THEOads). As a leader in video streaming technology, we're looking for talented individuals who can help us continue to deliver cutting-edge solutions that provide high-quality video experiences across platforms and devices.

Before diving into the details, here's what you need to know: We're offering an opportunity to work on a widely-used video player SDK that empowers publishers, telcos, and broadcasters worldwide. You'll be at the forefront of video streaming technology, working with modular features, adaptive playback, and cross-platform compatibility in a dynamic, innovation-focused environment.

About Dolby x THEO

Dolby x THEO is at the forefront of the rapidly evolving online video landscape, delivering high-quality video experiences across platforms and devices. Our flagship product, OptiView Player, is a universal video player solution that integrates seamlessly with every aspect of the video chain. We empower publishers, telecommunications companies, and broadcasters to deliver cutting-edge video experiences to their audiences globally. With a strong focus on user experience, performance, and cross-platform compatibility, we're constantly innovating and expanding our offerings through our dedicated Innovation Lab.

Our iOS SDK leverages Swift and Objective-C to provide robust, performant, and flexible video playback on iOS, iPadOS, and tvOS. The modular architecture of our SDK allows for flexible integration of features such as Google IMA, AirPlay, DRM, analytics, advertising, even our own OptiView products resulting in reduced application size and enhanced functionality based on customer needs.

Key Responsibilities

Application Development and Enhancement

Design and build advanced applications and SDK modules for the iOS and tvOS platforms using OptiView Player’s modular architecture
Lead the development and maintenance of the OptiView iOS SDK, focusing on core playback functionality and additional integration modules
Implement and optimize video streaming protocols including HLS, LL-HLS and HESP across various Apple devices
Develop and maintain cross-platform compatibility for iOS, iPadOS, and tvOS implementations

Technical Leadership

Provide technical leadership and mentorship to junior iOS developers on the team
Contribute to architectural decisions and code reviews to ensure a high-quality, scalable, and maintainable codebase
Collaborate with cross-functional teams including product designers, product owners, back-end and front-end developers to define, design, and ship new features
Challenge the status quo, don’t be afraid to ask “Why?” and take initiative on improvements
As part of the Mobile Chapter make an impact across multiple OptiView products by being the technical leader on Android

Quality Assurance and Optimization

Develop comprehensive unit tests for code robustness, including edge cases, usability, and general reliability
Work on bug fixing and performance optimization of our iOS applications and SDK
Implement and maintain integration with external data sources, third-party libraries, and APIs
Ensure optimal performance across a diverse range of Apple devices and iOS/tvOS versions

Innovation and Growth

Continuously discover, evaluate, and implement new technologies to maximize development efficiency
Take initiative by testing and implementing cutting-edge video and mobile technologies
Stay current with evolving mobile landscape trends, architectures, and emerging technologies
Participate in the modularization strategy of our SDK to ensure flexibility and reduced application size
Contribute to our cross-platform initiatives (Flutter and React Native) by making sure the native SDKs can serve the higher-level SDKs seamlessly

Qualifications

Education and Experience

Bachelor's degree in Computer Science, Engineering, or a related technical field
5+ years of professional experience in iOS application development
Proven software development experi

About the Company

We're the rain on the roof in a movie. The music flowing through your earbuds when you're at the gym. The footsteps lurking behind you in a video game. The voice of a colleague on a call who seems to be right next to you. The sight of a breathtakingly bright and vivid sunset on your TV. Making experiences come alive through technology is what we do. It's been our mission since day one. It began with our founder, Ray Dolby, a visionary scientist and inventor. As a young engineer and music lover, he was driven to improve the l... Know more