Senior iOS Engineer

Dolby Laboratories; City Of London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading technology company in London seeks an experienced Senior iOS Developer to enhance cutting-edge video streaming products. You will lead the development of the OptiView iOS SDK and ensure high-quality video playback across Apple devices. Ideal candidates have over 5 years of iOS development experience and a strong foundation in Swift. This role offers an innovative and flexible work environment.

Benefits

Flexible work approach

Collegial culture

Challenging projects

Excellent compensation and benefits

Qualifications

• 5+ years of professional experience in iOS application development.
• Proven software development experience with iOS SDKs.
• Experience with video streaming technologies is highly desirable.

Responsibilities

• Design and build advanced applications for iOS and tvOS platforms.
• Lead development and maintenance of the OptiView iOS SDK.
• Optimize video streaming protocols across Apple devices.

Skills

Swift

Objective-C

Problem-solving

Communication skills

Education

Bachelor's degree in Computer Science or related field

Tools

Git

Job description

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) andOptiView 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 experience with iOS SDKs
• Experience with video streaming technologies is highly desirable

Technical Knowledge

• Strong proficiency in Swift (and Objective-C) programming languages
• Deep understanding of the iOS platform, including UIKit, AVFoundation, and related frameworks
• Experience with video playback technologies, especially streaming protocols, like HLS (and MPEG-DASH)
• Solid understanding of RESTful APIs and experience integrating third-party libraries
• Familiarity with version control systems, particularly Git

Skills and Capabilities

• Strong problem-solving skills and attention to detail
• Excellent communication abilities and ability to collaborate effectively with cross-functional teams
• Experience mentoring junior developers and providing technical leadership
• Understanding of the full mobile development lifecycle
• Ability to work in an agile development environment

Preferred Experience

• Previous work with media playback and streaming technologies
• Experience with modular SDK development and library integration
• Knowledge of DRM technologies and video advertising standards (VAST, VPAID)
• Contribution to open-source projects
• Experience with continuous integration and deployment pipelines for mobile applications
• Experience with tvOS, AirPlay, and Chromecast integration