About the job
About Us
At Speak, we are on a mission to transform the way individuals learn languages.
Learning a new language can be life-changing, unlocking opportunities to explore new cultures, advance careers, and build connections. With two billion people globally striving to master a language, the most effective method—one-on-one tutoring—remains elusive and has not significantly evolved over the years. Speak is pioneering an AI-powered, human-level tutoring experience that fits in your pocket: a conversation-first platform designed to empower learners to practice speaking, receive immediate feedback, and progress through meticulously crafted lessons. This approach offers a comprehensive journey from novice to proficient speaker across various languages.
Launched in South Korea in 2019, Speak has rapidly ascended to become the leading language learning application, now catering to learners in multiple markets and over 15 languages. As one of the foremost AI enterprises globally, we have secured over $150 million in venture funding from prestigious investors such as OpenAI, Accel, Founders Fund, Khosla Ventures, and others, supported by a diverse team distributed across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.
About This Role
As a Senior iOS Engineer within Speak’s engineering team, you will play a crucial role in enhancing our content delivery, conducting A/B tests on monetization features, and supporting the launch of new markets and languages. Your collaboration with backend engineers and our Product and Design partners will be essential as you work to deliver product features to millions of users.
Key Responsibilities
Enhance the “freemium” experience to boost conversion rates
Aid in the introduction of new markets and languages
Implement various paywall experiments, including pricing, design modifications, deferred paywalls, and promotional offers
Refine our speech-to-text system
Advance our audio and video streaming technologies
Qualifications
A minimum of 5 years of professional experience as a Mobile Engineer, ideally within a dynamic startup atmosphere
Preferred: Experience working on an app with over 1 million users
Expertise in Swift, with a solid grasp of prevalent mobile architectures, including MVC/MVVM
Preferred: Familiarity with SwiftUI
Preferred: Experience in mobile streaming technologies

