Join Our Team as an iOS EngineerAt Speak, we are on a mission to transform language learning for everyone.Language learning can significantly enhance lives by connecting individuals to new cultures, career opportunities, and communities. With over two billion people globally striving to learn a language, the traditional approach of one-on-one tutoring remains challenging to access at scale and has seen little innovation in recent years. Speak aims to change this by developing a human-level, AI-driven tutor that fits in your pocket—a conversation-first platform that empowers learners to engage in dialogue, receive real-time feedback, and progress through meticulously crafted lessons. Our goal is to provide a complete journey from novice to confident speaker in multiple languages.Launched in South Korea in 2019, Speak has quickly established itself as the leading language learning app, now catering to learners across various markets and offering support for over 15 languages. As a premier AI company, we have secured over $150 million in venture funding from notable investors, including OpenAI, Accel, Founders Fund, and Khosla Ventures. Our diverse team is spread across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.About the RoleAs a Mobile iOS Engineer on Speak’s engineering team, you'll play a pivotal role in enhancing our content delivery, conducting A/B testing on monetization features, and facilitating the launch of new markets and languages. You'll work closely with backend engineers, as well as our Product and Design partners, and be responsible for deploying product features to millions of users.Your ResponsibilitiesEnhance the “freemium” experience to boost user conversions.Assist in the launch of new markets and languages.Implement various paywall tests, including pricing strategies, design modifications, delayed paywalls, and special offers.Refine our speech-to-text capabilities.Enhance our audio and video streaming functionalities.Your Qualifications3+ years of experience in mobile engineering, ideally within a dynamic startup environment.Proficiency in Swift, with a solid grasp of mobile architectures such as MVC and MVVM.Bonus: Experience with SwiftUI and mobile streaming technologies.

About UsAt 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 RoleAs 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 ResponsibilitiesEnhance the “freemium” experience to boost conversion ratesAid in the introduction of new markets and languagesImplement various paywall experiments, including pricing, design modifications, deferred paywalls, and promotional offersRefine our speech-to-text systemAdvance our audio and video streaming technologiesQualificationsA minimum of 5 years of professional experience as a Mobile Engineer, ideally within a dynamic startup atmospherePreferred: Experience working on an app with over 1 million usersExpertise in Swift, with a solid grasp of prevalent mobile architectures, including MVC/MVVMPreferred: Familiarity with SwiftUIPreferred: Experience in mobile streaming technologies

About UsOur mission is to transform language learning.Language learning can profoundly impact lives by connecting individuals to new cultures, careers, and communities. With two billion people worldwide striving to learn a language, the most effective method (one-on-one tutoring) remains hard to access at scale and has not seen significant innovation in decades. Speak is pioneering a human-level, AI-driven tutor that fits in your pocket: a conversational-first platform that enables learners to speak, receive immediate feedback, and advance through thoughtfully crafted lessons. The outcome is a comprehensive journey from novice to proficient speaker across various languages.Since our launch in South Korea in 2019, Speak has ascended to the top of the language learning app market, catering to learners across numerous regions and supporting over 15 languages. Backed by more than $150 million in venture funding from notable investors like OpenAI, Accel, Founders Fund, and Khosla Ventures, we maintain a distributed team across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.About This RoleIn the role of AI Product Engineer at Speak, you will be instrumental in shaping the future of language learning and establishing the most efficient path to fluency. Your key responsibility will be to develop cutting-edge product experiences powered by Language Learning Models (LLMs) and deliver these innovations to millions of users.Your work will encompass the entire stack and more, including model evaluation, prompt testing, and the development and enhancement of various product features such as conversational onboarding, lesson experiences, grammatical assessment, and personalized learning journeys.We constantly strive to expand the capabilities of LLMs to provide an extraordinary and unmatched language learning experience for users in over 30 countries worldwide.Your ResponsibilitiesDesigning and launching LLM-powered language learning products across the full stack, while improving the quality and efficacy of existing AI-driven features at Speak.Collaborating cross-functionally with Engineering teams, Applied ML, Product, Design, and Content.Enhancing our process for building LLM applications, including best practices for prompting, experimentation/evaluation, LLM operations, and performance measurement.Scaling current product features to serve a broader user base and additional languages.

Join Atlas as an iOS Engineer and play a crucial role in designing innovative mobile applications that enhance user experiences. You will collaborate with cross-functional teams to deliver high-quality software solutions, ensuring seamless integration with backend services. Your expertise will contribute to the development of cutting-edge features that delight our users.As a member of our dynamic team, you will have the opportunity to implement best practices in mobile development, optimize app performance, and stay up-to-date with the latest industry trends. If you are passionate about mobile technology and eager to make an impact, we want to hear from you!

About UsTransforming Language LearningAt Speak, we are on a mission to revolutionize language learning by making it accessible and effective for everyone. With language learning being a gateway to new cultures and career opportunities, we've developed an AI-powered tutor that offers a unique conversation-first experience. Learners get to speak, receive instant feedback, and progress through meticulously crafted lessons, ensuring a seamless journey from beginner to fluent speaker.Since our inception in South Korea in 2019, Speak has rapidly grown to become the leading language learning app, catering to learners in over 15 languages and various markets. With backing from prominent investors such as OpenAI and Accel, we pride ourselves on being a top player in the AI technology sector, with a diverse team spread across major cities including San Francisco, Seoul, and Tokyo.About This RoleWe are seeking a talented Senior Android Engineer to join our dynamic engineering team. In this role, you will contribute to enhancing our content delivery, executing A/B tests for monetization features, and facilitating the launch of new markets and languages. Your collaboration with backend engineers and cross-functional partners in Product and Design will be crucial as you deliver impactful product features to millions of users.Key ResponsibilitiesDevelop and optimize growth loops including referrals and in-app shareable content.Enhance user acquisition strategies and boost user retention rates.Contribute to pricing strategies and packaging solutions.Support the launch of new markets and language offerings.Refine our text-to-speech capabilities.Improve audio and video streaming systems for a better user experience.Qualifications5+ years of experience as a Mobile Engineer, ideally within a fast-paced startup environment.Strong proficiency in Kotlin, with a deep understanding of mobile architectures like MVC and MVVM.Bonus: Experience with Jetpack Compose and mobile streaming technologies.

About UsOur mission is to revolutionize language learning.Learning a new language can be transformative, unlocking opportunities to explore diverse cultures, career paths, and communities. With two billion people worldwide striving to learn a language, the most effective method—personalized one-on-one tutoring—remains difficult to access at scale and has seen little innovation for decades. Speak is pioneering an AI-driven tutor that fits in your pocket, offering a conversation-first approach that enables learners to engage in dialogue, receive immediate feedback, and progress through thoughtfully crafted lessons. This leads to a comprehensive journey from novice to confident speaker across numerous languages.Since our launch in South Korea in 2019, Speak has emerged as the leading language learning app, expanding our reach to learners across various markets and 15+ languages. As one of the foremost AI companies globally, we have secured over $150 million in venture funding from prominent investors including OpenAI, Accel, Founders Fund, and Khosla Ventures, with a diverse team distributed across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.About This RoleAs an Android Engineer on Speak’s engineering team, you will play a pivotal role in enhancing our content delivery, conducting A/B tests on monetization strategies, and supporting the launch of new markets and languages. You will collaborate closely with backend engineers and our Product and Design partners, delivering product features to millions of users.Your ResponsibilitiesDevelop growth mechanisms, including referral systems and in-app sharing features.Enhance new user acquisition and retention strategies.Work on pricing and packaging strategies.Assist in launching new markets and languages.Refine our text-to-speech capabilities.Improve our audio and video streaming systems.QualificationsA minimum of 3 years of industry experience as a Mobile Engineer, ideally in a dynamic startup environment.Bonus: Experience working on an app that has reached 1 million users.Strong proficiency in Kotlin, with an in-depth understanding of mobile architectures such as MVC/MVVM.Bonus: Experience with Jetpack Compose.Bonus: Familiarity with mobile streaming technologies.

Join 360IT Professionals as an iOS Engineer, where you will play a crucial role in developing innovative mobile applications for our diverse clientele. You will collaborate closely with cross-functional teams to design, implement, and maintain high-quality software solutions that enhance user experience.

About GustoAt Gusto, we are dedicated to empowering the small business economy. Our services simplify complex tasks like payroll, health insurance, 401(k)s, and HR, allowing business owners to concentrate on their passion and customers. With teams in Denver, San Francisco, and New York, we proudly support over 400,000 small businesses nationwide, committed to creating a workplace that reflects and honors the customers we serve. Discover more about our Total Rewards philosophy.About the Role:We are seeking passionate Mobile iOS Engineers who are eager to craft exceptional user experiences. In this role, you will develop features that are not only functional but also intuitive and delightful for our users. You will take charge of scaling our shared services while staying current with the latest iOS advancements. Collaborating with teams from Product Management, Identity, Security, System Design, and Infrastructure, you will build solutions that make a significant impact. If you are enthusiastic about creating elegant, scalable applications and want to be part of a supportive, innovative mobile team, we would love to connect with you!About the Team:At Gusto, we are at a transformative stage with over 1M+ monthly active users and the recent launch of our employer experiences on mobile. Our mission is to address the real challenges faced by small business owners and their employees, with mobile technology being crucial for delivering effective solutions. As a member of our mobile team, you will be at the forefront of this change, collaborating with talented engineers and designers passionate about providing a seamless mobile experience. Together, we aim to empower small business owners and their teams to succeed. If you are ready to make a difference in the mobile landscape at Gusto, we want you on our team!Here’s what you’ll do day-to-day:Architect, build, test, and enhance Gusto’s native iOS app, along with supporting mobile web views that elevate user experience.Develop, iterate, and refine product features that integrate core business functions, work tools, value-added services, and financial products.Collaborate closely with our product management, design, and partner teams...

Join Perplexity AI as a skilled iOS Engineer and play a pivotal role in transforming the way users navigate the web. You'll be instrumental in developing and enhancing Comet, our innovative browser designed specifically for iOS.We seek a candidate with exceptional programming expertise, a keen interest in artificial intelligence and large language models, and a dedication to providing an outstanding user experience supported by a sophisticated user interface.Key ResponsibilitiesCraft a high-performance native iOS application that will be enjoyed by millions globally.Maintain a rigorous standard of quality in both user and developer experiences.Collaborate closely with design teams to create fast, intuitive user interfaces.Engage with data science and machine learning teams to evaluate and enhance the overall user journey.Partner with infrastructure and QA teams to streamline deployment processes, including testing, release, and monitoring.QualificationsA minimum of 5 years of industry experience.Solid understanding of Swift and proven experience with a modern iOS tech stack, including SwiftUI (iOS 16+) and UIKit.A passion for creating beautiful user interfaces, excellent user experiences, and writing reusable, testable code.Strong grasp of low-level details and the ability to profile and optimize app performance.Comfortable working in a small, agile team, demonstrating ownership and initiative.A genuine enthusiasm for iOS development and exploring the latest advancements in iOS and iPadOS.(Bonus) Experience in browser development is a plus.

About UsOur mission is to revolutionize the way individuals learn languages.Mastering a language can transform lives by opening doors to diverse cultures, professions, and communities. With two billion people worldwide striving to learn a new language, access to effective one-on-one tutoring remains a challenge and has seen little innovation over the decades. Speak is creating an AI-enhanced tutor that fits in your pocket, delivering a conversation-first approach that enables learners to practice speaking, receive instant feedback, and progress through thoughtfully crafted lessons. Our platform provides a comprehensive journey from novice to confident speaker in multiple languages.Launched in South Korea in 2019, Speak has emerged as the leading language learning app in the region, now catering to learners in various markets across over 15 languages. As one of the foremost AI companies globally, we have successfully secured over $150 million in venture capital from notable investors including OpenAI, Accel, Founders Fund, and Khosla Ventures. Our team operates remotely across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.About This RoleWe are in search of a passionate Senior Full-stack Engineer who thrives in a versatile development environment. While your initial projects will primarily focus on frontend development, we anticipate a seamless transition into backend tasks, contributing to the creation of innovative AI-driven product experiences.The ideal candidate will possess experience collaborating closely with product management, design, and machine learning teams, along with a proven track record in developing refined consumer applications. This position is pivotal in shaping our latest products centered on programmatic, conversation-driven language learning, making you a key player in the future trajectory of our company.Your ResponsibilitiesDesigning groundbreaking AI-powered product experiences and user interfaces for the webManaging the complete development lifecycle of features, from initial concept through to productionRapidly writing code, deploying frequently, and significantly impacting our business by aiding in content scalabilityYour Qualifications4+ years of experience in creating highly polished web-based product experiences, with extensive proficiency in ReactAbility to balance quality execution with agile, scrappy development when necessaryA passion for quickly delivering results and contributing to the growth of the company

About CasaAt Casa, we understand that homes are not just properties; they are cherished assets that deserve a seamless ownership experience. Our mission is to redefine homeownership by creating a cutting-edge, personal property management platform that transforms the way individuals manage their single-family homes.Founded by pioneers from Uber, CloudKitchens, and Levels, Casa is backed by a remarkable group of prominent VC firms and angel investors. We are proud to be operational with a community of paying members.About the RoleWe are on the lookout for a founding Senior iOS Engineer to join our dynamic team. In this pivotal role, you will design, develop, and launch top-tier mobile applications that provide immense value to our users.You will collaborate closely with our founders, fellow engineers, and designers to create innovative products that resonate with our members. Your contributions will not only shape our core systems and products but also play a significant role in establishing our team culture.Your ResponsibilitiesLead the architecture and development of our iOS applications, ensuring a flawless user experience for homeowners and vendors alike.Prototype new features and applications swiftly to adapt to user feedback and needs.Work closely with designers to craft intuitive and visually appealing user interfaces.Guarantee the performance, quality, and responsiveness of our applications through ongoing testing and refinement.Stay updated with the latest advancements in iOS development, incorporating new technologies and methodologies as appropriate.Mentor a growing engineering team by reviewing peers' code and designs, providing constructive feedback to uphold high standards.Your ProfileExtensive experience: You possess over 5 years of iOS development experience, with a proven track record in building and launching mobile applications, showcasing deep expertise in Swift and Apple SDKs/APIs.Design-oriented: You are passionate about creating exceptional user experiences and enjoy working with designers to deliver aesthetically pleasing and functional applications.Excited about startups: As a founding engineer in an early-stage startup, you understand that many systems and structures are yet to be established, and you are eager to take an active role in building and shaping them.

About UsAt Speak, we are on a mission to transform the way individuals engage with language learning.Learning a new language has the power to transform lives, unlocking opportunities in diverse cultures, careers, and communities. With two billion people globally seeking to learn a language, the most effective method—one-on-one tutoring—remains difficult to access on a large scale and has seen little innovation for decades. Speak is pioneering an AI-driven, human-level tutoring experience that fits in your pocket: a conversation-first platform enabling learners to practice speaking, receive immediate feedback, and advance through meticulously crafted lessons. Our approach provides a comprehensive journey from novice to confident speaker in multiple languages.Launched in South Korea in 2019, Speak has quickly risen to become the leading language learning application in the region, catering to learners across various markets in over 15 languages. As one of the foremost AI companies globally, we have secured over $150 million in venture capital from prominent investors such as OpenAI, Accel, Founders Fund, and Khosla Ventures, with a distributed team operating across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.About This RoleAs a Platform Engineer at Speak, you will play a pivotal role in enhancing the reliability and resilience of our systems that support the global language learning experience. You will lead initiatives to scale our infrastructure, fortify our platform, and ensure our services are fast, accessible, and dependable for millions of users worldwide.Your work will span our entire tech stack—from Kubernetes on GCP to our Node.js APIs, Postgres, and Redis—creating robust infrastructure and operational tools. You will take charge of incident response, observability, and SLOs, fostering a culture of reliability throughout the engineering organization.With Speak's rapid growth, we are continuously pushing our systems to their limits. This is a unique opportunity to influence the future of our platform as we scale to accommodate the next tenfold increase in users.

Join Sonsoft Inc. as an iOS Developer, where you'll be a vital part of our innovative team in San Francisco. You will develop cutting-edge applications for the iOS platform, ensuring optimal performance, quality, and responsiveness of applications.

Join Perplexity AI, a pioneering company in the field of AI-driven search, as a Senior iOS Engineer. You will play a crucial role in transforming how users interact with the internet by developing innovative features and enhancing the performance of our iOS application.We are seeking a talented individual with a solid programming background, enthusiasm for search technologies and large language models, and a strong commitment to crafting exceptional user experiences complemented by an elegant user interface.

About UsAt Speak, we're on a mission to revolutionize language learning.Learning a language can transform lives, unlocking new cultures, careers, and communities. With two billion people globally eager to learn a language, traditional one-on-one tutoring remains elusive and has seen little innovation in decades. Speak is creating an AI-powered, human-level tutor that fits in your pocket: a conversation-focused experience that encourages learners to speak, receive immediate feedback, and progress through thoughtfully crafted lessons. This leads to a comprehensive journey from beginner to confident speaker in multiple languages.Originally launched in South Korea in 2019, Speak has quickly risen to become the leading language learning app, now serving learners across various markets and offering over 15 languages. As one of the world’s top AI companies, we have raised over $150 million in funding from prestigious investors like OpenAI, Accel, Founders Fund, and Khosla Ventures, with a diverse team located in San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.About This RoleAs a Senior Analytics Engineer at Speak, you will be instrumental in shaping the future of digital language education while advancing our mission of making language proficiency attainable for millions around the globe.Your primary focus will be to empower every team member to leverage data for informed decision-making. Your responsibilities will include establishing reliable datasets, defining key performance metrics, and managing the analytical tools utilized across the organization. You will collaborate closely with product, engineering, and analytics teams to ensure our platform, driven by state-of-the-art technology, is robust and provides actionable insights to improve user engagement and learning outcomes.What You'll Be DoingConstruct and Optimize Data Infrastructure: Oversee and implement scalable data pipelines using Airflow for orchestration and dbt for transformation to guarantee efficient data flow and processing.Facilitate Data-Driven Decision-Making: Collaborate with cross-functional teams to develop data models and metrics that support critical business analyses.Empower Stakeholders: Continuously assess and enhance our tool stack to ensure that accessing data-driven answers is as seamless as possible.Collaboration and Systems Thinking: As a key member of our team, you will partner with product managers, analysts, and fellow engineers to design data solutions and processes that drive results.

About UsOur mission is to revolutionize language learning.Learning a new language can transform lives by providing access to diverse cultures, career opportunities, and communities. With two billion people globally striving to learn languages, the most effective method—one-on-one tutoring—remains difficult to access at scale and has not evolved significantly over the years. Speak is developing an AI-powered, human-like tutor that fits in your pocket, offering a conversation-first approach that allows learners to practice speaking, receive immediate feedback, and progress through thoughtfully designed lessons. This results in a comprehensive journey from novice to confident speaker across multiple languages.Since our launch in South Korea in 2019, Speak has emerged as the leading language learning app, now available to learners in various markets and over 15 languages. As one of the foremost AI companies globally, we have secured over $150 million in venture capital from notable investors such as OpenAI, Accel, Founders Fund, and Khosla Ventures, with a diverse team spread across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.About This RoleWe are seeking a Senior Backend Engineer, with full-stack capabilities, to help create innovative AI-driven product experiences. The ideal candidate should have experience collaborating closely with product, design, and machine learning teams, alongside a proven track record in developing polished consumer applications. This role is pivotal in shaping our latest products focused on programmatic, conversational language learning and will significantly impact the future direction of our company.Your ResponsibilitiesCrafting innovative AI-driven product experiences and user interfaces for the web.Full-stack engineering with a primary focus on designing scalable backend systems.Troubleshooting complex streaming challenges.Taking ownership of the complete development cycle of features from ideation to production.Writing code efficiently, shipping frequently, and making a substantial impact on our business by facilitating the scaling of our content.Your Profile5+ years of industry experience as a Backend Engineer, ideally within a fast-paced startup environment.Bonus: Experience on an app that has reached over 1 million users.Exceptional problem-solving and communication skills, along with the ability to work effectively in a collaborative environment.

Join our innovative team as an iOS Developer at Sonsoft Inc. in San Francisco, where you will have the opportunity to create dynamic and user-friendly applications for iOS devices. You will collaborate with cross-functional teams to design, develop, and enhance mobile applications while ensuring a seamless user experience.

Join Rylo, a cutting-edge camera technology company that revolutionizes video capturing with unparalleled stabilization software and a user-friendly smartphone app. Our innovative solution is developed by a talented team of former engineers from Instagram and Apple, ensuring the highest quality in video production. With Rylo, capturing stunning videos is as simple as pressing a button — no more worries about framing or stabilization.See Rylo in actionWe are seeking a skilled iOS Engineer with extensive experience in developing user interfaces using the iOS SDK. The ideal candidate will possess strong problem-solving abilities, exceptional organizational skills, and a detail-oriented mindset. If you are eager to contribute to a passionate team dedicated to enhancing photography and videography experiences, we would love to hear from you!

Join our dynamic team at StemXpert1 as an iOS Developer where you will play a crucial role in creating innovative applications for Apple's iOS platform. If you are passionate about mobile technology and eager to enhance user experiences, we want to hear from you!

Join our dynamic team at Sonsoft Inc. as an iOS Developer! In this role, you will be responsible for designing and developing innovative mobile applications for iOS platforms. Your expertise will help us enhance our product offerings and improve user experience.