Senior iOS Developer

At CoStar Group, we believe in the art of creating perfect systems, much like constructing an ideal wall that effectively separates spaces. Our commitment to excellence is mirrored in our approach to software development, where we strive for functionality and user satisfaction. We are searching for an exceptional Senior iOS Developer who thrives on enhancing everyday experiences through code, embodying our vision of continuous improvement.As part of our engineering team, you will play a crucial role in delivering innovative features to millions, collaborating with product and design teams to translate ambitious ideas into practical solutions. Your insights and contributions will directly influence the evolution of our iOS codebase, ensuring that we build systems that foster connection and engagement.

Are you excited about creating the next big iOS app that could surpass Duolingo? Picture a world where studying transforms into a game—where SAT preparation is just as captivating as scrolling through TikTok or immersing yourself in a round of Geoguessr or Trivia Crack.Our mission is to make learning enjoyable, and we're dedicated to bringing this vision to life with a new app called Brainblast, designed specifically for schools.We are looking for YOU to join us in this adventure. We’re revolutionizing studying into a fun, engaging iPhone game. To explore our vision and learn more about the app, visit brainblast.com.About Us: Brainblast is a cutting-edge product by Smart Nonsense—a media company that has generated over 3 billion views worldwide, all while making learning engaging and fun.

We are seeking a talented iOS Developer to join our dynamic team. In this role, you will be responsible for designing and developing high-quality mobile applications for iOS devices. This is an exciting opportunity to work with cutting-edge technology and contribute to innovative projects that enhance user experiences.

Join Via as a Senior iOS Engineer and be a vital part of our mission to revolutionize transportation globally. You will focus on enhancing the rider experience, including booking, account management, and more. Additionally, you will play a key role in managing and advancing our multi-platform UI and automation testing infrastructure.

At Compass, we are dedicated to helping everyone find their place in the world. Since our inception in 2012, we have been at the forefront of revolutionizing the real estate sector with our comprehensive platform that enables residential real estate agents to provide outstanding service to both sellers and buyers.About the RoleThe Client Infrastructure team is the backbone of innovation, offering the essential platform, tools, and infrastructure that empower our iOS engineering teams to swiftly build, deploy, and deliver high-quality features. As a Senior Software Engineer within the iOS Platform sub-team, you will take on the role of a technical leader, driving the future of iOS development at Compass. You will cultivate a culture of technical excellence and developer empowerment among our team of over 40 iOS engineers.We seek a pragmatic visionary who can dissect complex iOS architectures to mitigate future technical debt, streamline extensive build systems, and implement scalable and resilient platform solutions that enhance productivity across the engineering team. In addition to execution, you will serve as a mentor and technical leader for aspiring iOS engineers, spearheading impactful and high-complexity platform initiatives. You will lead by example—innovating, teaching, and shaping the future of iOS engineering at Compass.This position necessitates profound expertise in iOS platforms coupled with strategic foresight to amplify the capabilities of our entire iOS organization through robust platform infrastructure.ResponsibilitiesSteer the technical roadmap for iOS platform infrastructure, promoting a leading developer experience and modern iOS development methodologies among 40+ iOS engineers.Design, scale, and maintain core capabilities of the iOS platform, which include build systems, testing infrastructures, API frameworks, and shared libraries, ensuring they meet the performance and quality demands of all iOS product teams.Oversee the iOS testing strategy and infrastructure, empowering teams to uphold rigorous testing standards via intelligent automation, AI-enhanced testing tools, and quality gates that enforce best practices.Lead initiatives for iOS platform modernization, including the Swift 6 migration strategy, adopting Kotlin Multi Platform, and reducing technical debt while advocating for coding standards and architectural patterns.Refine iOS build system infrastructure (Bazel) serving over 40 engineers, focusing on reducing build times, implementing caching strategies, and developing productivity tools that guide engineers along the optimal path.Establish and enhance standards for iOS app performance, reliability, and monitoring metrics.

Verve For Advertisers connects brands and agencies with audiences at key moments, using technology that delivers measurable results across multiple screens. The platform combines demand-side solutions, a large search intent dataset outside walled gardens, seamless SDK integrations with leading apps, and data partnerships covering over 3 million websites and LLMs. This approach goes beyond tracking actions, uncovering consumer motivations to support high-quality audiences, insights, and activation across premium omnichannel inventory. Role overview The Senior iOS Engineer will lead the development and ongoing improvement of Verve For Advertisers' iOS SDK. Integrated into hundreds of mobile apps and reaching millions of devices, this SDK sits at the core of the company’s mobile offering. The role involves significant technical ownership, including guiding architectural decisions, collaborating with cross-functional teams, and shaping the direction of the mobile platform. This is a full-time position based in New York, NY, with flexibility to work on-site at company headquarters. What you will do Lead the development and maintenance of the iOS SDK used by partner applications Influence architecture and technical decisions for mobile SDK projects Collaborate closely with product, engineering, and client teams to deliver reliable integrations Contribute hands-on and provide technical leadership to help define the future of the mobile platform Requirements Proven experience as an iOS engineer, with a strong background in SDK development Comfortable taking ownership of products used at scale Strong collaboration and communication skills, with the ability to work across teams Legally authorized to work in the United States (required by Jun Group) Location New York, NY (on-site at headquarters, with flexibility)

Join Grow Therapy as an iOS Engineer, where you'll play a vital role in enhancing our iOS app to provide accessible mental healthcare. Collaborate in a mission-driven team, implementing features that make a significant impact on the lives of therapists and patients alike. You'll design and develop new functionalities using Swift, while ensuring code quality and performance. Your contributions will directly influence our goal of making mental health care affordable and accessible across the United States.

Join Match Group as a Staff Software Engineer, specializing in iOS development. In this pivotal role, you will be responsible for designing, developing, and maintaining high-quality applications that enhance our users' experiences across our platforms. Your expertise in iOS frameworks and languages will be crucial as you collaborate with cross-functional teams to deliver innovative solutions.

Join our dynamic team at dev2 as a Senior iOS Software Engineer. In this role, you will leverage your expertise to design, develop, and maintain innovative applications for iOS devices. You will work closely with cross-functional teams to create high-quality software solutions that meet our users' needs. Your contributions will help shape the future of our mobile applications and enhance user experience.

About SunoSuno is a pioneering music technology company dedicated to enhancing creativity, where innovative ideas transform into sound and melodies become uniquely yours. We are on a mission to develop a groundbreaking platform fueled by the most sophisticated music creation model worldwide, sharing the joy of musical expression with millions.Established by passionate Harvard graduates two years ago, Suno has rapidly ascended to success, achieving an impressive $200 million in annual recurring revenue. This makes us one of the fastest-growing AI startups globally, with a current valuation of $2.45 billion. In November 2025, we secured $250 million in Series C funding and now proudly employ 150 talented individuals across our dynamic offices in Venice Beach, Cambridge, and New York City.With over 100,000 reviews and an outstanding 4.9 rating on the App Store, our iOS team is instrumental in shaping the future of our innovative products and driving our company's success.About the RoleWe are seeking skilled iOS Engineers to join our expanding mobile development team. In this role, you will collaborate closely with our product designers and managers to develop Suno's iOS application, enabling seamless music creation at everyone’s fingertips.Explore the Suno song we crafted especially for this role: https://suno.com/s/oEdmOtkZDLHCopSGWhat You’ll DoDevelop and implement essential features and UI components for Suno's iOS app utilizing Swift and SwiftUI.Collaborate with our audio engineering team to seamlessly integrate and enhance music playback and creation functionalities.Engage in design and product decision-making processes to elevate the overall user experience.Optimize the performance, user experience, aesthetic quality, and overall feel of our products.What You’ll NeedA minimum of 3 years of experience in developing iOS applications.Proficient in Swift and SwiftUI, with a strong portfolio demonstrating your work.In-depth knowledge of iOS performance optimization techniques and best practices.Ability to produce clean, maintainable, and well-documented code.Fundamental understanding of RESTful APIs and networking principles.Excellent communication skills and the capacity to thrive in a collaborative environment.A genuine passion for music (listening, exploring, creating) is highly desirable.Bachelor's degree in Computer Science or related field.

Join Hinge: The Dating App Designed to Be DeletedIn an increasingly digital world, establishing authentic connections can be challenging. At Hinge, we are dedicated to fostering meaningful relationships and combating loneliness. Our passion lies in understanding user behavior to facilitate love, with our success measured by one core goal—creating successful dates. As one of the most trusted platforms for relationship seekers globally, we aim to connect people in a genuine way.About the OpportunityAs an integral member of our dynamic iOS team, you will be instrumental in the development and enhancement of the Hinge iOS mobile application. Your primary responsibilities will include implementing innovative product features, troubleshooting issues, and elevating the overall user experience, utilizing iOS technologies such as Swift, Core Data, and various Apple frameworks. You will collaborate with a diverse team comprising product managers, technical project managers, designers, data engineers, backend engineers, and QA analysts. Working closely with the Tech Lead and fellow developers, you will contribute to our product's evolution and the growth of our engineering community. This position provides a unique chance to engage in impactful work that directly influences a mobile app used by millions. Over time, you will cultivate your skills and grow into a confident, independent iOS developer.

About MedalMedal is the premier and rapidly expanding platform for gaming clips, where millions of gamers capture, share, and relive their most exhilarating moments. Each year, our players record billions of clips, showcasing unique highlights filled with action. We are on a mission to build the next generation of gaming communities that are social, monetized, and powered by creators. Our goal is to create products that facilitate seamless and enjoyable sharing, discovering, and connecting around gaming moments.Recently, we successfully raised a seed round of $133 million from General Catalyst and Khosla to propel the future of intelligence in gaming.The RoleWe are seeking a Senior/Lead iOS Engineer to elevate our mobile application to new heights. You will collaborate with a small, talented team of engineers and designers to enhance the Medal experience on iOS—developing features ranging from real-time editing tools to content discovery and notifications. Your contributions will help shape our mobile architecture, influence product direction, and create experiences that are enjoyed by millions of gamers.If you are passionate about delivering high-quality mobile experiences, have a keen eye for user interactions, and want to work on a product that sits at the intersection of social engagement and gaming, this opportunity is perfect for you.

About the Role Clear is looking for a Staff iOS Engineer based in New York, NY. This role focuses on building mobile applications that improve how users interact with our products. The team values secure, intuitive solutions and aims to advance what mobile technology can do for customers.

Verve For Advertisers helps brands and agencies reach audiences across devices by using technology built on a large on-site search intent dataset and direct SDK integrations with leading apps. With partnerships spanning over 3 million websites, Verve provides data-driven insights into consumer behavior and supports targeted activation across premium inventory. Role overview This Senior iOS Engineer for SDK Development position centers on owning and evolving Verve’s iOS SDK, which is deployed in many applications and reaches millions of devices. The SDK forms a core part of the company’s mobile platform. The engineer will make key technical decisions, work with multiple teams, and help set the future direction of the SDK. What you will do Lead the development and ongoing maintenance of the iOS SDK Make architectural and technical decisions to support reliability and scalability Collaborate with product, engineering, and other stakeholders to ensure SDK features meet business needs Support the continuous improvement of the mobile platform’s capabilities Contract details and location This is a contract role Remote work is available from anywhere in the US or internationally Collaboration with the US-based engineering team is required during US business hours

Hinge: The Dating App Designed to Be DeletedIn an increasingly digital age, establishing authentic connections is more challenging than ever. At Hinge, we are dedicated to fostering meaningful relationships to create a world where loneliness is diminished. Our passion lies in understanding our users’ behaviors to assist them in finding love, and our success is measured by one simple goal: creating exceptional dates. With millions of users worldwide, we have become the most trusted platform for forming lasting relationships.About the PositionWe are seeking a Senior iOS Engineer to join our Growth Product Team. In this pivotal role, you will develop user-centric features that enhance how individuals discover, engage with, and return to Hinge. This team is focused on optimizing key moments in the user journey, from onboarding and activation to encouraging deeper engagement and long-term retention.As a Senior iOS Engineer, your contributions will be instrumental in helping new users successfully navigate the app, re-engaging those who have taken breaks, and highlighting the benefits of premium features. Your efforts will directly influence the user experience on Hinge, enhancing both user satisfaction and product growth.You will collaborate closely with cross-functional teams, including engineers from various platforms, product managers, designers, data scientists, and backend developers, to identify high-impact opportunities, conduct experiments, and deliver high-quality, performant mobile experiences.If you are excited about the prospect of helping millions connect in meaningful ways and have a passion for creating intuitive, elegant applications, we would love to hear from you.

Clear seeks an iOS Engineer based in New York, NY. This position centers on building mobile applications that enhance the user experience. Collaboration with other disciplines is a key part of the role, as new features are designed and developed for Clear’s mobile platform. Responsibilities Develop and maintain iOS applications for Clear Partner with product, design, and engineering teams to deliver new features Write code that meets high standards for quality and performance Requirements Experience with iOS development Interest in mobile technology Desire to contribute to products that impact users

Join Bevel as a Senior iOS EngineerAbout BevelBevel stands as the leading AI Health Companion, boasting over 1 million global downloads. Our mission is to empower individuals to make informed health decisions by seamlessly integrating data from sleep, recovery, activity, nutrition, and more into personalized, real-time guidance. Whether you're preparing for a significant achievement or simply aiming to enhance your well-being, Bevel enables you to pursue your goals with clarity and confidence.Based in the vibrant city of New York, we are a dedicated, nimble team passionate about crafting visually appealing and highly functional products. Our quest is to explore innovative approaches that enhance the capabilities of iOS and watchOS, creating an application that is intelligent, engaging, and seamlessly integrated into our users' daily lives.Since our launch in early 2024, we have been fortunate to experience remarkable growth and support from our community. We are now seeking a Senior iOS Engineer to help us realize our ambitious roadmap. This role offers the opportunity to influence the future of Bevel, granting you full ownership and creative freedom to contribute significantly to our vision.

About HookHook is an innovative social music platform, supported by leading investors, dedicated to revolutionizing music discovery, fan engagement, and creator growth. We transform beloved songs into playful sound experiences, empowering fans and creators to reimagine music through user-friendly, remix-friendly tools with no learning curve. By collaborating directly with artists, labels, and rights holders, Hook ensures that music is discovered, shared, and expressed in ways that honor and reward its creators. At Hook, music is not merely consumed; it is experienced, expressed, and personalized.Role OverviewWe are seeking a talented iOS Video Engineer to spearhead the development of Hook’s video effects pipeline and creative tools. You will be responsible for creating systems that enable real-time previews, branded effects (including color, duotone, and halftone), visual templates, and the final export of shareable Hook videos.Your contributions will significantly enhance the creative experience for millions of users within the Hook app and across exported content on platforms like TikTok, Reels, and Shorts. This hands-on technical role is perfect for someone with a background in developing video or media-rich applications, who thrives at the intersection of performance, creative tooling, and delightful user experiences.What You’ll DoDevelop Hook’s video effects engine utilizing AVFoundation and Core Image for color grading, duotone, halftone, and branded visual treatments.Implement real-time filter previews in our creative studio, ensuring optimal performance and precise rendering across all devices.Process and export final Hook videos, merging audio and video into a cohesive asset for users to share on or off the platform.Create reusable video editing utilities for cropping, trimming, aspect ratio adjustments, overlays, transitions, and template-based compositions.Collaborate closely with design and brand partners to translate After Effects concepts into efficient, mobile-friendly filters and animations.Optimize the entire media pipeline for performance, memory, and battery efficiency using Core Image, AVVideoComposition, and advanced concurrency techniques.Advance Hook’s creative capabilities, facilitating future features such as templates, multi-layer compositions, and creator-driven video tools.

About UsCredit Genie is an innovative, mobile-first financial wellness platform dedicated to empowering individuals to take charge of their financial futures. Utilizing advanced artificial intelligence, we deliver personalized insights while creating a comprehensive financial ecosystem that offers instant access to cash and tools for building credit. Our mission is to help every customer achieve long-term financial stability.Founded in 2019 by Ed Harycki, the former founder of Swift Capital (which was acquired by PayPal in 2017), we are backed by Khosla Ventures and led by experts from industry giants such as PayPal, Square, and Cash App. We are strategically positioned to shape the future of inclusive finance through cutting-edge technology and customer-centered solutions.We are seeking a passionate and skilled Senior iOS Engineer to architect and enhance our mobile applications as we prepare for significant growth over the next 2-3 years. The ideal candidate will have a proven track record in leading the development of high-quality, stable, and low-latency mobile applications.If you are enthusiastic about creating exceptional iOS applications and are eager to tackle the challenges of integrating new products and features, we would love to have you on our team. As a Senior iOS Engineer, you will take ownership of critical components of our mobile app while collaborating with cross-functional teams to ensure that our application scales and evolves to meet the demands of millions of users.Your ResponsibilitiesCollaborate with designers, product managers, and engineering teams to architect new products and define an engaging user experience that seamlessly integrates with our iOS mobile app.Leverage your expertise in iOS mobile app development to enhance team practices, design patterns, deployment processes, and overall customer experience.Engage with stakeholders from product, marketing, and other departments to align initiatives with KPIs and business objectives.Develop clean, efficient, and reusable code for app design, features, components, and integrations.Contribute to all stages of the development lifecycle, ensuring high standards and smooth transitions.Participate in best engineering practices including code reviews, daily stand-ups, planning sessions, and technology demonstrations.Stay updated on emerging technologies and industry trends, assessing their potential to enhance the Credit Genie product suite and maintain our competitive advantage.

We are seeking a talented and passionate Staff iOS Engineer to join our dynamic team at twitter2. This role offers exciting future opportunities for innovation and growth within our company. As a Staff iOS Engineer, you will be responsible for developing high-quality mobile applications that enhance user experience and functionality.Your expertise will help shape our iOS development strategy and deliver cutting-edge solutions. Collaborating with cross-functional teams, you will contribute to the entire app development lifecycle, from concept to deployment.