Staff Software Engineer - Mobile at Quizlet | San Francisco, CA

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...

We are seeking a visionary Head of Engineering to lead our dynamic team at Gusto. As the Head of Engineering, you will play a critical role in shaping our technology strategy and driving innovative engineering solutions. This is an exciting opportunity to influence the direction of our engineering practices and to mentor and grow our talented engineering team.

Join Our Team at Triumph ArcadeTriumph Arcade revolutionizes mobile gaming by enabling players to wager and win real money while enjoying mass multiplayer games and social tournaments. We proudly offer the leading app in our category on the App Store, and we've experienced remarkable month-over-month growth in both revenue and active users. As we continue to scale rapidly, we are excited to innovate and launch new products like Rips, our successful collectibles app, which is expanding its reach. And this is just the beginning!Backed by top-tier consumer venture capitalists such as Goodwater Capital, General Catalyst, and DraftKings Drive Fund, Triumph Arcade is poised for growth.

About Abby CareAt Abby Care, we are dedicated to revolutionizing family caregiving in America. Our mission tackles one of the most pressing challenges faced by over 50 million unpaid family caregivers: providing them with the training and employment they deserve for the vital care they offer at home.We are creating a powerful, tech-driven family care platform that enhances the caregiving experience, improves health outcomes, and delivers exceptional support nationwide.As we expand our mission, we are seeking passionate individuals to join our team. Our partnerships with leading healthcare providers, insurance plans, and community organizations, along with the backing of top-tier, mission-focused venture capitalists, empower families across the country. You will become part of a talented team with expertise from renowned companies such as Uber, Scale AI, DoorDash, Dropbox, and Meta.The RoleWe are in search of a motivated and skilled Senior Software Engineer, Mobile (iOS & Android) to join our team. You will report directly to the VP, Head of Engineering. This is a full-time role based in San Francisco, CA (4 days in-person).In this position, you will be at the forefront of transforming family caregiving through innovative, AI-driven mobile solutions. You will lead the development of our mobile applications, ensuring they are user-friendly, intuitive, and robust for family caregivers. Recognizing that our users may not be tech-savvy and may utilize the app in various environments with inconsistent connectivity, you will create solutions that function seamlessly in real-world conditions, establish a comprehensive testing framework, and implement reliable updates that families can depend on daily.Key Responsibilities:Oversee the entire mobile app development lifecycle. You will take ownership from initial concept through to delivery, including technical design, core feature implementation, performance optimization, and oversight of release cycles for both iOS and Android platforms.Create an intuitive and resilient caregiver-focused experience. You will develop user flows that are straightforward, guided, and forgiving, tailored for non-technical users, ensuring the app remains functional in low-connectivity situations.

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.

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 GustoAt Gusto, our mission is to empower the small business economy. We take care of the complex tasks—such as payroll, health insurance, 401(k) plans, and HR—allowing business owners to concentrate on their craft and their customers. With teams located in Denver, San Francisco, and New York, we proudly support over 400,000 small businesses nationwide, while fostering a workplace that reflects and celebrates the diverse clientele we serve. Discover more about our Total Rewards philosophy.About the RoleIn your role as a Senior Staff Software Engineer on the Entity Management team, you will spearhead the technical development of an innovative product designed to alleviate compliance burdens for entrepreneurs, enabling them to focus on business growth without the stress of paperwork. Your responsibilities will include executing pivotal technical initiatives as outlined in the team roadmap, collaborating with cross-functional stakeholders, and mentoring other engineers. If you are driven by innovation and aspire to make a significant impact, we encourage you to join our dynamic team.About the TeamThe Entity Management team is dedicated to creating and maintaining tools that assist small businesses in navigating the entire lifecycle of their legal and compliance requirements, including incorporation. We support business owners from the initial step of incorporation throughout ongoing compliance, account monitoring, and even dissolution when necessary. Our mission is to simplify and automate these complex, time-consuming processes, allowing business owners to focus on growth without the worry of regulatory issues.Here’s what you’ll do day-to-day:Implement the technical roadmap for the new product within your team’s scope, ensuring it aligns with overall business objectives and Entity Management goals.Work collaboratively with cross-functional teams, including Product Management, Design, Customer Support, and Marketing, to deliver high-quality solutions.Mentor and support engineering team members, fostering a culture of continuous learning and improvement.Develop and refine the team’s software development processes and technical approaches to ensure efficient and effective project execution.Lead the implementation of new functionality, ensuring adherence to best practices in software development.

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!

Join Gusto as a Staff Software Engineer specializing in Observability, where you will play a pivotal role in enhancing our software's performance and reliability. Utilize your expertise to develop and implement monitoring solutions that provide insights into application behavior, ensuring a seamless experience for our users.Your contributions will directly impact our engineering processes and product quality. Collaborate with cross-functional teams to identify and resolve issues proactively, while also driving initiatives to improve system observability.

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 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 small businesses by simplifying the complexities of payroll, health insurance, 401(k)s, and HR. This allows business owners to devote their time to what they do best: serving their customers. With teams located in Denver, San Francisco, and New York, we proudly support over 400,000 small businesses nationwide. Join us in building an inclusive workplace that reflects the diverse community we serve. Discover more about our Total Rewards philosophy.We are seeking experienced engineers to contribute to our customer-facing product teams, focusing on developing innovative features and enhancing our platform. As a Staff Software Engineer at Gusto, you will lead projects from inception to execution, influencing feature specifications, building backend APIs, crafting frontend code, and implementing continuous improvements for deployed functionalities. If you are passionate about creating impactful software solutions that drive change in the modern economy, we invite you to join our team!Key Responsibilities:Design, develop, and test Gusto’s comprehensive product suite, which includes Payroll, Benefits, HR, Time, Tax Credits, and more.Guide and mentor fellow engineers in tackling challenging technical problems in complex domains at scale.Contribute to scaling one of the largest Ruby/Rails and JavaScript/React applications globally.Work collaboratively with our Product Management and Design teams to identify customer pain points, devise solutions, and prototype, iterate, and launch features on a daily basis.Create products that our customers truly love.

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 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 VSCO VSCO (pronounced vis–co) is a vibrant platform designed to provide photographers with the essential tools, community, and visibility they need to flourish both creatively and professionally. Our commitment lies in nurturing a genuine creative atmosphere that caters to photographers of all skill levels, ensuring a sanctuary for creativity, inspiration, and collaboration. Our mission is to support photographers in their journey, equipping them to connect with fellow creatives and businesses through our comprehensive suite of innovative tools spanning mobile and desktop platforms across our global community. We seek individuals who are motivated and proactive in elevating our company mission. At VSCO, you will have the chance to make a significant impact, as we believe that collective building leads to stronger outcomes. Our core values are foundational to our team culture and influence our hiring practices. Discover what you can expect when joining VSCO on our Careers Page. About The Role If you are passionate about iOS development and eager to be part of a dynamic team of creators, we encourage you to apply for this role and help us empower creators globally. At VSCO, you will collaborate with talented individuals who share your enthusiasm for innovation and creativity. We are developing a comprehensive ecosystem of tools for photographers, enhancing our existing offerings while creating new products and services. This pivotal role will allow you to define and advance our vision, significantly influencing how our users create, connect, and monetize their work. Join us in shaping the future of mobile technology and making a meaningful contribution to the global creative community. As a Staff Engineer, you will primarily function as a technologist, engaging in coding, tackling complex challenges, and staying abreast of emerging technologies. Your influence will extend beyond individual contributions as you serve as a technical leader, guiding the team through intricate issues, advocating for best practices, and anticipating future needs to keep the team ahead of the curve. You will focus on scalability, long-term maintainability, and future enhancements, while also mentoring fellow engineers, raising the quality bar, and facilitating success for others.

At Hover, we empower individuals to design, enhance, and safeguard the properties they cherish. Utilizing our proprietary AI, developed over more than a decade of extensive real estate data, we address pivotal queries such as “What will it look like?” and “What will it cost?”. Homeowners, contractors, and insurance experts depend on Hover for precise measurements and interactive 3D models of properties, all achievable through a quick smartphone scan.Driven by curiosity and purpose, our team is dedicated to serving our customers and communities. We believe that the best innovations stem from diverse perspectives and take pride in fostering an inclusive, high-performance culture that encourages growth, accountability, and excellence. Supported by renowned investors like Google Ventures and Menlo Ventures, and trusted by industry leaders such as Travelers, State Farm, and Nationwide, we are transforming how people perceive and interact with their environments.Why Hover Wants YouWe are in search of a proactive full-stack engineer who is committed to crafting reliable, high-quality systems that create real-world impact.Our Mobile team comprises a close-knit group of engineers specializing in Rails, iOS, React Native, and Android, all of whom are dedicated to their craft and customer experience. We develop and refine the mobile platform that is central to Hover’s operations — the systems that convert real-world property data into accurate 3D models and measurements, utilized daily by contractors and insurers. We collaborate seamlessly across engineering, product, and design to enhance core customer journeys while scaling our platform with confidence.In this role, you will engage with all layers of the technology stack — designing scalable backend APIs, optimizing data flows, and enhancing user-friendly frontend experiences — all aimed at building products that are high-performing, resilient, and meticulously designed. If you are excited by the challenge of solving intricate system problems and want your contributions to have a visible, measurable effect, this is where you can excel.

About the Role Speechify is looking for an iOS Core Product Software Engineer in San Francisco, CA. This position focuses on building and improving iOS applications that make audio content more accessible and enjoyable. The work centers on delivering a strong user experience for a diverse audience. What You Will Do Develop and maintain core features for Speechify’s iOS app Work closely with teams across product, design, and engineering Apply new technologies to improve app performance and accessibility Help shape the future direction of Speechify’s audio content platform Location This role is based in San Francisco, CA, USA.

Join Gusto as a Staff Software Engineer specializing in Core Platforms, where you will drive the development of innovative software solutions that power our platform. You will collaborate with cross-functional teams to architect and implement scalable systems that enhance the user experience for our clients. This role is essential in shaping and evolving our technology stack, ensuring that we maintain a competitive edge in the industry.

About UsAt XOXO, we are a pioneering research lab dedicated to creating the intelligence interface for daily living. Our covert team of expert engineers, designers, and researchers is focused on uncovering innovative solutions to unique challenges that affect life beyond the workplace.With our recent advancements in infrastructure, architecture, and model layers, we are seeking passionate builders to craft the interface and application layers that will actualize our ambitious vision.About the RoleWe are in search of a skilled iOS engineer to develop XOXO's consumer application, featuring a revolutionary interface for intelligence. This role is ideal for an exceptional engineer who can take ownership of the entire mobile experience—from architecture to performance, refinement, and a visually engaging design system that ensures intentionality in every interaction.Your background is less important than your motivation: you possess a strong sense of ownership, operate swiftly without compromising quality, and are eager to create a mobile product that redefines craftsmanship and performance standards.What You’ll DoDesign and launch the initial iterations of our React Native application, transitioning it from prototype to production.Convert a highly visual design system into reusable components, animations, and interaction patterns with smooth performance.Develop new product features that seamlessly integrate modern AI/ML capabilities within the mobile context.Enhance app performance metrics, focusing on rendering, startup time, memory usage, battery consumption, networking, and user-perceived speed.Establish high standards for mobile engineering quality (testing, instrumentation, release discipline) and collaborate closely across the tech stack to deliver comprehensive solutions.Skills & QualificationsMinimum qualifications:A minimum of 3 years of experience in shipping production mobile applications with an unwavering commitment to quality.Extensive knowledge of React Native and Swift, accompanied by a strong understanding of architecture and long-term maintainability.Proven ability to transform a highly visual design system into a fast, pixel-perfect user interface (UI), incorporating components, interaction patterns, and accessibility features.A track record of developing mobile applications that feel instantaneous under real-world constraints (startup time, rendering, memory, battery, networking) and knowing diagnostic techniques for performance issues.