Senior Android Engineer I

At Lyft, we are driven by our mission to connect communities and enhance mobility. We focus on fostering an open, inclusive, and diverse culture that empowers our teams. As part of our Mobile Foundations team, you will play a pivotal role in developing robust software solutions that tackle large-scale challenges, ensuring our mobile applications are not only stable but also scalable and efficient.In your role as a Senior Android Engineer, you will be responsible for creating and maintaining the core systems that serve as the backbone for all Lyft mobile engineers. Your contributions will enable teams across the organization to deliver exceptional experiences that seamlessly connect people and places. You will be instrumental in building scalable infrastructure that accelerates innovation while prioritizing an outstanding developer experience. Your efforts will directly enhance the stability of Lyft as a whole.Our mobile applications are utilized by millions, and we take pride in maintaining high development standards. We follow best practices in code architecture and embrace rapid release cycles. Our codebase is primarily written in Kotlin, leveraging modern design patterns and coding practices. We also actively engage with the developer community, contributing to open-source projects, including the Kotlin language itself.

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.

Join Our Innovative TeamAt OpenAI, we are on a mission to revolutionize mobile technology. Our team is responsible for developing a robust Kotlin-based platform that powers ChatGPT, Sora, and other rapidly advancing Android applications. Android is a crucial platform for ChatGPT, and we are dedicated to enabling teams to iterate swiftly while maintaining exceptional performance and reliability.About This PositionWe are seeking experienced Staff+ Android Engineers with diverse backgrounds in the Android ecosystem, particularly those specializing in performance optimization, continuous integration (CI), and enhancing AI developer productivity. Whether your expertise lies in UI frameworks, automated testing, or other areas, your contributions will lead to reduced friction, lower complexity, fewer regressions, and enhanced performance.If you are passionate about transforming Android development in the age of advanced AI tools, we want to hear from you.We are hiring in San Francisco, New York, and Seattle, with consideration for remote candidates.Your Responsibilities:Develop and enhance core Kotlin frameworks utilized across various applications and platforms (including caching, state management, observability, navigation, and component systems).Optimize application performance (startup time, responsiveness, memory usage, battery life) through profiling, monitoring, and architectural enhancements.Boost reliability by minimizing crashes, refining error handling, and improving the release process.Work closely with product engineering teams to understand and address pain points and emerging infrastructure requirements.Create internal tools and automation (CI, testing frameworks, Codex agent skills, etc.) to enhance engineering efficiency.Simplify real-world constraints into user-friendly abstractions: intuitive APIs, enforceable contracts, and safe defaults.You Will Excel If You:Possess strong expertise in Android development (Kotlin, modern architectural patterns, Jetpack).Thrive on tackling platform challenges: frameworks, architecture, performance, or developing tools that empower fellow engineers.Take initiative by identifying risks and opportunities, driving projects to completion, and adapting swiftly to changes.Value measurement: implement instrumentation, define metrics, conduct experiments, and iterate based on data.

About the TeamAt OpenAI, our Applications Engineering organization is at the forefront of transforming groundbreaking research into user-friendly products that reach millions globally. The Applied Foundations team is pivotal, managing the essential product and platform layers that enable seamless user experiences—from identity and access management to safety, payments, and commerce across all our applications. Our diverse teams collaborate across product engineering, infrastructure, and safety, ensuring that we deliver technology that is not only reliable but also secure and trusted on a global scale.About the RoleAs a Senior Android Engineer on the Applied Foundations team, you will play a critical role in developing the core mobile experiences that facilitate user sign-up, account management, family features, service payments, and secure interactions with OpenAI’s suite of products. This position emphasizes the creation of high-quality products and reusable Android foundations that empower product teams across various OpenAI apps to expedite their delivery while adhering to the highest standards of security, reliability, and user trust. You will manage intricate client-side systems encompassing UI, networking, local state, payment integrations, and Apple platform integrations, collaborating closely with backend, product, and safety partners to architect a robust mobile ecosystem for OpenAI on a global scale.You may be an ideal candidate if you:Possess 4+ years of professional software engineering experience.Have a strong portfolio demonstrating high-quality Android applications in production.Are proficient in Kotlin (and/or Java) and are well-versed in Android development tools and architecture components.Prioritize performance, security, and user experience in your mobile development process.Enjoy cross-functional collaboration to bring innovative product ideas to fruition.Are passionate about enhancing performance, security, and overall user experience.

Join Us as Our First Marketing LeadFoundation is on the lookout for our inaugural marketing leader to propel our vision of revolutionizing homebuilding and enhancing the journey of buying, selling, and owning a home.About FoundationWith approximately $6.8M in backing from top-tier venture capitalists, including Y Combinator, Foundation is composed of a dynamic team formerly from Opendoor, dedicated to reshaping the future of residential real estate.Our flagship product is a cutting-edge customer experience platform designed specifically for homebuilders—think of it as the "Shopify for Homebuilders." We collaborate with large-scale homebuilders to deliver a modern digital experience, significantly boosting customer satisfaction and team productivity. In just two years, we've achieved remarkable product-market fit and impressive growth, all without a dedicated marketing team.Our Growth JourneyWe are currently navigating the first of three interconnected growth phases:AI-Driven SaaS for Homebuilding: A transformative opportunity with public-scale potential.Real Estate Enterprise Ecosystem: Homebuilders drive this ecosystem, which fosters collaboration among adjacent trillion-dollar sectors such as lending, title, home insurance, and retail.AI Native Home Operating System: This will enable seamless home buying and ownership through our platform.Your Role as Our First MarketerWe seek a hands-on, results-driven marketer passionate about transforming a key sector of the U.S. economy and redefining marketing in the age of AI.Key ResponsibilitiesYou will be pivotal in steering Foundation's next growth phases by integrating AI with marketing and real estate innovation. Your primary objectives will include:Accelerating Growth: Drive rapid expansion of our core AI-driven product line for homebuilders.

Join Airwallex as a Senior Mobile EngineerAt Airwallex, we are redefining the future of global payments and financial solutions. As a Senior Mobile Engineer, you will play a pivotal role in shaping our state-of-the-art mobile applications for both iOS and Android platforms, focusing on delivering an outstanding user experience.Your expertise will drive the development of fully integrated solutions that empower over 200,000 businesses worldwide to efficiently manage their global payments, expenses, and banking needs. You will work with cutting-edge technologies such as SwiftUI, Combine, and Async/Await for iOS, and AndroidX, Coroutines, Hilt, along with various Jetpack libraries for Android.Join a dynamic team of innovators who are passionate about building the future of finance. If you are eager to tackle complex challenges, collaborate with exceptional teammates, and take ownership of your work, we want to hear from you!

Join our dynamic team at 360 IT Professionals as a Senior Android Developer! In this role, you will play a crucial part in designing, developing, and implementing innovative mobile applications. You will collaborate with cross-functional teams to define app features and ensure high performance and quality standards.

Join Our Team as a Customer Success Manager/Lead!At Foundation, we're on a mission to revolutionize the homebuilding industry and enhance the experience of buying, selling, and owning homes. We are looking for a dedicated Customer Success Manager to join our dynamic team and drive our core business forward.About UsWith $6.8M in funding from top-tier venture capitalists, including Y Combinator, Foundation is comprised of a talented team formerly from Opendoor, focused on transforming residential real estate. Our flagship product is a cutting-edge customer experience platform tailored for homebuilders — envision it as the 'Shopify for Homebuilders'. We partner with large-scale homebuilders to provide a modern digital experience that significantly boosts customer satisfaction and team productivity. Within just two years, we have achieved remarkable growth and established a strong product-market fit.The RoleAs a Customer Success Manager, you will play a pivotal role in fostering and expanding relationships with our diverse portfolio of clients. You will be the primary contact for our customers post-onboarding, ensuring they maximize their use of our platform and derive long-term value. This position requires a proactive approach in managing multiple accounts, identifying risks and opportunities, and collaborating closely with our Product, Engineering, and Operations teams.This is an ideal opportunity for someone who thrives in a fast-paced environment, enjoys tackling challenges, and seeks a meaningful role within a scaling startup. You will have the autonomy to influence our customer engagement strategies and drive significant impact.

At Nestmed, we are revolutionizing healthcare documentation with our innovative AI platform, empowering clinicians to focus on what matters most - patient care.In just one year, we've expanded our reach to support tens of thousands of healthcare professionals across over a million patient visits. We proudly serve as a trusted partner for more than 60 home health agencies, including seven of the top ten enterprises in the United States.Our founding team, comprised of experts from Stanford, Y Combinator, Google, and Meta, is backed by the visionary founders of PayPal and Plaid. Together, we aim to establish the vital infrastructure for the future of the $500 billion home healthcare industry.Join Us!We are looking for a Senior Android Engineer to take the reins of our mobile application, the critical interface for clinicians documenting care in patients' homes. Your work will involve real-time voice capture, background processing, and ensuring seamless synchronization even in challenging network conditions. Collaborating closely with our CEO and CTO, you will tackle complex technical challenges and help shape our mobile platform as we continue to scale.

About UsAt XOXO AI, we are a cutting-edge research lab dedicated to creating intelligent interfaces that enhance everyday life. Our stealth team comprises passionate engineers, designers, and researchers who are committed to solving innovative challenges that extend beyond the workplace.Following a recent breakthrough in infrastructure, architecture, and model layers, we are eager to welcome talented builders to craft the interface and application layer that will realize our ambitious vision.About the RoleWe are seeking an experienced Android engineer to lead the development of XOXO's consumer app, featuring a revolutionary interface for intelligence. This position is ideal for a highly skilled engineer who can take ownership of the entire mobile experience, focusing on architecture, performance, refinement, and a visually engaging design system that ensures intentionality in every interaction.Your background is less important than your drive: you should possess a strong sense of ownership, be able to work swiftly without compromising quality, and be eager to create a mobile product that redefines excellence in both craft and performance.What You’ll DoDesign and launch the initial versions of our React Native app, guiding it from prototype to production.Convert a highly visual design system into reusable components, motion, and interaction patterns with seamless performance.Develop new product surfaces that integrate modern AI/ML capabilities in a user-friendly manner on mobile.Enhance the app's performance across various dimensions: rendering, startup time, memory usage, battery efficiency, networking, and perceived speed.Establish high standards for mobile engineering quality (testing, instrumentation, release discipline) and collaborate closely across the tech stack to deliver comprehensive solutions.

Waymo is a pioneering company in autonomous driving technology, dedicated to becoming the world's most trusted driver. Originating as the Google Self-Driving Car Project in 2009, Waymo has remained focused on developing the Waymo Driver—The World's Most Experienced Driver™—to enhance mobility access while significantly reducing traffic-related fatalities. The Waymo Driver is the backbone of Waymo's fully autonomous ride-hail service and is adaptable across various vehicle platforms and applications. Having completed over ten million rider-only trips, it has amassed experience through more than 100 million miles driven autonomously on public roads and tens of billions of miles simulated across 15+ U.S. states.Waymo's commercial operations currently span five cities, with a robust infrastructure in the early stages of development, necessitating further investment to scale into a world-class service.We are assembling a talented team of engineers to elevate our Android Platform team. This team is responsible for crafting the user interfaces that allow customers to engage with our autonomous vehicles, providing entertainment and information during their rides. As a full-stack team, we oversee the setup and ongoing maintenance of a complete automotive-grade Android system.In this hybrid role, you will report directly to an Engineering Manager.

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.

Join our innovative team at StemXpert1 as an Android Engineer, where you will be at the forefront of mobile application development. You will collaborate with cross-functional teams to design, implement, and maintain high-quality Android applications that deliver exceptional user experiences.

Join Our Innovative TeamThe ChatGPT team at OpenAI is at the forefront of our mission to innovate across core domains, including Growth, Personalization, and Search Infrastructure. We are expanding our talented teams to create cutting-edge experiences, tools, and systems that enhance ChatGPT's functionality across all user platforms.Your Role as an Android EngineerWe are seeking a skilled Android Software Engineer to take the lead in developing exciting new features for the ChatGPT Android application.Key Responsibilities:Craft and implement innovative features and functionalities for the ChatGPT Android app.Set and uphold rigorous engineering standards focusing on performance, reliability, and code quality.Collaborate with cross-functional teams to design user-centric experiences.Influence technical decisions and establish a robust long-term architecture for mobile platforms.Provide mentorship and guidance to peers through code reviews and shared ownership.Ideal Candidate Attributes:Proficient in Android development using Kotlin/Java, modern architectural patterns, and Jetpack.A passion for enhancing mobile UX and optimizing system performance.Thrives in dynamic, collaborative environments.We are open to candidates in San Francisco, New York, and Seattle.About OpenAIOpenAI is a pioneering AI research and deployment organization dedicated to ensuring that general-purpose artificial intelligence serves the interests of humanity. We actively push the boundaries of AI capabilities while prioritizing safety and human-centric design in all our products. Our commitment to inclusivity drives our mission to incorporate diverse perspectives, experiences, and voices, reflecting the full spectrum of humanity.We are proud to be an equal opportunity employer, embracing diversity and ensuring that all individuals are treated fairly, regardless of race, religion, gender, or any other protected characteristic.

Join Substack as an Android Engineer and help us build a vibrant community for writers and readers. In this role, you will develop and enhance our Android application, ensuring that it provides the best possible experience for our users. You will collaborate closely with product managers, designers, and other engineers to deliver high-quality features and improvements.

Join SoFi as a Senior Software Engineer in our Data Foundations team, where you will play a pivotal role in shaping our data architecture and enhancing our data-driven capabilities. You will work closely with cross-functional teams to develop robust data solutions that empower our business decisions and improve customer experiences.As a Senior Software Engineer, you will leverage your expertise in data engineering, software development, and cloud technologies to build scalable data pipelines and maintain high-quality data infrastructure. Your contributions will directly impact our ability to deliver innovative financial solutions.

Founded in 2007, Airbnb has transformed the way people travel and connect. From humble beginnings with just three guests in a San Francisco home, we have grown to a global community of over 5 million hosts who have welcomed more than 2 billion guest arrivals across nearly every country. Our hosts provide unique accommodations and experiences that foster authentic connections with local communities.Join Our Talented Community:As a member of Airbnb's App Foundation team, you will collaborate across platforms to create high-quality, performant capabilities that enhance nearly all features within the Guest and Host ecosystems.Our primary focus is on developing App Product Frameworks, Insights & Logging, Performance & App Health, and Feature Architecture. We work hand in hand with Product, Design, Platform (iOS/Android/Web), Analytics Infrastructure, Data Platform, and other Product Foundation teams to establish cohesive paved paths and standards at scale. We pride ourselves on a culture that values technical excellence, pragmatic decision-making, robust ownership, and a steadfast commitment to enhancing both developer and user experiences through foundational work.Your Impact:Collaborate with cross-functional partners (design and product) to explore, shape, and implement new product experiences from ideation to large-scale execution.Develop efficient and reusable backend capabilities that prioritize quality while ensuring performance and scalability.Lead initiatives that significantly enhance Guest and Host experiences by improving app responsiveness and ensuring reliable performance across critical backend systems impacting millions.Establish a performance roadmap by identifying bottlenecks, prioritizing impactful work, and delivering enhancements across services, data access patterns, and infrastructure.Elevate performance engineering standards by creating tools, benchmarks, and guardrails that prevent regressions and integrate performance considerations into team workflows.Influence architecture and standards across Airbnb's backend ecosystem to improve observability, efficiency, and adaptability of systems.A Day in Your Life:Join us in making a difference for millions of users worldwide by building the backend foundations that power the Airbnb experience.

Join Our MissionFoundation is on the lookout for exceptional engineers to propel our mission of modernizing the homebuilding industry and enhancing the journey of purchasing, selling, and owning homes.About UsWith an impressive backing of $6.8 million from top venture capitalists, including Y Combinator, Foundation is formed by a team of former Opendoor professionals dedicated to revolutionizing residential real estate.Our flagship product serves as a pioneering customer experience platform tailored for homebuilders, akin to “Shopify for Homebuilders.” We collaborate with large-scale homebuilders to provide a cutting-edge digital customer experience, significantly boosting customer satisfaction and team productivity. In just two years, we’ve achieved notable product-market fit and rapid growth, supported solely by contract design.Our Growth PhasesWe are currently navigating the first of three interconnected growth phases:Innovative, AI-driven vertical SaaS for homebuilding - a public-scale potential in its own right.The enterprise ecosystem for real estate - enabling collaboration among adjacent trillion-dollar industries including lending, title, home insurance, and home services.The AI-native home operating system and interface - leveraging the network effects of the enterprise ecosystem to deliver transformative AI experiences for homebuyers and homeowners. Discover, purchase, and manage your home seamlessly with Foundation.Your RoleIn this pivotal role, you will contribute to creating the most reliable and modern customer experience platform within the homebuilding sector, transitioning traditional workflows into the AI era with insight, pragmatism, and empathy.You will work closely with product and customer teams, engaging in comprehensive stack development, collaborating with design and go-to-market teams, and owning significant portions of the platform from initial discovery to production refinement. Our focus is on real businesses, real revenue, and real users who require robust and reliable tools.

Reddit hosts a massive community platform, bringing together over 100,000 active communities and reaching about 121 million unique daily visitors. The company’s Android Platform team leads the technical direction for Reddit’s Android app, shaping its architecture and ensuring a reliable experience for millions of users. Role overview This Staff Android Engineer (Client Platform) position centers on technical leadership within Reddit’s Android organization. The work focuses on client health (crashes, ANRs, performance), developer experience, and app architecture. The role supports both the core app and the frameworks and tools that enable other teams to build and ship features efficiently. What you will do Design and architect the future of Reddit’s Android app, supporting over 100 million daily active users. Build tools, workflows, and CI integrations to improve the Android developer experience and streamline deployment. Establish and enforce guardrails, such as lint/static analysis, tests, and AI-assisted code reviews, to catch issues early. Develop frameworks for client health and observability, including events, traces, and dashboards. Integrate AI strategies into engineering workflows to increase productivity. Mentor and support Android engineers through design reviews, documentation, and sharing platform knowledge. Requirements Minimum 8 years of professional software engineering experience, with a strong background in Android development. Location San Francisco, CA Learn more about Reddit at www.redditinc.com.