Senior Android Developer

Join our dynamic team at Sonsoft Inc. as an Android Architect. In this pivotal role, you will lead the design and development of innovative Android applications that enhance user experiences. Your expertise will guide our mobile development efforts, ensuring that our applications are not only functional but also scalable and maintainable.As an Android Architect, you will collaborate closely with cross-functional teams, including UX/UI designers, product managers, and backend developers, to create seamless integration between frontend and backend services. This is an exciting opportunity to shape our mobile strategy and mentor junior developers.

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 StravaStrava is the ultimate app for active individuals, boasting a community of over 180 million athletes across more than 185 countries. It transcends simple workout tracking; it's a platform where athletes progress together, fostering new habits and achieving personal bests. Regardless of your sport or tracking method, Strava is your go-to companion. Connect with your community, achieve your goals, and make every effort count. Start your journey with Strava today.Our mission is clear: to inspire individuals to lead their best active lives. We believe in the transformative power of movement to unite and propel people forward.About This RoleWe are looking for a Senior Android Engineer to join the Subscriptions Team, focused on enhancing Strava’s subscription and checkout experiences. You will develop the Android interfaces that facilitate our transition from free to paid options, including paywalls, purchasing flows, and Google Play Store integrations, impacting millions of athletes worldwide. This role is vital to Strava’s growth and provides significant ownership over highly visible product features.In this position, you will collaborate closely with product, design, analytics, and marketing teams, while also engaging with Strava’s extensive Android community through architecture reviews, code reviews, pair programming, and our active Android guild. Join the team behind the leading fitness app and the 2025 Apple Watch App of the Year as we continue to set standards for Android excellence.We follow a flexible hybrid model, requiring you to be on-site in our San Francisco office for three days a week.What You’ll Do:Lead the Android initiatives on the Subscriptions team, establishing the technical vision and delivering features that impact millions.Drive Strava’s subscription growth through lifecycle experimentation including upsells and checkout enhancements.Maintain and improve our Google Play Billing integration, ensuring critical business processes are stable and reliable.Collaborate closely with product and design teams to deliver polished features in small, focused increments.Mentor fellow engineers through code reviews and pair programming, setting the standard for Android quality across the organization.Leverage the latest AI tools to identify efficient and innovative software development methods.

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 team at StemXpert as an Android Developer. In this role, you will be responsible for designing and developing cutting-edge mobile applications that enhance user experience. You will collaborate with cross-functional teams to define, design, and ship new features, while maintaining a high standard of quality for our applications.

Join our innovative team at Twitter Inc. as a Staff Android Engineer and be at the forefront of mobile technology development. In this dynamic role, you will leverage your expertise in Android development to create exceptional user experiences. We are looking for passionate individuals who thrive in a fast-paced environment and are ready to take on exciting challenges.

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 our dynamic team at 360itprofessionals1 as a Junior Android Developer! We are seeking a passionate developer who will contribute to the design and development of innovative mobile applications. You will work closely with our experienced team to create high-quality applications that enhance 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.

We are seeking an innovative and experienced .NET Architect to join our team in San Francisco. As a .NET Architect, you will play a critical role in designing and implementing robust software solutions that meet our clients' needs. You will work closely with development teams to ensure architectural integrity and optimal performance of applications.

Join our dynamic team at 360IT Professionals as a Senior Android Developer and play a crucial role in designing and developing cutting-edge mobile applications. We are looking for an innovative and experienced professional who is passionate about technology and eager to contribute to exciting projects that impact our clients and users.

Join our dynamic team at 360 IT Professionals as a Full-Time Android/iOS Developer specializing in Android SDK. We are looking for a passionate developer who is eager to bring innovative mobile applications to life. If you thrive in a collaborative environment and have a keen eye for detail, this role is for you!

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.

Key Responsibilities * Actively engage in hands-on development * Architect and develop cutting-edge applications for the Android ecosystem * Prioritize the creation of secure and high-performance applications. * Collaborate with diverse teams to conceptualize, design, and implement innovative features * Integrate internal and external data sources and APIs * Conduct unit tests to ensure code robustness, covering edge cases, usability, and overall reliability * Address bugs and enhance application performanceEssential Qualifications* Bachelor's or Master's degree in Computer Science, Engineering, or a related field * 6+ years of dedicated experience in Android development. * Demonstrated software development expertise and strong Android skills * Proven track record of publishing at least one original Android application on the Google Play Store * Familiarity with popular Android libraries (such as Dagger, Retrofit) and application compatibility libraries (like Data Binding) for developing applications compatible with all Android devices. * Experience in invoking REST APIs and parsing JSON * Knowledge of mobile security, including encryption and API security. * Comprehensive understanding of the complete mobile development lifecycle

Join SoFi as a Staff Enterprise Architect, where you'll play a pivotal role in shaping our technology strategy and architecture. In this position, you will collaborate with cross-functional teams to define and implement scalable, secure, and efficient technology solutions that align with our business objectives. Your expertise will guide the design and implementation of enterprise-level systems, ensuring optimal performance and reliability.

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.

Join Reddit's dynamic Brand Ad Formats team as an Android Software Engineer, where you'll be instrumental in shaping innovative ad experiences for millions of users. Your role will involve developing impactful ad formats, enhancing the performance of Reddit’s Android app, and collaborating with cross-functional teams to tackle complex challenges. We are seeking a product-focused engineer who is eager to push the boundaries of advertising technology and elevate user engagement through creativity and technical expertise.

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.

AllTrails brings together millions of outdoor enthusiasts, offering an extensive library of trails and resources to support outdoor adventures. The platform aims to make nature accessible to everyone and encourages responsible enjoyment of the outdoors. Role overview The Android Engineer position at AllTrails is fully remote within the United States. While applicants from across the country are welcome, there is a preference for those based near San Francisco CA, Portland OR, Seattle WA, Denver CO, or New York NY. Living near these cities can make it easier to participate in Trail Days, collaborative meetings, and community events, though remote work remains the standard. Employees located in San Francisco are invited to visit the office once a week for in-person collaboration. This role combines the flexibility of remote work with opportunities to connect with colleagues and the broader AllTrails community.