Senior Android Software Engineer

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 mod…

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.

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.

Join our dynamic team at 360 IT Professionals as a Junior Ruby on Rails Developer. In this role, you'll have the opportunity to work with cutting-edge technologies to develop robust API solutions and manage PostgreSQL databases. We are looking for enthusiastic individuals ready to learn and grow their skills in a collaborative environment.

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

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.

At Rylo, we are revolutionizing the way videos are captured and shared. Our cutting-edge camera technology, designed by an expert team comprising former engineers from Instagram and Apple, delivers stunningly smooth and shareable videos without the hassle of traditional videography. Our advanced stabilization software and user-friendly smartphone app enable you to focus on creativity rather than technicalities.As an Android Engineer, you will be an integral part of our dynamic team. We seek individuals who are not only problem solvers but also exceptionally organized, detail-oriented self-starters. Your communication skills will be key in collaborating with our talented team on exciting projects.If you have a passion for enhancing photography and videography through technology, we would love to hear from you!

Join us at Speechify as a Tech Lead for our Android Core Product team in San Francisco, California. In this pivotal role, you will lead a talented group of engineers to enhance and expand our Android application. You will be responsible for overseeing the development process, ensuring high-quality coding standards, and mentoring team members to foster their growth. This is an exciting opportunity to shape the future of our product and make a significant impact in the world of text-to-speech technology.

Be Part of the E-Commerce Revolution with Whatnot!Whatnot is the premier live shopping platform in North America and Europe, dedicated to enabling users to buy, sell, and explore their passions. We’re transforming the landscape of e-commerce by merging community engagement with shopping and entertainment in a tailored environment. Our remote, co-located teams are driven by innovation and guided by our core values. With operational hubs across the US, UK, Germany, Ireland, and Poland, we are collectively shaping the future of online marketplaces.From fashion, beauty, electronics to collectible items like trading cards and comic books, our live auctions cater to a diverse audience.And we’re just beginning! As one of the fastest-growing marketplaces, we seek innovative, proactive problem solvers across all departments. Stay updated on our journey via our news and engineering blogs, and help us empower individuals to transform their passions into thriving businesses while fostering community through commerce. Your RoleWe are excited to welcome Android Engineers to our Growth teams, focusing on both Seller and Buyer Growth at Whatnot.The Seller Growth Engineering team is dedicated to helping sellers convert their hobbies into successful enterprises by building intuitive tools and systems for onboarding and scaling their businesses on the platform.Buyer Growth is essential for Whatnot’s top-of-funnel success, emphasizing user acquisition, activation, retention, and re-engagement. This team collaborates closely with Product, Data, Design, and Marketing to seamlessly integrate new users into our ecosystem and foster loyalty.As an Android Engineer on the Growth team, you will create and enhance mobile experiences that are foundational to both seller and buyer engagement, focusing on scalability and trust. Your contributions will directly influence how thousands of new users find, start, and thrive on Whatnot every week.Build high-quality Android features using Kotlin and Jetpack Compose that enhance seller onboarding, verification, and incentive processes.Work collaboratively with product, design, and backend teams to establish goals, define project scopes, and navigate technical challenges.Collaborate with data science teams to design and analyze experiments that inform product decisions.

About the Role:As a Senior Android Software Engineer at Tools for Humanity, you will play a pivotal role in creating innovative applications that empower individuals in the AI age. You will collaborate with a talented team to develop high-quality, user-friendly Android applications that leverage our state-of-the-art technology. Your expertise will be critical in enhancing user experience and ensuring the security and privacy of our users.Key Responsibilities:Design, develop, and maintain robust Android applications.Collaborate with cross-functional teams to define, design, and ship new features.Continuously discover, evaluate, and implement new technologies to maximize development efficiency.Ensure the performance, quality, and responsiveness of applications.

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.

Join Reddit's Test Engineering team as a Senior Software Engineer, where you will play a pivotal role in ensuring the highest quality of software features. Collaborate with cross-functional teams to design and implement robust test automation frameworks and tools, while fostering a culture of quality across all engineering initiatives. Your expertise will help identify testing gaps and drive systemic improvements, enhancing our testing processes and infrastructure stability.

About Wispr FlowAt Wispr Flow, we are revolutionizing how individuals engage with their devices, making it as natural as conversing with a close friend. Our innovative voice dictation platform has become the preferred choice for users, who increasingly rely on it over traditional keyboards, thanks to its exceptional understanding and contextual awareness. As we look towards 2026, we aim to expand beyond dictation, developing a native actions framework that consistently comprehends user intent.Our team comprises a diverse group of AI researchers, designers, growth strategists, and engineers who are committed to reimagining human-computer interaction. We seek high-agency individuals who communicate transparently, prioritize user experience, and are detail-oriented. With a culture that encourages spirited discourse, we strive for truth-seeking and impactful results.Over the past year, we've achieved a remarkable 150% revenue growth each quarter and successfully raised $81 million from top-tier venture capital firms and renowned angel investors.

Join Stripe as an Android Engineer and be a part of our mission to accelerate the internet economy! In this role, you will work on innovative payment solutions that empower businesses to thrive. You will collaborate with cross-functional teams to design, develop, and optimize high-quality Android applications that enhance user experiences.

About the Role: We are seeking a talented Senior Android Application Software Engineer to join our dynamic team at Tools for Humanity. In this pivotal role, you will leverage your expertise in Android development to create innovative applications that enhance user experiences and contribute to our mission of building a real human network.Key Responsibilities:Design, develop, and maintain high-quality Android applications.Collaborate with cross-functional teams to define, design, and ship new features.Ensure the performance, quality, and responsiveness of applications.Identify and fix bugs, and optimize application performance.Engage in code reviews and mentor junior developers.Who You Are:Proficient in Kotlin and Java, with a strong understanding of Android SDK.Experience with RESTful APIs, third-party libraries, and JSON.Familiarity with version control tools, such as Git.Strong problem-solving skills and a passion for technology.Excellent communication and collaboration abilities.

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 the Role:We are seeking a talented and experienced Senior Software Engineer to join our dynamic team focused on developing cutting-edge financial products for Android. In this role, you will leverage your expertise in Android development to create innovative solutions that enhance user experience and drive our mission forward.Key Responsibilities:Design and implement scalable Android applications for financial products.Collaborate with cross-functional teams to define, design, and ship new features.Ensure the performance, quality, and responsiveness of applications.Identify and fix bugs, and enhance application performance.Stay up-to-date with new technology trends and best practices in mobile development.

Join our dynamic team at 360itprofessionals1 as a Full-Time Android Engineer! We are looking for a talented individual who is passionate about mobile development and has a strong foundation in SDK and User Interface design. This is an exciting opportunity to leverage your skills in a collaborative environment while contributing to innovative projects.

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 Statkraft, Europe's leading generator of renewable energy and a prominent player in the U.S. environmental commodities markets. Our commitment to fostering a low-carbon future drives us to innovate and develop cutting-edge solutions in renewable energy and environmental products. As a vital part of our Origination team, you will help source and manage long-term portfolios of renewable energy and environmental commodities, including carbon offsets and allowances.In the role of Junior Portfolio Manager for U.S. Renewable Energy Credits (RECs), you will spearhead the strategy development and execution under various state Renewable Portfolio Standards (RPS). You will oversee a dynamic REC product portfolio, support deal structuring, and collaborate with cross-functional teams to drive innovation and maximize value in the renewable energy sector.Key ResponsibilitiesDesign and implement strategies for U.S. REC markets, focusing on pricing, risk assessment, and market analysis.Manage and optimize a portfolio of REC contracts, ensuring alignment with commercial and risk objectives.Collaborate with originators to structure and price long-term offtake agreements and tailored REC solutions.Keep abreast of regulatory developments and market trends to refine strategies and uncover new opportunities.Engage with cross-functional teams to manage risks and identify synergies across power and renewable portfolios.Enhance portfolio management tools and contribute to the development of valuation and risk infrastructure.