Software Engineer II - Android Developer

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 Pinterest:At Pinterest, millions of users worldwide discover creative ideas, envision new possibilities, and plan unforgettable moments. Our mission is to inspire everyone to create a life they love, starting with our dedicated team behind the product.Join us in a career that encourages innovation for millions, transforms passion into growth opportunities, celebrates diverse experiences, and embraces flexibility to perform at your best. Crafting a career you love? It’s within reach.At Pinterest, AI is not just a tool; it's a transformative partner that enhances our creativity and expands our influence. We seek candidates eager to engage with this technology. Throughout our interview process, we value your ability to articulate your methodologies, showcasing how you think and collaborate with AI.For more insight into our AI interview philosophy and its role in our recruitment process, click here.We are in search of an Engineering Manager I to lead a dynamic team focused on developing and maintaining Pinterest’s mid-funnel advertising products, including Max-Width Collections, Promoted Board Takeover, Collage Ads, Ads Modules, Showcase Ads, and Quiz Ads. This role will oversee a portfolio of revenue-critical and time-sensitive products, guiding both the technical direction and execution necessary for delivering high-quality, scalable solutions.

Join Pinterest as a Staff Software Engineer focused on Ads Measurement Products. In this role, you will be at the forefront of developing innovative solutions that enhance our advertising strategies and improve our measurement capabilities. Your expertise will directly impact how we analyze and optimize campaigns, ensuring that our advertisers can achieve their goals effectively.

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.

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.

Join Pinterest as a Senior Product Manager for Ads Formats and play a pivotal role in shaping the future of our advertising solutions. In this role, you will lead cross-functional teams to innovate and enhance ad formats that drive engagement and performance for our users and advertisers alike.Your responsibilities will include analyzing market trends, collaborating with designers and engineers, and leveraging data-driven insights to inform product strategy. You will be at the forefront of developing features that not only meet business objectives but also delight our users.

Exciting OpportunityUnity is embarking on a transformative journey to enhance its capacity to directly assess the effectiveness of its advertising solutions—specifically measuring whether a particular ad led to an installation—without solely depending on third-party mobile measurement partners (MMPs). We are seeking a Principal Engineer for Ads Measurement to spearhead this initiative. This position entails owning the vision and implementation of Unity's self-attribution capabilities, facilitating independent ad performance measurement, cultivating reliable sources of truth for AI/ML optimization, and establishing a clear, deliberate relationship with the MMP ecosystem. This key leader will work at the nexus of advertising, data science, platform strategy, and developer trust, influencing how Unity measures, interprets, and enhances advertising outcomes in an intricate and dynamic measurement environment.Key ResponsibilitiesArchitect Unity’s Measurement Infrastructure: Design and execute a scalable technical framework essential for independent measurement of install attribution and ad effectiveness.Enhance Self-Attribution Capabilities: Lead the engineering initiatives to create internal attribution signals and ensure reliable, privacy-conscious install measurement across various platforms.Drive AI/ML Optimization: Work closely with data science and machine learning teams to guarantee that measurement data is of high quality and optimally structured for model training.Establish Technical Strategy for MMP Ecosystem: Define technical integration standards for Unity as a self-attributing network, ensuring secure and consistent data exchanges within the broader ecosystem.Foster Cross-Functional Technical Leadership: Ensure alignment across Ads, Data, Engineering, and Privacy teams, making measurement a robust strategic asset.

The Opportunity Join the Ads Infrastructure team at Unity, where we design and manage the foundational distributed systems that drive one of the largest real-time advertising platforms globally. Our infrastructure is integral to every aspect of Unity Ads, enabling segmentation, optimization, bidding, traffic routing, experimentation, and analytics on a worldwide scale. We are committed to developing resilient, scalable, and cost-effective systems capable of handling immense traffic volumes across multiple regions while adhering to strict latency and availability standards. Utilizing advanced technologies including Kubernetes, Kafka, Flink, Starrocks, Valkey, and other cloud-native components, our platform supports engineers, data scientists, and product teams in advancing Unity Ads. This senior individual contributor role will have a significant technical impact across the organization. You will be responsible for making essential architectural decisions, guiding the long-term evolution of our platform, and collaborating with senior managers and directors to shape the technical vision of Ads Infrastructure while remaining actively involved in hands-on development.

Pinterest is looking for a Senior Staff Software Engineer to focus on Ads Measurement. This role involves designing and building systems that enhance the way advertisers assess and understand the performance of their campaigns. The work directly shapes the tools and insights available to advertisers on the platform. What you will do Create and implement systems that improve ads measurement capabilities Work closely with engineering, product, and analytics teams to refine measurement strategies Support efforts to provide advertisers with clear and reliable insights into the impact of their campaigns Locations Seattle, WA, US Palo Alto, CA, US San Francisco, CA, US

Twitch Interactive, Inc. seeks a Software Engineer I to join the Ad Supply Experiences team in San Francisco, CA. This position centers on building and improving systems that support ad delivery and encourage user engagement throughout the Twitch platform. Role overview The Software Engineer I will take part in developing and refining technology that optimizes how ads are delivered. The work involves both creating new features and maintaining existing systems to ensure smooth operation and a positive experience for users and advertisers alike. What you will do Design and implement scalable solutions for ad delivery infrastructure Collaborate with fellow engineers to improve system performance and reliability Share ideas and contribute code within a team-oriented environment

Amplitude stands as the premier AI analytics platform, empowering over 4,700 clients—including industry leaders like Atlassian, Burger King, NBCUniversal, Square, and Under Armour—to create superior products and digital experiences. Our platform integrates powerful AI Agents, enabling teams to analyze, test, and optimize user experiences with unprecedented speed. Recognized as the top solution across various categories in G2’s Fall 2025 Report, Amplitude excels for product, data, and marketing teams alike. Discover more at amplitude.com.At Amplitude, we prioritize delivering value to our customers through our core values. We foster an environment rooted in humility, ownership, and a growth mindset, ensuring that our customers remain at the heart of our endeavors.Commitment to Diversity, Equity, and Inclusion (DEI): Amplitude recognizes that diversity enhances product development, problem-solving, and solution effectiveness. We are dedicated to cultivating an inclusive atmosphere—centered on psychological safety, empathy, and human connection—where employees from all backgrounds can thrive.The Developer Experience (DX) team at Amplitude is responsible for building and maintaining the essential frameworks that facilitate developer integration, extension, and trust in Amplitude across various platforms. Our mission is to ensure that Amplitude's SDKs are reliable, user-friendly, and enjoyable to work with, allowing customers to instrument their products confidently and extract insights at scale.We are in search of a Staff Software Engineer specializing in Android to take on a pivotal technical leadership position within our DevEx team. In this role, you will be instrumental in designing and developing Amplitude’s core Android SDKs, including Analytics and Session Replay, and serve as the go-to Android platform expert for other SDK teams, such as Experiment, Guides, and Surveys.As a Staff Engineer, you will operate within a broad scope and with significant impact: setting the technical vision for the Android platform, steering cross-SDK architecture, enhancing performance and reliability, and elevating the developer experience throughout Amplitude’s mobile ecosystem.

Discord serves over 200 million users each month for a multitude of reasons, but one unifying activity stands out: gaming. With over 90% of our community engaging in gaming, they collectively spend an astonishing 1.5 billion hours playing thousands of unique titles on our platform each month. As a pivotal player in the gaming landscape, Discord is dedicated to enhancing the experience of connecting and sharing moments before, during, and after gameplay.We are seeking a talented, innovative, and results-driven Senior Software Engineer to become part of our dynamic Ads team.This team is at the forefront of transforming user interactions on our platform through cutting-edge advertising formats, including Quests. Our mission revolves around crafting extraordinary user experiences while scaling our platform to unprecedented success. These innovative products empower us to generate revenue by creating a mutually beneficial ecosystem for game developers, players, and Discord. Join us in defining the future of digital advertising and marketplace interactions!To dive deeper into Discord Engineering, explore our engineering blog!

About the TeamJoin the Applied team at OpenAI, where we are dedicated to responsibly deploying groundbreaking technology. Our products, including ChatGPT, Sora, and the OpenAI API, are transforming industries by offering advanced capabilities such as GPT-5 and a robust suite of multimodal features spanning text, image, audio, and video. We manage extensive platform infrastructure and large-scale inference systems that cater to our global user base. As we continue to innovate, our influence in the tech world expands.Our clients are leveraging our APIs to fuel rapid business growth, unlocking previously unimaginable product functionalities. With offerings like ChatGPT and Sora, we showcase the potential of our technology across diverse media experiences. As we enhance these capabilities, we remain committed to ethical practices, prioritizing responsible deployment over unregulated expansion.As a member of the Applied Engineering team, the Ads Monetization group within Financial Engineering focuses on developing core systems that manage the financial aspects of ChatGPT Ads. These systems are designed for low-latency, high scale, and exceptional reliability, all while ensuring accuracy, auditability, and transparency in financial operations. This role integrates ad delivery, data engineering, and financial systems.Key Responsibilities:Design and implement the foundational monetization systems for ChatGPT Ads.Create and manage the core services and pipelines that facilitate ads monetization from event capture and validation to pricing, metering, and generating billable outputs.Establish and maintain the definitive source of truth for ads monetization data, including schemas, data models, and invariants to ensure consistency, transparency, and auditability.Oversee accuracy and reconciliation: align production outputs with invoicing and finance requirements, develop controls and monitoring systems, and address discrepancies through investigative efforts.Engage in full-stack development to create comprehensive billing solutions for our ChatGPT and API clients.Collaborate effectively with various stakeholders, including Ads Engineering, Data Science, Product, Finance, and Go-To-Market teams, as well as fellow engineers.Ideal Candidate Qualifications:At least 5 years of professional software engineering experience.Proficiency in designing scalable software systems with a focus on reliability and accuracy.Strong collaborative skills to work effectively in a cross-functional team environment.Experience with financial systems and data engineering principles is a plus.

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.

About UsAt XOXO AI, we are at the forefront of innovation, creating intelligent interfaces that enhance everyday life. Our team, comprised of dedicated engineers, designers, and researchers, is committed to solving unique challenges that extend beyond the workplace.With recent advancements in infrastructure, architecture, and machine learning models, we are expanding our team to include skilled builders who will help bring our vision to fruition through the development of our application layer.About the RoleWe are seeking a highly skilled Android engineer to spearhead the development of XOXO's consumer application, which features a revolutionary interface for intelligence. This position is tailored for a proactive engineer who will manage the entire mobile ecosystem, focusing on architecture, performance, refinement, and a visually captivating design system that ensures intentional user interactions.Your background is less important than your passion and drive: a commitment to high ownership, an ability to work swiftly without compromising quality, and a desire to create a mobile product that redefines excellence in craftsmanship and performance.What You’ll DoDesign and launch initial versions of our React Native application, advancing it from prototype to production.Convert a sophisticated visual design system into reusable components, animations, and interaction patterns, ensuring seamless performance.Develop new product interfaces that integrate cutting-edge AI/ML capabilities in a manner that feels intuitive on mobile devices.Enhance application performance across various dimensions: rendering, start-up speed, memory usage, battery consumption, networking, and user-perceived speed.Establish high standards for mobile engineering quality, including testing, instrumentation, and release management, collaborating closely across the tech stack to deliver end-to-end solutions.

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.

Exciting OpportunityWe are seeking a talented Senior Full-Stack Engineer to become a pivotal individual contributor on our Ad Unit team. In this role, you will take ownership of comprehensive ad features that encompass ad unit logic, mobile SDK integration, and event gateway services.This is your chance to work at the thrilling intersection of SDK development, machine learning, and data infrastructure. Join us in crafting innovative solutions that advance advertising technology, influencing billions of ad experiences worldwide while prioritizing privacy and compliance.

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.