Fullstack Engineer for Seller Growth at whatnot

Join Whatnot as a Fullstack Engineer focusing on Seller Growth. In this role, you'll harness your expertise in both frontend and backend technologies to drive innovative solutions that enhance our seller platform.As a vital member of our team, you will collaborate closely with cross-functional teams to develop features that empower sellers, optimize their experience, and help grow their businesses on our platform.

Whatnot is looking for a Machine Learning Engineer focused on Growth to help shape the platform’s direction. This position is based in San Francisco, CA. Role overview This role centers on developing and applying machine learning solutions that support user experience improvements and drive business growth. Expect to work on projects that directly impact how users interact with the platform and contribute to key growth initiatives. What you will do Design and build machine learning models tailored to growth-related challenges Collaborate with teams to deliver solutions that improve user engagement Apply technical expertise to solve complex problems in a growing company Who this role suits This position is well-suited for engineers who are eager to take on new challenges and enjoy working in an environment where their work has a visible impact on business outcomes.

Join Whatnot as a Data Engineer specializing in Notifications, where your expertise will drive impactful data solutions. You'll be responsible for designing, building, and optimizing our data systems, ensuring reliable notifications for our users. In this role, you will collaborate with cross-functional teams to enhance user engagement through data-driven insights.

Whatnot is looking for a Machine Learning Engineer focused on Growth to strengthen data-driven decisions and support platform expansion. This position is based in San Francisco, CA. Role overview This role centers on developing machine learning solutions that help drive growth and refine user experiences. The work involves analyzing large and complex data sets, building predictive models, and implementing algorithms to improve platform performance. Collaboration Machine Learning Engineers in this role work closely with cross-functional teams. Expect to partner with colleagues across product, engineering, and analytics to translate business needs into technical solutions. Key responsibilities Analyze data to uncover trends and insights that inform product direction Develop and deploy predictive models to support growth initiatives Implement algorithms that optimize platform performance and user experience

Join Whatnot as a Software Engineer specializing in Data. In this pivotal role, you will harness your technical expertise to develop innovative solutions that enhance our data capabilities. Collaborate with cross-functional teams to design, implement, and optimize data-driven applications that will support our growing user base.The ideal candidate will have a passion for technology and a drive to improve processes through data insights. This is a unique opportunity to shape the future of our platform and make a significant impact on our business.

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.

Join Whatnot as a Data Engineer specializing in Notifications. In this role, you will be pivotal in enhancing our notification systems to deliver real-time updates and improve user engagement. Your expertise will help shape our data architecture and optimize our processes, ensuring we provide the best experiences for our customers.

Whatnot is a livestream shopping marketplace connecting buyers and sellers across categories such as trading cards, fashion, electronics, and live plants. The platform supports sellers in building real businesses and is shaping live commerce at scale in North America and Europe. The team works as a distributed group with members based in the US, UK, Ireland, Poland, Germany, and Australia. Agility, user focus, and meaningful work are central to the company culture. Whatnot has been recognized among the fastest growing marketplaces and was named the #1 Best Startup Employer in America by Forbes. Learn more about Whatnot through these resources: Core Values NYT: Fastest Growing Marketplaces Forbes: Best Startup Employer Whatnot News Engineering Blog Role overview The Software Engineer - Machine Learning Infrastructure role centers on building and improving the systems that support machine learning and self-hosted large language model applications at Whatnot. This position involves close collaboration with machine learning scientists to bring advanced models into production, directly enabling new product features and experiences. What you will do Design and develop infrastructure for reliable and efficient machine learning at scale Work on low-latency serving of large models Support distributed training and high-throughput GPU inference Help advance Whatnot’s mission to unlock new capabilities through AI and machine learning Location San Francisco, CA

As an Executive Recruiter at Whatnot, you will play a pivotal role in shaping our team by identifying and attracting top-tier talent. Your expertise in recruitment will help us build a diverse and high-performing workforce. You will collaborate closely with hiring managers to understand their needs and develop effective sourcing strategies. Your ability to engage candidates and promote our company culture will be key to our success.

Whatnot is seeking a dynamic Leadership Recruiter to join our innovative team in San Francisco. In this role, you will be responsible for identifying and attracting top-tier leadership talent that aligns with our company culture and strategic goals. You will work closely with hiring managers to understand their needs and develop tailored recruitment strategies that drive results.

Embark on a Journey with Whatnot - The Future of Commerce!Whatnot stands as the premier livestream shopping platform across North America and Europe, where enthusiasts can buy, sell, and explore their favorite items. From trading cards to fashion, electronics, and even live plants, our platform empowers sellers to create genuine businesses across a myriad of categories. We are pioneering live commerce in the West, crafting an industry without a blueprint, and our team is pivotal in shaping this exciting frontier.Operating as a remote co-located team, we draw inspiration from our core values while maintaining hubs in the US, UK, Ireland, Poland, Germany, and Australia. Our agility allows us to stay close to our users and prioritize impactful work.Recognized as one of the fastest-growing marketplaces, we are proud to have been named the #1 Best Startup Employer in America by Forbes. Stay updated with Whatnot by checking our news and engineering blogs, and join us in empowering individuals to transform their passions into thriving businesses while fostering community through commerce. Your RoleAs a Recruiter on our Early Talent team, you will collaborate with various departments to establish strategic recruitment processes, enhance our brand presence, and build enduring relationships with emerging talent worldwide.Collaborate with engineering hiring managers to devise targeted hiring strategies that attract top early-career talent.Oversee the complete recruitment process, including conducting interviews, managing offers, and supervising intern programs.Serve as a brand ambassador for Whatnot at university and early-career events, with travel required during peak campus times.Refine the early talent recruiting process by gathering and implementing feedback from candidates and other insights.Foster long-term relationships with high-potential candidates by understanding their aspirations and aligning them with opportunities at Whatnot.

Be Part of the Next Wave in Commerce with Whatnot!Whatnot stands as the largest livestream shopping platform across North America and Europe, empowering users to buy, sell, and discover cherished items. From trading cards to fashion, electronics, and even live plants, our sellers are crafting genuine businesses across a multitude of categories. We are pioneering live commerce on a scale previously unseen in the Western market, creating a new industry framework from the ground up.Our remote co-located teams are driven by our core values and are strategically positioned in hubs throughout the US, UK, Ireland, Poland, Germany, and Australia. We prioritize speed, maintain close connections with our users, and concentrate on impactful work.Recognized as one of the fastest-growing marketplaces, Whatnot has recently been honored as the #1 Best Startup Employer in America by Forbes. Stay updated with our latest news through our blog and engineering insights, and join us in transforming passion into business and uniting people through commerce. Role OverviewIn the role of Early Talent Recruiter, you will collaborate with various teams across the organization to create innovative recruitment strategies, enhance our employer brand, and foster enduring relationships with early talent worldwide.Work closely with hiring managers in Engineering to devise focused hiring strategies that attract premier early career talent.Oversee the complete recruitment process—conducting interviews, managing offers, and supervising intern programs.Serve as a Whatnot brand ambassador at university and early career events, with required travel during peak campus recruitment seasons.Enhance the recruitment experience by integrating candidate feedback, refining the early talent hiring process for optimal results.Cultivate lasting connections with high-potential candidates by understanding their aspirations and career goals.

Join Whatnot as a Senior Technical Recruiter, where you will play a crucial role in shaping our engineering teams by attracting and hiring top-tier talent. Your expertise in technical recruitment will drive our growth and innovation as we strive to build an exceptional platform for our users.In this role, you will collaborate closely with hiring managers, develop sourcing strategies, and engage with candidates to ensure a seamless hiring process. You will be instrumental in enhancing our employer brand and ensuring a positive candidate experience.

Step into the Future of Commerce with Whatnot!Whatnot stands as the premier livestream shopping platform across North America and Europe, dedicated to helping enthusiasts buy, sell, and discover their favorite items. From trading cards to fashion, electronics to live plants, our diverse sellers are crafting genuine businesses across an array of categories. We’re pioneering live commerce on an unprecedented scale in the West, charting a course that has never been navigated before. The talent here is actively shaping the evolution of a groundbreaking industry.As a dynamic remote co-located team, we are inspired by our core values and are anchored in hubs throughout the US, UK, Ireland, Poland, Germany, and Australia. We prioritize agility, maintain close connections with our users, and focus on impactful work.Recognized as one of the fastest-growing marketplaces, Whatnot has also been honored as the #1 Best Startup Employer in America according to Forbes. Stay updated on Whatnot’s latest developments through our news and engineering blogs as we empower individuals to transform their passions into flourishing businesses and unite people through commerce. Your Role and ResponsibilitiesEnhance Onboarding Operations. Oversee the entire onboarding process including welcome communications, I-9 verification, swag distribution, and IT setup. Continuously refine the process as our team expands.Facilitate In-Person Orientation. Work alongside Talent Programs to design and implement engaging onboarding experiences at our San Francisco hub.Drive Cross-Functional People Ops Initiatives. Collaborate with Finance, Total Rewards, IT, Legal, Recruiting, and People Business Partners to strategize and execute key People Ops projects.Ensure Data Integrity. Manage Workday transactions related to job changes, departures, and compensation updates, maintaining accurate and audit-ready records.Develop Scalable Processes. Identify and address gaps in onboarding, offboarding, and core People Operations functions.

Embrace the Future of Commerce with Whatnot!Whatnot stands as the premier live shopping platform across North America and Europe, where enthusiasts can buy, sell, and discover their favorite items. We are revolutionizing e-commerce by merging community, shopping, and entertainment into a unique experience tailored just for you. As part of a remote-first, co-located team, we drive innovation while being firmly rooted in our core values. With operational hubs in the US, UK, Germany, Ireland, and Poland, we are collaboratively shaping the future of online marketplaces.From fashion and beauty to electronics and collectibles like trading cards and comic books, our live auctions cater to a diverse audience.And this is just the beginning! As one of the fastest-growing marketplaces, we invite bold and innovative problem solvers to join us across various functions. Stay updated with the latest Whatnot developments on our news and engineering blogs, and be part of our mission to empower individuals to transform their passions into businesses, fostering connections through commerce. Your RoleThe Seller Growth team is dedicated to expanding our seller base on Whatnot, allowing them to turn hobbies into thriving businesses. Within this team, the Platform pod plays a crucial role in ensuring that this growth is sustainable, reliable, and scalable.As a software engineer on the Seller Growth Platform pod, you will be instrumental in designing and developing systems that form the backbone of our new seller onboarding process. Your responsibilities will include:Fraud Prevention: Create and scale systems for identity verification, fraud detection, and automated trust/risk assessments to protect buyers while facilitating seamless experiences for legitimate sellers.Trust and Safety: Ensure that the influx of new sellers can operate successfully without compromising the buyer experience, while actively preventing misconduct and abuse of incentives.Smart Platform Insights: Enhance accurate seller identification through data enrichment, signal processing, and predictive lifetime value models to direct sellers to optimal onboarding, incentives, and discovery pathways.Scalable Infrastructure Development: Collaborate with Data Science and other teams to build robust systems that can support our growing seller ecosystem.

About Us:At LangChain, we are on a mission to revolutionize the presence of intelligent agents in everyday applications. We provide robust solutions for agent engineering, enabling developers to transform their prototypes into production-ready AI agents that organizations can depend on. Originating as widely embraced open-source tools, we have expanded to also deliver a comprehensive platform for building, evaluating, deploying, and managing agents on a large scale.Our tools, including LangChain, LangGraph, LangSmith, and Agent Builder, are trusted by teams developing real AI products across various sectors, from startups to large enterprises. We are proud that millions of developers utilize LangChain to support AI initiatives at prominent companies such as Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.Having raised $125M in Series B funding from leading investors like IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we are at an exciting juncture, continuously innovating and expanding our product offerings. Each team member has the opportunity to make a significant impact on our growth and collaborative culture. At LangChain, your contributions can redefine how technology interacts with the real world.About the Role:We are looking for a Senior Fullstack Engineer to join our newly established team focused on developing foundational product features and integrations that enhance user acquisition, foster rapid experimentation, and enable self-service expansion. This pivotal role involves building growth systems from the ground up, working closely with cross-functional teams including product, design, GTM, and analytics to streamline user activation, optimize product offerings, and create a seamless growth narrative for both developers and enterprise clients. This position requires on-site presence five days a week in New York City, San Francisco, or Boston.Your Responsibilities:Engage across our technology stack (React, TypeScript, Python, Go) to develop full-stack product features that enhance growth and user retention.Create adaptable experimentation systems and processes that target a variety of growth metrics.Engage in data-driven, rapid growth experiments throughout the user journey, from onboarding to monetization.Design and implement new onboarding features and enhancements that quicken the user’s time to value.Develop growth mechanisms, including usage-based guardrails, intelligent upgrade prompts, and contextual calls-to-action.Collaborate closely with product, design, GTM, and analytics teams to identify, prioritize, and execute impactful growth initiatives.

About Scribd:At Scribd Inc. (pronounced “scribbed”), we are driven by a mission to ignite human curiosity and foster knowledge sharing. Join our innovative team as we craft a world enriched with stories and insights, democratizing the exchange of ideas through our diverse products: Everand, Scribd, Slideshare, and Fable.This job opening represents a confirmed, active position within our organization.We cultivate a culture where authenticity and boldness thrive; where we engage in meaningful debates and embrace unexpected challenges. Every team member is empowered to take initiative as we prioritize our customers' needs.Our workplace philosophy emphasizes a balance between individual flexibility and community engagement. With our Scribd Flex benefit, employees can collaborate with their managers to choose a work style that suits their personal needs. Key to Scribd Flex is our commitment to intentional in-person interactions, which are vital for fostering collaboration, culture, and connections. Thus, occasional in-person attendance is expected from all Scribd employees, regardless of their remote work location.What do we seek in our new team members? We value “GRIT”—the combination of passion and perseverance toward achieving long-term goals. At Scribd, we recognize the potential this mindset unlocks and encourage our employees to embody a GRIT-ty approach in their work. This means setting and achieving Goals, delivering Results in their responsibilities, contributing Innovative solutions, and positively influencing our broader Team through collaboration and a constructive attitude.Join Our Growth Platform TeamThe Growth Platform team at Scribd empowers marketers, lifecycle teams, and partner channels by providing MarTech solutions that enhance efficiency, enable data-driven decisions, and support scalable user acquisition across our brands: Scribd, Everand, SlideShare, and Fable.Our focus is on building and maintaining robust systems that facilitate campaign execution, optimize landing pages, manage tracking and attribution, and integrate with third-party tools for cross-channel marketing and analytics. We prioritize scalability, performance, and reliability, ensuring our partners have the necessary tools to drive user growth. Our team values collaboration, pragmatic solutions, and a commitment to continuous improvement.

Whatnot is hiring an Engineering Manager, Buyer to join the team in San Francisco, CA. This position leads the engineering group focused on buyer-related processes and technology. Role overview This role centers on guiding and supporting engineers, with a focus on improving systems that power the buying experience. The Engineering Manager will influence technology direction and help shape day-to-day operations for the team. Key responsibilities Lead and mentor a group of engineers working on buyer-facing products and systems Drive improvements to the technology and processes that support buying operations Help define strategies for technical growth and operational excellence Location This position is based in San Francisco, CA.

Join Whatnot as a Staff Software Engineer and play a crucial role in driving innovation and excellence in our technology team. In this position, you will collaborate with cross-functional teams to design, develop, and enhance software solutions that elevate our platform.Your expertise will be pivotal in guiding junior engineers, contributing to architectural decisions, and ensuring high-quality code standards. We are looking for individuals who are passionate about technology and eager to learn and grow within a dynamic environment.

Join Whatnot as a Software Engineer focused on inventory experience, where you will play a crucial role in enhancing our inventory management systems. You will collaborate with a dynamic team to build scalable solutions that improve the user experience and streamline operations.In this position, you will apply your technical skills to develop robust applications, implement best practices in software design, and contribute to our mission of delivering exceptional service to our users.