JOBSEARCHER

Fullstack Engineer - Remote

WiraaDenver, CORemoteL6 LeadOctober 19th, 2026
About The Company: Join the Future of Commerce with Whatnot! Whatnot is the largest live shopping platform in North America and Europe, revolutionizing the way people buy, sell, and discover products across a wide range of categories including trading cards, fashion, electronics, and live plants. Our platform empowers individual sellers to build genuine businesses, creating vibrant communities and fostering economic growth. As a pioneering company in live commerce, we are setting new standards for scale and innovation, developing an industry that has no existing playbook. Our team comprises passionate professionals dedicated to shaping the future of online shopping and community engagement. Operating remotely with hubs across the US, UK, Ireland, Poland, Germany, and Australia, Whatnot values agility, close collaboration, and a user-centric approach. Recognized as one of the fastest-growing marketplaces, we were recently named the #1 Best Startup Employer in America by Forbes. We continuously strive to improve our platform, share our insights through blogs, and enable users to turn their passions into thriving businesses. Our mission is to bring people together through commerce, fostering a dynamic environment where innovation and impact are at the forefront.
About The Role: The App Platform team at Whatnot is responsible for building and maintaining the foundational infrastructure that supports all product teams across iOS, Android, and Web platforms. This team focuses on creating a reliable, scalable, and consistent environment that allows product pods to innovate rapidly without compromising quality. Responsibilities include managing app stability, observability, localization, core components, and shared architecture to ensure high performance and uniformity across all applications. As a Fullstack Engineer on the App Platform, you will work on critical infrastructure components such as scaling backend services, enhancing networking and data persistence layers, improving client testing frameworks, and reducing app crashes. Your collaboration with product teams will ensure that building on our platform is both efficient and aligned with best practices. This role offers an opportunity to influence multiple teams and contribute to systems used by thousands of users, making it a high-impact position for an engineer passionate about platform development and user trust. We support flexible work arrangements, including remote work and office presence in New York or Seattle, with an emphasis on in-person collaboration for planning and problem-solving. Candidates should reside within commuting distance of these hubs to facilitate effective teamwork and engagement.
Qualifications:
  • 5+ years of professional software development experience
  • Bachelor's degree in Computer Science, related field, or equivalent work experience
  • Proficiency in web development with React and experience using GraphQL for API development
  • Experience with modern frontend frameworks (exposure to Next.js is a plus)
  • Backend expertise with Node.js or Python, and experience with Postgres databases is preferred
  • Strong product instincts with a user-first mindset
  • Demonstrated ability to maintain systems at scale and optimize for quality and productivity
  • Experience mentoring team members and fostering inclusive team environments
  • Ownership of projects from inception through deployment and ongoing improvement
  • Proven track record of shipping features rapidly and efficiently
  • Excellent problem-solving skills and ability to operate autonomously
  • Quick learner with the ability to adapt to new technologies
  • Strong communication skills and collaborative mindset
Responsibilities:
  • Develop and maintain scalable backend services to support platform growth
  • Enhance networking, data persistence, and client testing frameworks to improve app stability
  • Drive initiatives to reduce app crashes and improve overall user experience
  • Collaborate closely with product teams to ensure platform features are built efficiently and effectively
  • Contribute to the design and implementation of shared architecture components and core systems
  • Maintain high standards of code quality, documentation, and testing
  • Participate in incident response, monitoring, and continuous platform reliability improvements
  • Mentor junior engineers and promote best practices within the team
  • Own projects from conception to deployment, ensuring timely delivery and quality
  • Stay updated with emerging technologies and incorporate them into the platform as appropriate
Benefits:
  • Generous holiday and time-off policies to promote work-life balance
  • Health insurance options including Medical, Dental, and Vision coverage
  • Support for remote work with home office setup allowance
  • Monthly stipends for cell phone and internet expenses
  • Wellness allowances to support mental and physical health
  • Annual childcare allowance to assist working parents
  • Lifetime benefits for family planning, including adoption and fertility expenses
  • Retirement plans including 401(k) with employer matching (up to 4%) in the US and pension schemes internationally
  • Opportunities for personal growth through continuous learning and development
  • Participation in a vibrant, innovative company culture focused on impact and collaboration
  • Dogfooding budget to encourage employees to engage with and understand our products deeply
  • Paid parental leave of 16 weeks plus a gradual return to work program
Equal Opportunity Whatnot is proud to be an Equal Opportunity Employer. We value diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability, or any other protected characteristic.