Senior Full-Stack Ads Engineer - HTS Media Services

About HTS Media HTS Media is Hopper’s advertising and media division, built to help travel brands, destinations, and suppliers connect with travelers at scale. We power advertising placements across Hopper’s app and through our B2B partner network, which includes global brands like Capital One Travel and TripAdvisor. Our mission is to build the travel industry’s leading retail media network, turning advertising into a major driver of profitability for Hopper and our partners, much like Instacart, Uber, and Amazon have done in their sectors. We’re still in the early stages of our roadmap, yet HTS Media has already become one of Hopper’s fastest-growing and most profitable business units. The engineering team plays a pivotal role in scaling the platform, ensuring our ad tech products deliver measurable impact for advertisers and seamless experiences for travelers. About the Role As a Senior Full-Stack Engineer on the HTS Media team, you will be a key driver of innovation for our advertising products. Your core mission will be to build and test new ad experiences, owning the technology that delivers these features to travelers across the web. You will use Hopper's own website as an innovation lab, rapidly implementing and iterating on new ad formats and features to prove their effectiveness. You will then help package these successful innovations for our B2B partners by developing user-facing ad products, contributing to our Javascript SDK, and building the robust APIs that power everything. This role requires a product-minded engineer who is passionate about creating seamless user experiences and comfortable working across the full technology stack, from client-side rendering to backend API logic. Responsibilities - Innovate on Ad Products: Lead the development of new ad features and formats, from concept to execution. - Build on Hopper.com http://Hopper.com: Implement and test new ad experiences on Hopper’s website, serving as the proving ground for features that will be scaled to our partners. - Develop Core APIs: Design, build, and maintain the scalable APIs that serve ad content, handle user interactions, and collect performance metrics. - Contribute to Partner Integrations: Apply your expertise to the development of our client-side Javascript SDK, helping our partners seamlessly integrate HTS Media ad products. - Drive Technical Excellence: Set the standard for high-quality code, performance, and reliability for all our web-facing technologies. - Collaborate and Mentor: Work closely with product, design, and other engineers to ship high-impact solutions and provide technical guidance to the team. Experience - 5+ years of experience in full-stack development, with a proven track record of building and shipping complex, user-facing web applications. - Expertise in a modern backend language (e.g., Python, Node.js, Go) and a modern front-end framework (e.g., React, Vue, Svelte). - Deep proficiency in Javascript/TypeScript and a strong understanding of the web ecosystem (browsers, performance, security). - Strong experience designing and building robust APIs. - A product-centric mindset with a passion for building delightful and impactful user experiences. - Excellent communication skills and the ability to thrive in a collaborative, fast-paced environment. #LI-REMOTE Perks and benefits of working with us: - Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages. - Hopper offers employees enrollment to a Hopper sponsored Health Collective that includes options for basic medical and dental insurances, as well as options for deductibles. - Hopper offers private insurance coverage to supplement social security payments attributed to Accidental Death and Long term disability, including Excess and Gap insurances. - In lieu of a formal pension plan, Hopper will provide a cash allowance to put towards pension savings. - Please ask us about our very generous parental leave, muc