Senior Full-Stack Ads Engineer

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‑mindful 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: 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. Perks And Benefits Of Working With Us Well‑funded and proven startup with large ambitions, competitive salary and upsides of pre‑IPO equity packages. Hopper covers 100% of the premiums for group insurance plan. Hopper offers life, short‑term and long‑term disability coverage. HSA that covers eligible medical and dental expenses. All employees and dependents have access to Dialogue’s telemedicine services, anytime, anywhere. All employees have access to an RRSP plan with automatic pre‑tax withdrawals per pay. Please ask us about our very generous parental leave, much above industry standards. Unlimited PTO. Carrot Cash travel stipend. Access to co‑working space on demand through FlexDesk AND Work‑from‑home stipend. Entrepreneurial culture where pushing limits and taking risks is everyday business. Open communication with management and company leadership. Small, dynamic teams = massive impact. More About Hopper At Hopper, we are on a mission to become the leading travel platform globally – powering Hopper’s mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world‑class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. The Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers – with 70% of its users being Gen Z and millennials. Through HTS, our B2B division, the company supercharges its partners’ direct channels by integrating our fintech products on their sites or powering end‑to‑end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more. Hopper has been named the #1 most innovative company in travel by Fast Company. Hopper is now the #3 largest online travel agencies in North America, and 70% of our app customers are Gen‑Z and millennial travelers. #J-18808-Ljbffr