Senior Full Stack Product Engineer

What your day-to-day would look like

• Identify and execute improvements to the codebase that make it easier for both humans and AI agents to move fast and ship safely.
• Work with a group of senior engineers in a low-process environment powered by trust and autonomy.
• Drive decisions and consensus asynchronously with thoughtful documentation and specs.
• Build new features from top to bottom — from UX to database. Ship fast. Learn fast. Repeat.
• Architect scalable solutions and foundational patterns that let us efficiently launch new partner experiences.
• Work directly with PMs and business partners to define and refine our roadmap. Your voice and technical vision matter.
• Collaborate with a diverse group of people, giving and receiving feedback for growth.

An ideal candidate has

• A natural drive to fearlessly dive into an unknown codebase and deliver results fast.
• Strong product thinking — your conception of quality and architecture is anchored in the customer experience, not in technical elegance for its own sake.
• The ability to direct AI agents and automated workflows to build and maintain complex systems, and the judgment to know when to step in and when to let them run.
• Experience designing the guardrails and feedback loops that keep AI-assisted development productive and reliable.
• Experience with, or a mastery-level willingness to learn, distributed system development in Scala.
• The ability to articulate not just how you'd solve a problem, but why, and what tradeoffs you're accepting.

🇦🇷 Contractor Disclosure: Argentina 🇦🇷

This position is offered as an Independent Contractor role (Locación de Servicios) based in Argentina, supporting the Hopper Cloud / HTS (Hopper Technology Solutions) business unit. The successful candidate will engage with Hopper as an independent service provider and will not be considered a legal employee under Argentine Labor Law. Consequently, the contractor is solely responsible for their own equipment, workspace, and compliance with all local tax and social security obligations, including registration and payments under the Monotributo or Régimen General (AFIP). This engagement is governed by a commercial service agreement and does not carry eligibility for company-sponsored benefits, statutory 13th-month salary (Aguinaldo), or paid vacation (Vacaciones pagas) typical of a traditional employment relationship.

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. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions – helping people travel better and save more on their trips.

The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. he 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.

While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we’ve grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world’s largest brands.

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.

Here are just a few stats that demonstrate the company’s recent growth

Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS’ channels every year.

Our fintech products – including Cancel for Any Reason and Flight Disruption Assistance – have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions.

Almost 30% of our app customers purchase at least one fintech product when making a booking; and consumers are 1.6x more likely to repurchase if they add fintech to their booking vs if they booked just travel.

Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business.

Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper’s fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more.

Hopper has been named the #1 most innovative company in travel by Fast Company Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agencies in North America and 70% of our app customers are Gen-Z and millennials travelers.

Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials.…