Senior Backend Software Engineer - Payments & Fraud

Hopper
RemotePosted 24 February 2026

Job Description

About the jobHopper Technology Solutions (HTS) Checkout combines market-leading payment services and best-in-class fraud detection to enhance the travel experience for users and drive revenue for partners. Our hosted checkout solution offers global coverage and currency support, a comprehensive suite of payment methods and an industry-leading anti-fraud technology.We are seeking a senior backend software engineer with experience building scalable and robust systems to join our team. As part of a cross-functional team of exceptional engineers and product managers, you will develop new features and provide best-in-class support to help our partners scale their businesses.Tech stack:Our backend systems are written in Scala, and we use a suite of GCP services with extensive use of GKE, Pub/Sub, BigQuery, and SpannerContainerized microservices architecture with over 200+ services running primarily in Google Cloud KubernetesWe are heavily data-driven, making extensive use of tools like Amplitude, BigQuery, and DatadogWhat would your day-to-day look likeDesign, build and review code for our fraud and abuse backend platformIterate on features using Scala (no prior experience required) and technologies within GCPShip your first code in days, iterating on features in an agile mannerOperate autonomously but work closely with engineers and PMs to ensure high alignmentCollaborate cross-functionally with the product team and other Hopper teamsWe operate with few meetings and emphasize strong alignment and asynchronous decision makingAn ideal candidate has4+ years of experience building scalable backend systemsA strong understanding of distributed systems and how architectural decisions affect performance and maintainabilityThe ability to work with minimal guidance, be proactive and to handle uncertainty, ambiguity and the challenge of quickly evolving goalsExcelled in cross-functional teams, working fluidly with Product Managers, Data Scientists, Frontend Engineers, and other highly skilled specialistsPrior experience in the payments and fraud space a plusPerks and benefits of working with us:Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages.Unlimited PTO.Carrot Cash travel stipend.Flexdesk All Access Pass & 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.#LI-REMOTEMore about HopperAt 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 th ... (truncated, view full listing at source)
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