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Hopper Logo Hopper · IT - Software Development

Senior Fullstack Software Engineer - Payments & Fraud

Spain · Job Posted February 21, 2026
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Job Description

Hopper Technology Solutions (HTS) Checkout combines market-leading payment services, best-in-class fraud detection, and digital wallet capabilities 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, industry-leading anti-fraud technology, and an integrated wallet designed to boost loyalty. We are seeking a fullstack software engineer (Frontend leaning) with expertise in building high-quality web applications from the ground up. 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.

Job Responsibility

  • Design, build and review code for our HTS Checkout web frontend
  • Operate autonomously but work closely with your fellow engineers as well as PM to ensure high alignment
  • Explore engineering improvements for the team and the product
  • Collaborate cross-functionally with the product team and other Hopper teams

Requirements

  • Senior-level experience & familiarity with React
  • The ability to effectively drive towards a solution in a thoughtful and creative manner
  • The ability to work autonomously, iterate on solutions, and manage different contexts
  • Dealt with ambiguity and can balance building out multiple features at once without jeopardizing the quality of the code

What we offer

  • Well-funded and proven startup with large ambitions, competitive salary, upsides of pre-IPO equity packages
  • Hopper covers the cost of employee premiums for private medical and dental coverage
  • Hopper also offers private life and accident coverage
  • generous parental leave, much above industry standards
  • Access to co-working space on demand through FlexDesk AND Work-from-home stipend
  • Unlimited PTO
  • Hopper offers a monthly cash allowances for gym memberships and to cover home-office expenses for a comfortable remote working experience
  • Carrot Cash travel stipend
  • Entrepreneurial culture where pushing limits and taking risks is everyday business
  • Open communication with management and company leadership
  • Small, dynamic teams = massive impact
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