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Hopper

Fullstack Software Engineer – Commerce/Partner Success

Hopper

Fullstack Software Engineer developing travel commerce engines for major APAC institutions. Collaborates across teams to deliver impact on user travel experiences.

Posted 4/16/2026full-timeRemote • 🇯🇵 JapanMid-LevelSeniorWebsite

Tech Stack

Tools & technologies
CloudDistributed SystemsGoogle Cloud PlatformGRPCMicroservicesReactScalaTypeScript

About the role

Key responsibilities & impact
  • Design and operate full-stack solutions and APIs optimized for high-scale B2B commerce partnerships across APAC.
  • Collaborate closely with product and engineering teams to localize portal features, ensuring seamless integration with regional payment and distribution standards.
  • Leverage LLMs and AI tooling to generate production-grade code that accelerates the delivery of partner-specific requirements.
  • Develop and maintain gRPC and REST-based microservices that power real-time travel inventory and fintech ancillaries.
  • Work autonomously to resolve complex technical challenges while maintaining strong asynchronous alignment with global stakeholders.
  • Iterate quickly on engineering improvements that enhance the scalability and performance of our B2B travel ecosystems.

Requirements

What you’ll need
  • Extensive experience with React and TypeScript used to build highly localized, performant web interfaces for complex e-commerce environments.
  • Proficiency in Scala and distributed systems or a strong desire to apply functional programming to large-scale backend architectures.
  • Commercial mindset that prioritizes regional product-market fit and the unique user behaviors found in APAC digital ecosystems.
  • Adeptness with AI-driven workflows, including the use of LLMs for development and the implementation of agentic AI systems to enhance partner support.
  • Hands-on knowledge of GCP and cloud-native practices, specifically in managing the latency and data residency requirements of international partnerships.
  • Strong technical agility and the ability to fearlessly navigate unknown codebases to deliver high-impact features under tight commercial deadlines.

Benefits

Comp & perks
  • Well-funded and proven startup with large ambitions, competitive salary and upsides of pre-IPO equity packages.
  • Hopper provides a monthly allowance for our employees in Japan to help reduce costs related to EHI premiums and out of pocket medical expenses.
  • Unlimited PTO.
  • Work-from-home stipend.
  • Access to co-working space on demand through FlexDesk.
  • Please ask us about our very generous parental leave, much above industry standards!.
  • Carrot Cash travel stipend.
  • Hopper provides a cash benefit for employees to put towards retirement.
  • An entrepreneurial culture where pushing limits and taking risks is everyday business.
  • Open communication with management and company leadership.

ATS Keywords

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Hard Skills & Tools
ReactTypeScriptScalagRPCRESTAI toolingLLMscloud-native practicesdistributed systemsfunctional programming
Soft Skills
collaborationautonomytechnical agilityproblem-solvingasynchronous alignmentcommercial mindsetiterative improvementadaptabilitycommunicationuser behavior analysis