Hopper

Fullstack Software Engineer - Commerce/Partner Success (100% Remote - Japan)

Hopper3 days ago
Location

Japan - Remote

Workplace

Remote

Type

Full Time

Salary

USD 100,000 – 150,000

Level

Senior

Role

Fullstack Software Engineer

Posted

Apr 16, 2026

Full TimeRemoteSenior

The role

Summary

Hopper is seeking a Full-Stack Software Engineer to architect travel commerce engines for APAC markets, focusing on building localized travel portals for major financial institutions. The role involves developing scalable microservices, leveraging AI technologies, and creating high-performance web interfaces for complex e-commerce environments in the rapidly growing Asian travel market.

What you'll do

Full-Stack Solution Design: Design and operate full-stack solutions and APIs optimized for high-scale B2B commerce partnerships across APAC region
Product Localization: Collaborate with product and engineering teams to localize portal features for seamless regional integration
AI-Driven Development: Leverage Large Language Models (LLMs) and AI tooling to generate production-grade code and accelerate partner-specific requirements
Microservices Development: Develop and maintain gRPC and REST-based microservices powering real-time travel inventory and fintech ancillaries
Performance Optimization: Iterate on engineering improvements to enhance scalability and performance of B2B travel ecosystems

What we look for

Technical

Frontend TechnologiesExtensive experience with React and TypeScript for building localized, performant web interfaces
Backend TechnologiesProficiency in Scala and distributed systems, with strong functional programming skills
Cloud InfrastructureHands-on knowledge of Google Cloud Platform (GCP) and cloud-native practices

Education

Computer Science DegreeBachelor's or Master's degree in Computer Science, Software Engineering, or related technical field

Experience

E-commerce ExperienceProven track record in building complex e-commerce web interfaces and solutions
International Market ExpertiseExperience with APAC digital ecosystems and understanding of regional product-market fit

Skills

Required skills

ReactAdvanced proficiency in building responsive and performant web applications
TypeScriptStrong typing and modern JavaScript development skills
ScalaFunctional programming and backend development capabilities
Microservices ArchitectureExperience designing and implementing scalable microservices

Nice to have

AI DevelopmentExperience with Large Language Models and AI-driven workflows
Fintech KnowledgeUnderstanding of financial technology and e-commerce platforms

Compensation & benefits

Salary

USD 100,000 – 150,000 (annual)

Benefits

Competitive Salary

Well-funded startup offering competitive compensation package

Pre-IPO Equity

Opportunity for significant equity upsides

Medical Allowance

Monthly allowance to cover health insurance premiums and medical expenses in Japan

Unlimited PTO

Flexible unlimited paid time off policy

Work-from-Home Stipend

Financial support for home office setup

Flexible Workspace

Access to co-working spaces through FlexDesk

Parental Leave

Generous parental leave policy exceeding industry standards

Travel Stipend

Carrot Cash travel benefit

Retirement Benefit

Cash contribution towards employee retirement

Interview process

  1. 1
    Initial Screening — Resume and background review by recruiting team
  2. 2
    Technical Phone Screen — Initial discussion of technical skills and experience with engineering manager
  3. 3
    Technical Interview — In-depth technical assessment of coding skills, system design, and problem-solving abilities
  4. 4
    System Design Interview — Evaluation of candidate's ability to design scalable microservices and complex software architectures
  5. 5
    Cultural Fit Interview — Assessment of alignment with Hopper's entrepreneurial culture and team dynamics
  6. 6
    Final Leadership Interview — Meeting with senior leadership to discuss overall fit and potential contributions
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Hopper

Hopper

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Hopper is a travel booking app and online marketplace, leveraging data-driven technology to predict prices and help users book hotels, flights, and car rentals at the best rates.

Montreal, QC, CanadaFounded 2006hopper.com

Tech Stack

Languages
TypeScriptScala
Frameworks
React
Databases
Not Specified
Tools
GCPgRPC
Other
AI Tools
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