KAYAK

Senior JAVA Software Engineer

KAYAK

full-time

Posted on:

Location Type: Hybrid

Location: CambridgeMassachusettsUnited States

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Salary

💰 $125,000 - $165,000 per year

Job Level

About the role

  • Build and maintain backend features for the Stays team (search, booking, integrations).
  • Improve performance, reliability, and user experience of existing systems.
  • Integrate and maintain connections with internal and third-party APIs.
  • Collaborate with frontend engineers, product, design, and QA to deliver features

Requirements

  • Strong Java development skills.
  • Experience designing APIs and backend services.
  • Experience building high-performance, scalable services.
  • Familiarity with relational databases (e.g., MySQL) and web data formats/protocols (HTTP, XML, JSON).
  • Practical experience with APIs (design, consumption, or integration).
  • Clear communicator who works well on a team.
  • Self-driven and able to move projects forward independently.
  • Nice to have: Experience with Spring, Git, Redis, Kafka, or similar technologies.
  • Experience working on search, booking, or high-throughput systems.
Benefits
  • Work from (almost) anywhere for up to 20 days per year
  • Flexible hours and ability to work from home 1 or 2 days per week
  • Generous retirement plans
  • Awesome health, dental and vision insurance plans with flexible spending accounts
  • Focus on mental health and well-being:
  • Company-paid therapy sessions through SpringHealth
  • Company-paid subscription to HeadSpace
  • Company-wide week off a year - the whole team fully recharges (and returns without a pile-up of work!)
  • No meeting Fridays
  • Universal paid parental leave
  • Generous paid vacation + time off for your birthday
  • Paid volunteer time
  • Focus on your career growth:
  • Development Dollars
  • Leadership development
  • Access to thousands of on-demand e-learnings
  • Travel Discounts
  • Employee Resource Groups
  • Competitive retirement and health plans
  • Free lunch 2 days per week
  • Fun quarterly events such as boat trips, arcades, ski trips, Thursday happy hours, and more
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
JavaAPI designbackend serviceshigh-performance servicesscalable servicesrelational databasesMySQLHTTPXMLJSON
Soft Skills
clear communicatorteamworkself-drivenindependent project management