Senior Software Engineer, K4B

KAYAK, part of Booking Holdings (NASDAQ: BKNG), is the world’s leading travel search engine. With billions of queries across our platforms, we help people find their perfect flight, stay, rental car and vacation package. We’re also transforming business travel with a new corporate travel solution, KAYAK for Business. As an employee of KAYAK, you will be part of a travel company that operates a portfolio of global metasearch brands including momondo, Cheapflights and HotelsCombined, among others.

About the role

We are looking for a strong Senior Java Software Engineer to implement new features and maintain KAYAK’s world-leading platform. We seek people who love working with data—parsing, analyzing, investigating, interpreting, modeling, and extracting knowledge from large volumes of data. Good candidates will have a passion for processing data to help drive better business decisions or to develop new features, in a fast-paced environment where many small and diverse projects are the norm. This role requires working from our Concord, MA office at least 3 days per week.

Responsibilities

• Extract data from databases, write scripts to parse, clean, combine, and process them
• Communicate with APIs via REST or SOAP interfaces
• Configure enterprise applications for large customers
• Develop tools to assist in the debugging of existing products
• Build and maintain high-performance integrations with third-party APIs (airlines, hotel and rental car providers)
• Take full ownership of your designs: from initial concept to deployment while maintaining high standards for code quality and performance
• Participate in code reviews and architectural steering to ensure the K4B project remains modular and reusable as KAYAK expands its enterprise footprint

Requirements

• 6-8 years of experience with Java programming
• Strong understanding of programming fundamentals, data structures, algorithms, and software design
• Ability to work independently and with a team
• Good communication skills for sharing ideas clearly with both technical and non-technical colleagues
• Experience with relational databases like MySQL or Oracle
• Prior experience in the travel domain is beneficial
• Experience with B2B systems or identity/HR integrations is beneficial (e.g., SCIM, SAML/OAuth, SSO, user provisioning/deprovisioning, and connecting HRIS/IDP platforms like Workday, Okta, Active Directory to product services)

Skills

• Unix shell scripting
• Spring & Mybatis frameworks
• DOM and using XPath, JQuery & CSS
• API development using REST, Web Service, SOAP, etc.
• Machine Learning

Benefits

• Work from (almost) anywhere for up to 20 days per year
• Focus on mental health and well-being:
  • Company-paid therapy sessions through SpringHealth
  • Company-paid subscription to HeadSpace
  • Company-wide week off a year
• No meeting Fridays
• 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 socials, and more

Pay

The range for this Massachusetts-based role is $125,000–140,000, not inclusive of annual bonus and recurring RSU grants.