Senior Software Engineer (K4B)

KAYAK; Concord (CA); On-site; USD 125,000 - 140,000; Full time

Benefits offered by this job

Work from home up to 20 days/yr

Mental health benefits

Headspace subscription

Company-wide week off

No meeting Fridays

Parental leave

Generous vacation

Volunteer time

Development dollars

Leadership development

On-demand e-learnings

Travel discounts

Employee Resource Groups

Retirement and health plans

Free lunch 2 days/week

Quarterly events

Job summary

KAYAK is seeking a Senior Java Software Engineer to implement features and maintain our data-driven platform in Concord, MA. You will parse and analyze large datasets, build API integrations, and drive code quality across modules.

You should have 6–8 years of Java experience, strong fundamentals, and experience with MySQL/Oracle. B2B and HR-system integrations are a plus, along with REST/SOAP API development and Spring/MyBatis.

Qualifications

• 6–8 years of experience with Java programming.
• Strong understanding of fundamentals, data structures, algorithms, and software design.
• Ability to work independently and with a team.
• Good communication skills for cross-functional collaboration.
• Experience with relational databases (MySQL or Oracle).
• Experience with B2B systems or identity/HR integrations (e.g., SCIM, SAML/OAuth, SSO).
• Experience with API development using REST, Web Service, SOAP; familiarity with Spring & MyBatis frameworks.

Responsibilities

• Extract data from databases, write scripts to parse, clean, and process data.
• Communicate with APIs via REST or SOAP interfaces.
• Configure enterprise applications for large customers.
• Develop tools to assist in debugging existing products.
• Build and maintain high-performance integrations with third-party APIs.

Skills

Java

Relational databases

REST/SOAP API development

Unix shell scripting

Spring & MyBatis

DOM/XPath/JQuery/CSS

Machine Learning

Tools

MySQL

Oracle

Job description

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. From start-up to industry leader, innovation is in our DNA and every employee has an opportunity to make their mark. Our focus is on building the best travel search engine to make it easier for everyone to experience the world.We are looking for a strong Senior Java Software Engineer to implement new features and maintain KAYAK’s world-leading platform. We are seeking for 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 in 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 will be required to work from our Concord, MA office at least 3 days per week. In this role, you will:

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 rentalcars 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 (Workday, Okta, Active Directory) to product services.
• Experience with the following: Unix shell scripting Spring & Mybatis frameworksDOM and using XPath, JQuery & CSSAPI development using REST, Web Service, SOAP, etcMachine Learning

Benefits and Perks

• 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 - the whole team fully recharges (and returns without a pile-up of work!)
• 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 thousand 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

There are a variety of factors that go into determining a salary range, including but not limited to external market benchmark data, geographic location, and years of experience sought/required. The range for this Massachusetts based role is $125,000-140,000, not inclusive of annual bonus and recurring RSU grants.

We offer a competitive base salary and benefits including: health benefits; flexible spending account; retirement benefits; life insurance; paid time off (including PTO, paid sick leave, medical leave, bereavement leave, floating holidays and paid holidays); and parental leave benefits.

InclusionAt KAYAK, we want everyone to have the space to grow, share ideas and do great work.

Need any adjustments for the interview, application or on the job? No problem - just give us a heads-up. We’ve got you.#LI-AS1