Senior Java Engineer — Data-Driven Travel Platform

Doist; United States; 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 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.