Principal Software Engineer: Scalable Global Platforms

Allegiant; Las Vegas (NV); On-site; USD 130,000 - 180,000; Full time

Benefits offered by this job

Profit Sharing

Medical/Dental/Vision/Life Insurance

401K with employer match

Flight Benefits

Tuition Reimbursement

Job summary

Allegiant Travel Company is seeking a highly skilled Senior Middleware Engineer to drive the design, development, and deployment of scalable, fault-tolerant multi-tier systems in a Linux environment. You will lead architecture discussions and collaborate across teams to deliver robust web services and data integrations.

The role requires extensive Java, Node.js, and RESTful API experience, plus strong knowledge of middleware stacks, CI/CD, testing, and performance tuning.

Qualifications

• Bachelor’s degree required in CS, Math, or MIS.
• 10+ years of middleware development experience.
• 7+ years of software development in multi-tier, high-availability, distributed Linux systems.
• Extensive Java (8/9), Node.js, PHP, HTML5/CSS3/JS experience.

Responsibilities

• Lead cross-functional software projects from requirements to deployment.
• Provide architecture guidance balancing business needs with technical standards.
• Develop and refine domain models, data schemas, and API interfaces.
• Mentor junior engineers and participate in design/code reviews.
• Ensure scalability, performance, and reliability of systems.

Skills

Java

JavaScript (Node.js)

PHP

HTML5

CSS3

JQuery

AngularJS

ReactJS/Redux

REST Web Services

Maven

Education

Bachelor’s Degree in Computer Science, Math or MIS

Tools

Jboss/Wildfly

Spring Boot

Tomcat

Linux

HTTP

SOAP/REST Web Services

XML

JSON

JUnit/TestNG

Mockito

Jenkins/Bamboo/TravisCI/TeamCity

Hibernate

ORM frameworks

Kafka/RabbitMQ

MySQL/Mongo/Cassandra/DB2

Job description

Allegiant Travel Company is seeking a highly skilled Senior Middleware Engineer to drive the design, development, and deployment of scalable, fault-tolerant multi-tier systems in a Linux environment. You will lead architecture discussions and collaborate across teams to deliver robust web services and data integrations.

The role requires extensive Java, Node.js, and RESTful API experience, plus strong knowledge of middleware stacks, CI/CD, testing, and performance tuning.