Java Backend Engineer — Open Liberty Specialist (Hybrid)

United States Digital Space LLC; United States; Hybrid; USD 83,000 - 96,000; Full time

Job summary

United States Digital Space LLC is seeking a Java Developer with Open Liberty expertise to design, develop, and maintain scalable Java applications. The role emphasizes strong backend Java skills, Open Liberty server tech, and collaboration within a client-facing team in a hybrid Toronto setting.

Responsibilities include requirements-driven design, coding to standards, and supporting QA/UAT/production. On-call duties may apply; experience with Docker and GKE is valuable for deployment and

Qualifications

• 5+ years of hands-on Java development experience.
• Familiar with both waterfall and agile SDLC life cycles.
• Experience with Java/J2EE, Spring REST services, microservices, OAuth2.0, Swagger/OpenAPI.
• Experience with containerization (Docker) and Kubernetes (GKE).
• IBM Open Liberty is a key differentiator.

Responsibilities

• Participate in requirements phase, create dev work packages, and drive solution design.
• Follow coding standards, perform design, code reviews, and development tasks.
• Provide support during QA, SIT, UAT, and production.
• Mentor/offshore team members as needed and review deliverables.
• Provide timely status updates to the client team.
• Assist with on-call production support as needed.

Skills

Java

Spring Boot

REST services

Microservices

OAuth 2.0

Swagger/OpenAPI

ReactJS

Node.js

JavaScript

Tools

Jenkins

GitHub

JFrog Artifactory

Ansible

JIRA

Confluence

Azure

OpenShift

Docker

Google Kubernetes (GKE)

Job description

United States Digital Space LLC is seeking a Java Developer with Open Liberty expertise to design, develop, and maintain scalable Java applications. The role emphasizes strong backend Java skills, Open Liberty server tech, and collaboration within a client-facing team in a hybrid Toronto setting.

Responsibilities include requirements-driven design, coding to standards, and supporting QA/UAT/production. On-call duties may apply; experience with Docker and GKE is valuable for deployment and