Java Developer, Spring Boot – Upgrade & Modernization, 7+ years of experience

TMS

Java/Spring Boot Developer modernizing applications from Spring Boot 2.7 to 3.5 and Java 11/17 to Java 21. Troubleshooting Maven builds, compatibility, testing, and migration issues remotely in Canada.

Posted 9/10/2026contractRemote • 🇨🇦 CanadaSeniorLeadWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates extensive experience in Java and Spring Boot, with a focus on application upgrades and modernization. Proficient in troubleshooting Maven files and addressing build and compatibility issues.

Highest-signal resume keywords

Java 21 UpgradeSpring Boot 3.5 SupportMaven TroubleshootingApplication ModernizationDependency Upgrades

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaSpring BootMavenPythonApplication UpgradesDependency ManagementTroubleshootingBuild ManagementCompatibility TestingMigration Challenges

Tech Stack

Tools & technologies

JavaMavenPythonSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Support application upgrades from Spring Boot 2.7 to 3.5
Support Java upgrades from Java 11/17 to Java 21
Troubleshoot Maven (pom.xml) files, builds, dependencies, and upgrade-related issues
Address build issues, compatibility, testing, and migration challenges
Provide supporting Python skills when needed

Requirements

What you’ll need

Minimum 7+ years of experience
Strong hands-on experience with Java
Strong hands-on experience with Spring Boot
Experience with application modernization
Experience with dependency upgrades
Experience troubleshooting Maven (pom.xml) files, builds, dependencies, and upgrade-related issues
Python experience is a plus, but not mandatory

Benefits

Comp & perks

Employees can work remotely