Title: Senior Java Developer - AEFW3/Spring Framework 3.0.5 to Spring Boot 3.x

Location

Hartford,

Connecticut

ZIP/Postal Code

06105

Job Type

Contract-to-perm

Category

Software Engineering

Req #

HTD-c0b192c7-4a3c-4d3c-a4d5-e915218b9576

Pay Rate

$50 - $62 (hourly estimate)

Job Description

Insight Global is seeking a fully remote Java Developer to spearhead the modernization of legacy Framework built on Spring Framework 3.0.5 to the latest version of Spring Boot. This role involves analysis of existing proprietary Framework codebase, architectural design for migration, hands-on development, and ensuring the successful transition to a modern, cloud-native ready architecture (Azure Cloud - private/public).

Key Responsibilities

Analyze existing AEFW3 framework built on top of Spring Framework 3.0.5 to identify dependencies, configurations, and potential challenges for migration to Spring Boot.

Design and implement migration strategies, including refactoring, dependency upgrades, and adoption of Spring Boot features (e.g., auto-configuration, embedded servers, starters).

Develop and refactor code to align with Spring Boot best practices, including transitioning from XML-based configurations to Java-based configurations and annotations. Tiles conversion to JSP using JSP includes.

Address compatibility issues related to Jakarta EE, Hibernate, Spring Security, and other third-party libraries during the migration process.

Implement and optimize build tools (Maven) for Spring Boot projects.

Ensure code quality through unit testing, integration testing, and adherence to coding standards.

Collaborate with other developers, architects, and stakeholders to ensure a smooth and effective modernization process.

Provide technical guidance and mentorship to other application teams on Spring Boot development.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances.

Required Skills & Experience

Extensive experience with Spring Framework, particularly with legacy versions like 3.0.5, and deep understanding of its core concepts (IoC, DI, AOP).

Proven experience in migrating applications from older Spring Framework versions to Spring Boot.

Strong proficiency in Java, with experience in Java 17 or higher.

Solid understanding of Spring Boot principles, including starters, auto-configuration, embedded servers, and externalized configuration.

Experience with build tools such as Maven.

Familiarity with database technologies (e.g., SQL, JPA, Hibernate) and Spring Data.

Experience with web technologies and frameworks, including Spring MVC and RESTful API development.

Understanding of security concepts and experience with Spring Security.

Experience with version control systems (e.g., Git).

Benefit packages for this role will start on the 31st day of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave and/or other paid time off as provided by applicable law.

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Senior Java Developer job at Insight Global in Hartford, CT