Position Details

Type Contract

Experience senior

Exp. Years At least five (5) years of related experience required

Education Bachelor's Degree from an accredited college or university required; An additional four (4) years of related experience may substitute for degree

Category System Administration

About this role

Infomarines Inc is seeking a Senior Java Developer to support an enterprise modernization project. The role involves developing and testing software applications in a remote setting, including transforming legacy systems into microservices-based platforms.

Key Responsibilities

Maintain and modify existing software programs and perform software design and development
Develop and test JEE components using Java 11+, Spring Boot, and Microservices
Transform monolithic legacy applications into microservices-based platforms
Participate in design and code reviews; produce required documentation and diagrams
Perform unit testing, debugging, and performance tuning/optimization for service-based infrastructure

Technical Overview

You will design, develop, and unit test JEE solutions using Java 11+, Spring Boot, and Microservices, with Agile development and continuous integration practices. Responsibilities include debugging and performance tuning, participating in design and code reviews, and working with Oracle Fusion Middleware and legacy modernization toward scalable microservices architectures.

Ideal Candidate

The ideal candidate is a senior Java developer with 5+ years of experience building and modernizing enterprise applications using Java 11+, JEE, Spring Boot, and microservices. They have Agile and continuous integration experience, strong debugging and unit testing skills, and a track record transforming monolithic systems into scalable microservices architectures. They also hold an active CompTIA Security+ certification and have an Active DoD Secret clearance as required for this role supporting modernization work.

Must-Have Skills

Active DoD Secret clearanceactive CompTIA Security+ CertificationUS CitizenStrong Core Java 11 (or newer) DeveloperExperience designing and implementing JEE solutions with a focus on Spring BootMicroservices and business rulesExperience using modern development methodology including Agile and continuous integrationAbility to understand legacy applications and modernize to a micro service environmentProven ability to transform monolithic legacy applications into modern microservices-based platformsMaintain and modify existing software programsunit testingdebugging

Nice-to-Have Skills

Knowledge of Life Cycle Support of a software application on Z/OS and Red Hat Linux system enviro

Tools & Platforms

Oracle Fusion MiddlewareZ/OSRed Hat LinuxSpring Boot

Required Skills

Java 11 and aboveSQLSpring BootMicroservicesJEEunit testingdebuggingAgilecontinuous integrationLambda expressionsGenericsdesign patternsSOA principlescore Java APIOracle Fusion Middlewareperformance tuningcode reviewsdocumentationZ/OSRed Hat Linux

Hard Skills

Java 11 and aboveJavaSQLSpring BootMicroservicesunit testingdebuggingsoftware designsystems analysisJEELambda expressionsGenericsdesign patternsSOA principlescore Java APIOracle Fusion MiddlewareAgilecontinuous integrationperformance tuning and optimizationmonolithic legacy applicationsmicroservices architecturesZ/OSRed Hat Linuxsource code managementdocumentationdiagram application functionality

Soft Skills

maintain and modify existing software programsinteract effectively with team of engineers/developers and customersparticipate in design and code reviewscommunication skillswriting skillsprovide consultation on complex projectsplanning and accomplishing goals in short sprintswork within a large team environment

Certifications

Required

CompTIA Security+

Industry & Role

Industry Defense

Job Function Develop and modernize enterprise Java applications into microservices architectures

Role Subtype Backend Engineer

Tech Domains Java, Software Engineering, Cybersecurity

Clearance & Visa

Visa Sponsorship No

Keywords for Your Resume

Senior Java DeveloperSr. Java DeveloperJava 11JavaJava 11 and aboveCore JavaSQLSpring BootMicroservicesMicroservices-basedJEEJEE componentsunit testingdebuggingAgilecontinuous integrationLambda expressionsGenericsdesign patternsSOA principlescore Java APIOracle Fusion Middlewareperformance tuningoptimizationmonolithic legacy applicationsmicroservices architecturescode reviewsdocumentationZ/OSRed Hat LinuxCompTIA Security+Active DoD Secret clearanceUS CitizenRESTful APIs

Deal Breakers

Must be a US Citizen, Must have an Active DoD Secret clearance, Must have an active CompTIA Security+ Certification, Must have at least 5 years of related experience, Must have strong Core Java 11 (or newer) development experience

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