Java Software Engineer

C. Mack Solutions

. Design, develop, enhance, debug, and implement software in an Agile environment .

Posted 9/22/2026full-timeUnited StatesMid-LevelSenior💰 $75,000 - $155,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack development, particularly with Java and JavaScript, while ensuring the creation of secure, scalable applications in an Agile environment. Proficient in API integration, cloud platforms, and automated testing methodologies.

Highest-signal resume keywords

Full-Stack DevelopmentJava Application DevelopmentJavaScript Frameworks (Angular)Agile Development (JIRA)API Integration (REST/SOAP)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaJavaScriptHTML5JQuerySpring FrameworkREST APISOAP APIDatabase ManagementAutomated TestingCloud Computing

Soft Skills

Strong Verbal CommunicationStrong Written Communication

Tools & Technologies

JIRASeleniumJUnitCucumberGradleMavenHarnessJenkinsAWSGenerative AI Code Assist

Certifications & Qualifications

CBP Public Trust Clearance

Industry Keywords

Agile EnvironmentHomeland SecurityHigh-Impact Federal ProgramSecure ApplicationsScalable Applications

Tech Stack

Tools & technologies

AngularAWSCloudGradleJavaJavaScriptJenkinsjQueryJUnitMavenSeleniumSOAPSpring

About the role

Key responsibilities & impact

Design, develop, enhance, debug, and implement software in an Agile environment
Create and support applications for a high-impact Federal program supporting homeland security
Perform full-stack development across front-end interfaces and back-end services
Integrate APIs, cloud platforms, and complex data systems
Design, develop, and implement software applications using JavaScript
Collaborate with IT infrastructure teams to integrate APIs and enhance system performance
Write clean, maintainable code and conduct thorough testing
Troubleshoot and resolve software defects and performance issues
Participate in code reviews and provide constructive feedback
Document software specifications, design processes, and user guides
Stay updated on industry trends and emerging technologies

Requirements

What you’ll need

Must live within the DC, MD, VA area
U.S. Citizenship is required
Must be able to obtain CBP Public Trust clearance
Bachelor’s degree plus at least 5 years of work experience
Ability to develop and maintain secure, scalable, and high-performance applications
Back-end services and mission-critical business logic using Java and related frameworks
At least 4 years of experience developing Java applications and associated frameworks
At least 4 years of development experience using JavaScript and/or JavaScript frameworks such as Angular
At least 3 years of experience working in a story-based Agile team development environment using JIRA or a similar tool
Strong database skills
Experience with REST and/or SOAP-based API consumption and creation
Experience with JavaScript, HTML5, and/or jQuery
Cloud experience
Strong verbal and written communication skills
Preferred: Full-stack development using the Spring Framework
Preferred: Automated testing with Selenium, JUnit, Cucumber, etc.
Preferred: Build automation with Gradle or Maven
Preferred: DevOps and continuous delivery tools such as Harness and Jenkins
Preferred: AWS experience
Preferred: Experience using generative AI code assist technologies

Benefits

Comp & perks

Medical, dental, and vision insurance
Retirement savings plans
Paid time off
Other supplemental programs