Sr. Java Full-Stack Developer

CGI Njoyn; Milford Mill (MD); On-site; USD 90,000 - 194,000; Full time

Benefits offered by this job

Competitive compensation

Comprehensive insurance options

Matching contributions through the 401

Paid time off

Paid parental leave

Tuition assistance

Wellness programs

Job summary

CGI Federal is seeking a Senior Java Full Stack Developer to own end-to-end development of critical SSA MDE platform applications. In this role, you will design, develop, secure, deploy, and sustain production systems relied upon by mission stakeholders. This position is located 5 days a week on site at SSA Woodlawn, MD.

You will lead full lifecycle development, work with Spring Boot 3.x, PostgreSQL, and modern DevOps practices, and collaborate across multiple codebases with minimal ramp up time.

Qualifications

• 10+ years of hands on Java expertise with strong proficiency in Spring Boot 3.x and related technologies.
• Experience with PostgreSQL and JPA/Hibernate.
• Practical background implementing JWT, OAuth2, and LDAP authentication patterns.
• Experience building server rendered UI with Thymeleaf/Mustache and Bootstrap/jQuery/HTMX.
• Strong automated testing discipline (JUnit 5, Mockito, Cucumber, Selenium).
• Skilled in Maven multi module builds, parent POM structures, and advanced plugin configuration.
• Experience using Eclipse IDE and Lombok.
• Working knowledge of Groovy (Jenkins pipelines), Python scripting fundamentals, and familiarity with Helm/Kubernetes/OpenShift.
• Proven ability to independently troubleshoot, sustain, and enhance production systems.
• Solid understanding of CI/CD pipelines, container lifecycle concepts, and modern orchestration approaches.

Responsibilities

• Lead full life cycle development of Spring Boot 3.x applications, including backend services, REST/OpenAPI interfaces, and server rendered UI using Thymeleaf/Mustache, Bootstrap, HTMX, and jQuery.
• Design, optimize, and maintain PostgreSQL database models leveraging JPA/Hibernate, Liquibase/Flyway migrations, and schema/role governance.
• Implement and support authentication and authorization mechanisms such as LDAP/Active Directory, JWT (RS256), OAuth2, and Spring Security.
• Maintain and evolve multi module Maven builds, including integration of internal SSA/MDE libraries and plugin configurations such as JaCoCo and Surefire/Failsafe.
• Develop and maintain robust automated test suites using JUnit 5, Mockito, Cucumber/BDD, Selenium, and Parasoft SOAtest (where applicable), including coverage gating.
• Support SSA Jenkins CI/CD pipelines and environment configuration via Spring Cloud Config; troubleshoot and extend Groovy based Jenkins shared library functions.
• Contribute to Python automation tooling and assist with Helm based deployments and Kubernetes/OpenShift operational troubleshooting.
• Collaborate through Git based workflows (Stash/Bitbucket), participate in formal PR reviews, and maintain internal documentation across Confluence and Jira Service Desk.

Skills

Java

Spring Boot

JPA/Hibernate

PostgreSQL

REST/OpenAPI

LDAP/AD

JWT/OAuth2

JUnit 5

Maven

Jenkins

Git

Thymeleaf/Mustache

Tools

Eclipse IDE

Lombok

Liquibase/Flyway

Git

Job description

Job order - J0826-0211 - Permanent Full Time

Title

Sr. Java Full-Stack Developer

Category

Software Development/ Engineering

City

Baltimore, Maryland, United States

Job Description

CGI Federal is seeking an experienced Senior Java Full Stack Developer to provide end to end ownership of critical internal applications supporting SSA's MDE platform. In this role, you will serve as the primary engineer responsible for the design, development, security, deployment, and sustainment of production systems relied upon by mission stakeholders. This position is ideal for a highly self sufficient technologist comfortable operating across a diverse enterprise ecosystem and contributing to multiple codebases with minimal ramp up time. This role is located 5 days a week on site at SSA Woodlawn, MD.

Duties and Responsibilities

• Lead full life cycle development of Spring Boot 3.x applications, including backend services, REST/OpenAPI interfaces, and server rendered UI using Thymeleaf/Mustache, Bootstrap, HTMX, and jQuery.
• Design, optimize, and maintain PostgreSQL database models leveraging JPA/Hibernate, Liquibase/Flyway migrations, and schema/role governance.
• Implement and support authentication and authorization mechanisms such as LDAP/Active Directory, JWT (RS256), OAuth2, and Spring Security.
• Maintain and evolve multi module Maven builds, including integration of internal SSA/MDE libraries and plugin configurations such as JaCoCo and Surefire/Failsafe.
• Develop and maintain robust automated test suites using JUnit 5, Mockito, Cucumber/BDD, Selenium, and Parasoft SOAtest (where applicable), including coverage gating.
• Support SSA Jenkins CI/CD pipelines and environment configuration via Spring Cloud Config; troubleshoot and extend Groovy based Jenkins shared library functions.
• Contribute to Python automation tooling and assist with Helm based deployments and Kubernetes/OpenShift operational troubleshooting.
• Collaborate through Git based workflows (Stash/Bitbucket), participate in formal PR reviews, and maintain internal documentation across Confluence and Jira Service Desk.

Required Qualifications

• Ability to obtain and maintain US Public Trust Clearance
• 10+ years of hands on Java expertise with strong proficiency in Spring Boot 3.x (MVC, Data JPA, Security, Session, LDAP).
• Demonstrated experience with PostgreSQL and JPA/Hibernate.
• Practical background implementing JWT, OAuth2, and LDAP authentication patterns.
• Experience building server rendered UI with Thymeleaf/Mustache and Bootstrap/jQuery/HTMX.
• Strong automated testing discipline (JUnit 5, Mockito, Cucumber, Selenium).
• Skilled in Maven multi module builds, parent POM structures, and advanced plugin configuration.
• Experience using Eclipse IDE and Lombok.
• Working knowledge of Groovy (Jenkins pipelines), Python scripting fundamentals, and familiarity with Helm/Kubernetes/OpenShift.
• Proven ability to independently troubleshoot, sustain, and enhance production systems.
• Solid understanding of CI/CD pipelines, container lifecycle concepts, and modern orchestration approaches.

Desired Qualifications

• Experience integrating and maintaining Parasoft SOAtest (including Maven and DTP reporting).
• Prior work within federal agencies or highly regulated enterprise environments.
• Background authoring Jenkins Groovy shared libraries, authoring Helm charts, or scripting in Python.
• Familiarity with OpenShift deployment models and release governance best practices.
• Exposure to DevOps/observability tools (Docker Compose, Grafana, TimescaleDB).
• Experience integrating secure, agentic AI capabilities into existing systems while maintaining federal data integrity.

Compensation

CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit based performance, CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $89,600.00 $194,000.00.

Benefits

• Competitive compensation
• Comprehensive insurance options
• Matching contributions through the 401(k) plan and the share purchase plan
• Paid time off for vacation, holidays, and sick time
• Paid parental leave
• Learning opportunities and tuition assistance
• Wellness and Well being programs

Equity Statement

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team—one of the largest IT and business consulting services firms in the world.

Qualified applicants will receive consideration for employment without regard to their race, ethnicity, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, pregnancy, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity, and gender expression, familial status or responsibilities, reproductive health decisions, political affiliation, genetic information, height, weight, or any other legally protected status or characteristics to the extent required by applicable federal, state, and/or local laws where we do business.

CGI provides reasonable accommodations to qualified individuals with disabilities.

All CGI offers of employment in the U.S. are contingent upon the ability to successfully complete a background investigation. Background investigation components can vary dependent upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security clearance requirements, and in accordance with applicable laws, some background investigations may include a credit check. CGI will consider for employment qualified applicants with arrests and conviction records in accordance with all local regulations and ordinances.

CGI will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant.