Senior Full Stack Developer

Cadmus; Dover; On-site; GBP 97,000 - 108,000; Full time

Job summary

Cadmus is seeking a Mid-Level Full Stack Java Developer to support a multi-year Federal contract. You’ll build and maintain modern web apps using Java, Spring Boot, Angular, and REST APIs, with strong SQL skills and experience across multiple layers.

You will diagnose production issues, participate in code reviews, and collaborate with architects, testers, and stakeholders to deliver reliable enhancements. IBM WAS/IHS experience is a plus.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or related field, or equivalent professional experience with 6+ years in software/development (Java & Spring).
• Strong hands-on experience with Java, Spring, Spring Boot, SQL and Angular; solid troubleshooting and design skills.
• Experience with legacy modernization and IBM WAS/IHS is a plus.

Responsibilities

• Participate throughout the Agile software development lifecycle: backlog refinement, sprint planning, development, testing, deployment, and retrospectives.
• Design, develop, enhance, and maintain enterprise apps using Java and Spring/Spring Boot.
• Develop and maintain responsive web apps using Angular, TypeScript, HTML5, and CSS.
• Design and implement RESTful services and APIs with Spring Boot.
• Collaborate with architects, QA, DevOps, and stakeholders to deliver enhancements.
• Maintain and modernize legacy apps while incrementally introducing Spring/Angular tech.

Skills

Java

Spring

Angular

REST APIs

SQL

Troubleshooting

Agile/Scrum

Code reviews

Education

Bachelor's degree in Computer Science or related field

6+ years of software development experience

Tools

Maven

Git

Docker

Job description

Overview

What You'll Be Doing

We are seeking a Mid-Level Full Stack Java Developer to join our team supporting a multi-year Federal contract. The developer will be a key member of an Agile/Scrum team responsible for developing, enhancing, and maintaining modern web applications using Java, Spring Boot, Spring Framework, Angular, REST APIs, and relational databases. Knowledge of Servlets and JSPs would be an added advantage.

The ideal candidate will bring strong hands-on experience with Java, Spring, Spring Boot, SQL and Angular with solid troubleshooting and design skills, the ability to independently deliver assignments, and preferably experience with legacy modernization and experience with IBM software (WAS & IHS).

In this role, you will work across multiple application layers, diagnose and resolve production issues, contribute actionable feedback during code reviews, and collaborate with developers, architects, testers, and business stakeholders to deliver reliable application enhancements.

Who We Are

Cadmus provides government, commercial, and other private organizations worldwide with technology-empowered advisory and implementation services. We help our clients achieve their goals and drive lasting, impactful change by leveraging transformative digital solutions and unparalleled expertise across domains.

At Cadmus, we look for team players and problem solvers who are driven to use their unique perspectives and intellectual curiosity to help deliver breakthrough solutions that achieve transformative goals. As a member of our team, you'll collaborate with leading experts to support our clients across the globe. We offer competitive compensation, outstanding health care and retirement benefits, a vibrant and collaborative work environment, and ample opportunities for professional growth.

Join Cadmus. Together, we are strengthening society and the natural world. For more information, visit cadmusgroup.com .

Responsibilities

• Participate throughout the Agile software development lifecycle, including backlog refinement, sprint planning, development, testing, deployment, and retrospective activities.


• Design, develop, enhance, and maintain enterprise applications using Java and Spring/Spring Boot.


• Develop and maintain responsive web applications using AngularTypeScript, HTML5, and CSS.


• Design and implement RESTful web services and APIs using Spring Boot.


• Develop application components following established coding standards, design patterns, and development best practices.


• Work with relational databases, including Oracle / SQL Server, and develop efficient SQL queries and database integrations.


• Troubleshoot and resolve application issues across development, test, and production environments.


• Participate in code reviews and contribute to improving application quality, performance, security, and maintainability.


• Translate functional requirements into technical designs and implementation tasks.


• Collaborate with architects, developers, QA engineers, DevOps teams, and business stakeholders to deliver application enhancements.


• Develop unit and integration tests and support automated testing activities.


• Maintain and enhance existing and legacy applications while incrementally introducing modern Spring and Angular technologies when they improve maintainability, reliability, or delivery efficiency.


• Participate in application deployment and production support activities.


• Mentor junior developers through code reviews, technical guidance, and knowledge sharing.


• Create and maintain technical documentation, application flow diagrams, and implementation guides that support development, deployment, troubleshooting, and knowledge transfer.


• Identify and implement improvements that strengthen application performance, reliability, maintainability, and operational efficiency.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical field, or equivalent professional experience and 6+ years of software/application development experience, mainly within Java & within the Spring ecosystem including: Spring Boot, Spring MVC, Spring Security, Spring Data/JPA/Hibernate


• REST APIs


• Strong front-end development experience with Angular and strong knowledge of TypeScript, JavaScript, HTML5, and CSS.


• Experience developing and consuming RESTful web services.


• Experience with SQL and relational databases, preferably Oracle.


• Experience with JSON and XML.


• Strong experience with Apache Maven, including pom.xml configuration, dependency management, plugins, profiles, build lifecycle, and packaging/deployment.


• Experience with Git-based source control and collaborative development.


• Understanding software development lifecycle and Agile/Scrum methodologies.


• Experience with legacy application modernization


• Experience with unit testing and automated testing practices.


• Strong troubleshooting and problem-solving skills.


• Ability to work effectively in a collaborative team environment.

Preferred Skills:

• Experience with Azure cloud services.


• Experience with Docker and containerized applications.


• Experience with CI/CD pipelines and DevOps tools.


• Experience with GitHub Actions, or similar CI/CD tools.

Additional Information:

Candidates must be eligible to work in the United States as a U.S Perm Resident or U.S. Citizen.

Based on eligibility and job status, Cadmus offers an excellent benefits package to include: medical, dental, vision, company paid disability and life insurance, 401(k) program, paid time off (PTO), paid holidays, voluntary time off (VTO), tuition reimbursement, adoption assistance program, other optional benefits and various bonus programs.

Benefits

• medical


• dental


• vision


• company paid disability and life insurance


• 401(k) program


• paid time off (PTO)


• paid holidays


• voluntary time off (VTO)


• tuition reimbursement


• adoption assistance program


• other optional benefits and various bonus programs

The salary range for this position is$130,000 - $145,000. The actual salary will be determined by several factors, including relevant work experience, education, skills, and market competitiveness.

We value the critical role safety and health protocols contribute to everyone’s success at Cadmus, and work together to align and comply with all federal, state, and local safety and health mandates to ensure a safe and valuable work environment.

Cadmus is an Equal Opportunity Employer and prohibits unlawful discrimination. Cadmus is committed to providing a respectful workplace where equal employment opportunities are available to all applicants and employees without regard to race, color, religion, sex (including pregnancy), sexual orientation (including gender identity and/or expression), national origin, military and veteran status, physical and mental disability, or any other characteristic protected by applicable law.

Job Locations

US