Senior Full Stack Developer

Cadmus; Denver (CO); On-site; USD 130,000 - 145,000; Full time

Benefits offered by this job

Medical

Dental

Vision

Life Insurance

401(k)

Paid Time Off

Paid holidays

Tuition Reimbursement

Adoption Assistance

Job summary

Cadmus is seeking a Senior Full Stack Java Developer to join a multi-year Federal contract. You will work on modern web apps using Java, Spring Boot, Spring Framework, Angular and AngularJS, with REST APIs and SQL Server.

The role emphasizes strong Java back-end, front-end skills, DevOps awareness, and collaboration across architects, testers, and stakeholders. You will contribute to code reviews, help mentor junior developers, and participate in deployment and production support while

Qualifications

• Bachelor’s degree or equivalent professional experience in a technical field.
• 6+ years of professional software development experience.
• 3+ years of hands-on Java/Spring development experience.
• 3+ years of Angular/AngularJS development experience.
• Experience on Agile/Scrum teams.
• Strong Spring ecosystem experience (Spring Boot, Spring MVC, Spring Security, Spring Data/JPA/Hibernate & REST APIs).
• Strong front-end with Angular/AngularJS, TypeScript, HTML5, CSS.
• Experience with RESTful services and SQL Server.
• Experience with JSON/XML.
• Maven and dependency management; build, packaging and deployment.
• Git-based collaboration and source control.
• Understanding of SDLC and Agile methodologies.
• Experience with unit/integration testing and automation.
• Good troubleshooting and collaboration skills.
• Ability to obtain a U.S. security clearance.

Responsibilities

• Participate in Agile software development lifecycle including planning, sprint activities, development, testing, deployment and retrospectives.
• Design and develop enterprise apps with Java, Spring/Spring Boot.
• Develop responsive web apps using Angular and TypeScript.
• Create RESTful services and APIs with Spring Boot.
• Integrate front-end with back-end services and databases.
• Follow coding standards and design patterns for maintainability.
• Work with SQL Server and write efficient queries.
• Troubleshoot production, test, and development issues.
• Contribute to code reviews to improve quality, performance and security.
• Translate requirements into technical designs and tasks.
• Collaborate with architects, developers, QA, DevOps and stakeholders.
• Develop unit and integration tests and support automation.
• Maintain and modernize legacy apps while introducing modern Spring/Angular tech as appropriate.
• Participate in deployment and production support.
• Mentor junior developers and share knowledge.
• Create and maintain technical docs and architecture diagrams.
• Identify improvements to performance, reliability and efficiency.

Skills

Java

Spring Framework

Angular/AngularJS

TypeScript

JavaScript

HTML/CSS

SQL Server

REST APIs

Git

Unit testing

Education

Bachelor’s degree in Computer Science or related field

Tools

Maven

GitHub Actions

Azure

Docker

CI/CD tooling

Jenkins

Job description

Overview

What You’ll Be Doing

We are seeking a Senior 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, AngularJS, REST APIs, and relational databases.

The ideal candidate will bring strong hands‑on experience with the Java/Spring ecosystem and front‑end development using Angular and AngularJS. Experience with Azure, containerization, and DevOps practices is preferred and will support the team’s modernization and delivery objectives.

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 Angular, AngularJS, TypeScript, HTML5, and CSS.

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

• Integrate front‑end applications with backend services and databases.

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

• Work with relational databases, including 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.

• 6+ years of professional software development experience.

• 3+ years of hands‑on Java/Spring development experience.

• 3+ years of Angular/AngularJS development experience.

• Experience working on Agile/Scrum development teams.

• Extensive experience with the Spring ecosystem, including: Spring Boot, Spring MVC, Spring Security, Spring Data/JPA/Hibernate & REST APIs

• Strong front‑end development experience with Angular/AngularJS.

• Strong knowledge of TypeScript, JavaScript, HTML5, and CSS.

• Experience developing and consuming RESTful web services.

• Experience with SQL and relational databases, preferably SQL Server.

• 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 of software development lifecycle and Agile/Scrum methodologies.

• Experience with unit testing and automated testing practices.

• Strong troubleshooting and problem‑solving skills.

• Ability to work effectively in a collaborative team environment.

• Ability to obtain a FNS MBI Clearance is required.

Preferred Skills

• Experience with Azure cloud services.

• Experience with Docker and containerized applications.

• Experience with CI/CD pipelines and DevOps tools.

• Experience with Jenkins, 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.

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.

Learn more about Cadmus by visiting our website at: cadmusgroup.com .