Full Stack Software Engineer (Java/Spring Boot/Angular/PostgreSQL)
Confirmed on the employer's own hiring board on Nov 11, 2026. First seen by Alion on Nov 11, 2026.
Description
Markon is seeking an experienced Full Stack Software Engineer to support a customer in the Annapolis Junction, MD area. This role will focus on developing, modernizing, and maintaining enterprise web applications using Java, Spring Boot, Angular, and PostgreSQL. The position combines full-stack software development with DevOps responsibilities, including backend framework upgrades, frontend enhancements, database optimization, and cloud infrastructure management. The engineer will collaborate with cross-functional teams to deliver secure, scalable, and reliable applications supporting mission-critical operations.
Telework flexibility available based on mission requirements.
Responsibilities
Design, develop, and maintain backend microservices using Java and Spring Boot.
Develop and enhance responsive frontend applications using Angular.
Design, implement, and document secure RESTful APIs to support application functionality and system integration.
Manage and optimize PostgreSQL databases, including schema updates, performance tuning, and data integration.
Support backend framework upgrades and application modernization initiatives.
Build, deploy, and maintain containerized applications using Docker and DevOps automation tools.
Configure and support cloud-based infrastructure within Amazon Web Services environments.
Troubleshoot application, database, and infrastructure issues to ensure system performance and reliability.
Collaborate with software engineers, system administrators, and stakeholders throughout the software development lifecycle.
Maintain technical documentation, participate in code reviews, and support continuous improvement of development and deployment processes.
Qualifications
Active TS/SCI clearance with Polygraph required.
Experience developing full-stack web applications using Java, Spring Boot, and Angular.
Strong experience with Java and Spring Boot, including microservices development and backend framework modernization.
Experience developing frontend applications using Angular 19 or newer.
Experience designing and integrating RESTful APIs.
Experience with PostgreSQL, including database design, schema management, and query optimization.
Experience working with Amazon Web Services and cloud-based application infrastructure.
Proficiency with Docker, Git, Maven, and Ansible.
Experience administering or developing applications in Linux or Red Hat Enterprise Linux environments.
Familiarity with Node.js and modern JavaScript development.
Experience using development and collaboration tools such as VS Code, IntelliJ, Jira, and Confluence.
Strong troubleshooting, problem-solving, and communication skills.
Desired Qualifications
Experience with Spring Boot 3.5 or 4.0 and modern Java application frameworks.
Experience modernizing legacy applications and upgrading backend frameworks.
Experience implementing automated deployment pipelines and DevOps best practices.
Familiarity with cloud infrastructure automation, container orchestration, and application monitoring.
Experience supporting enterprise applications within Intelligence Community or government environments.
Work Arrangement: Up to two days of telework per week, subject to customer approval.
Salary Range
USD $160,000.00 - USD $185,000.00 /Yr.The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.Overview
Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions.
At Markon, we don't just offer jobs - we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.
Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.
Markon values people and the tremendous impact each individual can make - which is why we’re consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation’s most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters - bringing out the best in each other to advance our clients’ missions.Join us and make a meaningful impact.
Markon is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, national origin, age, protected veteran status, or disability status. This job posting will remain open until the position is filled.
Benefits Offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Training and Tuition Assistance, Paid Time Off, and Holidays.