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Full Stack Developer – Software Developer Expert

Job in Herndon, Fairfax County, Virginia, 22070, USA
Listing for: Cornerstone Defense LLC
Full Time position
Listed on 2026-07-17
Job specializations:
  • Software Development
    Full Stack Developer, Software Engineer, Java Developer, DevOps
Salary/Wage Range or Industry Benchmark: 150000 - 210000 USD Yearly USD 150000.00 210000.00 YEAR
Job Description & How to Apply Below

Clearance: Active TS/SCI w/ Polygraph needed to apply.

Company Overview

Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.

If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview

Cornerstone Defense offers a very comprehensive benefits package including, but not limited to:
Medical, Dental and Vision Plans, Generous PTO Policy, 401(k), HSA and FSA options, Life and Disability Insurance, Tuition Reimbursement and Training, Perks at Work Discount Program, Referral Program, Leads Generation Program, College America 529, Fitness Reimbursement Program, Travel Assistance, Norton Lifelock Benefit Solutions, Life Planning Financial & Legal Services.

Required Education, Experience, & Skills
  • Bachelor's or Master's degree in Computer Science, Engineering, or related field
  • Minimum 11 years of relevant experience in full-stack development, with expertise in:
    • Front-end development: HTML5, JavaScript, Type Script, CSS
    • Back-end development:
      Java Spring, APIs, microservices
    • Database management: RDBMS and No

      SQL databases
    • Testing and debugging: hands-on experience with testing frameworks and tools
  • Hands-on experience with AWS cloud services, Dev Ops tools, and software development methodologies
  • Strong analytical and problem-solving skills, with ability to identify issues and implement corrective actions
  • Excellent communication and collaboration skills, with ability to work effectively in a team environment
Preferred Education, Experience, & Skills
  • Experience working in a Sec Dev Ops  Agile environment
  • Knowledge of migrating Ruby on Rails to Java
  • Familiarity with Infrastructure as Code (IOC) and cloud design principles
  • Understanding of Sec Dev Ops  and its applications
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