Full Stack Developer - Senior - Military veterans preferred

Description:

Full Stack Developer - Senior

Primary Location: Quantico, VA

Clearance: Active DoD Secret

Job Summary

We are seeking a Senior Full Stack Developer to support the sustainment and modernization of GCSS-MC through secure, scalable application development. This role involves full lifecycle development across front-end, back-end, and database layers, with a focus on Agile delivery, system integration, and validation testing. The ideal candidate will bring deep technical expertise, cloud experience, and a mission-driven mindset to deliver secure, scalable applications across the full technology stack in a mission-critical environment.

Specific Responsibilities

• Develop, integrate, and deliver secure, scalable applications using front-end, back-end, and database technologies
• Collaborate with product owners, engineers, and testers to design and implement new functionality and system enhancements
• Participate in Agile ceremonies, write user stories, define acceptance criteria, and support backlog refinement
• Support configuration management and validation testing by developing test plans, scripts, and supporting SIT/GAT execution
• Monitor and optimize application performance, troubleshoot issues, and implement continuous improvements
• Ensure compliance with DoD cybersecurity standards and support secure deployment practices

Required Qualifications

• Bachelor's degree in Computer Science, Information Systems, or Engineering
• 7–10 years of experience in full stack development, including front-end, back-end, and database integration
• Active DoD Secret Clearance
• Java certification or equivalent demonstrated expertise
• Proficiency in multiple programming languages such as Java, JavaScript, Python, C++, PHP, SQL
• Experience with database technologies including Oracle, MySQL, SQL Server, MongoDB, or Redis
• Strong understanding of cloud-based architecture and services (e.g., AWS, OCI)
• Experience with API integration, microservices, and secure web application development
• Familiarity with version control tools like Git, SVN, or Mercurial
• Experience with frameworks such as MEAN, Django, LAMP, or Ruby on Rails
• Strong knowledge of Linux and/or Windows operating systems
• Experience working with the Department of Defense or in a secure federal environment
• Familiarity with Agile/SAFe methodologies and participation in sprint planning, backlog grooming, and retrospectives
• Experience supporting configuration management, validation testing (SIT, GAT), and secure code deployment
• Knowledge of DevSecOps practices and CI/CD pipelines
• Experience with Oracle EBS and RICECPW components
• Familiarity with containerization (Docker, Kubernetes) and cloud-native development
• DOD 8570 IAT Level I certification required

Physical Requirements and Work Environment

• Must be able to work in a secure federal environment
• Standard office environment with computer workstation
• Ability to work on-site at Quantico, VA location

Travel

• Minimal travel required

Company Description

Obsidian Solutions Group LLC (OSG) is a fast-growing professional services firm based in Fredericksburg, VA. We create value for our customers by delivering technology-enabled & mission-oriented technical solutions that solve complex problems, protecting people, information, and assets. Our core capabilities are in providing Enterprise IT, Intelligence Analysis, Production & Development and Knowledge-Based Professional Services Solutions that enable the customer's mission. Obsidian Solutions Group LLC is a certified 8(a), service-disabled, veteran-owned small business.

A career at Obsidian Solutions Group means you are able to put your expertise, credentials, and talents to great use working with customers in the DOD and Intelligence Community, while enjoying the excitement of working in a fast-growing organization committed to making a difference for our customers and in our community. Contribute independently and collaboratively alongside our amazing team of doers and thinkers. Obsidian Solutions Group is small enough to offer a family atmosphere yet large enough to deliver a highly competitive compensation package. We hire and retain the best in the industry, offering exceptional benefits that protect the well-being of our employees, their spouses and domestic partners, and their families.

Our corporate philosophy is centered on hiring and retaining employees with the requisite skills, professional experience, personal commitment, and ethical standards necessary to foster a culture of operational excellence necessary to surpass our customer's expectations.

Disclaimer

The above information on this description has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities, and qualifications required of employees assigned to this job.

Obsidian Solutions Group is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, parental status, protected veteran status, and any other non-merit factor, or any other characteristic protected by law.

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