Intermediate Full Stack Developer

We are seeking an Intermediate Full Stack Developer to support the stabilization and modernization of a mission-critical legacy application for a federal government agency. This hands-on development position works closely with a solutions architect and a team of developers to implement technical solutions and support incremental modernization efforts.

You will contribute to development efforts that address technical debt and improve the existing environment while supporting a phased transition toward a scalable, modern application., * Work with the development team to troubleshoot, maintain, and improve existing application and database components, addressing defects and technical debt.

• Support data migration activities and database integration with minimal operational disruption.
• Implement development tasks aligned with a phased modernization roadmap, including refactoring and integration work as appropriate.
• Develop, test, debug, and maintain front-end and back-end application components in coordination with the technical team.

CollaborationStakeholder Engagement

• Work closely with program, development, and security teams to align execution with mission needs.
• Communicate development progress, technical issues, and potential risks to team members and stakeholders.
• Identify development dependencies and raise potential risks for team resolution.

• Bachelor’s degree in a relevant field
• 5+ years of full stack development experience
• Strong server-side development experience, including APIs and database integration (MySQL, Oracle, SQL Server)
• Experience developing modern web applications using HTML, CSS, JavaScript, and frameworks such as React, Angular, or Vue.js
• Demonstrated ability to ensure performance, scalability, and secure application development
• Familiarity with system architecture principles, version control, and full application lifecycle support
• Ability to pass a Public Trust background investigation

Desired Qualifications

• Experience modernizing legacy systems within federal government environments
• Experience in database redesign and data migration
• Experience implementing incremental modernization strategies (not just full rewrites)
• Familiarity with AWS cloud services or development in AWS environments.

Certifications (desired, not required):

• AWS Database Specialty
• Microsoft Certified: Azure Database Administrator Associate
• Oracle Database Architect Certified Professional
• Oracle Certified Professional: Java SE Developer
• Master’s degree in a related field

Ideal Candidate Profile

You thrive in complex environments where modernization must be balanced with operational continuity. You understand the realities of government environments and can communicate clearly with both technical teams and mission stakeholders. You bring hands-on capability, and a mindset that connects project success with broader organizational growth.

Location: Fully remote within the United States

Clearance: Ability to obtain and maintain a Public Trust

Education: Bachelor’s degree required; Master’s preferred

Experience: 5+ years

At OAS, we’re not just growing; we’re soaring! As a dynamic professional services firm, we specialize in powering the aviation industry forward. Our expertise? Crafting tailored strategies that blend cutting-edge technical solutions with deep organizational insights, all aimed at elevating our civilian and military aviation partners.