Full Stack Developer (Frontend Emphasis)

About Agile Defense   At Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.   Our vision is to bring adaptive innovation to support our nation's most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility—leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation’s vital interests.
Requisition #: 1605 Job Title: Full Stack Developer (Frontend Emphasis) Location: Hybrid, Scott AFB, IL Clearance Level: Secret, Must Have Ability to Obtain a Clearance Required Certification(s): Ability to obtain Security+

Job Description

We are seeking a Senior Full Stack Developer (Frontend Emphasis, React.js) to build and sustain a mission critical command and control system for the Mobility Air Force. Your work will focus on developing modern single page applications using React.js and TypeScript, improving the user experience, and ensuring seamless integration with secure backend APIs. You will contribute across the stack, but your specialization will be front end architecture, UI performance, and maintainable component development. 

You will collaborate closely with backend developers, guide UI design decisions, and mentor junior engineers within an Agile development environment. 

What you will do:

• Design, implement, test, and deploy single page applications built with React.js and TypeScript. 
• Participate in front end architecture decisions, including state management, component structure, routing, and build configuration. 
• Develop reusable UI components, forms, and interactive views aligned with mission workflows. 
• Integrate React applications with Java and .NET backend services and RESTful APIs. 
• Build automated tests for the UI, including unit, integration, and end to end tests. 
• Ensure accessibility, responsiveness, and adherence to modern UI best practices. 
• Optimize performance through code splitting, lazy loading, and efficient rendering strategies. 
• Implement secure front end patterns, including dependency hygiene, API input validation, and token handling. 
• Review and refactor front end code to ensure maintainability and consistent patterns. 
• Mentor team members on React, TypeScript, testing strategies, and SPA architecture.

Education and Background

• Minimum Experience: 5+ years of professional software development, including substantial front-end experience with React.js. 
• Experience owning front end architecture or major UI components in production SPA applications. 
• Bachelor’s degree in Computer Science, Engineering, or related field, or equivalent experience. 
• Ability to obtain or maintain a government security clearance. 
• Prior DoD or federal experience is strongly preferred.

Years of Experience

5 years

Required Skills

• Strong proficiency with React.js, TypeScript, SPA architecture, and modern JavaScript tooling. 
• Experience with front end state management solutions such as Redux, Zustand, Recoil, or Context APIs. 
• Familiarity with build tools such as Webpack, Vite, Babel, or similar. 
• Experience consuming RESTful APIs and collaborating with backend developers to shape API contracts. 
• Understanding of accessibility and compliance standards common in government systems. 
• Experience deploying front end applications to AWS services such as S3, CloudFront, API Gateway, and Cognito. 
• Strong troubleshooting skills in UI performance, rendering, and cross browser compatibility. 
• Self directed with the ability to own features from concept to production.

Preferred Skills

• HTML, CSS, JavaScript, and TypeScript. 
• React.js, React Router, and component-based architecture. 
• SPA security patterns for authenticated applications. 
• Modern front end testing frameworks such as Jest, React Testing Library, and Cypress. 
• RESTful API integration patterns. 
• Basic backend development in Java or .NET for full stack feature work. 
• Containerization concepts using Docker. 
• CI/CD practices for building, testing, and deploying front end assets. 
• Agile methodology.

Working Conditions

This position is eligible for remote work in the St. Louis area. However, the position requires a government security clearance, so candidates must be U.S. citizens and eligible for work without a visa sponsorship.

Benefits

In addition, Agile Defense invests in its employees beyond just compensation.  Agile’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Learning and Development opportunities as well as other optional benefit elections.   Our Core Values   Employees of Agile Defense are our number one priority, and the importance we place on our culture here is fundamental. Our culture is alive and evolving, but it always stays true to its roots. Here, you are valued as a family member, and we believe that we can accomplish great things together. Agile Defense has been highly successful in the past few years due to our employees and the culture we create together.    What makes us Agile? We call it the 6Hs, the values that define our culture and guide everything we do. Together, these values infuse vibrancy, integrity, and a tireless work ethic into advancing the most important national security and critical civilian missions. It's how we show up every day. It's who we are.  

• Happy - Be Infectious. Happiness multiplies and creates a positive and connected environment where motivation and satisfaction have an outsized effect on everything we do.
• Helpful - Be Supportive. Being helpful is the foundation of teamwork, resulting in a supportive atmosphere where collaboration flourishes, and collective success is celebrated.
• Honest - Be Trustworthy. Honesty serves as our compass, ensuring transparent communication and ethical conduct, essential to who we are and the complex domains we support.
• Humble - Be Grounded. Success is not achieved alone, humility ensures a culture of mutual respect, encouraging open communication, and a willingness to learn from one another and take on any task.
• Hungry - Be Eager. Our hunger for excellence drives an insatiable appetite for innovation and continuous improvement, propelling us forward in the face of new and unprecedented challenges.
• Hustle - Be Driven. Hustle is reflected in our relentless work ethic, where we are each committed to going above and beyond to advance the mission and achieve success.

  Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities