UI Full Stack Developer

UI Full Stack DeveloperThe Opportunity: We are seeking a mid-level Full Stack Developer with an emphasis on front-end development to design, develop, and deploy modern web applications supporting secure AWS environments operating at IL-4/5. This role is critical to transforming mission requirements into functional prototypes and production-ready systems that serve our users in regulated DoD environments.

You will support a large, multi-disciplined test team and a government client across a variety of projects and environments by implementing solutions to new and existing problems through code and digital transformations.

You will work across the entire application stack, from database design and backend API development to responsive frontend interfaces, using modern frameworks and tools. This position requires someone who can bring innovative ideas to the table, architect scalable solutions, and deliver high-quality code that meets both functional and security requirements for cloud-deployed applications.

What You’ll Work On:

• Design and develop responsive frontend applications using React, TypeScript (TSX), and modern build tools like Vite.
• Build and maintain backend services and APIs using FastAPI.
• Architect and implement database schemas, queries, and ORM integrations using SQLAlchemy and Postgres.
• Containerize applications using Docker and orchestrate multi-service applications with Docker Compose.
• Translate stakeholder and technical requirements into working prototypes and iteratively develop them into production systems.
• Develop large-scale applications with complex integrations, maintaining code quality and architectural consistency.
• Implement RESTful APIs that integrate with external services and data sources.
• Collaborate with DevOps engineers to ensure applications are deployment-ready for IL-5 environments.
• Integrate AI/ML models and services into web applications, including LLM APIs and intelligent features.
• Write clean, maintainable, and well-documented code following best practices and security guidelines.
• Contribute innovative ideas and technical solutions to improve application architecture, user experience, and development workflows.
• Participate in code reviews, technical design discussions, and agile development processes.
• Support application security requirements and remediate vulnerabilities identified through security scanning.

Join us. The world can’t wait.

You Have:

• 3+ years of experience designing, modifying, developing, writing, and implementing software programming applications
• 3+ years of xperience in full stack web application development with React and TypeScript or TSX for front end development
• 2+ years of experience with Docker and Docker Compose for containerized application development and deployment
• 2+ years of experience with ORMs, including SQLAlchemy or Django ORM, and relational database design and optimization
• 2+ years of experience developing backend services with Python frameworks such as FastAPI or Django
• 2+ years of experience of RESTful API design, implementation, and integration patterns
• Experience with Python testing frameworks, including pytest, and modern package management (UV)
• Ability to develop large-scale applications with multiple integrated components
• Ability to obtain a Secret clearance
• Bachelor’s degree, or 5+ years of experience in software development in lieu of a degree

Nice If You Have:

• Experience deploying applications into IL-5 or higher secure environments
• Experience with AWS cloud services, Lambda, S3, and serverless architectures
• Experience with CI/CD pipelines, automated testing frameworks, and deployment automation
• Experience with microservices architecture, distributed systems, and event-driven patterns
• Experience with WebSocket implementations for real-time applications
• Experience with infrastructure as code and cloud deployment patterns
• Experience with Apache Airflow
• Knowledge of modern frontend state management solutions such as Redux or React Query
• Secret clearance

Clearance: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information. Skills Assessment As part of Booz Allen’s skills first hiring process, candidates must complete the required skills assessment to ensure they meet the Basic Qualifications for this role. Candidates must complete the assessment and meet the minimum proficiency threshold to continue in the hiring process. Compensation At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page.

Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $86,800.00 to $198,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen’s total compensation package for employees. This posting will close within 90 days from the Posting Date. Identity Statement As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud.

Candidate AI Usage Policy AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on your own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited unless permission is explicitly provided.

Work Model Our people-first culture prioritizes the benefits of collaboration. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings.

• Remote: If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility.
• Hybrid: If this position is listed as hybrid, you will be expected to work from a Booz Allen or customer facility, in alignment with your leadership's expectations and the needs of the role.
• Onsite: If this position is listed as onsite, work will primarily be performed full-time at a customer facility, where employees will collaborate directly with colleagues and customers as required by the role.

Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.