Web Application Developer

BT-233 – Web App Developer

Location: McLean, VA (fully on-site, no remote option)

• MUST HAVE A POLY CLEARANCE TO APPLY. Those without a Poly clearance will not be considered.**

Support systems with application development, deployment packaging to maintain sustainability and reliability.

Mandatory Skills

• Demonstrated experience developing modern web applications using JavaScript/TypeScript frameworks (Angular, React and Vue)
• Demonstrated experience with Node.js web frameworks and API development
• Proficiency with HTML5, CSS3, modern JavaScript (ES6+) and TypeScript
• Experience with CSS preprocessors (such as Sass)
• Experience designing and implementing Restful APIs and microservices
• Working knowledge of SQL databases including schema design, query optimization and performance tuning
• Experience with PostgreSQL and MySQL production environments
• Experience with ORMs such as Prisma, Sequelize
• Experience with containerization technologies such as Docker
• Familiarity with AWS cloud services and cloud-native development patterns
• Strong understanding of web application security best practices and usability principles
• Demonstrated experience with Git version control and collaborative environment workflows
• Strong problem solving skills including debugging testing and troubleshooting complex web applications

Optional Skills

• Experience with Elasticsearch
• Familiarity with Infrastructure as Code concepts (Terraform, CloudFormation)
• Contributions to technical documentation, architecture diagrams, and knowledgebases
• Experience with monitoring observability tools
• Background with geospatial libraries
• Experience migrating or modernizing legacy apps
• Working knowledge of CI/CD pipelines
• Experience integrating with data lake architectures or data intensive apps
• Experience with J2EE apps and containers
• Experience with PKI