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