Job Requirements Aurora, CO Top Secret/SCI Polygraph Unspecified Senior Level Career (10+ yrs experience) Salary not specified Join Premium to unlock estimated salaries

Job Description Job Title:

Principal Software Engineer Work Location:

Aurora, CO Duration:

Long-term contract with option to hire

Clearance:

TS/SCI w/

Poly Job Description:

We are seeking a Principal Software Engineer with experience building modern web applications using React and the backend services that support them. This role focuses on modernizing our front‐end architecture, implementing new React-based interfaces, and developing the underlying back-end infrastructure and web server functionality required for a responsive and scalable application. You will design and maintain server-side components that handle incoming requests, manage persistent client connections, and provide the data pipelines the front end depends on. This includes establishing the environment, tooling, and integration patterns necessary for a clean, maintainable React application.

Responsibilities :

Develop and maintain React-based front-end features and the back-end services that support them Build and configure web server components that handle client requests and application data flows Implement mechanisms for managing client connections and delivering responsive UI interactions Set up modern front-end tooling, build pipelines, and testing frameworks Ensure reliability, performance, security, and usability across the full stack Apply sound engineering practices throughout design, development, testing, and deployment

Skills & Qualifications :

Experience building production React applications Experience developing or integrating backend services or web server components Strong understanding of JavaScript/TypeScript and modern UI architecture Familiarity with request/response patterns, client connection handling, and server-side integration Knowledge of front-end build tools and automated testing frameworks Ability to collaborate across teams and deliver maintainable, scalable solutions group id: 10104921 Log in to view the job poster Apply now