Senior React Engineer — Mission‑Driven, Secure Web Apps

Applied Information Sciences, Inc; Washington (District of Columbia); On-site; USD 136,000 - 205,000; Full time

Benefits offered by this job

Competitive Salaries

Paid Time Off (PTO)

ESOP

Job summary

Applied Information Sciences, Inc. is seeking a Senior React Developer/Engineer to design, build, secure, and sustain modern web applications supporting high-visibility federal defense missions.

You will serve as a senior technical contributor on a Messaging Document Repository with DoD Impact Level 5, ensuring secure access and auditable workflows. You will work with TypeScript, React, and modern patterns, define frontend architecture, and lead through secure coding, testing, and Agile

Qualifications

• Bachelor’s degree in Computer Science or related field.
• 5+ years of professional software engineering with React.
• Strong proficiency with React, TypeScript, JavaScript, HTML, CSS.
• Experience with accessible, responsive UI and component libraries.
• Experience with secure API integration and CI/CD tooling.

Responsibilities

• Design and develop responsive React applications with TS.
• Define frontend architecture and state-management standards.
• Build interfaces for document ingestion and repository search.
• Implement secure, role-based access and authorization flows.
• Improve performance and optimize bundle size.
• Integrate with secure APIs and identity services.

Skills

React

TypeScript

JavaScript

Semantic HTML

CSS

Accessibility

Frontend architecture

Education

Bachelor's degree in Computer Science or related field

Tools

Docker

Kubernetes

Azure DevOps

GitHub Actions

Job description

Applied Information Sciences, Inc. is seeking a Senior React Developer/Engineer to design, build, secure, and sustain modern web applications supporting high-visibility federal defense missions.

You will serve as a senior technical contributor on a Messaging Document Repository with DoD Impact Level 5, ensuring secure access and auditable workflows. You will work with TypeScript, React, and modern patterns, define frontend architecture, and lead through secure coding, testing, and Agile