Associate Software Engineer

Constellation Inc

. Support mission-critical applications integrating data collection, operational reporting, and intelligent automation for national security objectives .

Posted 11/6/2026full-timeRemote • United StatesJuniorMid-Level💰 $110,000 - $130,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building responsive web applications using React, integrating backend services with Java/Spring, and ensuring code reliability through unit testing and CI/CD workflows. Strong collaboration skills are essential for working with cross-functional teams to deliver mission-critical capabilities.

Highest-signal resume keywords

React Application DevelopmentJava/Spring FrameworkHTML, TypeScript, CSS ProficiencyRESTful API UnderstandingUnit Testing with Jest

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

ReactJavaSpringHTMLTypeScriptCSSRESTful APIsUnit TestingCI/CD WorkflowsResponsive Design

Soft Skills

CollaborationCommunicationProblem-Solving

Tools & Technologies

GitCI/CD PipelinesComponent Libraries

Certifications & Qualifications

Bachelor’s Degree in Computer ScienceDHS Clearance with CBP/ICE or DoD Top-Secret

Industry Keywords

National SecurityMission-Critical ApplicationsIntelligent AutomationOperational ReportingSecure Web Development

Tech Stack

Tools & technologies

JavaJestReactSpringTypeScript.NET

About the role

Key responsibilities & impact

Support mission-critical applications integrating data collection, operational reporting, and intelligent automation for national security objectives
Collaborate with analysts, engineers, and stakeholders to design and deliver mission-focused capabilities across multiple workstreams
Translate complex data requirements into intuitive, high-performance user interfaces
Build and maintain responsive web applications using React
Integrate React applications with backend services and APIs
Support development of backend logic and data services using Java/Spring or equivalent frameworks
Participate in sprint planning, code reviews, and technical design sessions
Write unit tests and participate in CI/CD workflows to ensure production code reliability

Requirements

What you’ll need

2 - 5 years of professional experience in software development
Proven ability to work in frontend frameworks like React and backend ecosystems such as Java/Spring, C#/.NET, or similar enterprise-grade languages
Strong experience developing front-end applications using HTML, TypeScript, and CSS
Focus on responsive design and modern UI/UX
Strong understanding of RESTful APIs, React component design, and common component libraries
Understanding of secure web development practices
Proficiency in writing unit tests using frameworks such as Jest
Experience working in a collaborative code environment
Familiarity with Git, CI/CD pipelines, and modern development workflows
Bachelor’s degree in Computer Science, Software Engineering, or a related field
U.S. citizenship
Ability to pass a background investigation by the client agency
DHS clearance with CBP/ICE or DoD Top-Secret preferred
Must be capable of demonstrating experience in a live coding exercise using a React application

Benefits

Comp & perks

401(k)
401(k) contribution
Dental insurance
Medical insurance
Life & Disability insurance
Flexible spending account
Flexible schedule
Professional development
Work-life balance