Senior Full Stack Engineer Jobs in Arlington, VA

Date: Jul 5, 2026

Location: Arlington, VA, Remote, United States

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Company: HII's Mission Technologies division

Requisition Number: 29232

Required Travel: 0 - 10%

Employment Type: Full Time/Salaried/Exempt

Anticipated Salary Range: $110,000.00 - $135,000.00

Security Clearance: Secret

Level of Experience: Mid

This opportunity resides with Warfare Systems (WS), a business group within HII’s Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR systems.

HII works within our nation’s intelligence and cyber operations communities to defend our interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners.

Meet HII’s Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you.

To learn more about Mission Technologies, click here for a short video: https://vimeo.com/732533072

Job Description

Join the growing Warfare Systems Business Group at HII-Mission Technologies! We are seeking a Full Stack Front-End Developer Mid-level (Software Development Analyst) to support the Defense Security Cooperation Agency (DSCA), Office of the CIO. In this role, you will design, develop, and modernize enterprise web applications with a strong emphasis on Single Page Applications (SPAs), user experience, and seamless integration with Microsoft SharePoint and Power Platform technologies. You will deliver intuitive, responsive interfaces and robust backend services that enhance workflow efficiency and support data-driven decision-making across security cooperation programs.

Essential Job Responsibilities
Researches, designs, develops, and/or modifies enterprise-wide systems and/or applications software. Involved in planning of system and development deployment as well as responsible for meeting software compliance standards. Evaluates interface between hardware and software, operational requirements, and characteristics of overall system. Documents testing and maintenance of system corrections
Develop and enhance Single Page Applications (SPAs) using TypeScript and modern JavaScript frameworks such as React.
Lead user experience modernization initiatives, creating responsive, accessible, and intuitive interfaces that improve usability and adoption.
Implement workflow interfaces and automate business processes through integrations with SharePoint Framework (SPFx), SharePoint APIs, Microsoft Graph API, Power Apps, and Power Automate.
Design and develop RESTful APIs and service layers to support seamless front-end and back-end integration.
Collaborate with cross-functional teams to deliver rapid iterative enhancements in an Agile environment.
Apply secure application development practices throughout the software development lifecycle to meet DoD security and compliance requirements.
Perform unit testing, integration testing, and support end-to-end quality assurance activities.
Document technical solutions, user guides, and system configurations as required.
Performs additional duties as assigned or required to advance mission goals.
Minimum Qualifications

Strong proficiency in modern JavaScript frameworks (React, Angular, or Vue) and responsive UI/UX development.
Experience with modern state management (Context API, TanStack Query, Redux, or equivalent).
Experience with REST API development and integration with front-end applications.
Solid understanding of Agile and iterative development methodologies.
Experience working with stakeholders to translate business processes into software requirements and solutions.
Ability to work independently while thriving in collaborative team settings.
Self-motivated initiator with strong problem-solving skills and a proactive approach.
Clearance: Must possess and maintain an active Secret clearance at the time of consideration
Remote-eligible position; must align with Eastern Time Zone core business hours

Software Development Analyst II

2 years relevant experience with Bachelors in related field; 0 years experience with Masters in related field; or High School Diploma or equivalent and 6 years relevant experience.

Software Development III

5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience. e.

***Salary level based on background, direct experience and education

Preferred Requirements
5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD in related field; or High School Diploma or equivalent and 9 years relevant experience.
Hands-on experience with SharePoint Online, PnPjs, SharePoint REST API, Microsoft Graph API, SharePoint Framework (SPFx) and, Microsoft Power Platform (Apps, Automate, BI).
Full-stack development experience with .NET, Python (Flask/Django), or similar backend technologies.
Knowledge of modern front-end tooling (TypeScript, Redux/Context API, CSS-in-JS, responsive design frameworks).
Experience modernizing legacy applications and implementing secure, enterprise-grade solutions in DoD or federal environments.
Familiarity with DevSecOps practices, CI/CD pipelines, and version control (Git).
Experience in SAFe Agile environments, including participation in PI planning and Scrum/Kanban ceremonies.
Demonstrated ability to deliver maintainable, user-focused web applications.
Physical Requirements
Ability to remain in a stationary position for prolonged periods while working at a computer.
Ability to operate a keyboard, mouse, and standard office equipment to perform analytical tasks.
Must be able to effectively communicate in virtual meetings, briefings, and secure collaboration environments.
Ability to review, analyze, and interpret digital data for extended periods with attention to detail and accuracy.
Occasional light lifting of documents or equipment up to 10 lbs, if needed for home-office setup.
Must maintain a home work environment that meets company and government security requirements (e.g., controlled space for handling sensitive or FOUO information, if applicable).
Must be able to work assigned East Coast core business hours to support program and customer requirements.

HII is more than a job - it’s an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.

Why HII
We build the world’s most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

Recognized as one of America’s top large company employers, we are a values and ethics driven organization that puts people’s safety and well-being first. Regardless of your role or where you serve, at HII, you’ll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career.

Together we are working to ensure a future where everyone can be free and thrive.
All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.

Do You Need Assistance?
If you need a reasonable accommodation for any part of the employment process, please send an e-mail to buildyourcareer@hii-co.com and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.