UI/UX Software Developer-Principal

NetSage · Hanover, MD

Posted 8/13/2026 · last confirmed live 8/26/2026

At NetSage, we are more than a government contractor—we are a mission-focused partner dedicated to advancing national security through exceptional cyber expertise. We believe our success begins with our people, which is why we invest in and care for our employees. We know that employee retention is mission continuity, and we are committed to building long-term careers where our people can grow alongside our customers' evolving missions. Our employees enjoy meaningful work, competitive compensation, outstanding benefits, and opportunities to expand their skills across multiple mission areas. To learn more about our comprehensive benefits and what it's like to build your career at NetSage, visit our Careers page. Due to the sensitive nature of the work we support, some job descriptions intentionally provide a high-level overview of the role. If you'd like to learn more about a particular opportunity, we encourage you to apply directly or connect with us through our Get In Touch page. We'd be happy to discuss how your experience aligns with our mission and explore where you can make an impact. Job Description:   We are seeking a Principal Software Developer with a strong UX/UI background to support the development and sustainment of a mission-essential Learning Management System (LMS). In this role, you will provide technical leadership across the full software development lifecycle. You will guide the development team through planning and execution, establish sprint and release priorities, and ensure new capabilities are designed, implemented, tested, and delivered on schedule. The ideal candidate for this position will have experience leading development teams and have a strong background in web application development with familiarity working within an LMS environment. Please consider applying if you meet the following qualifications. Required Qualifications: TS/SCI security clearance. A Bachelor of Science (B.S.) degree in Computer Science or a related field and ten (10) years of relevant experience. Also acceptable is a Master of Science (M.S.) degree and five (5) years or no degree and thirteen (13) years of relevant experience. Strong experience developing modern web applications and user interfaces. Proficiency with a range of programming languages, frameworks, and web technologies to include: Python Shell scripting Go HTML/CSS JavaScript/TypeScript AJAX JSON/XML jQuery js React/Redux SQL and NoSQL databases Relational database technologies Experience with containerized application development and deployment using Docker or comparable technologies. Working knowledge of Kubernetes, including application deployment, scaling, administration, and troubleshooting. Experience with virtualization technologies such as VMware vCenter. Experience with Section 508 accessibility requirements and their application to UX/UI design and implementation. Experience leading a development team using Agile methodologies.

This role is published by NetSage on greenhouse. SwiftFit is not the employer and does not accept applications.