Leidos LLC is hiring : Sr. UI / UX Front-End Development Engineer in Bethesda

Description

Leidos is seeking a skilled Sr. UI / UX Front-End Engineer to develop high-quality web applications using a state-of-the-art technology stack in support of the DOMEX Technology Platform (DTP) program. The platform uses AI to provide data enrichment, triage, and analytics capabilities for Defense and Intelligence Community partners. Most tasks are on-site at the client location in Bethesda, MD, with a flexible work schedule and occasional remote work; remote work percentage will vary based on client requirements / deliverables.

Candidates must have the ability to work in a dynamic and challenging environment and possess a solid understanding of the software development life cycle within an Agile framework.

You will work closely with end users, analysts, software and data engineers, and data scientists on the following key tasks :

• Develop and maintain web applications using ReactJS and Python .
• Coding, testing, and debugging new and / or existing web applications.
• Implementing and refining user interfaces.
• Conducting thorough unit testing via automated tooling.
• Collaborating with other team members (internal and external) to ensure optimal performance and usability.
• Peer reviewing code written by fellow team members.
• Utilizing virtualization technologies like Docker and Podman.

You bring enthusiasm and initiative while having the ability to work well with people from different disciplines with varying degrees of technical experience and meet the following qualification s :

You will wow us even more if you have some of these :

#NMECDTP-Leidos

If you’re looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We’re not hiring followers. We’re recruiting those who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We’re already at step 30 — and moving faster than anyone else dares.

Original Posting : September 15, 2025

Pay Range :

Pay Range $104,650.00 - $189,175.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in offering a salary include responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, market data, and applicable laws.

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