> Markdown version of [/jobs/ext/2987233-mss-developer-nic3io](https://www.wearedevelopers.com/jobs/ext/2987233-mss-developer-nic3io). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # MSS Developer (NIC3IO) - **Company:** PMAT Inc. - **Location:** San Diego, CA, United States - **Salary:** $70,000.0 - $90,000.0 - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Application Programming Interfaces (APIs), Application Services, Cascading Style Sheets (CSS), Data Presentation, Data Visualization, Software Design Patterns, Design of User Interfaces, Iterative and Incremental Development, Python (Programming Language), Object-Oriented Software Development, Responsive Web Design, Software Engineering, SQL Databases, TypeScript, Web Applications, Enterprise Data Management, Tailwind, ReactJS, Software Application Programming, Git, Material UI, Front End Software Development, Data Pipelines - **Published:** September 18, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9172683/mss-developer-nic3io ## About the Role * Experience designing and developing user interfaces, dashboards, data visualizations, or interactive web applications. * Experience developing applications or user-facing capabilities within MSS, Palantir Foundry, or similar enterprise data and application development environments. * Experience applying UI/UX design principles, including usability, information architecture, accessibility, visual hierarchy, and consistent interface design. * Experience with frontend development technologies, component-based application design, and modern web development practices. * Ability to translate complex data, technical requirements, and operational workflows into clear, intuitive, and actionable visual experiences. * Experience collaborating with end-users and cross-functional technical teams to gather requirements, incorporate feedback, and iteratively improve applications. * Strong analytical, problem-solving, and troubleshooting skills with the ability to identify and resolve usability and application issues. * Strong written and verbal communication skills with the ability to explain design decisions and technical concepts to developers, analysts, program stakeholders, and operational users. Preferred Skills and Experience: * Hands-on experience developing and maintaining Palantir Foundry Slate applications, custom widgets, dashboards, and visualization products. * Experience with TypeScript, JavaScript, React, HTML, CSS, Tailwind CSS, or related frontend development technologies. * Experience integrating Foundry Ontology objects, data pipelines, APIs, and application services into user-facing applications. * Experience with data visualization libraries, interactive charting, geospatial visualization, or advanced dashboard development. * Experience creating reusable component libraries, design systems, application templates, and UI/UX development standards. * Familiarity with object-oriented programming, Python, SQL, Git, and full-stack software development concepts. * Experience conducting usability testing, gathering operational user feedback, and refining applications through iterative development. * Experience supporting Navy, Department of War, government, or other mission-focused data and software environments. Education and Certification Requirements: Bachelor's Degree or Equivalent Experience Citizenship and Clearance Requirements: * S. Citizenship required * No dual citizenship * SECRET security clearance required * TS/(SCI Eligible) a plus ## Description * Design, develop, and enhance user interfaces, dashboards, and interactive visualizations within MSS and Palantir Foundry, with an emphasis on usability and operational effectiveness. * Build and refine Foundry Slate applications by improving layouts, navigation, data presentation, readability, and overall user experience. * Collaborate with data engineers, developers, analysts, and operational stakeholders to translate requirements and complex data workflows into intuitive, user-friendly applications. * Gather, evaluate, and incorporate end-user feedback to continuously improve application functionality, visualization effectiveness, and user experience. * Develop reusable UI components, templates, design patterns, and guidance to promote consistency and accelerate development across Foundry products. * Apply accessibility, responsive design, and usability principles to ensure applications support diverse users, workflows, and operational environments. * Support frontend development and integration activities by connecting user interfaces with Foundry Ontology objects, data pipelines, APIs, and supporting application services. * Test, troubleshoot, document, and maintain UI/UX solutions while collaborating with development teams to resolve issues and implement enhancements. ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Grappling With Clunky Old Software? 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