Senior Web Page Developer

MTSI is seeking a highly creative, user experience-focused Senior Web Developer with deep expertise in front-end development, modern UX/UI practices, and high-quality HMI design. The ideal candidate excels at transforming complex, data-rich information into clean, intuitive, visually compelling web interfaces that enable non-technical users and senior leaders to quickly understand system status, insights, and workflows. This role requires strong visual design instincts, exceptional front-end engineering skills, and a passion for crafting interfaces that simplify complexity.

Responsibilities

• Design and develop intuitive, visually stunning, highly functional web interfaces and HMIs.

• Create modern, responsive, and accessible front-end experiences using contemporary web technologies.

• Translate complex system outputs and data into clean, easy-to-navigate web applications.

• Develop interactive web pages, workflows, and visual displays tailored to non-technical and executive-level users.

• Drive UX/UI strategy through wireframing, prototyping, and iterative user testing.

• Ensure front-end performance, responsiveness, and cross-browser stability.

• Collaborate with systems engineers, designers, and other stakeholders to refine UI/UX requirements.

• Apply best practices in maintainability, code quality, version control, accessibility, and user-focused design.

• Troubleshoot UI issues, visual inconsistencies, and usability barriers in both new and legacy interfaces.

US citizenship and an active secret level clearance requried

• Bachelor’s degree in Computer Science, Software Engineering, Human-Computer Interaction, Digital Media, or related field.

• 7+ years of professional experience in front-end web development and UX/UI engineering.

• Demonstrated expertise in HTML5, CSS3, JavaScript, TypeScript.

• Experience with modern web frameworks such as React, Angular, or Vue.

• Expertise in UX/UI design methods, prototyping tools, and user-testing practices.

• Experience designing HMIs for highly interactive or data-rich applications.

• Strong ability to simplify complex workflows and present information visually and intuitively.

• Skilled in debugging, performance tuning, responsive design, and accessibility.

• Experience with Git or similar version control systems.

• Proven ability to work both independently and collaboratively within cross-functional teams.

Preferred Qualifications

• Master’s degree or higher in HCI, UX/UI Design, Software Engineering, or a related field.

• Experience designing HMIs for mission-critical, engineering, or real-time operational systems.

• Familiarity with CI/CD pipelines, DevSecOps workflows, or automated UI testing tools.

• Experience developing in Linux or mixed-platform environments.

• Experience producing executive-friendly data visualizations and workflow interfaces.