Senior Front-End Software Engineer - TS/SCI

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Job Description:

CTI, a Parsons Company, is seeking a Senior Front-End Software Engineer with a strong Frontend/UI focus to design and deliver mission-critical interfaces for operators and analysts in real-world operational environments. This position is ideal for candidates passionate about building high-performance, intuitive UIs with modern frontend frameworks and who excel in collaborative, Agile teams supporting Department of War (DoW) programs.

As a Senior Software Engineer, you will contribute throughout the entire development lifecycle—from requirements gathering and architecture through implementation, testing, and delivery. You will lead technical decisions and mentor other engineers.

What You'll Be Doing:

Responsibilities include, but are not limited to:

• Design, implement, and maintain USSOCOM’s MCS/COP government-owned software solution

• Lead frontend development for a large-scale, React-based mission control application

• Develop and maintain reusable UI components, patterns, and design systems for consistency and scalability

• Collaborate with UX designers, backend engineers, and systems teams to translate complex mission workflows into intuitive, responsive interfaces

• Apply frontend architecture best practices, including state management and performance optimization for data-dense, real-time environments

• Integrate data into UI components using APIs and backend services (Node.js)

• Drive frontend-focused testing strategies, including unit, integration, and UI behavior testing

• Mentor project engineers, providing technical leadership and guidance on UI quality and maintainability

• Participate in Agile ceremonies and PI planning, ensuring blockers are documented and resolved promptly

Required Clearance:

• Must be a US Citizen

• Must have an ACTIVE TS/SCI Clearance

What Required Skills You'll Bring:

• Bachelor’s degree in a STEM field and 8+ years of professional software development experience, with significant ownership of frontend/UI-heavy applications

• Additional years of experience will be considered in lieu of a degree

• Expert-level experience with React (functional components, hooks, context, Redux Toolkit) and TypeScript

• Strong understanding of frontend architecture, component-based design, and state management

• Familiarity with Node.js for backend integration

• Proven ability to lead technical decisions and mentor engineering teams

• Experience building UI for DoW or mission-critical systems is highly desirable

What Desired Skills You'll Bring:

• Master’s degree in software development, computer science, or a related field

• Excellent communication skills, both technical and non-technical, across multiple mediums

• Ability to write clean code and follow best practices for implementation, documentation, and testing

• Strong foundation in algorithms and data structures with practical application experience

• Passion for developing customer-focused solutions

• Experience designing or contributing to shared UI component libraries or design systems

• Experience with Tactical Assault Kit, Common Operational Picture (COP) platforms, and working with government teams

• Preparedness to discuss prior frontend architecture decisions, UI tradeoffs, and examples of complex React applications you have designed or led

Security Clearance Requirement:

An active Top Secret SCI security clearance is required for this position.​

This position is part of our Federal Solutions team.

The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout t