Senior Front-End Software Engineer - TS/SCI

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible. 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 the company, our people are anticipating what’s next to deliver the solutions our customers need now. Salary Range: $112,200.00 - $196,400.00 We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle! Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status. We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY! Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/. Founded in 1944, Parsons Corporation, a digitally enabled solutions provider, is focused on creating the future of the defense, intelligence, and critical infrastructure markets. From Earth to outer space, we deliver tomorrow’s solutions today. Equipped with the capabilities required to take on any defense, intelligence, or critical infrastructure challenge, our agile, innovative, and disruptive approach enables us to deliver solutions at the speed of relevance. Our people are our greatest asset. We strive to be an employer of choice that engages employees in the community and creates rewarding career paths to cultivate a resilient workforce that is ready for the future. For more about Parsons, visit parsons.com and follow us on Facebook, Twitter, LinkedIn, and YouTube.