Frontend Engineer - Top Secret

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:

Parsons is seeking a talented Frontend Engineer to help develop next-generation applications supporting critical defense and national security missions. In this role, you will design and build highly responsive, intuitive user interfaces that help operators and decision-makers understand complex operational environments. You will work with large data streams, interactive 2D and 3D maps, real-time situational awareness tools, and other data-intensive visualizations. This is an opportunity to solve challenging frontend engineering problems while contributing to software that supports important missions. This is a hybrid role based in Tampa, FL. The selected candidate must be local and able to report to the customer site as needed.

What You'll Be Doing:

• Shape frontend architecture: Help define and evolve the architecture of complex applications using React, TypeScript, and modern state management patterns.
• Build data-rich interfaces: Develop intuitive, reusable user interface components for real-time data analysis, visualization, and mission-focused workflows.
• Develop mapping and visualization tools: Implement high-performance 2D and 3D mapping components using technologies such as OpenLayers, CesiumJS, WebGL, or comparable frameworks.
• Work with large datasets: Create interfaces capable of rendering and interacting with substantial geospatial datasets, real-time feeds, and multiple map layers.
• Optimize application performance: Identify and resolve rendering bottlenecks, memory issues, network inefficiencies, and interaction latency, including on hardware-constrained systems.
• Support data-intensive workflows: Use asynchronous programming, web workers, and efficient data-processing techniques to manage demanding visualization and analysis requirements.
• Integrate secure services: Collaborate with backend and DevOps engineers to integrate APIs, cloud-native services, authentication mechanisms, and secure data pipelines.
• Collaborate across disciplines: Work closely with UX and UI designers, product owners, systems engineers, and mission users to create effective and intuitive experiences.
• Maintain engineering quality: Write maintainable, well-tested code; participate in technical design discussions and code reviews; and promote frontend standards and best practices.
• Mentor and support teammates: Help mentor junior and mid-level engineers and contribute to a collaborative, high-performing engineering culture.
• Contribute to technical direction: Evaluate tools and technologies, identify opportunities for improvement, and help guide the evolution of the application platform.

Required Clearance:

• Must be a U.S. Citizen.
• Must have an active Top Secret Clearance.

What Required Skills You'll Bring:

• Must be a U.S. Citizen.
• Bachelor's Degree Computer Science, Computer Engineering or related field and 5+ years of professional software engineering experience with a heavy emphasis on React and modern frontend ecosystem tools. Additional years of experience may be considered in lieu of a degree.
• Significant professional experience developing frontend applications with React and TypeScript.
• Strong knowledge of modern JavaScript, including ES6 and later, asynchronous programming, and contemporary frontend development practices.
• Experience designing and implementing reusable, maintainable user interface components.
• Experience working with geospatial data, mapping technologies, or data visualization, including one or more of the following: GeoJSON, KML, Raster or vector tiles, Coordinate reference systems, Geospatial APIs, OpenLayers, CesiumJS, MapLibre, Mapbox, or comparable libraries
• Experience diagnosing and improving browser performance, including rendering, memory usage, network activity, and application responsiveness.
• Experience developing automated tests using tools such as Jest, Cypress, Playwright, or comparable frameworks.
• Strong communication, collaboration, and problem-solving skills.
• Ability to work effectively in a mission-focused and highly collaborative engineering environment.

What Desired Skills You'll Bring:

• Experience deploying applications in secure or regulated cloud environments, including AWS GovCloud.
• Familiarity with Docker, Kubernetes, and cloud-native application deployment.
• Experience supporting DoD cybersecurity or compliance requirements, including applicable Impact Level requirements.
• Experience developing 2D or 3D geospatial visualizations using CesiumJS, Three.js, WebGL, or related technologies.
• Experience developing custom WebGL shaders or optimizing GPU-accelerated visualizations.
• Experience processing real-time or streaming data.
• Experience working with geospatial databases, spatial analysis tools, or geospatial web services.
• Experience mentoring engineers or leading frontend technical initiatives.

Security Clearance Requirement:

An active Top Secret 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: $103,500.00 - $181,100.00 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! This position will be posted for a minimum of 3 days and will continue to be posted for an average of 30 days until a qualified applicant is selected or the position has been cancelled. 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 [