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Front-End Developer with Security Clearance

EverforthDenver, CO🇺🇸United StatesPosted 13 Jul 2026

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Denver, CO, United States
Posted
7 weeks ago
DockerMicroservicesSvelteAgileJavaScriptKafkaKubernetesTypeScriptWebSocket

Job Description

We are seeking an experienced Senior Front-End Software Developer who will be supporting the development of highly visible, mission-critical cloud-native applications that provide advanced Situational Awareness and Collaboration capabilities. This role focuses on building modern, responsive, and data-rich user interfaces that consume real-time information from distributed backend systems.

The successful candidate will have deep expertise in JavaScript and TypeScript development, experience building sophisticated front-end applications, and a strong understanding of how front-end systems interact with microservices, streaming platforms, and cloud-native architectures. You will work closely with backend engineers, architects, and mission stakeholders to build intuitive applications capable of processing and displaying large volumes of information in near real-time.

Success in this role requires a strong understanding of asynchronous programming, concurrency patterns, API integration, and modern front-end development practices. We use Svelte as its primary front-end framework. Prior Svelte experience is highly desired but not required for candidates with strong modern JavaScript framework expertise and a willingness to learn.

Key Responsibilities

  • Design, develop, and maintain modern cloud-native front-end applications using JavaScript, TypeScript, and contemporary web technologies.
  • Build highly intuitive user experiences that support mission-critical situational awareness and collaboration workflows.
  • Develop efficient client-side applications capable of handling large data sets, concurrent requests, and near real-time information updates.
  • Integrate front-end applications with RESTful APIs, WebSocket services, and distributed backend systems.
  • Collaborate closely with backend engineers to consume services and leverage event-driven architectures, including Kafka-based data streams.
  • Implement performant asynchronous data loading strategies utilizing promises, concurrency patterns, and modern browser capabilities.
  • Optimize application performance, responsiveness, and scalability across multiple operating environments.
  • Participate in architecture discussions and contribute to technical design decisions.
  • Conduct code reviews and promote software engineering best practices.
  • Mentor junior developers and contribute to the overall growth of the engineering team.
  • Participate in Agile ceremonies and continuous improvement initiatives. Required Qualifications
  • Minimum of 7 years of professional software development experience, with a strong focus on front-end engineering.
  • Advanced proficiency in JavaScript and TypeScript.
  • Experience developing and deploying applications within Linux-based environments.
  • Strong experience building modern web applications and user interfaces.
  • Experience consuming and integrating RESTful web services and APIs.
  • Strong understanding of asynchronous programming concepts, including Promises, async/await patterns, concurrency, and parallel data processing.
  • Experience building applications that support near real-time data delivery and dynamic user experiences.
  • Understanding of distributed systems and how front-end applications interact with microservices architectures.
  • Demonstrated ability to lead technical efforts and mentor junior engineers.
  • Bachelor's degree in Computer Science, Software Engineering, or related field; or graduation from an accredited coding bootcamp with equivalent experience.
  • Must possess or be willing to obtain a CompTIA Security+ certification.

Preferred Qualifications

  • Experience with Svelte or other modern front-end frameworks.
  • Experience developing applications utilizing WebSockets and real-time communication technologies.
  • Familiarity with Kafka and event-driven architectures, including consuming and visualizing data originating from streaming platforms.
  • Experience supporting highly concurrent applications with complex data-loading requirements.
  • Experience with Kubernetes, Docker, and cloud-native deployment environments.
  • Experience delivering mission-critical applications within government, defense, intelligence, or other secure environments.
  • Experience designing front-end architectures for highly available and scalable systems.
  • Security+ certification.

Clearance Level: TS/SCI with CI Polygraph

  • Position requires eligibility to access classified information and secure government facilities in support of program requirements.
  • Candidates selected for this position must be able to satisfy all government requirements for access to classified information associated with the program.
  • Experience working in classified environments and supporting mission-sensitive programs is highly desired.
  • Current TS/SCI eligibility and CI Polygraph are strongly preferred.

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