UI Software Engineer

📍 Job Overview

Job Title: UI Software Engineer Company: Peraton Location: Herndon, Virginia, United States Job Type: Full-Time Category: Software Engineering / Front-End Development / Operations Technology Date Posted: January 21, 2026 Experience Level: 5-10 Years (Mid-Senior Level) Remote Status: On-site

🚀 Role Summary

• Spearhead the development of sophisticated front-end applications utilizing modern JavaScript frameworks, with a strong emphasis on Vue.js and React, to deliver intuitive user interfaces for complex analytic systems.
• Design, implement, and optimize robust RESTful APIs, adhering to best practices in API design and data governance, ensuring seamless integration with back-end services and data sources.
• Actively participate in an Agile DevSecOps environment, contributing to all phases of the software development lifecycle, including continuous integration, continuous delivery (CI/CD), and automated testing.
• Leverage a comprehensive suite of DevSecOps tools and monitoring platforms to ensure application performance, security, and reliability throughout the development and deployment pipeline.
• Collaborate with cross-functional teams to translate business requirements into technical solutions, driving innovation and efficiency in the development of national security applications.

📝 Enhancement Note: While the title is "UI Software Engineer," the responsibilities heavily involve API development, integration, and a DevSecOps pipeline. This suggests a role that bridges front-end development with back-end service interaction and operational deployment, common in roles supporting government or national security projects where integrated solutions are paramount. The emphasis on "analytic applications" and "missions of consequence" points to a critical function within Peraton's operations.

📈 Primary Responsibilities

• Design, develop, test, and optimize modern JavaScript-based User Interfaces (UIs) for analytic applications, ensuring a responsive and user-friendly experience.
• Build and integrate RESTful APIs, applying established API design principles and data governance standards to manage data flow and ensure consistency.
• Execute development tasks within an Agile DevSecOps framework, actively participating in sprint planning, daily stand-ups, and retrospectives to ensure efficient project delivery.
• Utilize and contribute to the full DevSecOps pipeline, including tools like JIRA for workflow management, Git for version control, Jenkins for CI/CD, SonarQube and Fortify for code quality and security analysis, and Artifactory for artifact management.
• Employ monitoring and performance analysis tools such as AppDynamics, CloudWatch, and Splunk to proactively identify and resolve performance bottlenecks, ensuring application stability and uptime.
• Contribute to test-driven development (TDD) methodologies, writing comprehensive unit, integration, and end-to-end tests to ensure code quality and system reliability.
• Collaborate with back-end engineers, security specialists, and operations teams to ensure seamless integration of front-end components with server-side logic and infrastructure.
• Apply data governance principles during API development and data handling to maintain data integrity, security, and compliance.

📝 Enhancement Note: The explicit mention of a "DevSecOps pipeline" and specific tools like JIRA, Git, Jenkins, SonarQube, Fortify, and Artifactory indicates a strong emphasis on operational efficiency, security, and automated deployment processes. This goes beyond typical UI development and implies that the engineer will be deeply involved in the operational aspects of software delivery.

🎓 Skills & Qualifications

Education:

• Bachelor’s degree in Computer Science, Engineering, or a related technical field, with a minimum of 5 years of relevant professional experience.
• OR Master’s degree in a relevant field, with a minimum of 3 years of relevant professional experience.
• OR Ph.D. in a relevant field, with 0+ years of relevant professional experience.
• Alternatively, 4 years of directly relevant experience may be considered in lieu of a degree requirement for specific circumstances.

Experience:

• Demonstrated experience in designing, developing, and deploying complex front-end applications.
• Proven track record of working within Agile development methodologies and contributing to sprint cycles.
• Experience with the full software development lifecycle, from requirements gathering to deployment and maintenance.

Required Skills:

• Strong proficiency in modern JavaScript frameworks, specifically Vue.js or React.
• Extensive experience in building and integrating RESTful APIs, understanding principles of API design and data exchange formats like JSON.
• Solid understanding and practical application of Agile development methodologies.
• Proficiency in Python for scripting, automation, or back-end support.
• Experience with Node.js for server-side JavaScript development.
• Familiarity with Neo4j for graph database interactions.
• Active Top Secret/Sensitive Compartmented Information (TS/SCI) security clearance, with the ability to obtain and pass a polygraph examination.

Preferred Skills:

• Knowledge of PostgreSQL for relational database management.
• Experience with cloud computing platforms, particularly Amazon Web Services (AWS).
• Familiarity with containerization and orchestration technologies such as OpenShift or Kubernetes.
• Experience with monitoring and performance analysis tools (e.g., AppDynamics, CloudWatch, Splunk).
• Understanding of data governance principles and their application in software development.

📝 Enhancement Note: The requirement for a TS/SCI clearance with polygraph is a significant qualification that narrows the candidate pool to individuals with specific security vetting. The combination of front-end skills (Vue.js/React), back-end interaction (Node.js, Neo4j, Python), and operational tools (DevSecOps, monitoring) highlights a full-stack, operations-aware role critical for national security projects.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase of deployed front-end applications built with Vue.js or React, demonstrating UI/UX design principles and responsiveness.
• Examples of API integration projects, highlighting the ability to consume and interact with RESTful services, ideally with accompanying documentation on API design considerations.
• Case studies detailing contributions to Agile sprint workflows, illustrating participation in planning, execution, and review phases with measurable outcomes.
• Demonstrations of experience with DevSecOps tools, such as Git for version control, or contributions to CI/CD pipelines using tools like Jenkins.

Process Documentation:

• Evidence of contributions to workflow design and optimization within an Agile framework, potentially including process diagrams or descriptions of iterative improvements.
• Documentation or examples of how you've implemented or automated testing processes, aligning with test-driven development (TDD) principles.
• Examples of how you have utilized monitoring or performance analysis tools (e.g., Splunk, CloudWatch) to identify issues and drive process improvements in operational environments.
• Contributions to API design documentation, including adherence to data governance principles and best practices for RESTful service development.

📝 Enhancement Note: For a role with strong DevSecOps and API components, a portfolio should go beyond just UI mockups. It needs to demonstrate the candidate's ability to integrate systems, manage code through CI/CD pipelines, and contribute to robust, secure, and performant applications within an operational context. Quantifiable results and clear process descriptions are key.

💵 Compensation & Benefits

Salary Range: $104,000 - $166,000 USD per year. This range is a guideline, and the final salary will be determined based on the candidate's experience, skills, education, location, and other relevant factors.

Benefits:

• Comprehensive health, dental, and vision insurance plans.
• Retirement savings plan with company match (e.g., 401(k)).
• Paid time off (PTO), including vacation, sick leave, and holidays.
• Life insurance and disability coverage.
• Potential for performance-based bonuses and overtime pay.
• Opportunities for professional development, training, and certifications.
• Access to advanced technology and tools within a mission-driven organization.

Working Hours: 40 hours per week, standard business hours, with potential for overtime as required by project demands.

📝 Enhancement Note: The salary range provided is competitive for a UI Software Engineer with 5-10 years of experience in the Herndon, VA area, especially for roles requiring a TS/SCI clearance. The benefits listed are typical for a company of Peraton's size and industry, focusing on employee well-being and professional growth.

🎯 Team & Company Context

🏢 Company Culture

Industry: National Security, Government Contracting, Technology Solutions. Peraton operates at the intersection of traditional and non-traditional threats, providing critical mission capabilities for government agencies and military branches. This context implies a culture that prioritizes security, reliability, and mission success. Company Size: Large Enterprise. Peraton is a significant player in the national security space, indicating a structured organization with established processes and a wide range of projects. This scale offers opportunities for diverse project exposure and career development. Founded: Peraton has a history rooted in defense and government contracting, evolving into a next-generation national security company. This heritage suggests a stable, established organization with a deep understanding of its core mission.

Team Structure:

• The UI Software Engineer will likely be part of a larger software development team, potentially within a dedicated engineering department or a project-specific unit.
• The team structure will emphasize cross-functional collaboration, involving front-end developers, back-end engineers, DevOps specialists, security analysts, and project managers.
• Reporting lines will typically be to a technical lead or engineering manager, with close interaction with product owners and stakeholders who define application requirements.

Methodology:

• Data Analysis and Insights: Emphasis on using data from monitoring tools (Splunk, CloudWatch) and performance metrics to inform UI/API improvements and operational decisions.
• Workflow Planning and Optimization: Application of Agile methodologies (Scrum) for iterative development, continuous integration, and continuous delivery (CI/CD) to streamline the software delivery pipeline.
• Automation and Efficiency Practices: Integration of automated testing, CI/CD pipelines, and containerization (OpenShift/Kubernetes) to enhance development speed, reduce manual effort, and improve system reliability.

Company Website: https://www.peraton.com/

📝 Enhancement Note: Peraton's focus on "missions of consequence" and "national security" suggests a work environment that values precision, security, and dedication. The company's size and industry imply a professional atmosphere with clear career paths and a structured approach to project execution, particularly in their DevSecOps and Agile practices.

📈 Career & Growth Analysis

Operations Career Level: This role sits at a Mid-Senior level for a UI Software Engineer. It requires not only strong front-end development skills (Vue.js/React) but also significant experience in API development and integration, along with a deep understanding of DevSecOps principles and tools. The TS/SCI clearance further elevates the role's seniority and criticality.

Reporting Structure: The UI Software Engineer will likely report to a Software Engineering Manager or a Technical Lead. They will work collaboratively with a team of engineers, product managers, and potentially security and operations personnel, forming a cross-functional unit focused on delivering specific mission-critical applications.

Operations Impact: The work directly impacts the operational effectiveness of national security missions. By building and enhancing analytic applications and their underlying APIs, this role contributes to the intelligence gathering, decision-making, and operational execution capabilities of government agencies and military branches. The efficiency and reliability of the developed UIs and APIs have a direct correlation with mission success and national security outcomes.

Growth Opportunities:

• Operations Skill Advancement: Opportunities to deepen expertise in DevSecOps, CI/CD, cloud technologies (AWS), and containerization (OpenShift/Kubernetes) through hands-on project work and company-sponsored training.
• Technical Specialization: Potential to specialize further in areas such as API architecture, front-end performance optimization, or security-focused development within the national security domain.
• Leadership Potential: Advancement to senior engineer, technical lead, or architect roles, guiding project teams, mentoring junior engineers, and contributing to strategic technical decisions.
• Cross-Functional Exposure: Opportunities to gain broader experience by working on diverse projects across Peraton's portfolio, potentially leading to roles in program management or systems engineering.

📝 Enhancement Note: The combination of technical depth (UI, API, DevSecOps) and the security clearance suggests a role with significant growth potential within Peraton's specialized environment. The emphasis on "missions of consequence" means that successful engineers are highly valued and often provided with opportunities for advancement and specialized training.

🌐 Work Environment

Office Type: Peraton operates in a professional, corporate office environment. Given the on-site requirement, expect a structured workspace conducive to focused development and team collaboration. Facilities will likely include modern office spaces, meeting rooms, and potentially secure areas for classified work, given the TS/SCI clearance requirement.

Office Location(s): The position is on-site in Herndon, Virginia. This location is part of the Northern Virginia technology corridor, offering access to a skilled workforce and proximity to various government agencies and defense contractors.

Workspace Context:

• Collaborative Environment: Expect regular team meetings, pair programming sessions, and cross-functional discussions to ensure alignment on project goals and technical approaches.
• Operations Tools and Technology: The workspace will be equipped with standard office technology, high-speed internet, and access to the necessary software and development tools, including secure network access for classified projects.
• Team Interaction: Opportunities for direct interaction with colleagues, managers, and potentially end-users or stakeholders to gather feedback and ensure the developed applications meet operational needs effectively.

Work Schedule: The standard work schedule is 40 hours per week, typically during business hours. However, given the nature of national security projects, there may be instances where flexibility or extended hours are required to meet critical deadlines or address urgent operational needs.

📝 Enhancement Note: The on-site requirement in Herndon, VA, combined with the national security focus, suggests a professional and secure work environment. The emphasis on collaboration and the use of specific tools indicates a dynamic, project-driven setting where operational efficiency is paramount.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: HR or recruiter call to assess basic qualifications, interest, and security clearance status.
• Technical Interview(s): One or more rounds focusing on core UI development skills (JavaScript, Vue.js/React), API design and development (REST, JSON), and potentially coding challenges. Expect questions on data structures, algorithms, and problem-solving.
• DevSecOps & Operations Focus: Interviews may delve into experience with the DevSecOps pipeline, CI/CD, containerization, and monitoring tools. Questions might assess your understanding of secure coding practices and operational deployment.
• Behavioral Interview: Assessment of cultural fit, teamwork, communication skills, and experience with Agile methodologies. Questions will focus on how you handle challenges, collaborate with teams, and contribute to mission success.
• Security Clearance Verification: Formal process to verify the TS/SCI clearance.
• Final Interview: Potentially with a hiring manager or senior leadership to discuss role alignment, career aspirations, and final suitability.

Portfolio Review Tips:

• Highlight UI/UX Impact: For projects using Vue.js or React, clearly demonstrate how your UI designs improved user experience, efficiency, or task completion rates. Use screenshots and interactive demos where possible.
• Showcase API Integration: Present examples of APIs you've built or integrated with. Detail the technologies used, the data formats (JSON), and any considerations for scalability, security, and error handling.
• Quantify DevSecOps Contributions: If possible, showcase projects where you actively contributed to CI/CD pipelines, automated testing frameworks, or code quality initiatives. Use metrics to demonstrate improvements in deployment frequency, bug reduction, or test coverage.
• Focus on Problem-Solving: For each project, clearly articulate the problem you were trying to solve, your approach, the tools and technologies you used, and the measurable outcomes or impact.
• Tailor to Peraton: Emphasize projects that align with Peraton's mission in national security, data analytics, or complex system integration.

Challenge Preparation:

• Coding Exercises: Practice JavaScript, Vue.js/React coding challenges, and algorithms. Be prepared to write code live or on a shared editor.
• API Design Scenarios: Think through how you would design a RESTful API for a given scenario, considering aspects like endpoints, request/response structures, authentication, and versioning.
• DevSecOps Scenarios: Be ready to discuss how you would troubleshoot a deployment issue in a Jenkins pipeline, or how you would integrate a new monitoring tool like Splunk.
• Agile Discussion: Prepare to discuss your experience with Agile ceremonies and how you contribute to team velocity and continuous improvement.

📝 Enhancement Note: Given the technical depth and security requirements, expect a rigorous interview process. The portfolio review will be crucial for demonstrating practical skills beyond just theoretical knowledge, especially in the DevSecOps and API integration aspects.

🛠 Tools & Technology Stack

Primary Tools:

• Front-End Frameworks: Vue.js, React.js
• JavaScript: ES6+
• API Development: Node.js, RESTful API design principles, JSON
• Version Control: Git
• Containerization/Orchestration: OpenShift, Kubernetes (preferred)
• Databases: Neo4j (required), PostgreSQL (preferred)

Analytics & Reporting:

• Monitoring & Logging: AppDynamics, CloudWatch, Splunk
• CI/CD Tools: Jenkins
• Code Analysis: SonarQube, Fortify

CRM & Automation:

• Project Management: JIRA

Integration Tools:

• Experience with integrating various services and data sources is expected.

📝 Enhancement Note: This stack indicates a modern, robust development environment focused on building scalable, secure, and observable applications. Proficiency in these tools, especially Vue.js/React, Node.js, Neo4j, and the DevSecOps suite, will be critical for success.

👥 Team Culture & Values

Operations Values:

• Mission Focus: A strong commitment to supporting national security objectives and delivering high-impact solutions for government clients.
• Integrity & Security: Upholding the highest standards of ethical conduct, data security, and operational integrity, especially critical given the TS/SCI clearance requirement.
• Innovation & Excellence: Driving continuous improvement through technological advancement, creative problem-solving, and a pursuit of engineering excellence in all deliverables.
• Collaboration & Teamwork: Fostering an environment where diverse perspectives are valued, and team members work together effectively to achieve common goals.
• Accountability: Taking ownership of responsibilities, delivering on commitments, and ensuring the reliability and performance of developed systems.

Collaboration Style:

• Cross-functional Integration: Proactive engagement with back-end engineers, DevOps specialists, security teams, and product managers to ensure seamless development and deployment.
• Process Improvement Focus: Openness to feedback and active participation in retrospectives to identify and implement improvements in development workflows, code quality, and operational efficiency.
• Knowledge Sharing Culture: Willingness to share expertise, mentor junior team members, and contribute to a collective understanding of best practices in UI development, API design, and DevSecOps.

📝 Enhancement Note: Peraton's culture likely emphasizes professionalism, diligence, and a results-oriented approach, aligning with the demands of national security work. The team's collaboration style will be geared towards efficient, secure, and reliable delivery of complex software solutions.

⚡ Challenges & Growth Opportunities

Challenges:

• Security Compliance: Navigating and adhering to stringent security protocols and compliance requirements inherent in national security projects.
• Complex System Integration: Integrating front-end applications with diverse back-end services and legacy systems within a large enterprise.
• Rapid Technological Evolution: Staying abreast of the fast-paced changes in front-end technologies, API standards, and DevSecOps practices.
• Mission-Critical Demands: Meeting the high expectations for performance, reliability, and availability required for applications supporting critical national security missions.

Learning & Development Opportunities:

• Advanced Technology Training: Access to training programs and resources to deepen expertise in areas like cloud architecture (AWS), container orchestration (Kubernetes/OpenShift), and advanced JavaScript frameworks.
• Security Certifications: Opportunities to pursue certifications related to cybersecurity, cloud security, or specific government compliance standards.
• Mentorship Programs: Participation in mentorship programs to receive guidance from experienced engineers and leaders within Peraton.
• Cross-Domain Exposure: Potential to work on projects spanning different domains (e.g., intelligence analysis, cyber operations) to broaden technical and operational understanding.

📝 Enhancement Note: The challenges are directly tied to the high-stakes nature of Peraton's work, offering significant opportunities for professional growth in specialized and in-demand areas.

💡 Interview Preparation

Strategy Questions:

• UI/API Design Strategy: "Describe the process you follow when designing a new UI component or a RESTful API endpoint from initial requirement to deployment. What are your considerations for scalability, security, and maintainability?" (Focus on structured approach, key decision points, and relevant technologies like JSON, OpenAPI/Swagger).
• DevSecOps Integration: "How have you contributed to a DevSecOps pipeline? Walk me through a scenario where you used tools like Jenkins, Git, or SonarQube to improve the development or deployment process." (Emphasize your hands-on experience and understanding of CI/CD benefits).
• Problem-Solving with Operations Context: "Imagine a critical analytic application is experiencing slow load times in production. How would you diagnose the issue, considering both front-end and API aspects, and what steps would you take to resolve it?" (Demonstrate your troubleshooting methodology, use of monitoring tools, and understanding of performance optimization).

Company & Culture Questions:

• "What interests you about Peraton and our mission in national security?" (Research Peraton's recent projects, values, and the specific impact of their work).
• "How do you approach collaboration within a cross-functional team, especially when working on a project with a tight deadline?" (Provide examples of teamwork, communication, and conflict resolution in past Agile environments).
• "How do you ensure the security of the applications you develop, particularly in a sensitive environment?" (Discuss your understanding of secure coding practices, data protection, and any experience with security reviews).

Portfolio Presentation Strategy:

• Quantify Impact: For each project, clearly state the problem, your solution, the technologies used, and the measurable outcome (e.g., "Reduced page load time by 20%", "Increased user task completion rate by 15%", "Automated deployment process, reducing manual effort by 4 hours per release").
• Showcase Technical Depth: Be prepared to walk through code snippets or architecture diagrams that highlight your proficiency in Vue.js/React, Node.js, RESTful API design, and DevSecOps tools.
• Tell a Story: Frame your portfolio projects as mini-case studies. Explain the context, your role, the challenges faced, your specific contributions, and the results achieved.
• Demonstrate Operational Awareness: Explicitly connect your work to operational efficiency, reliability, and security. Explain how your development choices contribute to the overall success of the application in its intended operational environment.

📝 Enhancement Note: The interview process will thoroughly assess your technical skills, operational awareness, and security posture. Preparing specific examples that demonstrate your ability to deliver robust, secure, and efficient applications within a demanding environment is key.

📌 Application Steps

To apply for this UI Software Engineer position:

• Submit your application through the provided link on the Peraton careers portal.
• Tailor your resume: Highlight keywords and responsibilities that directly align with the job description, such as Vue.js, React, API Development, RESTful APIs, Node.js, Neo4j, DevSecOps, Agile, TS/SCI clearance, and experience with specific tools like Jenkins, JIRA, Splunk. Quantify your achievements with metrics wherever possible.
• Prepare your portfolio: Curate examples of your best work, focusing on UI/UX impact, API integration, and any contributions to DevSecOps or automated processes. Be ready to discuss these projects in detail, emphasizing problem-solving and measurable results.
• Research Peraton: Familiarize yourself with Peraton's mission, values, and recent projects, particularly those related to national security and technology solutions. Understand their commitment to DevSecOps and Agile methodologies.
• Practice interview responses: Rehearse answers to common technical, behavioral, and situational questions, focusing on providing clear, concise, and impactful examples that demonstrate your skills and experience relevant to this role.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.