Senior Application Developer (JavaScript/React)

cFocus Software Incorporated; Remote; USD 100,000 - 130,000; Full time

Job summary

A software development company is seeking a remote Sr. Application Developer (JavaScript/React) to support the United States Secret Services. The ideal candidate will have over 10 years of experience in application development, with a focus on building enterprise-scale web applications and integrating GIS solutions. Responsibilities include designing secure applications, collaborating with teams, and ensuring compliance with cybersecurity requirements. This position requires obtaining a Public Trust clearance.

Qualifications

• 10+ years of experience in application development with a focus on JavaScript and React.
• Experience developing enterprise-scale web applications and integrating with GIS platforms.
• Strong knowledge of HTML5, CSS3, and modern front-end frameworks.

Responsibilities

• Design and develop secure, scalable web applications using JavaScript and React.
• Develop user-facing GIS applications and dashboards integrating with ArcGIS.
• Collaborate with engineers to implement end-to-end solutions.

Skills

JavaScript

React

Enterprise-scale web applications

GIS platforms

HTML5

CSS3

API integration

Asynchronous programming

Agile/Scrum development

Education

Bachelor’s degree in Computer Science or related field

Job description

Overview

Focus Software seeks a Sr. Application Developer (JavaScript/React) to join our program supporting the United States Secret Services (USSS). This position is remote. This position requires the ability a Public Trust clearance.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field (or equivalent experience).
• Minimum of 10 years of experience in application development, with strong emphasis on JavaScript and React.
• Demonstrated experience developing enterprise-scale web applications.
• Hands‑on experience integrating with GIS platforms such as ESRI ArcGIS Enterprise and REST services.
• Strong knowledge of HTML5, CSS3, JavaScript (ES6+), and modern front‑end frameworks.
• Experience with API integration, asynchronous programming, and state management.
• Experience working in Agile/Scrum development environments.
• Familiarity with federal cybersecurity requirements, secure coding, and vulnerability remediation.
• Ability to obtain and maintain a DHS Tier 4a Background Investigation.

Duties

• Design, develop, and maintain secure, scalable web applications using JavaScript, React, and modern front‑end frameworks.
• Develop user‑facing GIS applications and dashboards that integrate with ArcGIS Enterprise, ArcGIS REST APIs, and geospatial services.
• Collaborate with GIS architects, system engineers, and back‑end developers to implement end‑to‑end solutions.
• Develop reusable UI components and application frameworks following best practices.
• Ensure applications meet performance, scalability, and availability requirements.
• Implement secure coding practices aligned with DHS and USSS cybersecurity requirements.
• Support SELC activities including requirements analysis, design reviews, testing, deployment, operations, and disposition.
• Participate in Agile development activities including sprint planning, daily standups, demos, and retrospectives.
• Develop and maintain technical documentation, code repositories, and configuration artifacts.
• Integrate applications with CI/CD pipelines and automated testing frameworks.
• Support application security testing, vulnerability remediation, and code reviews.
• Ensure Section 508 accessibility compliance for all developed applications.
• Provide Tier 3 support for application issues, incident response, and system enhancements.