1778 - Web Developer

Sigma Defense•San Diego, CA

13d•$90,000 - $120,000•Onsite

About The Position

Sigma Defense is seeking a Web Developer to join our team in San Diego, CA. This role involves developing applications in DoD, federal government, or other highly regulated environments. The developer will maintain JSON Schemas, develop and maintain web-based distributed applications using React and modern JavaScript/TypeScript frameworks, and create administrative and data-driven interfaces using frameworks such as React Admin and Recharts. Responsibilities also include developing and maintaining RESTful APIs using Python-based backend services like Flask, configuring and maintaining PostgreSQL databases, and implementing authentication and authorization mechanisms using technologies like Keycloak. The role requires configuring and maintaining Windows Server environments, collaborating with various stakeholders to gather requirements and develop features, and troubleshooting applications. Additionally, the developer will create and maintain application frameworks, reusable components, and document system architecture, interfaces, and changes.

Requirements

6+ years of experience developing, deploying, and supporting application suites preferably in DoD or enterprise environments and in accordance with DoD Application Security and Development Security Technical Implementation Guides (ASD STIGs) and applicable cybersecurity requirements.
Experience with data analytics, reporting systems, and dashboard development, including presenting application metrics and operational data through web-based interfaces.
Experience working in offline, isolated, or restricted-network environments.
Understanding of application security, access control, secure API development.
Experience documenting system architecture, APIs, deployment procedures, and administrative processes.
Must be a U.S. citizen.

Nice To Haves

Experience with Docker/containerized applications is preferred.
Experience with CI/CD pipelines and automated testing is preferred.
Familiarity with Nginx or similar web servers/reverse proxies is preferred.
Possession of an active Secret security clearance is preferred but not required.

Responsibilities

Develop applications in DoD, federal government, or other highly regulated environments.
Maintain JSON Schemas to define data structures, required fields, data types, and validation rules.
Develop and maintain web based distributed applications using React and modern JavaScript/TypeScript frameworks, including administrative and data-driven interfaces using frameworks such as React Admin and Recharts.
Develop and maintain RESTful APIs to support application functionality, system integration, and data exchange, with experience using Python-based backend services such as Flask or comparable frameworks.
Configure, administer, and maintain PostgreSQL databases, including database schema design, SQL query development and optimization, migrations, data integrity, and backup/recovery.
Implement and maintain authentication, authorization, role-based access control (RBAC), and user account management, including technologies such as Keycloak, to enforce separation between user and administrator functions.
Configure and maintain Windows Server environments supporting application services, databases, APIs, and web applications.
Work directly with developers, testers, system administrators, subject matter experts, and end-users to gather requirements, identify user needs, and develop new features based on user feedback.
Troubleshoot and debug applications to identify and resolve software defects, performance issues, integration problems, and other operational issues.
Develop and maintain application frameworks and reusable software components, as well as documenting software architecture, configuration, interfaces, and software changes.