Full Stack Developer, React, .NET
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Job Description
Full Stack Developer modernizing secure federal web platforms for Xcelerate Solutions. Building React/.NET applications, APIs, databases, and DevSecOps pipelines.
Responsibilities:
- Design, build, and maintain responsive, intuitive, accessible UIs with React.js, TypeScript, JavaScript, HTML5, CSS3/SCSS, and state management patterns
- Develop and maintain secure RESTful APIs, business logic layers, and services using C# and .NET Core / ASP.NET Core
- Implement web architecture patterns, SSO authentication, and content management integration
- Integrate workflow enhancements and assistive logic for customer requests and reporting workflows
- Design and optimize Microsoft SQL Server schemas, tables, indexes, views, and stored procedures
- Use Entity Framework Core or similar ORM frameworks for data access
- Develop automated data extraction and reporting for dashboards, KPI tracking, and analysis
- Support data modeling, integrity verification, and database refactoring
- Migrate applications and databases from on-premises data centers to cloud-native managed services
- Participate in Git-based CI/CD build, test, and deployment pipelines using tools such as GitLab and Azure DevOps
- Deploy updates across development, QA, staging, and production environments
- Provide Tier II and Tier III application and database engineering support
- Write unit, integration, and end-to-end automated tests using Automation-First and TDD practices
- Ensure compliance with Section 508 and WCAG 2.1 AA
- Conduct peer code reviews and maintain technical documentation
- Implement OWASP- and ASD STIG-aligned secure coding practices
- Remediate vulnerabilities found by SAST and SCA tools
- Support RMF activities, ATO evidence, POA&Ms, and security hardening
Requirements:
- Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related technical discipline; equivalent professional experience may be considered
- Minimum 5+ years of professional full-stack software development experience across the complete SDLC
- 3+ years of hands-on experience developing SPAs and modern web components using React.js and TypeScript/JavaScript
- 3+ years of experience designing, developing, and deploying backend services and RESTful APIs using C# and .NET Core / ASP.NET Core
- Strong working knowledge of relational database design, query optimization, and stored procedures using Microsoft SQL Server
- Practical experience with Entity Framework Core or similar ORM frameworks
- Experience with Git, collaborative branching strategies, and issue tracking tools such as Jira and GitLab
- Solid understanding of Section 508 / WCAG accessibility requirements
- Strong analytical, problem-solving, and debugging skills
- Ability to work productively within an Agile/Scrum team and communicate technical concepts clearly
- Active DoD 8570.01-M / DoD 8140 IAT Level II baseline certification or higher is required
- U.S. citizenship
- Public Trust or favorably adjudicated Secret Clearance at start
- Compliance with federal cybersecurity directives, OPSEC policies, and PII/CUI protection requirements
Benefits:
- Growth and development opportunities
- Great Place to Work certified company
- Equal Employment Opportunity/Affirmative Action commitment
- Reasonable accommodation for applicants or employees with disabilities
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