Mid-Level Full Stack Developer
R3 Management Services
Job Description
Job Description
Salary:
Mid-Level Full Stack Developer
Position Overview
The Mid-Level Full Stack Developer will support the design, development, enhancement, testing, and maintenance of web-based applications in support of enterprise system modernization and operations. The developer will work across both front-end and back-end technologies, with a focus on .NET, Angular, and Node.js, supporting full software development lifecycle activities in an Agile/DevOps environment.
The ideal candidate will have hands-on experience building secure, scalable, and user-friendly applications; developing APIs and microservices; resolving defects; supporting system enhancements; and collaborating with technical, functional, testing, security, and DevOps teams.
Candidates must be based in the Virginia/Washington, DC area and available for hybrid work, including onsite support in Fairfax, Virginia, as required.Key Responsibilities
- Design, develop, enhance, and maintain full-stack web applications using .NET / ASP.NET, Angular, Node.js, JavaScript, HTML, CSS, and related technologies.
- Support application modernization, system enhancements, defect resolution, performance improvements, and new feature development.
- Develop and integrate secure APIs, web services, and microservices in accordance with application architecture and security standards.
- Participate in Agile/Scrum activities, including sprint planning, backlog refinement, daily standups, demonstrations, and retrospectives.
- Translate user stories, business requirements, and technical specifications into working software.
- Support front-end development with responsive, accessible, and user-centered design practices.
- Support back-end development, including business logic, database interaction, data validation, and application integration.
- Perform unit testing, smoke testing, regression testing support, and troubleshooting across development, test, staging, and production environments.
- Support CI/CD pipelines, source code management, code reviews, release coordination, and deployment activities.
- Assist with application monitoring, log review, issue diagnosis, and production support.
- Address security findings, accessibility issues, and software defects in coordination with technical leads, security teams, and QA staff.
- Prepare and maintain technical documentation, design notes, release documentation, and system support materials.
- Collaborate with business analysts, product owners, architects, DevOps engineers, testers, and Government stakeholders.
Qualifications / Experience
- Bachelors Degree in Computer Science, Information Technology, Software Engineering, Computer Engineering, Information Systems, or a related technical field.
- Minimum 3+ years of professional IT experience.
- Minimum 3+ years of hands-on full-stack development experience using .NET / ASP.NET and Angular or Node.js.
- Experience developing and maintaining enterprise web applications.
- Experience with Agile or hybrid-Agile software development practices.
- Experience with API development, integration, and troubleshooting.
- Experience working with relational databases such as SQL Server, Oracle, MySQL, or PostgreSQL.
- Experience with version control tools such as Git or GitHub.
- Experience supporting testing, debugging, defect resolution, and production support activities.
Required Skills
- .NET / ASP.NET development
- Angular front-end development
- Node.js back-end or microservices development
- JavaScript / TypeScript
- HTML, CSS, responsive design
- REST APIs and web services
- SQL and relational database concepts
- Git/GitHub source control
- Agile/Scrum development
- Unit testing, regression testing support, and defect resolution
- CI/CD awareness and DevOps collaboration
- Application troubleshooting and performance optimization
- Strong written and verbal communication skills
Preferred Skills
- Experience with AWS or cloud-hosted application environments.
- Experience with Jenkins, Jira, Confluence, Slack, or similar collaboration and DevOps tools.
- Experience with application monitoring tools such as New Relic, Splunk, CloudWatch, or similar tools.
- Experience with Section 508 accessibility requirements.
- Experience supporting federal, healthcare, CMS, HHS, or other regulated IT environments.
- Experience with secure coding practices, vulnerability remediation, and OWASP principles.
- Experience with automated testing tools such as Selenium, TestRail, SonarQube, or similar tools.
Clearance / Security
- Must be able to obtain and maintain required background investigation or suitability clearance as required by the contract.
- Must comply with applicable information security, privacy, and system access requirements.
- Prior federal system development experience is preferred.
Salary
TBD
$130k - $180k
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