Full Stack Developer

Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

ManTech’s Digital Transformation Division is seeking an experienced Full Stack Developer to join our technical team, contributing to the development of multiple web applications for the United States ARMY Human Resources Command. This role offers the unique opportunity to be a part of a dynamic team responsible for designing, developing, and deploying modernized business applications that serve the ARMY HR community. As a full-time, remote employee in an agile environment, you'll find a highly rewarding work atmosphere filled with training and professional growth opportunities.

What You’ll Get to Do:

Directly engage in the full software development life cycle (SDLC), from requirements gathering and analysis to design, development, and implementation, using Agile methodologies. Join a high-performing team to design, develop, and implement enterprise solutions using the latest tools and technologies. Be a key collaborator, where your insights and recommendations drive the modernization and enhancement of our client applications, impacting both performance and user experience. Work hands-on with Azure cloud services, staying at the forefront of cloud-based solutions and digital innovation. Develop critical applications used by over 100,000 users, making a meaningful impact on a large and diverse audience. Implement cybersecurity best practices and meet rigorous Department of Defense standards to ensure the highest security and compliance levels in our solutions.

Responsibilities include, but are not limited to:

Collaborate with stakeholders to translate business requirements into technical solutions. Engage in both front-end and back-end development, playing a key role in full-stack application development. Develop and maintain secure REST API endpoints using ASP.NET, incorporating robust user permissions and data validation. Create responsive, front-end user interfaces for Single Page Application (SPA) web apps using React and JavaScript. Focus on modernizing and rewriting legacy applications, aiming to migrate them and their resources to the cloud environment (cARMY). Write unit tests to ensure functionality and reliability of both back-end and front-end code. Create comprehensive solution documentation, including technical and user guides, system diagrams, data models, and integration strategies. Develop code in accordance with U.S. Government (USG) Information Assurance (IA) and Security (INFOSEC) standards, policies, and best practices. Ensure user accessibility by meeting Section 508 compliance requirements. Uphold high code quality standards and thoughtful application design for consistency across projects. Participate in regular Scrum events as part of an agile team. Collaborate across US time zones via Email, MS Teams, Slack, Zoom, Google Drive, Git repositories, Azure DevOps, and project documents. Bring a positive, solution-focused attitude and a willingness to present innovative ideas. Execute additional tasks as required.

Basic Qualifications:

BS Degree or equivalent experience. Minimum of 2+ years of hands-on software engineering experience. CompTIA Security+ certification (or willingness to acquire within the first month of employment). Proficiency in developing REST APIs using ASP.NET and working with container technologies. Strong understanding of data structures and experience with relational databases like Oracle and SQL Server. Proficiency with JavaScript frameworks (React, Vue.JS, Angular, etc.) and SPA concepts (client-side rendering, routing, application state, API integration, etc.). Experience with TypeScript, including its type system (interfaces, types, generics). Knowledge of responsive design principles and experience with UI frameworks (Bootstrap, Material Design, Tailwind, etc.). Experience in writing unit tests for both back-end and front-end using tools like Jest, NUnit, Moq, Fluent Assertions, etc. Proficient in Agile Software Development methodologies. Ability to work independently and collaboratively. Experience with git version control, cloud service providers, and understanding of DevSecOps and CI/CD pipelines. Strong history of working with software development team to assess, develop, test, and maintain systems and applications. Strong team collaboration skills, excellent communication abilities, and attention to detail.

Preferred Qualifications:

Azure certifications including Azure Fundamentals (AZ-900), Azure Administrator Associate (AZ-104), Azure Developer Associate (AZ-204), Azure Solutions Architect Expert (AZ-305). Experience in implementing automated DevSecOps pipelines and CI/CD technologies. Hands on experience with implementing different types of user authentication, user permissions, and role-based access control (RBAC). Familiarity with DOD cloud environments, especially cARMY. Experience with government (DOD and ARMY) development processes and requirements. 3+ years of hands-on software engineering experience. Proficiency in code analysis using tools like Fortify, Checkmarx, and SonarQube. Expertise in rewriting legacy applications and migrating applications to the cloud. Experience with DocuSign

Security Clearance Requirements:

US citizenship, active DoD Secret Clearance

Physical Requirements:

Must be able to remain in a stationary position 50%. Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer. The person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $84,900-$141,100. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, ManTech invests in it’s employees beyond just compensation. ManTech’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, Short Term and Long Term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access http://www.mantech.com/careers/Pages/careers.aspx as a result of your disability. To request an accommodation please click careers@mantech.com and provide your name and contact information.

Key Skills

• Backend
• Frontend
• TypeScript
• REST APIs
• ASP.NET