Full Stack Developer

MANTECH seeks a motivated, career-driven, and customer-oriented Full-Stack Developer to join our team as a remote team member.

The Mid-Level Full-Stack Developer will leverage their strong software engineering background and legacy migration expertise to design, develop, and modernize mission-critical federal applications in close collaboration with cross-functional technical teams.

Responsibilities include but are not limited to:

• Collaborate closely with cross-functional development teams to solve complex technical problems and design modernization solutions for legacy applications.

• Design, develop, test, and deploy robust full-stack software solutions across the entire Software Development Life Cycle (SDLC).

• Build and integrate responsive front-end user interfaces using HTML, CSS, and modern JavaScript.

• Engineer and maintain secure RESTful APIs and backend services using Java, Python, XML, and JSON.

• Configure, monitor, and maintain application servers and deployment environments including WebLogic and Apache Services.

• Manage version control repositories and streamline CI/CD automation pipelines using Git, GitLab CI, GitHub Actions, or Jenkins.

• Create and maintain clear technical artifacts, architecture diagrams, and system documentation using Microsoft Office Suite.

Minimum Qualifications:

• Possession of a Bachelor's degree in Computer Science, a related technical field, or equivalent practical experience (6 additional years of experience).

• 3 + years of professional full-stack software development experience across the complete SDLC.

• Demonstrated experience migrating and modernizing legacy software applications to modern architectures.

• Solid proficiency in Object-Oriented Programming (OOP) with Java and functional programming with Python.

• Hands-on experience developing front-end interfaces using HTML, CSS, and JavaScript, alongside API integrations utilizing JSON and XML.

• Demonstrated experience utilizing modern IDEs, Git-based version control, CI/CD pipelines, and ticketing platforms such as Jira or Asana.

Preferred Qualifications:

• Master’s degree in Computer Science, Software Engineering, or an Information Technology discipline.

• Industry-recognized certifications such as CompTIA Security+, Network+, Linux+, or relevant Java/Python certifications.

• Experience utilizing modern front-end frameworks (Vue.js, React, or Angular) and Python backend frameworks (Flask or FastAPI).

• Experience working with relational databases, writing complex SQL queries, and integrating Single Sign-On (SSO) solutions such as Okta.

Clearance Requirements:

• Must be a U.S. Citizen (no dual citizenship) with the ability to pass a background investigation and obtain and maintain DHS Suitability / Entry on Duty (EOD).

Physical Requirements:

• Must be able to remain in a stationary position 50% of the time.

• Needs to occasionally move about inside the workspace to access office equipment.

• Frequently communicates with co-workers, management, and stakeholders via email, phone, and virtual channels.

• Must be able to exchange accurate information in these situations.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at [email protected] and provide your name and contact information.