Full Stack Developer

MANTECH; United States; Remote; USD 100,000 - 150,000; Full time

Benefits offered by this job

Health and life insurance

Paid time off and holidays

Disability coverage

Retirement savings

Learning and wellness programs

Job summary

ManTech seeks a skilled Full-Stack Developer to build and modernize applications used in federal mission settings. You will work across the software lifecycle to migrate legacy systems toward modern architectures and support secure, reliable deployments.

Requirements include a BS in computer science (or equivalent experience), at least three years of full‑stack development, proficiency in Java and Python, HTML/CSS/JavaScript, JSON/XML, Git, CI/CD, and the ability to obtain a Public Trust

Qualifications

• Bachelor’s degree in computer science or related field or equivalent experience

Responsibilities

• Collaborate with developers to assess legacy apps and plan modernization
• Design, build, test, and deploy full stack features across the SDLC
• Create responsive UI with HTML/CSS/JS and develop backend services and REST APIs
• Configure and maintain application servers and deployment environments
• Manage source code and support automated build and release pipelines
• Maintain technical documentation and architecture diagrams

Skills

Java

Python

HTML/CSS/JS

REST APIs

Git/CI-CD

Backend/Frontend

Education

Bachelor’s degree in CS or related field

Equivalent practical experience (6 additional years)

Tools

Git

CI/CD

Job description

Role overview

Build and modernize full stack applications used in federal mission settings. You’ll work across the software development lifecycle with technical teams, bringing legacy systems toward modern architectures while supporting secure, reliable deployments.

Responsibilities

• Collaborate with developers to assess legacy applications and plan modernization work.


• Design, build, test, and deploy full stack features throughout the software development lifecycle.


• Create responsive interfaces with HTML, CSS, and JavaScript, and develop backend services and REST APIs.


• Configure and maintain application servers and deployment environments.


• Manage source code and support automated build and release pipelines.


• Maintain technical documentation, architecture diagrams, and other delivery artifacts.

Requirements

• Bachelor’s degree in computer science or a related field, or equivalent practical experience (six additional years).


• At least three years of professional full stack development experience across the software development lifecycle.


• Experience migrating and modernizing legacy software.


• Proficiency with object-oriented Java and Python, plus HTML, CSS, JavaScript, JSON, and XML.


• Experience with Git-based version control, CI/CD pipelines, modern IDEs, and a ticketing platform.


• U.S. citizenship without dual citizenship and ability to pass a background investigation for a Public Trust suitability determination.

Nice to have

• A master’s degree, relevant industry certifications, experience with React, Vue, or Angular and Flask or FastAPI, and familiarity with relational databases, complex SQL, or SSO integrations.

Benefits and work setup

• Full-time, fully remote role.


• Benefits may include health and life insurance, paid time off and holidays, disability coverage, retirement savings, and learning and wellness programs.