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MANTECH
ยท
July 11, 2026
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Junior Developer

Annapolis Junction, MD
Full-time
Onsite
$77K/yr - $128K/yr
Entry Level
MANTECH is a company at the forefront of national security, providing advanced solutions to government intelligence agencies. They are seeking a motivated Junior Developer to join their team, focusing on writing efficient code and collaborating on web applications and backend services.
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Responsibilities

  • Writing clean, maintainable, and efficient code using Python for backend services, web application logic, and developing/maintaining RESTful APIs
  • Collaborating with senior developers to design, implement, and optimize software using Git version control practices, while participating in daily standups
  • Implementing unit tests using frameworks like pytest and conducting code reviews to ensure application quality, performance, and smooth troubleshooting
  • Supporting front-end development by building responsive web interfaces and components using HTML, CSS, JavaScript, React.js, and TypeScript
  • Writing and optimizing SQL queries and designing schemas for relational databases such as PostgreSQL, MySQL, or SQLite to support backend functionality
  • Containerizing applications using Docker and managing application images consistently across development, testing, and production environments
  • Utilizing Ansible for automating deployment, configuration management, and performing basic Linux system administration and server troubleshooting tasks

Qualification

Required

  • Bachelor's degree in an IT related field and 1+ years of relevant experience in software development, including internships, academic projects, or professional environments
  • Proficiency in Python development for writing scripts, backend applications, and developing or consuming RESTful APIs
  • Experience with Git version control systems for source control management and collaborative team workflows
  • Knowledge of SQL and experience working with relational databases such as PostgreSQL, MySQL, or SQLite
  • Understanding of core web technologies including HTML5, CSS3, and JavaScript to build functional web pages and components
  • Strong problem-solving, communication, and time management skills to effectively prioritize tasks and collaborate within an agile team
  • An active TS/SCI with Polygraph is required to start

Preferred

  • Experience building components and managing state with React.js, and familiarity with TypeScript
  • Experience containerizing applications with Docker and managing multi-container setups using Docker Compose
  • Exposure to automated configuration management using Ansible and basic Linux system administration or deployment troubleshooting
  • Familiarity with CI/CD pipelines, GitLab CI, and writing unit tests with frameworks like pytest or Jest
  • Basic understanding of cloud services (AWS, Azure, or GCP) and modern web frameworks like Vue.js, Angular, or Node.js

Benefits

  • Health Insurance
  • Life Insurance
  • Paid Time Off
  • Holiday Pay
  • Short-term and long-term Disability
  • Retirement and Savings
  • Learning and Development opportunities
  • Wellness programs
  • Other optional benefit elections
MANTECH is a technology company that offers cyber, IT, and data analytics technologies and solutions for security programs.
Glassdoor
4.0
Founded in 1968
Herndon, Virginia, USA
5001-10000 employees
https://www.mantech.com