Back End Developer

General information Requisition # R67270 Locations USA-VA-Springfield Posting Date 04/22/2026 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time Description & Requirements Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH! MANTECH seeks a motivated, career and customer-oriented Back-End Developer to join our team in Springfield, VA. The Back-End Developer will lead the design, implementation, and maintenance of server-side logic, APIs, and system integration for technical applications. You will help ensure back-end components meet technical requirements and security standards while supporting overall mission objectives. Responsibilities include but are not limited to: Designing, developing, and maintaining server-side applications and APIs. Building and managing databases while ensuring data integrity and security. Integrating with authentication systems and security frameworks to meet all requirements. Writing clean, efficient, and well-documented code for systems and interfaces. Implementing security controls and maintaining a robust library of technical documentation. Collaborating with developers and stakeholders to ensure seamless system integration. Providing technical leadership and mentoring to junior developers to drive the technical agenda.

Minimum Qualifications:

Bachelor's degree in Computer Science or related field with 8+ years of experience in back-end development. Expertise in back-end programming languages such as Python, Java, C#, Ruby, or Node.js. Strong understanding of SQL and NoSQL database technologies and optimization techniques. Experience with API design and development, including REST or GraphQL. Proficiency with cloud platforms and containerization technologies like Docker and Kubernetes. Knowledge of server-side frameworks and security best practices for classified environments. Knowledge of database design and optimization techniques Experience with authentication and authorization systems

Preferred Qualifications:

Experience working with classified systems and meeting complex security requirements. Expertise in designing microservices architectures and using message brokers like Kafka. Proficiency with Infrastructure as Code (IaC) tools such as Terraform or Ansible. Experience with serverless computing and high-performance data processing.

Clearance Requirements:

An active TS/SCI with the ability to obtain and maintain a polygraph.

Physical Requirements:

The person in this position must be able to remain in a stationary position 50% of the time. You will need to occasionally move about inside the office to access file cabinets and office machinery. You must be able to exchange accurate information when frequently communicating with co-workers and management. MANTECH 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 careers@mantech.com and provide your name and contact information.