Principal Cloud Software Engineer

Mantech seeks a motivated and customer-focused Principal Cloud Software Engineer to join our team in Denver, CO or Chantilly, VA. In this role, you will design, develop, and support cloud-based backend applications, ensuring secure and scalable solutions for mission-critical systems. Responsibilities include but are not limited to: Design, develop, and maintain production backend applications for the ServiceNow platform using Java Deploy and manage services in cloud environments, with an emphasis on AWS Analyze data, code, and system processes to identify and resolve technical issues Identify and implement best-practice solutions aligned with client needs Provide operational support for custom development and third-party integrations Conduct unit testing and troubleshoot code defects Support the creation of technical design documentation and architecture diagrams Minimum Qualifications: Bachelor’s degree or 4 additional years of software development experience in lieu of a degree 7 years of hands-on software development experience Proficiency in backend Java development Experience with at least one scripting language (e.g., Ruby, Python, Perl, Bash, JavaScript) Solid understanding of Linux operating systems (e.g., RHEL, CentOS, Debian) Possess a current DoD Approved 8570 IAT Level II Certification (e.g., Security CE) Preferred Qualifications: Experience with Infrastructure as Code (IaC) tools such as Terraform or CloudFormation Familiarity with microservices architecture and orchestration tools such as Kubernetes or ECS Experience with cryptographic protocols and PKI, including SSL and TLS certificate management Knowledge of secret and credential management tools like HashiCorp Vault Understanding of Access Control Policies and Role-Based Access Control (RBAC) Experience working with the ServiceNow platform Clearance Requirements: Must have a current/active TS/SCI with Polygraph Physical Requirements: The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.