Senior DevOps Engineer

MANTECH seeks a motivated, career and customer-oriented Senior Dev Ops Engineer to join our team in Annapolis Junction, MD. Responsibilities Include But Are Not Limited To

• Manage source control workflows using Git, including branching and merging strategies.
• Build, maintain, and modify CI/CD release pipelines (using Jenkins or Bamboo) and build automation (using Maven or Gradle) across Dev, QA, Staging, and Production environments.
• Act as technical lead for an Agile team by participating in planning, grooming, demonstrations, and retrospectives, and bridging requirements across stakeholders, developers, and support teams.
• Perform system administration, monitoring, instrumentation, and performance tuning across enterprise Linux (RHEL, CentOS) and Windows environments to support system resiliency and high availability.
• Provision and configure application infrastructure and deployments using Ansible, Puppet, Chef, or Software Defined Networking (SDN).Configure and maintain caching and messaging middleware (Memcached, ActiveMQ, Redis) to support application throughput.
• Manage database deployment infrastructure (MySQL, PostgreSQL) and Elasticsearch environments (including Kibana).
• Set up containerized and serverless deployment environments utilizing Docker and Kubernetes (including RKE2).
• Apply security practices, networking protocols, firewalls, and government compliance standards (e.g., NIST, RMF, STIGs) across platform and PaaS environments.
• Troubleshoot complex issues by reading code logic, analyzing architecture, isolating defects, and automating manual operational processes.
• Develop, maintain, and review automation scripts using languages such as Python, Java, Go, Ruby, or Shell.

• Bachelor's degree in technical field with a minimum of ten (10) years of related systems, cloud, devops, or IT engineering experience.
• Experience managing and monitoring AWS cloud infrastructure and enterprise Linux environments (such as RHEL or CentOS).
• Experience building continuous integration and automated deployment pipelines using configuration management (e.g., Ansible, Puppet) and container orchestration tools (e.g., Docker, Kubernetes).
• Experience with Git version control and writing scripts or application code in at least one object-oriented or scripting language (e.g., Python, Java, Go, Ruby).
• Ability to read application logic to assist in technical troubleshooting and defect isolation across systems.
• Experience communicating across cross-functional teams, including developers, testers, and project managers.

• Experience with, or knowledge of the following:

• VMware, Rancher Kubernetes Engine (RKE2), and serverless deployments.

• Kafka, NiFi, and data flow lifecycle management.

• Jenkins, Bamboo, Maven, Gradle, and Shell scripting.

• PostgreSQL, MySQL, Elasticsearch, and Kibana.

• Ansible, Puppet, Chef, and Software Defined Networking (SDN).

• PCI compliance standards and firewall configurations.

• An active TS/SCI with Polygraph is required.

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Frequently communicates with co-workers, management, and customers, which may involve delivering technical presentations. Must be able to exchange accurate information in these situations.