DevOps Engineer

Expression•Fort Meade, MD

3d•Onsite

About The Position

Expression is seeking a DevOps Engineer with experience in Database Administration. This role is responsible for ensuring the reliability, performance, security, and automation of mission-critical systems supporting national security environments. This role blends traditional database administration with modern DevOps practices, enabling continuous delivery, infrastructure automation, and resilient system operations. The ideal candidate has deep expertise in database administration (PostgreSQL, MongoDB, and Oracle), combined with strong DevOps engineering capabilities across CI/CD, infrastructure as code, and cloud or hybrid environments.

Requirements

Bachelor’s degree in Project Management, Engineering, Computer Science, Information Systems, or related field.
7+ years of experience in DevOps, Site Reliability Engineering, or Database Administration roles.
Hands-on experience with PostgreSQL and MongoDB (Oracle experience a plus)
Experience with scripting and automation (Python, Bash, or similar)
Experience with CI/CD tools (e.g., Jenkins, GitLab CI/CD, GitHub Actions)
Familiarity with containerization (Docker) and orchestration (Kubernetes preferred)
Experience with monitoring tools and log analysis
Experience working in DoD or government environments
Strong understanding of DevOps principles including automation, CI/CD, and infrastructure as code
Deep knowledge of database administration and performance tuning
Ability to operate in secure, regulated environments with strict compliance requirements
Strong troubleshooting and problem-solving skills in complex distributed systems
Effective communication and collaboration across technical teams
Security+ certification (required and maintained with continuing education credits)

Nice To Haves

Oracle experience
Kubernetes
Relevant cloud or DevOps certifications

Responsibilities

Design, implement, and maintain CI/CD pipelines for database and application deployments
Automate infrastructure provisioning and configuration using Infrastructure as Code (IaC) tools
Build and maintain deployment workflows for applications, ETL pipelines, and database changes
Implement monitoring, alerting, and logging solutions for proactive system management
Improve system reliability through automation, scripting, and continuous improvement practices
Administer and maintain PostgreSQL, MongoDB, and Oracle databases
Install, configure, patch, and upgrade database systems
Manage database security including access controls, encryption, auditing, and compliance with DoD STIGs
Monitor database performance (CPU, memory, I/O, tablespaces) and perform tuning and optimization
Ensure data integrity and availability through backup, recovery, and restore testing procedures
Perform ad hoc data exports and support data access requests
Develop and maintain database documentation including System Security Plans (SSPs) and backup procedures
Deploy, run, monitor, and troubleshoot ETL pipelines across multiple systems
Collaborate with developers to resolve data pipeline issues and optimize performance
Support data integrations.
Ensure reliable data movement between systems including cross-domain (High-to-Low) environments
Implement and maintain compliance with DISA STIGs and DoD security requirements
Support cross-domain solutions and processes (e.g., High-to-Low data transfers)
Participate in security audits, vulnerability remediation, and patch management
Maintain audit logs and enforce data governance policies
Deploy approved software and applications across environments
Manage software licensing and system updates
Perform environment health checks and daily system monitoring
Support continuity of operations (COOP) activities and annual exercises
Troubleshoot and resolve Tier 3 production issues
Support mission-critical applications.
Collaborate with system administrators, network, security, and VDI teams to resolve complex issues
Participate in Change Advisory Board (CAB) and security meetings
Work closely with engineering, security, and operations teams to improve system performance and reliability
Identify opportunities to modernize legacy systems and reduce manual processes
Contribute to documentation, runbooks, and operational best practices