Software Engineer 4 (ETL)

• Type: Contract
• Job #3748

Title: Software Engineer 4 (ETL)
Location: Annapolis Junction, MD
Compensation Range: $210 -$230K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

SWE-4 Qualifications:
Master's degree in Computer Science or related discipline from an accredited college university, plus ten (10) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.
OR
Bachelor's degree in Computer Science or related discipline from an accredited college or university, plus twelve (12) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity
OR
Fourteen (14) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.

Position Description
The Software Engineer shall be responsible for the full lifecycle development, deployment, and operations and maintenance (O&M) of a mission-critical Extract, Transform, Load (ETL) system operating in a large-scale Linux environment. This role requires a strong foundation in backend development, Linux systems, and operational sustainment best practices.

Position Required Skills

• Experience with Linux system administration, CLI, and Bash scripting
• Recent software development experience using Python and Java
• Experience with end-to-end data handling, including parsing, integration, and distributed processing using Apache NiFi for real-time and batch data workflows
• Experience developing Messaging Frameworks such as ITX (ActiveMQ)
• Experience with CI/CD principles, methodologies, and tools including GitLab CI
• Experience with metrics and monitoring tools such as Prometheus and Grafana
• Experience with structured and semi-structured data formats, including JSON, XML, CSV, TCLD, ASDF, and Parquet, for data parsing and transformation tasks
• Experience with Git for source code management

Position Desired Skills

• Experience with the Atlassian suite of tools including Confluence and Jira
• Experience with Big Data streaming platforms including Spark
• Experience with containerization technologies such as Docker, PodMan, and containerd
• Experience deploying containerized services under Kubernetes or Docker Compose orchestration