Data Engineer - Expert, TS​/SCI FSP

Job Overview

Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, Dev Sec Ops , and machine learning. The Senior Data Engineer will support the CIT program, designing and maintaining advanced data pipelines, providing technical leadership, and delivering reliable data solutions to enable teams to transform data into actionable insights at scale.

Full-time

• Build and maintain reliable data pipelines that support ingestion, transformation, and delivery of large datasets
• Partner with software developers and engineering teams to integrate data solutions into existing systems and applications
• Develop and optimize SQL queries to support data retrieval, transformation, and analysis
• Work with relational databases such as Postgre
  
  SQL, Oracle, and MySQL to store, manage, and access data
• Develop scripts and automation using Python, Linux, and shell scripting to support data processing tasks
• Operate within AWS environments to support cloud-based data infrastructure and workflows; prepare and structure data outputs in usable formats including JSON

• Active TS/SCI with Full Scope Polygraph clearance
• 12+ years of experience with a Master’s degree in Computer Science, Information Systems, Engineering, or equivalent specialized experience in a scientific or technical discipline
• 8+ years of experience developing or maintaining data pipelines in collaboration with development teams
• 4+ years of hands‑on experience with Python
• Experience working with AWS cloud services
• Familiarity with SPARC environments and relational databases including Postgre
  
  SQL, Oracle, or MySQL
• Demonstrated experience writing and maintaining SQL queries; 4+ years of experience working in Linux environments including shell scripting; experience preparing and managing structured and unstructured datasets including JSON formats

• Experience with workflow orchestration tools such as Apache NiFi or Apache Airflow
• 4+ years of development experience with Java or Scala
• Experience managing or supporting EMR or SPARC clusters; background in performance tuning and optimization of data pipelines or large data systems; 4+ years of experience working with Hive or Iceberg; familiarity with implementing cloud-based security practices; experience using ACM processes for code deployment

• Employee‑owned company with equity for every employee
• 100% company‑paid medical, dental, and vision premiums for you and all dependents
• Ability to increase salary if medical/dental/vision coverage is not required
• 100% company‑paid disability and life insurance benefits
• 15% 401(k) company contribution
• 30 days of PTO/holidays
• Paid paternal and maternal leave
• Generous training budget
• Business development / growth incentives
• Top‑notch company swag
• Salary range: $200,000‑$265,000

Millennial Software Solutions Inc. is an Equal Opportunity Employer and does not discriminate in employment on the basis of race, color, religion, sex, national origin, political affiliation, sexual orientation, gender identity, marital status, disability and genetic information, age, membership in an employee organization, or other non‑merit factor.