Systems Engineer (TS/SCI Clearance with Full Scope Polygraph Required)

J&T Business Consulting; New York (NY); On-site; USD 175,000 - 210,000; Full time

Benefits offered by this job

Health, Dental, Vision

Life and Disability Insurance

Paid Time Off

401(k) with Company Match

Tuition Reimbursement

Job summary

J&T Business Consulting seeks a senior Systems Engineer (TS/SCI with Polygraph) to support a mission-critical initiative in Columbia, MD.

You will reverse engineer ~40 legacy databases, design a unified data model, and migrate data to a modern platform, enabling analysis, discovery, and secure data handling.

The role requires strong SQL, database design, and experience with Oracle/PostgreSQL, focusing on data integrity and security during migration.

Qualifications

• Bachelor’s degree in Computer Science, Systems Engineering, or related discipline with 20+ years of relevant experience, OR 25 years without a degree.
• Proven expertise in database design, data modeling, and schema normalization.
• Extensive SQL across Oracle and PostgreSQL.
• Experience reverse engineering complex software systems across front-end and back-end.
• Data analysis, cleansing, normalization, and data security governance.

Responsibilities

• Reverse engineer legacy systems across front-end and back-end architectures to map data structures and workflows.
• Design, architect, and develop unified database models to consolidate ~40 databases.
• Author and optimize SQL queries within Oracle and PostgreSQL environments.
• Perform data analysis, cleansing, normalization, and validation to ensure data integrity during migration.
• Implement robust data security practices throughout modeling, extraction, and migration phases.
• Support data visualization, presentation services, and prototyping for downstream analytics tools.

Skills

SQL

Data Modeling

Reverse Engineering

RDBMS

Security Governance

Education

Bachelor’s degree in CS / Systems Engineering or related, plus 20 years experience OR 25 years without degree

Tools

Oracle

PostgreSQL

Job description

Systems Engineer (TS/SCI Clearance with Full Scope Polygraph Required)

Columbia, United States | Posted on 10/28/2026

Clearance Requirement: Active TS/SCI with Polygraph

Salary Range: $175,000 – $210,000 / year (dependent on experience, education, and skill set)

About the Role

Seeking a senior Systems Engineer 3 to support a mission-critical initiative delivering advanced visualization and presentation services for analytic tool prototyping, development, and production in Columbia, MD.

In this role, you will collaborate within a small, high-impact team dedicated to reverse engineering approximately 40 legacy databases into a unified, universal data model. You will play a central role in enabling efficient data analysis, discovery, and search capabilities, driving the end-to-end migration of legacy business data to a modernized platform.

Key Responsibilities

Reverse engineer legacy systems across both front-end and back-end architectures to map existing data structures and workflows.

Design, architect, and develop unified database models to consolidate ~40 disparate databases into a single universal system.

Author and optimize complex SQL queries within relational database environments (e.g., Oracle, PostgreSQL).

Perform comprehensive data analysis, normalization, cleansing, and validation to ensure data integrity during migration.

Implement robust data security best practices throughout system modeling, extraction, and migration phases.

Support data visualization, presentation services, and prototyping for downstream analytic tools.

Required Qualifications & Experience

Security Clearance: Active TS/SCI with Polygraph.

Experience & Education:

Bachelor’s degree in Computer Science, Systems Engineering, or a related discipline plus at least 20 years of relevant professional experience, OR

25 years of relevant professional systems engineering/data architecture experience without a degree.

Database & Modeling: Proven expertise in database design, data modeling, and schema normalization.

SQL & RDBMS: Extensive hands‑on experience utilizing SQL across relational database management systems (e.g., Oracle, PostgreSQL).

Reverse Engineering: Demonstrated experience reverse engineering complex software systems across both front‑end interfaces and back‑end data layers.

Data Processing: Proven track record in data analysis, data cleansing, normalization, and data security governance.

Desired Qualifications

Advanced experience with Oracle database architectures.

Prior working knowledge of BM&A systems.

Benefits & Compensation

This position offers a comprehensive benefits package designed to support employees both personally and professionally:

Comprehensive Health, Dental, and Vision Insurance

Basic Life and Disability Insurance

Paid Time Off (PTO) and Paid Holidays

401(k) Retirement Plan with Company Match

Tuition Reimbursement for ongoing education and professional development

An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected under federal, state, or local law.