Database Developer

ManTech; Herndon (AR); On-site; USD 142,000 - 236,000; Full time

Benefits offered by this job

Health Insurance

Life Insurance

Paid Time Off

Holiday Pay

Disability Insurance

Retirement and Savings

Learning and Development opportunities

Job summary

ManTech in Herndon, VA seeks a Database Developer to design, build, and optimize enterprise databases for data collection, storage, and analytics. You will work with analysts to translate requirements, write stored procedures, and optimize SQL for large data sets.

Requires a High School Diploma with 7+ years in database management, SQL, and PostgreSQL; Linux experience. TS/SCI with poly is required; JavaScript/Node.js/Python are preferred.

Qualifications

• High School Diploma and 7+ years of experience with Database Management, SQL, and PostgreSQL.
• Translate data collection requirements into implementable solutions.
• Analyze data sources for accuracy and apply logic to solutions.
• Experience working in a Linux environment.

Responsibilities

• Write, maintain, and debug stored procedures to ensure database performance.
• Work with analysts to craft operational and data requirements.
• Optimize SQL queries for large data volumes.
• Design tables with clear schemas, indexing, and partitioning.
• Analyze data sources for accuracy and data prioritization.
• Provide platform support and debug production issues.

Skills

Communication

Tools

SQL

PostgreSQL

Linux

JavaScript

Node.js

Python

Data Analytics Platforms

Job description

General information

• Requisition #: R70552
• Locations: USA-VA-Herndon
• Posting Date: 09/04/2026
• Security Clearance Required: TS/SCI w/ Poly
• Remote Type: Onsite
• Time Type: Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Database Developer to join our team in Herndon, VA. The Database Developer is responsible for making data available, accessible, and secure to all stakeholders. In this role, you will design, build, and optimize databases for data collection, storage, access, and analytics at enterprise scale.

Responsibilities include, but are not limited to:

• Write, maintain, and debug stored procedures to ensure optimal database performance
• Work with various analysts to craft clear operational and data requirements
• Optimize SQL queries run against terabytes of data for efficiency and speed
• Design database tables with clear schemas, appropriate indexing, and logical partitioning
• Analyze data sources for accuracy and data prioritization while applying appropriate logic to developed solutions
• Provide platform support, problem-solving, and debugging database production issues

Minimum Qualifications:

• High School Diploma and 7+ years of experience with Database Management, SQL, and PostgreSQL
• Experience taking data collection requirements and translating those requirements into implementable solutions
• Experience analyzing data sources for accuracy and applying appropriate logic to solutions
• Experience working in a Linux environment

Preferred Qualifications:

• Experience with JavaScript and Node.js
• Experience with Python
• Experience with enterprise-scale data analytics platforms and high-volume data architectures
• Strong communication skills to collaborate effectively with colleagues via multiple communication channels

Clearance Requirements: Active/current TS/SCI with polygraph is required

Physical Requirements: Must be able to remain in a stationary position 50% of the time

The projected compensation range for this position is $141,500.00-$236,000.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at [e-mail] and provide your name and contact information.