Software Engineer - ENG04 - Cleared On-Site

Apex Systems; Sterling (VA); On-site; USD 100,000 - 130,000; Full time

Job summary

Apex Systems is seeking a Senior Database Developer to design and maintain advanced databases using AWS Aurora PostgreSQL in Sterling, VA. The role requires proven expertise, including security clearance, to ensure secure and high-performing data access for complex systems. Join a collaborative team dedicated to innovative solutions in a dynamic environment.

Benefits

401K

Medical benefits

Weekly pay

Direct deposit

Qualifications

• 5+ years of experience in Database Administration required.
• Proficiency in RDBMS, particularly Oracle and PostgreSQL.
• Active TS/SCI clearance required.

Responsibilities

• Design and maintain AWS Aurora PostgreSQL databases.
• Optimize PostGIS schemas and geo-temporal queries.
• Ensure complex security protocols for data management.

Skills

Database Administration

RDBMS

SQL Scripting

Query Optimization

Data Security

Education

CompTIA Security+ certification

Job description

Software Engineer - ENG04 - Cleared On-Site

Apex Systems is a world class technology services business that incorporates industry or insights and experience to deliver solutions that fulfill our clients’ digital visions.

Apex has an opportunity for a Senior Database Developer . For applicants who are interested in this opportunity, send your updated resume to Mike Konjoian, Account Manager, at [email protected].

Here are the details:

Position: Senior Database Developer

Location: Sterling Virginia OR State College Pennsylvania (On-site)

Project Duration: 12 months w/ possibility of extension or conversion

Rate: Negotiable Based on Experience

**Security Clearance: Active TS/SCI required**

About the Role

We are seeking a highly skilled Senior Database Developer to join our team. In this role, you will design, develop, and maintain advanced relational databases, with a focus on AWS Aurora PostgreSQL and PostGIS. You’ll play a critical role in ensuring secure, high-performance data access and integration across complex systems.

Key Responsibilities

• Design, develop, and maintain relational databases using AWS Aurora PostgreSQL
• Create and optimize PostGIS-enabled schemas and geo-temporal queries for high-speed data retrieval
• Define and implement complex security protocols for data filtering and redaction
• Translate data models into normalized, relational schemas aligned with application needs
• Collaborate with developers to integrate and optimize database access via JPA/Hibernate
• Tune performance through advanced indexing, partitioning, and query optimization
• Manage database environments, including schema version control and migration support
• Establish secure, scalable structures to support evolving development needs

Required Qualifications

• Minimum 5 years of experience in Database Administration
• Proficiency in RDBMS (e.g., Oracle, PostgreSQL, MySQL) and SQL scripting
• Active TS/SCI clearance (U.S. citizenship required)
• CompTIA Security+ certification

Preferred Qualifications

• Experience designing and migrating database schemas
• Expertise in AWS Aurora PostgreSQL setup and optimization
• Strong background in relational data modeling and schema versioning
• Knowledge of Row-Level Security (RLS), session/permissions management, and column/cell-level security
• Advanced skills in query optimization, indexing, and partitioning
• Proficiency with PostGIS and optimizing geo-temporal queries
• Experience with Java Persistence (JPA) and Hibernate integration
• Ability to manage operational databases under active development
• Familiarity with DevOps practices, CI/CD, and source control systems (e.g., Git, Bitbucket)
• Experience supporting classified or government systems with strict security requirements
• Background in Java-based ecosystems and microservice architecture

Additional Benefits:

For this opportunity, you will also be eligible for benefits through Apex for the contract period, 401K, medical/health benefits options, a W2 hourly rate, weekly pay, and direct deposit.

EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at [email protected] or 844-463-6178.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.

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