Title: Senior Software Engineer/Systems Engineer
Location: Annapolis Junction
Compensation Range: $215 – 235k
*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 *

Description:
The Senior Software Engineer / System Engineer plays a key role in a multi‑year, mission‑focused software development effort aimed at productizing a critical solution suite for broader DoD deployment. This position requires extensive experience in modern software engineering, system design, cryptographic technologies, and Agile development. The engineer will be responsible for leading technical changes, removing customer‑specific dependencies, abstracting environment‑specific configurations, and helping architect flexible interfaces to support authorization workflows and key management operations across diverse environments. The work impacts numerous components including clients, Portals, Proxy services, and OpenBao‑based key management services. This role requires strong leadership, independent execution, and collaboration across matrixed and virtual teams.

Required Skills:

Preferred Skills:

Desired Skills:

Title: Senior Software Developer
Location: Annapolis Junction
Compensation Range: $200 – 220k
*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 *

Description:
The Senior Software Developer supports mission‑critical programs within secure environments and delivers technical solutions across enterprise‑level systems. This role requires deep proficiency in Java, JavaScript, RESTful services, encryption technologies, AWS, and modern development methodologies. The developer will operate independently while collaborating across project teams to design, build, implement, and troubleshoot software solutions. The position demands strong communication skills, analytical thinking, and the ability to perform in a fast‑paced Agile setting while ensuring high‑quality results and adherence to best practices.
Required Skills:

Preferred Skills:

Additional Desired Skills or Familiarization:
An experienced consulting professional with broad understanding of solution design, industry best practices, and multi‑domain technology implementation. Operates independently to deliver quality work products and applies Oracle methodology, company procedures, and leading practices to customer engagements. Demonstrates the ability to provide functional and technical expertise and to consult effectively with customer management teams.
 

Title: Field Support Specialist
Location: Annapolis Junction
Compensation Range: $130 – 150k
*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 *

Description:
We are seeking a skilled and detail-oriented Field Support Specialist to join our team. The ideal candidate will have strong experience with providing hands-on support for Oracle hardware with Solaris and Linux Operating Systems. 

Qualifications:

Key Responsibilities:

Title: Senio Database Developer (Web Technologies & Data Migration)
Location: Annapolis Junction
Compensation Range: $200 – 220k
*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 *

Description:
Seeking a skilled Database Developer with strong expertise in Oracle PL/SQL, REST APIs, and front-end web technologies, including HTML, CSS, and JavaScript. The ideal candidate will have hands-on experience with data migration projects and a proven ability to design, develop, and optimize database-driven applications.

Qualifications:

Key Responsibilities:

Required Skills:

Desired Skills:

Title: Senior Database Engineer
Location: Annapolis Junction
Compensation Range: $165 – 185k
*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 *

Description:
The Database Engineer (DE3) provides advanced technical expertise in database design, development, implementation, and long‑term maintenance within a mission‑critical environment. This role supports the full data lifecycle, including information storage and retrieval, data flow, schema development, performance tuning, and cloud‑aligned data operations. The engineer will develop both relational and object‑oriented databases, build database parser/loading software, and create scripts, queries, and macros to transform data into usable structures. The DE3 is responsible for ensuring that database architectures align with overall system design, balancing constraints such as data volume, user concurrency, logical/physical distribution, response times, retention rules, and security controls.

Qualifications:

Required Skills:

Core Responsibilites:

Title: Senior Linux System Administrator/System Engineer
Location: Annapolis Junction
Compensation Range: $190 – 210k
*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 *

Description:
The Sr. System Administrator / System Engineer supports a high‑visibility, mission‑critical environment by providing expert‑level administration, engineering, and sustainment of Linux‑based systems across secure facilities. This role requires deep technical proficiency in CentOS/RHEL environments, enterprise middleware (JBoss/Wildfly), virtualization, automation, and secure system operations. The engineer will collaborate across mission teams, and provide support to maintain system reliability, availability, and compliance. The position demands a strong independent work ethic, adaptability, and broad familiarity with modern infrastructure components including storage, networking, security, and scripting.

Required Skills:

Desired Skills:

Additional Desired Skills or Familiarization:

Title: Senior Oracle Database Administrator
Location: Annapolis Junction
Compensation Range: $190 – 210k
*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 *

Description:
The Sr. Oracle Database Administrator / Engineer supports a high‑visibility mission environment by providing expert‑level database administration, engineering, and operational sustainment for enterprise‑scale Oracle database systems. This role involves managing large, complex Oracle environments, executing database design and modeling activities, and ensuring system reliability, performance, and availability. The administrator works across multiple secure locations—including Oracle SCIF spaces—and may support evening and weekend operations as needed. This position requires strong independence, excellent communication skills, and the ability to interpret customer requirements and translate them into effective database solutions.

Required Skills: