Java Software Engineer (Top Secret)
20171, Virginia
Experience: 0
Category: Information Technology
Contractor Work Model: Remote
Brand: System One
Compensation Range: 175000.00 - 200000.00
Job ID: 376835
Date Posted: 07/15/2026
Shortcut: http://jobs.systemone.com/p0wSTe
Java Software Developer
Top Secret Clearance required
Security+ certification is highly desired
Direct Hire
100% Remote
The specific platform knowledge (currently MuleSoft) can be learned. What cannot easily be taught is the engineering mindset and the ability to build high-quality software.
While it is desirable for candidates to already possess Security+ certification and an active Top Secret clearance; our primary focus is on identifying exceptional software developers.
What We're Looking For:
We are looking for someone who has consistently demonstrated excellence as a software developer—someone whose peers and leaders recognize them for delivering high-quality work.
The ideal candidate has an engineering temperament: the ability to understand complex systems, reduce complexity through thoughtful design, and express that clarity through well-crafted code and architecture.
They should possess a builder's mindset—a belief that they can create solutions to difficult problems, a desire to build things well, and the initiative to improve systems without waiting to be asked.
We value developers who thrive in collaborative environments, enjoy challenging one another to improve, and are committed to delivering results. We are looking for someone who takes ownership, contributes beyond the minimum expectations, and is invested in the success of the team.
Technical Background:
No specific programming language or platform is more important than demonstrated engineering capability. However, experience in the following areas would reduce the learning curve:
• Java
• Linux
• Networking
• MuleSoft (preferred, but not a primary hiring criterion)
• MuleSoft experience is a plus, but we are intentionally hiring for software engineering talent rather than platform specialization. A great developer can learn MuleSoft; the reverse is not always true.
Experience:
• We want to see evidence of candidates building meaningful software components or systems and consistently going above and beyond in their projects.
• A senior engineer with broad or deep experience would be an excellent fit, but seniority alone is not the deciding factor. A junior developer who demonstrates exceptional aptitude, initiative, and the potential to grow into a highly capable senior engineer is equally compelling.
• Finally, candidates who bring unexpected strengths—whether in systems engineering, performance optimization, security, infrastructure, automation, or another technical discipline—are especially attractive. We value people who can surprise us with capabilities that make the entire team stronger.
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
#M1
#LI-VH1
Ref: #851-Rockville-S1
-
C/C++ Software Developer
Bossier City, Louisiana
Job Title: C/C++ Software Developer Location: Bossier City, LA Onsite – onsite Security Clearance: Active secret clearance OR previously held secret clearance preferred, must have ability to obtain interim clearance Responsibilities Collaborate with cr...
Date Posted: 06/10/2026 Recommended
-
Senior Project Engineer
Baton Rouge, Louisiana
Job Title: Senior Project Engineer Location: Baton Rouge, Louisiana Type: Direct Hire Compensation: $120,000.00 to $125,000.00 + Bonus Contractor 90/80 Schedule Core Responsibilities Technical Specifications: Determine requirements and select specializ...
Date Posted: 05/05/2026 Recommended
-
ServiceNow Developer
Miramar, FL
Job Title: ServiceNow Developer Location: Miramar, FL Type: Direct Hire Compensation: Work Model: Hybrid – onsite and remote Hours: 40.0 Security Clearance: Responsibilities Own the development of the enterprise platform ecosystem using ServiceNow to s...
Date Posted: 06/17/2026 Recommended
-
Lead Full-Stack Developer
McLean, VA
Lead Full-Stack Developer Remote This role supports a federal client and requires the ability to obtain a public trust clearance. No sponsorship is available. We are seeking a Lead Full-Stack Developer to support a major federal modernization initiativ...
Date Posted: 06/22/2026 Recommended
-
Business Application Developer
Tampa, FL
Job Title: Business Application Developer Location: Tampa, FL Type: Direct Hire Security Clearance: Must Be Able to Obtain a DoD Secret Security Clearance Job Summary: System One is seeking a Business Application Developer for a full-time/permanent opp...
Date Posted: 04/27/2026 Recommended
-
Electrical Engineer
Cypress, TX
Job Title: Electrical Engineer Location: Houston, Texas Type: Direct Hire Compensation: $130,000 - $170,000 Contractor Work Model: Hybrid Hours: Monday - Friday, 8-5 Company Overview A growing engineering and consulting firm is expanding their presence...
Date Posted: 06/01/2026 Recommended
-
Sr. Engineer - TS Clearance
Bedford, Massachusetts
Job Title: Sr. Engineer Location: Hanscom AFB Type: Contract To Hire Compensation: Negotiable Contractor Work Model: Onsite – Hours: 40.0 Security Clearance: TS/SCI Responsibilities Apply engineering theories, principles, concepts, standards, and metho...
Date Posted: 05/05/2026 Recommended
-
Lead Kafka Developer
Pittsburgh, PA
Job Title: Lead Kafka Developer – Software Engineer Lead Location: Pittsburgh, PA Type: Contract Compensation: Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Responsibilities Design and develop Kafka-based streaming architecture...
Date Posted: 05/11/2026 Recommended
-
Sr. Controls Engineer
Morgantown, West Virginia
Job Title: Sr. Controls Engineer Location: Morgantown, WV Type: Direct Hire Compensation: Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Responsibilities Develop the control architecture to ensure the facility is collecting the data and in...
Date Posted: 07/02/2026 Recommended
-
Mechanical Engineer III
Perry, OH
Job Title: Mechanical Engineer III Location: Perry, OH Type: Contract Compensation: $52.00 - DOE Contractor Work Model: Onsite – onsite Hours: 40 hours/week Security Clearance: Must be a US Citizen due to Nuclear restrictions Overview System One is e a...
Date Posted: 06/22/2026 Recommended
-
Mechanical Engineer (mid-level)
Oak Harbor, OH
Job Title: Mechanical Engineer (mid-level) Location: Oak Harbor, OH Type: Contract Compensation: $52.00 - DOE Contractor Work Model: Onsite – onsite Hours: 40 hours/week Security Clearance: Must be a US Citizen due to Nuclear restrictions Overview Syst...
Date Posted: 07/24/2026 Recommended
-
Mechanical Engineer (mid-level)
Hookstown, PA
Job Title: Mechanical Engineer (mid-level) Location: Hookstown, PA Type: Contract Compensation: $52.00 - DOE Contractor Work Model: Onsite – onsite Hours: 40 hours/week Security Clearance: Must be a US Citizen due to Nuclear restrictions Overview Syste...
Date Posted: 07/24/2026 Recommended
-
Python Full Stack Developer (TS/SCI clearance)
Suitland, Maryland
Python Full Stack Developer Suitland, MD – 2-3 days/week onsite TS/SCI clearance is required Stack: Python/Django, React/Next.js, PostgreSQL/Aurora, AWS (multi-partition), Terraform, GitLab CI/CD, Keycloak We are standing up a small, elite development ...
Date Posted: 07/20/2026 Recommended
-
Engineering Technician (Production)
Sterling, Virginia
Job Title: Engineering Technician (Production) Location: Sterling, Virginia Type: Contract ( 2 plus years ) Compensation: $35.00 - 40.87/hr Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Eligibility to obtain a U.S. Government s...
Date Posted: 05/28/2026 Recommended
-
.NET Mainframe Developer
Vienna , VA
Job Title: .NET Developer Location: Remote Type: Contract Contractor Work Model: Remote Responsibilities Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distribut...
Date Posted: 05/06/2026 Recommended
-
I&C Engineer
Houston, TX
Job Title: I&C Engineer Location: Houston Type: Contract Compensation: $58.00 (DOE) Contractor Work Model: Onsite – onsite Hours: 40 hours/week Security Clearance: System One is seeking an I&C Engineer to work in Houston, TX. The Control Engineer is to...
Date Posted: 06/03/2026 Recommended
-
Mechanical Design Engineer / Missile systems components
Grand Praire, Texas
Mechanical Design Engineer 12 Month contract Onsite Grand Prairie, TX Pay: $60-$70 per hour Clearance: Secret Clearance required Join a mission-critical Air Dominance production program where your engineering expertise directly contributes to the devel...
Date Posted: 05/13/2026 Recommended
-
Production Worker
Colonial Heights, VA
Job Title: Production Worker Location: Colonial Heights, VA Overview The Production Worker is responsible for operating and monitoring manufacturing equipment, inspecting products to ensure quality standards, and maintaining a safe and efficient work e...
Date Posted: 04/29/2026 Recommended
-
Design Manager
Charlotte, North Carolina
Job Title: Design Manager Location: Charlotte, North Carolina Type: Direct Hire Compensation: $120,000.00 - $153,000.00 Work Model: Onsite Overview The IS Design Manager is responsible for the design production throughout the life cycle of a project fr...
Date Posted: 07/21/2026 Recommended
-
I&C Engineer III
Perry, OH
Job Title: I&C Engineer Location: Perry, OH United States Type: Contract Hire Compensation: $50/hr plus or minus depending on experience Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Must be a US Citizen due to Nuclear restrict...
Date Posted: 07/08/2026 Recommended
-
I&C Engineer III
Oak Harbor, OH
Job Title: I&C Engineer Location: Oak Harbor, OH United States Type: Contract Hire Compensation: $50/hr plus or minus depending on experience Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Must be a US Citizen due to Nuclear res...
Date Posted: 07/21/2026 Recommended
-
I&C Engineer III
Shippingport, PA
Job Title: I&C Engineer Location: Shippingport, PA United States Type: Contract Hire Compensation: $50/hr plus or minus depending on experience Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Must be a US Citizen due to Nuclear r...
Date Posted: 07/16/2026 Recommended
-
Sr. Maritime Electrical Manager
North Kingstown, Rhode Island
Job Title: Sr. Maritime Electrical Manager Location: North Kingstown, Rhode Island Type: Direct Hire Compensation: (none provided) Contractor Work Model: Onsite – onsite Responsibilities Lead the electrical engineering team in the design, integration, ...
Date Posted: 05/12/2026 Recommended
-
Design Manager
Coppell, TX
Job Title: Design Manager Location: Coppell, TX Type: Direct Hire Compensation: $120,000.00 - $153,000.00 Work Model: Onsite Overview The IS Design Manager is responsible for the design production throughout the life cycle of a project from development...
Date Posted: 07/21/2026 Recommended
-
Design Manager
Tempe, AZ
Job Title: Design Manager Location: Tempe, AZ Type: Direct Hire Compensation: $120,000.00 - $153,000.00 Work Model: Onsite Overview The IS Design Manager is responsible for the design production throughout the life cycle of a project from development h...
Date Posted: 07/21/2026 Recommended
-
Forgerock Developer
Salt Lake City, Utah
Job Title: Forgerock Developer Location: Salt Lake City, Utah Type: Contract To Hire Contractor Work Model: Onsite Hours: 40.0 Responsibilities Provide support and maintenance of various systems at the client site in Salt Lake City, UT. Be responsible ...
Date Posted: 06/04/2026 Recommended
-
Principal Civil / Structural Engineer
Charlotte, NC
Job Title: Principal Civil / Structural Engineer Location: Charlotte, NC 28208 Type: Direct hire Compensation: $165,000 - $210,000/yr. Salary will be commensurate with experience. Work Model: On-Site Hours: 40 hours/weekly minimum Security Clearance: N...
Date Posted: 07/13/2026 Recommended
-
Process Design Engineer - Vapor
Tulsa, OK
Job Title: Process Design Engineer Location: Tulsa, OK Work Model: Onsite Hours: Onsite 5 days M-F 8am-5pm Responsibilities Size and specify equipment such as pumps, blowers, compressors, pressure relief valves, and heat exchangers Develop P&ID’s, data...
Date Posted: 06/29/2026 Recommended
-
Design Manager
Salt Lake City, UT
Job Title: Design Manager Location: Salt Lake City, UT Type: Direct Hire Compensation: $120,000.00 - $153,000.00 Work Model: Onsite Overview The IS Design Manager is responsible for the design production throughout the life cycle of a project from deve...
Date Posted: 07/21/2026 Recommended
-
Design Manager
Glenolden, Pennsylvania
Job Title: Design Manager Location: Glenolden, Pennsylvania Type: Direct Hire Compensation: $120,000.00 - $153,000.00 Work Model: Onsite Overview The IS Design Manager is responsible for the design production throughout the life cycle of a project from...
Date Posted: 07/21/2026 Recommended