... Engineers Locations: Maryland and Utah Clearance Required: Active TS/SCI with Polygraph Citizenship: U.S. Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking ...

60 Open Systems Technologies Quantitative Developer Jobs Hiring Near You
... Engineers Locations: Maryland and Utah Clearance Required: Active TS/SCI with Polygraph Citizenship: U.S. Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking ...
Software Integration Engineer
Annapolis Junction, MD · On-site
$106K - $143K/yr
Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking Software Integration Engineers to support a mission-focused Site Reliability Engineering (SRE) team.
Software Integration Engineer
Annapolis Junction, MD · On-site
$106K - $143K/yr
Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking Software Integration Engineers to support a mission-focused Site Reliability Engineering (SRE) team.
Software Integration Engineer
Annapolis Junction, MD · On-site
$106K - $143K/yr
Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking Software Integration Engineers to support a mission-focused Site Reliability Engineering (SRE) team.
Software Integration Engineer
Annapolis Junction, MD · On-site
$106K - $143K/yr
Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking Software Integration Engineers to support a mission-focused Site Reliability Engineering (SRE) team.
... Engineers Locations: Maryland and Utah Clearance Required: Active TS/SCI with Polygraph Citizenship: U.S. Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking ...
... Engineers Locations: Maryland and Utah Clearance Required: Active TS/SCI with Polygraph Citizenship: U.S. Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking ...
Information Systems Security Engineer (ISSE) with Security Clearance
Annapolis Junction, MD · On-site
DoD 8570/8140 IASAE Level II Compliant Certification Required Position Overview Open Systems Technologies Corporation (OST) is seeking Information System Security Engineers (ISSEs) to support mission ...
Information Systems Security Engineer (ISSE) with Security Clearance
Annapolis Junction, MD · On-site
DoD 8570/8140 IASAE Level II Compliant Certification Required Position Overview Open Systems Technologies Corporation (OST) is seeking Information System Security Engineers (ISSEs) to support mission ...
Senior Information System Security Engineer with Security Clearance
Washington, DC · On-site
$120K - $163K/yr
ISSE, Cyber Security Open Systems Technologies Corporation is seeking a Senior Information System Security Engineer to provide support for the FBI. Information System Security Engineer (ISSE ...
New
Senior Information System Security Engineer with Security Clearance
Washington, DC · On-site
$120K - $163K/yr
ISSE, Cyber Security Open Systems Technologies Corporation is seeking a Senior Information System Security Engineer to provide support for the FBI. Information System Security Engineer (ISSE ...
New
Python, Java Open Systems Technologies Corporation is seeking a Full Stack Software Engineer to work on a large IT project supporting the intelligence community. The ideal candidate is a hands-on ...
Python, Java Open Systems Technologies Corporation is seeking a Full Stack Software Engineer to work on a large IT project supporting the intelligence community. The ideal candidate is a hands-on ...
Software Engineer Open Systems Technologies Corporation - Annapolis Junction, MD, United States Tagged: Software Engineer, Engineering, TS/SCI with Poly (MPO) Open Systems Technologies Corporation is ...
Software Engineer Open Systems Technologies Corporation - Annapolis Junction, MD, United States Tagged: Software Engineer, Engineering, TS/SCI with Poly (MPO) Open Systems Technologies Corporation is ...
Python Developer
Manhattan, NY · On-site
$150K - $250K/yr
Familiar with quantitative finance and electronic trading concepts and financial data * Equities ... orchestration technologies * Experience building and deploying systems that utilize services ...
Python Developer
Manhattan, NY · On-site
$150K - $250K/yr
Familiar with quantitative finance and electronic trading concepts and financial data * Equities ... orchestration technologies * Experience building and deploying systems that utilize services ...
ECS - Systems Engineer Windows/VMWare (Mid-Top Secret-Onsite-Hun with Security Clearance
Huntsville, AL · On-site
ECS - Systems Engineer Windows/VMWare (Mid-Top Secret-Onsite-Huntsville) Open Systems Technologies Corporation - Huntsville, AL, United States Tagged: active directory, VMware, Windows Open Systems ...
New
ECS - Systems Engineer Windows/VMWare (Mid-Top Secret-Onsite-Hun with Security Clearance
Huntsville, AL · On-site
ECS - Systems Engineer Windows/VMWare (Mid-Top Secret-Onsite-Huntsville) Open Systems Technologies Corporation - Huntsville, AL, United States Tagged: active directory, VMware, Windows Open Systems ...
New
Senior Software Engineer, AI Automations
San Carlos, CA · On-site
$147K - $195K/yr
Open Systems Technologies is seeking a Senior Software Engineer specializing in AI Automations. The role involves designing and implementing tools and workflows that automate business processes, as ...
Senior Software Engineer, AI Automations
San Carlos, CA · On-site
$147K - $195K/yr
Open Systems Technologies is seeking a Senior Software Engineer specializing in AI Automations. The role involves designing and implementing tools and workflows that automate business processes, as ...
Cloud Developer with Security Clearance
Huntsville, AL · On-site
$55.75 - $76.25/hr
Cloud Developer Open Systems Technologies Corporation - Huntsville, AL, United States Open Systems Technologies Corporation is looking for a Cloud Developer to join our high performing cyber team in ...
Cloud Developer with Security Clearance
Huntsville, AL · On-site
$55.75 - $76.25/hr
Cloud Developer Open Systems Technologies Corporation - Huntsville, AL, United States Open Systems Technologies Corporation is looking for a Cloud Developer to join our high performing cyber team in ...
Engineering Open Systems Technologies Corporation is looking for a Systems Administrator to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a highly ...
Engineering Open Systems Technologies Corporation is looking for a Systems Administrator to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a highly ...
Information Systems Security Engineer (ISSE) with Security Clearance
Annapolis Junction, MD · On-site
Information Systems Security Engineer (ISSE) Open Systems Technologies Corporation - Annapolis ... ISSE, Information Technology, TS/SCI with Poly (MPO) Open Systems Technologies Corporation is a ...
Information Systems Security Engineer (ISSE) with Security Clearance
Annapolis Junction, MD · On-site
Information Systems Security Engineer (ISSE) Open Systems Technologies Corporation - Annapolis ... ISSE, Information Technology, TS/SCI with Poly (MPO) Open Systems Technologies Corporation is a ...
Network Engineer Open Systems Technologies Corporation - Quantico, VA, United States Open Systems Technologies Corporation is a leader in the government contracting marketplace, providing Enterprise ...
Network Engineer Open Systems Technologies Corporation - Quantico, VA, United States Open Systems Technologies Corporation is a leader in the government contracting marketplace, providing Enterprise ...
Elasticsearch Open Systems Technologies Corporation is seeking a Software Engineer to work on a large IT project supporting the intelligence community. The Elasticsearch Engineer/Developer will ...
Elasticsearch Open Systems Technologies Corporation is seeking a Software Engineer to work on a large IT project supporting the intelligence community. The Elasticsearch Engineer/Developer will ...
DevOps Engineer
Huntsville, AL · On-site
$52.25 - $71.75/hr
Open Systems Technologies Corporation is looking for a DevOps Engineer to join our high performing cyber team in support of a large SOC enterprise environment. Responsibilities Responsible for the ...
DevOps Engineer
Huntsville, AL · On-site
$52.25 - $71.75/hr
Open Systems Technologies Corporation is looking for a DevOps Engineer to join our high performing cyber team in support of a large SOC enterprise environment. Responsibilities Responsible for the ...
TS/SCI, Information Technology, Network Open Systems Technologies Corporation is looking for an experienced Network Engineer to work on a long term contract supporting the FBI. The Network Engineer ...
TS/SCI, Information Technology, Network Open Systems Technologies Corporation is looking for an experienced Network Engineer to work on a long term contract supporting the FBI. The Network Engineer ...
DevOps Engineer
Huntsville, AL · On-site
$52.25 - $71.75/hr
Open Systems Technologies Corporation is looking for a DevOps Engineer to join our high performing cyber team in support of a large SOC enterprise environment. Responsibilities Responsible for the ...
DevOps Engineer
Huntsville, AL · On-site
$52.25 - $71.75/hr
Open Systems Technologies Corporation is looking for a DevOps Engineer to join our high performing cyber team in support of a large SOC enterprise environment. Responsibilities Responsible for the ...
C++/Java Developer
New York, NY · On-site
$150/hr
Design, develop, and deploy new and existing high-volume, business critical trading systems ... Quantitative proficiency is a plus * Experience working in a trading environment * Bachelor degree ...
C++/Java Developer
New York, NY · On-site
$150/hr
Design, develop, and deploy new and existing high-volume, business critical trading systems ... Quantitative proficiency is a plus * Experience working in a trading environment * Bachelor degree ...
Open Systems Technologies Jobs Information
What is it like to work at Open Systems Technologies?
What makes Open Systems Technologies an attractive place to work?
What other companies are hiring for Quantitative Developer jobs?
What are the most popular jobs at Open Systems Technologies?
What are the most popular categories at Open Systems Technologies?

System Administrator
Annapolis Junction, MD • On-site
Full-time
Medical, Dental, Life, Retirement, PTO
Re-posted 4 days ago
Key responsibilities
Monitor, maintain, and troubleshoot mission operations systems and infrastructure.
Install, configure, and administer Linux operating systems and applications.
Collaborate with engineering and operations teams to resolve system issues and improve performance.
Job description
Network Engineers | Storage Engineers | Platform Engineers
Locations: Maryland and Utah
Clearance Required: Active TS/SCI with Polygraph
Citizenship: U.S. Citizenship Required
Position Overview
Open Systems Technologies Corporation (OST) is seeking System Administrators at all experience levels to support mission-critical operations in Maryland and Utah. These funded positions support high-performance computing (HPC) environments and mission operations sustainment activities, including monitoring, troubleshooting, maintenance, and optimization of complex Linux-based infrastructures.
We are seeking candidates with strong Linux administration skills and a passion for solving complex technical challenges. Whether your expertise is in platform engineering, networking, or storage systems, you will play a critical role in ensuring the reliability, performance, and availability of mission-essential environments.
Responsibilities
- Monitor, maintain, and troubleshoot mission operations systems and infrastructure.
- Install, configure, and administer Linux operating systems and applications.
- Configure and manage file systems, networking services, and system resources.
- Perform operating system and application troubleshooting in complex environments.
- Develop and maintain Bash scripts to automate administrative tasks.
- Compile, install, configure, and support software applications.
- Support infrastructure automation and configuration management initiatives.
- Collaborate with engineering and operations teams to resolve system issues and improve performance.
- Document configurations, procedures, and troubleshooting processes.
- Participate in system upgrades, maintenance activities, and operational support.
Note: Regardless of specialization, all team members are expected to perform core Linux system administration functions and contribute to overall system sustainment efforts.
Required Qualifications
- Active TS/SCI with Polygraph security clearance.
- U.S. Citizenship.
- Experience administering Linux operating systems, including:
- Red Hat Enterprise Linux (RHEL)
- CentOS
- Rocky Linux
- SUSE Linux Enterprise Server (SLES)
- Ubuntu
- Experience with:
- Linux installation and configuration
- File system administration
- TCP/IP networking
- Operating system troubleshooting
- Application troubleshooting
- Bash scripting
- Software compilation and installation
- Strong analytical and troubleshooting skills.
- Ability to work independently and collaboratively in dynamic mission environments.
Desired Qualifications
- Understanding of High-Performance Computing (HPC) architectures.
- Experience supporting large-scale enterprise or mission-critical environments.
- Knowledge of high-speed networking technologies including:
- InfiniBand
- Slingshot
- Experience with:
- Jira
- Confluence
- Grafana
- Prometheus
- Nagios
- Slurm
- Git
- Salt
- Ansible
Storage & Network Engineering Preferred Experience
Candidates with storage, networking, or infrastructure engineering backgrounds are highly encouraged to apply.
Storage Technologies
- Lustre file system configuration, administration, and troubleshooting.
- Experience with DDN Exascaler file system appliances.
- Storage fabric design, implementation, and support.
- Storage performance tuning and optimization.
Networking Technologies
- TCP/IP networking and storage networking concepts.
- Experience with enterprise routing and switching platforms, including:
- Cisco
- Juniper
- Arista
Emerging Technologies
Experience or interest in learning:
- E1000 Storage Systems
- Elastic Storage Nodes (ESNs)
- DAOS (Distributed Asynchronous Object Storage)
- Weka Data Platform
Performance and Benchmarking Tools
Experience with one or more of the following:
- IOR
- iperf
- FIO
- lnet_selftest
What We're Looking For
Successful candidates are naturally curious problem-solvers who enjoy working in complex environments and continuously expanding their technical expertise. Our environments are highly customized, and effective troubleshooting often requires creativity, critical thinking, and a willingness to investigate beyond standard solutions.
We value professionals who:
- Demonstrate initiative and ownership.
- Thrive in collaborative environments.
- Enjoy learning new technologies.
- Have a strong commitment to mission success.
- Possess excellent troubleshooting and analytical skills.
Benefits
OST has been providing mission-critical support to Government agencies since 1996 and offers a comprehensive benefits package including:
- 3 Weeks Paid Time Off
- 11 Federal Holidays
- Medical and Dental Coverage
- Short-Term Disability (STD)
- Long-Term Disability (LTD)
- Life Insurance
- Accidental Death & Dismemberment (AD&D) Coverage
- 401(k) with up to 4% Company Match
About OST
Open Systems Technologies Corporation (OST) is an Equal Opportunity Employer dedicated to delivering innovative technology solutions and exceptional support to Government customers. We foster a culture of technical excellence, continuous learning, and professional growth while supporting some of the nation's most critical missions.