117 linux system engineer jobs at 47 companies in Middletown, DE
🚀PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Ghost Robotics: Developing autonomous quadrupedal robots for defense and industrial applications.
Deep Linux kernel and embedded Linux expertise, experience with kernel patching, cross-compilation, debugging utilities, C++, Python, Bash, Git, and embedded platforms (Yocto, Jetson). Permanent U.S. residency and background checks required.
Jovian Concepts: Provides technical services and engineering to the intelligence community.
20+ YOEActive TS/SCI clearance with polygraph; bachelor’s in engineering or related field with 20 years’ experience or high school diploma/ GED with 25 years’ experience; FORNSAT and systems integration experience; Linux/Windows admin; virtualization.
FORNSAT, GOTS, Linux, Windows Server, Virtualization, Cloud
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
3+ YOESenior system engineer with RF, IP networking, and telecom system design; BS in engineering with 3+ years or 5+ years experience; US work authorization; travel 25-50%; remote work.
The Wenger Group: Family-owned agricultural organization providing animal nutrition and protein products.
5+ YOEDesign, implement, and optimize enterprise IT infrastructure across 30+ locations; expertise in Windows/Linux, virtualization, cloud (AWS/Azure/GCP), automation (Ansible, Terraform, PowerShell/Python), security and disaster recovery; 5+ years experience.
Windows Server, Linux, VMware vSphere, Hyper-V, Nutanix, Microsoft Azure, AWS, GCP, Docker, Kubernetes, Terraform, Ansible, PowerShell, Python, Bash, Veeam, Rubrik, Cohesity, Microsoft Active Directory, Group Policy, DNS, DHCP, IAM, Microsoft Azure Security Center, AWS IAM, CI/CD, NIST, ISO 27001, SOC 2
The GBS Group: Provides technical engineering and maintenance services for infrastructure assets.
3+ YOEABET-accredited BS in CS/EE/CE or cybersecurity, 2–3+ years cybersecurity/IT experience, Security+ or CISSP, RMF and Linux experience, vulnerability analysis experience, ability to obtain security clearance (US citizenship required).
RMF, DISA Security Technical Implementation Guides (STIGs), Security Requirements Guides (SRGs), Assured Compliance Assessment Solution (ACAS), ACAS, AV, Standard Engineering Process (SEP), Windows, Linux, Red Hat Enterprise Linux (RHEL), VxWorks
Susquehanna International Group: Global quantitative trading and market making firm.
Support Linux systems for production trading, troubleshoot outages, script automation (Bash/Python), communicate with business and engineering teams; BS in technical field preferred.
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
Experience in application support/operations/DevOps or systems administration; scripting (Bash, Python); Unix/Linux command line; troubleshooting during outages; ability to integrate AI tools; BS in a technical discipline preferred.
Technical Lead Member Engineering Staff - Systems Security Engineer (40852)
Camden, New Jersey, United States
$105k-$194k/yrOnsiteFull Time
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
12+ YOEBachelor's in engineering, active DoD clearance (SECRET minimum), 12+ years systems engineering experience with information assurance/cryptography, NSA Type-1 experience preferred, MBSE and integration/test experience, strong communication skills.
Model-Based Systems Engineering (MBSE), EKMS, KMI, PKI, TLS, Linux
Systems Engineer - Linux TS/ SCI (TS/SCI Required)
King of Prussia, Pennsylvania, United States
$77k-$135k/yrOnsiteFull Time
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
1+ YOEActive TS/SCI clearance, US citizenship, Bachelor’s degree (or equivalent) with 1+ years experience (or Master’s with no experience). Experience with Linux administration, systems integration, configuration management, and scripting (Ansible, Bash).
Linux RedHat, Red Hat OpenShift, Ansible, Bash, Ansible Tower, AWX
Systems and Database Engineer | Database Services | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
1+ YOEExperience with database and systems engineering, SQL and Python proficiency, Kubernetes and Linux fundamentals, and 1+ years in database/systems engineering or related roles supporting production environments.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
3+ YOEBachelor's degree and 3+ years experience; Secret clearance required. Experience engineering/integrating Cross Domain Solutions, familiarity with DoD RMF and related policies, hands-on CDS technology experience, Linux systems engineering.
Radiant Mercury, High Speed Guard, TACDS, ISSE Guard, OWL XD, Linux, DoD Risk Management Framework (RMF), ICD 503, NIST 800-53, DoDI 8540.01, AR 25-2-1
Johnston or Pittsburgh or Irving or Phoenix or Franklin or Charlotte or Cleveland or Boston or Iselin or Philadelphia or Chicago
$175k-$250k/yrOnsiteFull Time
Citizens Financial GroupNYSE: CFG: Provides retail, commercial, and private banking services to customers.
10+ YOE10+ years in software/platform/security/data engineering; strong Python and Linux scripting; AWS and cloud security experience; CI/CD and large-scale distributed systems expertise; bachelor's degree required.
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
2+ YOEBachelor's in CS/Engineering, 2 years developing/maintaining software security systems, web app penetration testing, Linux and Python scripting; OSCP required.
Burp Suite, Bash, Python, Nuclei, Qualys, Nessus, Kali Linux
Principal / Senior Mission Engineering Systems Engineer
Baltimore, Maryland, United States
$109k-$163k/yrOnsiteFull Time
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
5+ YOEU.S. citizen with active Secret clearance, 5+ years systems/mission engineering experience (or higher per degree), experience with modeling & simulation (MATLAB, STK), combat simulation (AFSIM/Brawler), Python/C/C++, Linux/Windows scripting, DOE/statistics, and DoD test/acquisition experience.
MATLAB, STK, AFSIM, Brawler, Python, C/C++, Linux, Windows, JMP, R
Red Arch Solutions: Provides IT engineering solutions for the intelligence community.
20+ YOEActive TS/SCI with polygraph; 20+ years SE experience; BS in a related field; Linux CLI; scripting (Bash/Python); Linux admin in large environments; Delinea product experience; IAM and secrets; IaC (Ansible/SaltStack); containerization knowledge.
LexisNexisNYSE: RELX: Provides legal research and business analytics software solutions.
6+ YOEUS citizen required with Public Trust clearance; 6+ years systems engineering experience; Windows and Linux administration; Active Directory, DNS, DHCP, virtualization, storage, backup, cloud (Azure/AWS); PowerShell and automation experience.
Windows Server 2016–2025, Microsoft Azure, Hyper-V, Microsoft Entra ID, Microsoft Intune, Azure Monitor, Datadog, PowerShell, Bash, Python, Ansible, Terraform, Qualys, Tanium, Microsoft Defender
RELXLondon Stock Exchange: REL: Provides professional data analytics, scientific publishing, and trade exhibitions.
6+ YOEUS citizen eligible for Public Trust clearance, Bachelor's or equivalent,6+ years systems engineering experience, Windows/Linux administration, Azure/AWS, virtualization, storage/backups, automation with PowerShell/Ansible/Terraform, monitoring and security tooling.
Windows Server, Microsoft Azure, Hyper-V, Microsoft Entra ID, Microsoft Intune, Azure Monitor, Datadog, PowerShell, Bash, Python, Ansible, Terraform, Qualys, Tanium, Microsoft Defender
San Francisco or Boston or Washington D.C. or Raleigh or Pittsburgh or Philadelphia or New York City or Miami or Columbus or Austin or United States
$125k-$130k/yrRemoteFull Time
Astronomer: Managed data orchestration platform powered by Apache Airflow.
5+ YOE5+ years with large cloud infrastructures, 3+ years Kubernetes, production distributed systems on AWS/GCP/Azure, strong Linux, Python scripting, DevOps/CI/CD, observability/monitoring, and customer-facing troubleshooting.