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Sierra Vista, Arizona

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Documentations, Linux, Systems Design, Systems Engineering Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Deliver simple solutions to complex problems as a Senior Linux System Engineer at GDIT. Here, you'll ta

Full-time

USD 88,130.00 - 117,875.00 per year

Senior Linux System Administrator Vice President

Remote or Irving, Texas

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Today

Job Overview: We are seeking an accomplished and technically astute Level 3 Linux System Administrator to join our high-performance infrastructure team. This individual will serve as a subject matter expert (SME) on Linux systems, providing deep operational insight, advanced troubleshooting, performance tuning and capacity planning. Demonstrate a strong balance on hands-on expertise, automation mindset, and a strategic approach to system scalability, security, and lifecycle management. Respons

Full-time

USD 125,760.00 - 188,640.00 per year

Sr. Linux Systems Engineer

Remote or Hybrid in Tysons, Virginia

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16d ago

ITCON Services is seeking to hire a motivated and knowledgeable Sr. Systems Engineer (Sr. Linux Systems/Azure Cloud Engineer) to join our team. Location: Tysons, VA area Fully Remote is available for the right candidate Required Skills and Qualifications Has 10+ experience providing production support, platform/server administration support, and environment standardization for development, test, and Production for both Windows and Linux (Redhat and other)Experience with Linux hardening (CIS/STI

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Full-time

$120,000+

Senior Engineer - Linux Kernel

Remote or Austin, Texas

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Today

Senior Engineer - Linux Kernel Location: Austin, TX (Remote) About The Opportunity The Senior Engineer - Systems (Kernel Sustaining) provides technical expertise and leadership for maintaining Linux kernel components, drivers, and subsystems. Senior Engineers work independently on complex kernel issues, address CVE vulnerabilities, and mentor junior engineers in kernel development. In your daily job you will: Development & Implementation Maintain Linux kernel components, drivers, and subsystems

Full-time

SAP NS2 Senior Linux & Java Systems Engineer-Hybrid-TS/SCI Required+ Poly-Bolling

Remote or Herndon, Virginia

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Today

We help the world run better At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talents to help shape what's next. The work is challenging - but it matters. You'll find a place where you can be yourself, prioritize your wellbeing, and truly belong. What's in it for you? Constant learning, skill growth, great benefits, and a team that wants you to grow and succeed

Full-time

Senior Linux Systems Engineer

Remote or Sterling, Virginia

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Today

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Full-time

Senior C++ Security Engineer-ONLY W2

Remote

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5d ago

Senior C++ Security Engineer / BYD2222 Duration: 6 months Location: remote About the Role We are seeking a Senior C++ Security Engineer to support a FIPS-compliant initiative within a high-scale endpoint management platform. This role will focus on cryptographic system design, secure network communication, and cross-platform software development in C++. The ideal candidate has deep experience in modern C++ (C++14+), OpenSSL, and network programming, with a strong understanding of secure software

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Contract

$45 - $50

Senior Linux/Unix Systems Administrator

Remote or South Carolina

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Today

We are seeking a Senior Linux/Unix Systems Administrator to manage mission-critical systems in a 100% remote capacity. The Details Work Arrangement: 100% Remote (Must reside in the Continental US). Time Zone: Must be comfortable working EST hours. Location: Columbia, SC (Remote). Interview Process: 1 Round, Virtual. Core Responsibilities System Mastery (40%): Install, maintain, and tune system software for mission-critical performance and stability. Collaboration (35%): Act as the Subject Matt

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Contract

Senior Unix/Linux Admin

Remote

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Today

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what's possible. Job Description: This job opening is for an experienced Unix/Linux Administrator to pro

Full-time

USD 88,400.00 - 154,700.00 per year

Senior Advanced System Admin Specialist

Remote or Scottsdale, Arizona

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Today

Basic Qualifications Education Requirements: Bachelor's degree in Computer Science, a related field or equivalent experience is required plus a minimum of 8 years of relevant experience; or Master's degree plus 6 years of relevant experience. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Put your engineering talent to the ultimate test. At General Dynamics Mission Systems, we create the technologies, products and s

Full-time

USD 126,862.00 - 137,269.00 per year

Senior System Engineer - Maryland

Remote or Maryland

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Today

Company Overview At Motorola Solutions, we believe that everything starts with our people. We're a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. We build and connect technologies to help protect people, property and places. Our solutions foster the collaboration that's critical for safer communities, safer schools, safer hospitals, safer businesses, and ultimately, safer nations. Connect with a career that matters, and help us build a safer

Full-time

USD 120,000.00 - 140,000.00 per year

Lead OS System Engineer

Remote

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8d ago

Job Requirements: Core Languages: Expert-level proficiency in C/C++.Embedded Mastery: Deep experience in Embedded Systems development, including bootloaders, interrupts, and memory-mapped I/O.OS Internals: Linux: Kernel-level development, driver writing, and D-Bsystemd integration.Android: Deep knowledge of the AOSP stack, HIDL/AIDL, and Binder IPC.Windows: Experience with Windows Driver Model (WDM) or Windows System Services.RTOS: Proven track record with FreeRTOS, QNX, or Zephyr in mission-cr

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Full-time, Third Party

Depends on Experience

Systems Engineer - IT, Senior / Clearance Eligible / TX or CA / Hybrid

Remote or Fort Worth, Texas

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Today

Job Description Lockheed Martin is a leading technology-innovation company with > 100,000 employees, partners worldwide, and 570+ facilities spanning 70 countries. Headquartered in Bethesda, MD, we operate in all 50 states. Position Overview We are looking for an IT Systems Engineer Sr to join the team at either our Palmdale or Ft Worth sites. The engineer will: Manage isolated (closed) environments (including DoD cloud) for assigned programs Apply patches, manage compliance and deploy infrast

Full-time

USD 85,500.00 - 150,765.00 per year

Senior OmniPlus Developer (COBOL / VSAM) - OmniPlus and OmniScript platforms

Remote

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Yesterday

We are seeking a highly skilled OmniPlus Developer / Product Specialist with strong experience in OmniPlus, OmniScript, Linux Shell Scripting, VSAM, and COBOL. The ideal candidate will have experience working in the retirement or insurance domain and will play a key role in designing, developing, and supporting enterprise product solutions. This role requires a proactive professional who can collaborate across teams, optimize legacy systems, and contribute to the development of scalable and secu

Easy Apply

Contract, Third Party

Depends on Experience

Senior Unix Engineer

Remote

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4d ago

Job Title: Senior UNIX EngineerLocation: Remote Duration: Long TermPosition Description:Opportunity for an experienced Senior UNIX Engineer to join an IT Operations Project for a federal government system. The candidate will provide UNIX engineering design, configuration, and installation support for large enterprise UNIX environment hosted on premise and in the cloud.Roles and Responsibilities:Configure and install UNIX systems supporting various Linux and UNIX operating systems in a virtualize

Easy Apply

Contract

Depends on Experience

Senior Embedded Software Engineer

Remote

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18d ago

Responsibilities:Develop the C++ applications that control our next generation of satellite terminalsDesign, code, test and integrate software from requirements to production and commercial deploymentAssist with estimation of time and effort required to implement new featuresParticipate in design reviews, peer code reviews and improve product qualityInterface and work with cross-functional teams to successfully implement feature dependenciesIntegrate and validate new product designsAct as a memb

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Full-time, Third Party

150,000 - 160,000

Senior Software Engineer (hybrid)

Remote or Glendale, Wisconsin

•

Today

What you will do Johnson Controls is hiring! In this role, you will be responsible for the design, development, and verification of real time embedded products within a Building Automation System (BAS) under minimal direction in collaboration with a team of engineers. The position will focus on new feature development as well as maintenance and stewardship of existing software system. This is a hybrid position requiring you to be in the Glendale, WI, office 3 days per week. Candidates must be co

Full-time

USD 95,000.00 - 125,000.00 per year

Security Software Engineer, Infrastructure Security (Staff or Senior)

Remote or Austin, Texas

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Today

We are hiring an experienced Security Software Engineer (Staff or Senior) for our Infrastructure Security team to design and build scalable security controls and services within MongoDB Atlas multi-cloud infrastructure. The team sits within the Site Reliability Engineering organization and works with other engineering teams to ensure that our infrastructure adheres to the highest security standards. This role can be based out of our New York City, Austin, Seattle or San Francisco offices, or w

Full-time

USD 127,000.00 - 249,000.00 per year

Sr. Software Engineer

Remote or Plano, Texas

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Today

Do you enjoy developing new products and services? Join us! Our Software Engineers work in an agile, collective environment. As a Senior Software Engineer, you will be responsible for driving the strategic development and continuous improvement of software systems for cutting-edge aerospace applications. You will lead cross-functional teams and projects to ensure software excellence. The Mission Solutions and Technologies (MST) business area provides affordable, turn-key command/control, commun

Full-time

Sr Service Engineer - TCSII SME (Onsite)

Remote or California

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12d ago

Date Posted: 2026-04-01 Country: United States of America Location: US-CA-REMOTE Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required on day 1 Collins Aerospace is looking for an experienced Sr Service Engineer to join their service engine

Full-time

USD 86,800.00 per year

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