Jobs in United States

Systems Administrator in United States

5,022 active opportunities · Updated October 2026

Explore current systems administrator jobs across United States. Filter by work mode, employment type, experience, department, date posted and distance.

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📍 Bethesda, Moldova, United States
✓ Quality checkedCompany trend +420%

Leidos has an exciting opportunity for a Principal Java Developer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary A Java developer on this program provides Agile development and operations and maintenance for mission critical systems. Based in DevOps framework, this role participates in major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participates in software programming initiatives, shaping backend architecture, mentoring team members, and conducting code reviews. Develops and directs software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within a cloud-based platform leveraging platform services. Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs Support the Agil

PythonJavaPostgreSQLAWS
L
📍 Bethesda, Moldova, United States
✓ Quality checkedCompany trend +420%

Leidos has an exciting opportunity for a Java Developer (SME) in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary As a Java Developer you will to provide Agile DevOps support to mission critical systems. The candidate will provide technical expertise and support in the design, development, implementation and testing of the customer tools and applications in support of Extracting, Transforming and Loading data into an enterprise Data Lake. Based in a DevOps framework, the candidate will participate in and/or direct major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. This role requires the development of custom code/scripts to quickly extract, triage and exploit data across domains and data stores. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participates in and direct software programming initiatives, shaping backend architecture, mentoring team members, and conducting code reviews. Develops and directs software system validation and testing methods using Junit and Katalon and uses integrated custom develo

PythonJavaPostgreSQLAWS
L
📍 Bethesda, Moldova, United States
✓ Quality checkedCompany trend +420%

Leidos is looking for our next TS/SCI-cleared Elastic Search Engineer to join a high-energy team building and deploying a cutting-edge technology stack to support our client’s mission to centralize and standardize Tasking, Collection, Processing, Exploitation and Dissemination (TCPED) of Open Source Intelligence (OSINT) across the DoD and IC enterprise. We integrate off the shelf and newly development software to sustain and enhance the TCPED platform. We leverage cloud-based computing, artificial intelligence (Al), machine learning (ML) and cross-domain transfer systems to provide cutting edge data exploitation, enrichment, triage, and analytics capabilities to Defense and Intelligence Community members. DTP advances the state of the art in mission-focused big data analytics tools and micro-service development spanning the breadth of Agile sprints to multiyear research and development cycles. As an Elastic Search Engineer, you’ll be a member of our platform engineering team and help develop, deploy and maintain nosql databases as foundational elements of our microservice eco-system using a Kubernetes as foundational platform. You’ll also support the adoption of GitOps best practices across cross-functional engineering teams. In this fast-paced environment, you’ll collaborate closely with systems engineering, architecture, development, security, operations, and integrations teams. Work is conducted on-site at our client location in Bethesda, MD. Key Responsibilities Include: Deploy, triage, debug, and maintain production class databases like Elasticsearch and Redis Design and support database configuration management strategies across air-gapped network fabrics Partner with Systems Engineers to architect solutions for new capabilities Contribute to operational monitoring capabilities to provide proactive system notifications Contribute technical input to engineering document

RedisKubernetesLinuxMachine Learning
B
📍 Herndon, United States
✓ Quality checkedCompany trend +7.9%

Audiovisual Technician / Installer (Associate, Experienced or Senior) Company: The Boeing Company Boeing Defense, Space & Security (BDS) / Intelligence Systems (IS) is looking for a motivated and self-starting Audiovisual Technician / Installer (Associate, Experienced or Senior) to join our team based in Herndon, VA . Position Responsibilities: Survey, plan, design, configure, and test multi-classification AV solutions tailored for government customers. Create custom audiovisual system designs, including DSP layouts and system configurations Participate in customer stakeholder meetings to gather, document, and validate system requirements. Research, evaluate, and recommend technology solutions to address customer needs Prepare detailed system engineering documentation such as signal flow diagrams, line diagrams, bills of materials, rack elevations, and cable plant layouts Continuously enhance industry knowledge and technical skills through ongoing training, certifications, and review of relevant trade publications Support and lead onsite AV system installations and configuration phases Collaborate closely with customer facility teams, subcontractors, and vendors during installation as needed Assist in developing end-user training materials, as well as operations and maintenance plans Conduct thorough in-house testing and perform on-site system commissioning at client locations Basic Qualifications (Required Skills/Experience): This position requires an active Top Secret/SCI U.S. Security Clearance with an active Counterintelligence Polygraph (U.S. Citizenship Required) (A U.S. Security Clearance that

AutocadRecruitment
B
Relocation support. Relocation assistance is stated. This does not establish visa sponsorship.
📍 Herndon, Vatican City State (holy See), United States
✓ Quality checkedCompany trend +7.9%

Audio Visual Programmer Analyst (Experienced, Senior or Lead) Company: The Boeing Company Boeing Defense, Space & Security (BDS) / Intelligence Systems (IS) is looking for a motivated and self-starting Audio Visual Programmer Analyst (Experienced, Senior or Lead) to join our team based in Herndon, VA . Basic Qualifications (Required Skills/Experience): This position requires an Active TS/SCI U.S. Security Clearance. (U.S. Citizenship Required) (A U.S. Security Clearance that has been active in the past 24 months is considered active.) Level 3: 3&#43; years of related work experience or an equivalent combination of education and experience Proficiency in modern programming and scripting languages such as C#, C&#43;&#43;, Java, JavaScript, Perl, Python, and Visual Basic Experience in system integration, testing, and troubleshooting of complex A/V systems Hands-on experience with network programming Strong analytical and problem-solving skills with attention to detail Familiarity with systems engineering principles and integration best practices Preferred Qualifications (Desired Skills/Experience): Level 4: 5&#43; years of related work experience or an equivalent combination of education and experience Level 5: 10&#43; years of related work experience or an equivalent combination of education and experience An Active TS/SCI U.S. Security Clearance and current Counterintelligence Polygraph (CIP) Experience with Crestron programming and system environments using SIMPL&#43; or C# Experience translating customer requirements into software designs </

JavaScriptPythonJavaC#
B
Relocation support. Relocation assistance is stated. This does not establish visa sponsorship.
📍 Herndon, Vatican City State (holy See), United States
✓ Quality checkedCompany trend +7.9%

Audiovisual Technician / Installer (Associate, Experienced or Senior) Company: The Boeing Company Boeing Defense, Space & Security (BDS) / Intelligence Systems (IS) is looking for a motivated and self-starting Audiovisual Technician / Installer (Associate, Experienced or Senior) to join our team based in Herndon, VA . Position Responsibilities: Survey, plan, design, configure, and test multi-classification AV solutions tailored for government customers. Create custom audiovisual system designs, including DSP layouts and system configurations Participate in customer stakeholder meetings to gather, document, and validate system requirements. Research, evaluate, and recommend technology solutions to address customer needs Prepare detailed system engineering documentation such as signal flow diagrams, line diagrams, bills of materials, rack elevations, and cable plant layouts Continuously enhance industry knowledge and technical skills through ongoing training, certifications, and review of relevant trade publications Support and lead onsite AV system installations and configuration phases Collaborate closely with customer facility teams, subcontractors, and vendors during installation as needed Assist in developing end-user training materials, as well as operations and maintenance plans Conduct thorough in-house testing and perform on-site system commissioning at client locations Basic Qualifications (Required Skills/Experience): This position requires an Active U.S Top Secret/SCI U.S. Security Clearance (U.S. Citizenship Required) (A U.S. Security Clearance that has been active in the past 24 months is

AutocadRecruitment
B
Relocation support. Relocation assistance is stated. This does not establish visa sponsorship.
📍 Colorado Springs, Colombia, United States
✓ Quality checkedCompany trend +7.9%

Senior DevSecOps Software Engineer Company: The Boeing Company The Boeing Company has an exciting opportunity for a Senior DevSecOps Software Engineer to support the Protected Tactical Enterprise Service (PTES) team in Colorado Springs, CO. As a DevSecOps Engineer on the Protected Tactical Enterprise Service (PTES) team, you will be responsible for integrating security practices within the development and operations lifecycle of tactical enterprise systems. You will collaborate closely with software developers, security teams, and infrastructure engineers to design, implement, and maintain secure, automated CI/CD pipelines, ensuring the delivery of resilient and compliant services in protected operational environments. Position Responsibilities: Leads the design, development, analyses, and maintenance of software systems that meet industry, customer and internal quality, safety, security and certification standards Partners with appropriate stakeholders to inform system definition and reviews translation of system-level requirements into software requirements and models that meet customer, operational and performance requirements and have clear traceability to design, code and test artifacts Reviews completion of software system-level analyses to identify risk, issues and opportunities; leads integration and deployment of mitigation actions throughout the software lifecycle. Leads code reviews to ensure alignment to requirements and standard Leads monitoring and reviewing test completion, verification processes and issue resolution for software systems Leads development of user documentation and training to educate end users about usage of software products Leads review of pr

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B
📍 Berkeley, Macau S.a.r., United States
✓ Quality checkedCompany trend +7.9%

Nondestructive Test (NDT) Technician - UT & RT Company: Boeing Defense, Space & Security (BDS) has exciting opportunities for Nondestructive Test (NDT) Technicians (Associate or Experienced) in St. Louis, MO! Join our dynamic and supportive Quality team! In this role, you will conduct Non-Destructive Testing (NDT) on aerospace products using cutting edge methods including ultrasonic (UT), eddy current (ET), and radiographic (RT). You will work with digital and automated inspection systems in an aerospace environment aligned with industry standards and regulations. Opportunities for rapid skill growth and progress depending on performance. Employees will be required to obtain Boeing NDT certification and pass a vision exam. Failure to achieve or maintain certification requirements may lead to termination of employment. Candidates must have documented evidence of NDT education and/or OJT hours in UT or RT available for Boeing Level 3 review. Work Environment: May be exposed to noise, dust, fumes, airborne particles, smoke (not over OSHA permissible exposure levels). This position requires the applicant to work in a radiation environment and involves exposure to radiation. Candidates must demonstrate a strong understanding of relevant safety and health regulations, protocols, policies, and procedures to ensure a safe working atmosphere for self and others. Safety training and equipment are provided by Boeing in accordance with applicable laws, industry standards, and company policies. Will be required to wear Personal Protective Equipment (PPE) applicable to the testing method being used. Able and willing

ExcelRecruitment
B
Relocation support. Relocation assistance is stated. This does not establish visa sponsorship.
📍 Herndon, Vatican City State (holy See), United States
✓ Quality checkedCompany trend +7.9%

Audiovisual Design & Integration Specialist (Experienced or Senior) Company: The Boeing Company Boeing Defense, Space & Security (BDS) / Intelligence Systems (IS) is seeking motivated and self-starting Audiovisual Design & Integration Specialist (Experienced or Senior) for a position based in Herndon, VA . Our team in the Washington, DC Metro region designs, configures, and operates advanced AV systems for U.S. Government customers. Position Responsibilities: Survey, plan, develop, design, configure, and test multi-classification AV solutions for government customers. Generate custom audiovisual system designs, including DSP layouts and systems configuration. Lead or attend customer stakeholder meetings to collect and document or validate system requirements. Research, identify, and recommend technology options to solve customer problems Draft system engineering documentation, including signal flows, line diagrams, bills of materials, rack elevations, and cable plants Support onsite installation of AV systems and lead system configuration phases Coordinate with customer facilities teams and other onsite sub-contractors and vendors during systems installation as required Support the development of end-user training materials and operations & maintenance plans Perform in-house testing and on-site commissioning at client locations Develop expertise in the industry through continuing training, certifications, and review of trade publications Basic Qualifications (Required Skills/Experience): This position requires an active Top Secret/SCI U.S. Security Clearance (U.S. Citizenship Re

Recruitment
B
Relocation support. Relocation assistance is stated. This does not establish visa sponsorship.
📍 Colorado Springs, Colombia, United States
✓ Quality checkedCompany trend +7.9%

Configuration Management Specialist (Associate, Experienced and Lead) Company: The Boeing Company Boeing Space, Intelligence & Weapons Systems (SI&WS) in Seal Beach California or Colorado Springs, Colorado, is seeking an Configuration Management Specialist (Associate, Experienced and Lead) to support the ESS – MPA Phase 3 Program. Responsibilities of this position include but not limited to oversee and review of software and hardware documentation for internal consistency and adherence to Boeing and program standards, oversee configuration control of work products, generating CM records as evidence of adherence to CM plans and Boeing standards, verifies accuracy of deliveries, both internal and external, support Change Boards, and responds to internal audits and customer queries. This position requires the CM representative to lead the CM activities for the program and also be responsible for maintaining large number of documents. This position is expected to be 100% onsite in Seal Beach CA or Colorado Springs CO This position also requires the person to have an active DOD-Secret Clearance . Position Responsibilities: Responsibilities of a Software CM practitioner include but not limited to review of software documentation for internal consistency and adherence to Boeing and program standards, oversee configuration control of software work products, generates Software CM records as evidence of adherence to Software CM plans and Boeing standards, verifies accuracy of software deliveries, both internal and external, support Change Boards, and responds to internal audits and customer queries Other duties include, evaluate contracts and modifications in order to establish Contract Data

ProcurementRecruitment
B
📍 Huntington Beach, United States
✓ Quality checkedCompany trend +7.9%

Principal Electro-Optical Infrared Design, Assembly, Integration, and Test Engineer Company: The Boeing Company Boeing Defense, Space and Security (BDS) is seeking a Principal Electro-Optical Infrared Design, Assembly, Integration, and Test Engineer (Level 6) for a satellite development program in Huntington Beach or El Segundo, California. This position will lead a team of engineers, analysts and staff within the Space and Missile Systems (SMS) and Boeing Technology and Innovation (BTI) Mission Systems organizations in the development, assembly, integration, and test of a constellation of satellites. The SMS and BTI organizations develop and capture technology for designing disruptive Mission Systems solutions. Focused on visible and infrared spectrum Electro-Optics Infrared (EO/IR) sensors operating in Space and Air domains, our growing team is leaping ahead of our competition with an exceptional mix of mission architectures, sensor designs, and algorithms for advanced image and data processing. Position Responsibilities: Drives technical excellence throughout all Optical Sensor development activities Troubleshoots sensor design and integration issues with the telescope and sensor focal plane Provides technical leadership to SMS and BTI sensor teams Serves as the primary technical interface with the EO/IR suppliers Provides oversight and approval of technical approaches, products and processes. Works closely with program manager, program chief engineer, and other Boeing teams Ensure mission success and prompt resolution of anomalies Provides mentoring and coaching to Optical Sensor Engineers and Technicians Performs Technical Lead Engi

Recruitment
B
📍 Huntington Beach, United States
✓ Quality checkedCompany trend +7.9%

Experienced Electro-Optical Infrared Design, Assembly, Integration, and Test Engineer Company: The Boeing Company Boeing Defense, Space and Security (BDS) is looking for an Experienced Electro-Optical Infrared Design, Assembly, Integration, and Test Engineer (Level 3) to join our team in Huntington Beach or El Segundo, California. This position will be joining a team of engineers, analysts and staff within the Space and Missile Systems (SMS) and Boeing Technology and Innovation (BTI) Mission Systems organizations in the development, assembly, integration, and test of a constellation of satellites. The SMS and BTI organizations develop and capture technology for designing disruptive Mission Systems solutions. Focused on visible and infrared spectrum Electro-Optics Infrared (EO/IR) sensors operating in Space and Air domains, our growing team is leaping ahead of our competition with an exceptional mix of mission architectures, sensor designs, and algorithms for advanced image and data processing. Position Responsibilities: Develops and validates requirements for various communication, sensor, electronic warfare and other electromagnetic systems and components Develops and validates electromagnetic requirements for electrical\electronic systems, mechanical systems, interconnects and structures Develops architectures to integrate systems and components into higher level systems and platforms Performs trade studies, modeling, simulation and other forms of analysis to predict component, interconnects and system performance and to optimize design around established requirements Defines and conducts tests to validate performance of designs to requirements Manages appropriate aspe

Project ManagementRecruitment
B
Relocation support. Relocation assistance is stated. This does not establish visa sponsorship.
📍 Huntsville, Albania, United States
✓ Quality checkedCompany trend +7.9%

Associate Software Engineer Company: The Boeing Company The Boeing Company has an exciting opportunity for an Associate Software Engineer to support the ADaPS organization in Huntsville, AL. ADaPS (an organization of over 100 software engineers) supports programs across the entire portfolio of Boeing products including Space Launch Systems (SLS), Satellite Efforts, and Advanced Missile Defense efforts including Patriot Advanced Capability (PAC3) and Integrated Fires Protection Capability 2nd Interceptor (IFPC – 2). ADaPS specializes in implementing rapid prototyping and development programs using small, adaptable agile teams. Position Responsibilities: Assists with the development and fielding of flight software for seeker systems Assists with the design and development of test software for seeker software Assists with the development and integration of Weapons Open System Architecture Framework Domains into missile and weapons systems Assists with the development firmware and its integration with hardware/software Works in small agile teams composed of diverse engineering skills Use your talents to tackle complex problems on a variety of programs Develops technical products, plans, documentation, and briefings in support of program requirements Assists with review, analysis and translation of customer requirements into initial design of software products Supports development, documentation and maintenance of architectures, requirements, algorithms, interfaces and designs for software products Security Clearance: This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires

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📍 Illinois, United States of America, United States
✓ Quality checkedCompany trend +19.6%

Technical Consultant / Sales Engineer - Print Level 3 Description - Overview HP is seeking talented Technical Consultants (Sales Engineers) to join our Presales organization. Technical Consultants serve as trusted advisors to customers, partners, and sales teams by providing technical expertise, solution design, business value articulation, and sales support throughout a customer's buying journey. This Sales Engineer - Print 3 posting supports ongoing hiring needs across multiple Technical Consultant job levels and technology disciplines. Multiple positions are open that support either Enterprise or Public Sector markets within the US, and focused on one of the following HP solution stacks: Personal Systems (PS), Print, or Collaboration Solutions. Successful candidates combine strong technical acumen, customer engagement skills, business understanding, and the ability to influence customer outcomes while helping drive revenue growth. Key Responsibilities Collaborate with customers, partners, and account teams to understand business objectives and technical requirements. Design and present solution architectures aligned to customer goals. Deliver demonstrations, workshops, proof-of-concepts, and technical presentations. Translate technical capabilities into business outcomes and customer value. Support opportunity qualification and sales strategy development. Respond to technical requirements, proposals, and customer inquiries. Develop trusted advisor relationships with customer decision makers and technical stakeholders. Partner closely with sales, product management, engineering, marketing, and services organizations. Maintain expertise in HP solutions, industry trends, c

C
📍 New York New York United States, United States
✓ Quality checkedCompany trend +800%

We are seeking an experienced Quantitative Developer to join our Markets Quantitative Analytics team, partnering closely with Quantitative Analysts, Traders, and Technology professionals to build the next generation of pricing, risk, and analytics platforms. This is a hands-on technical role for a highly skilled software engineer with a passion for quantitative finance. You will be responsible for designing and delivering high-performance, scalable solutions that support front office trading businesses across asset classes. The role offers the opportunity to work on complex quantitative challenges, modern engineering practices, and large-scale distributed systems while helping shape the strategic direction of Citi's quantitative technology platform. Successful candidates will combine strong software engineering expertise with an understanding of quantitative methodologies and financial markets, translating sophisticated mathematical models into robust, production-grade solutions. Key Responsibilities Design, develop, and maintain high-performance pricing, risk, and analytics libraries used across Global Markets. Partner with Quantitative Analysts to transform research models and prototypes into scalable, production-quality software. Build and optimize quantitative applications using modern C&#43;&#43; and Python, applying strong software architecture and engineering principles. Own the full software development lifecycle, including requirements gathering, design, implementation, testing, deployment, and ongoing support. Drive engineering excellence through CI/CD adoption, automated testing, code reviews, and software quality best practices. Develop and maintain market data platforms and data pipelines supporting analytics, pricing, and risk workflows. Work with infrastructure teams to leverage distributed computing, cloud technologies, and scalable arc

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