OSI jobs in Arlington, VA

McLean, Virginia

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Today

At MITRE, your passion fuels work that impacts our nation and improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We're a nonprofit engineering, applied research, and advanced technology organization working in the public interest. With objectivity and integrity at our core, we lead federally funded research and development centers for U.S. government agencies - collaborating with industry and academia to deliver in

Full-time

USD 162,400.00 - 203,000.00 per year

Cyber Security Fusion Analyst

Fort Meade, Maryland

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Today

The Leidos Defense Group has an opening for a Cyber Security Fusion Analyst on the DISA GSM-O II program supporting Joint Force Headquarters DODIN at Fort Meade. Position Summary: GSM-O II provides network operations and cyber defense support to the Defense Information Systems Agency (DISA) in support of the DOD and COCOMs. In this role, you will provide support with incident handling, triage of events, network analysis, threat detection, trend analysis, metric development, and vulnerability i

Full-time

USD 107,900.00 - 195,050.00 per year

Network Engineer

Chantilly, Virginia

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Today

Leidos delivers solutions through the work of a diverse, dedicated team focused on our customers' success. We're looking for people who want to do work that matters, on a team that sticks around because the problems are worth solving. Our team is seeking an experienced and fully cleared Network Engineer to join our team in Chantilly, VA. The team is made-up of highly technical and motivated individuals. The engineer for this role will assist in troubleshooting complex problems and implementing c

Full-time

USD 107,900.00 - 195,050.00 per year

Digital Network Exploitation Analyst 1

Fort Meade, Maryland

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Today

Our Mission Statement At Aperio Global, we bring together experts in cybersecurity, AI, data analytics, and cloud technologies to solve complex national security challenges. We focus on work where our expertise creates the greatest impact. Our team includes technologists, Intelligence Community veterans, and security professionals who believe the best solutions come from collaboration, accountability, and technical excellence. From cyber operations and AI platforms to cloud-native software and

Full-time

NOC Engineer

Chantilly, Virginia

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Today

Leidos is seeking a reliable, detail-oriented NOC Engineer to join our Network Operations Center. You will serve as the first line of defense for network availability, performance, and stability. You will monitor systems, triage alerts, troubleshoot complex routing and hardware issues, and collaborate with cross-functional IT teams to resolve incidents swiftly. Primary Responsibilities include but are not limited to: Performing with the following duties: Real-Time Monitoring: Watch over networ

Full-time

USD 59,150.00 - 106,925.00 per year

Network Engineer

Camp Springs, Maryland

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Today

Unleash Your Potential At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer's success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. If this sounds like an environment where you can thrive, keep reading! Are you

Full-time

USD 107,900.00 - 195,050.00 per year

Network Engineer - riverbed

Chantilly, Virginia

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Today

Job#: 3053810 Job Description: Network Engineer - Riverbed Modeling SME Location: Chantilly, VA (Hybrid/Partial Remote) Role Overview We are seeking a highly technical Network Engineer with deep expertise in network architecture, modeling, and simulation. The ideal candidate will bring a strong commercial telecommunications or service provider networking background and hands-on experience using Riverbed Modeler (OPNET) to design, model, and analyze complex network environments. This role will

Easy Apply

Full-time

$95 - $110 per hour

PSA(Power System Application) Engineer - DTS (Dispatcher Training Simulator) - REMOTE

Remote

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3d ago

Role: PSA Engineer - DTS (Dispatcher Training Simulator)Location: REMOTEDuration: Long termJD:Administer and optimize Energy Management System (EMS) system through application configuration, tuning and security patching preferably on GE PowerOn Reliance (XA21) and/or AEMS . Platform Software, as well as EMS of any equivalent platforms from Siemens, OSI, ABB, Schneider etc. . Simulated RTU, Simulated IED, Console . ICCP, IEC, DNP3, Modbus, Data Modeling, XML/JSON . Proficient in both Linux and Wi

Easy Apply

Contract, Third Party

Depends on Experience

Senior Network Engineer

Lorton, Virginia

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Today

Senior Network Engineer Lorton, VA - On-Site Required TS/SCI The Defense sector at Leidos is seeking an experienced Senior Network Engineer to support a fast-paced Department of Defense (DoD) program supporting the Air Force Life Cycle Management Center (AFLCMC). The position supports the engineering, deployment, modernization, and sustainment of network infrastructure across multiple customer locations. The Senior Network Engineer will serve as a senior technical contributor responsible for

Full-time

USD 107,900.00 - 195,050.00 per year

Network Architect

Remote

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9d ago

TECHNICAL KNOWLEDGE AND SKILLS: Expert knowledge of Palo Alto Network Firewall, CloudFlare and, Prisma Cloud and Cisco ASA. Expert knowledge of F5 Load Balancers LTM. GTM, WAF,and AWS ELB. Advanced OSI layer 2 knowledge and practical experience, including various flavors of STP, ARP, QOS, etc. Comprehensive knowledge of OSI layer 3 networks and protocols, including broadcast, multicast, anycast concepts, routing, etc. Expert knowledge of various routing protocols (BGP, OSPF, EIGRP) and multi-ho

Easy Apply

Contract, Third Party

Depends on Experience

Network Engineer

Herndon, Virginia

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Today

Overview Network Engineer Herndon, VA TS/SCI with Poly At Bcore, our strength comes from how we deliver impact to the mission. Whether it's architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams. Our Mission Services division combines enterprise IT, cloud solutions, DevSecOps, systems engineering, software development, and operational support.Bcore accelerates d

Full-time

USD 170,000.00 - 185,000.00 per year

Technical Support Specialist II - Wed-Sat 10 AM - 9:00 PM

Remote

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Today

Ventus is an entity within Digi, a Business Unit that's an industry leader in IT networking innovations, leveraging technology to produce market-driving network solutions. Operating from over 20 years of experience and delivering secure enterprise class networks, Ventus develops cellular wireless and fixed line SD-WAN, Hybrid WAN, and Cellular WAN solutions for an expanding array of business connectivity applications. Position Technical Support Specialist II - Remote US location - Wed-Sat 10 AM

Full-time

USD 47,500.00 - 67,000.00 per year

Network Engineer- SME

Chantilly, Virginia

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Today

Job Description Network Engineer - SME This position requires an active TS/SCI with a Polygraph. The Network Engineer - Subject Matter Expert (SME) provides advanced technical leadership in the design, implementation, and optimization of complex network infrastructures. The SME collaborates with cross-functional teams to ensure secure, scalable, and resilient network solutions that align with organizational and mission-critical objectives. Compensation & Benefits: Estimated Starting Salary

Full-time

USD 200,000.00 per year

Network Engineer

Herndon, Virginia

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Today

Job Description We are seeking a talented and experienced Network Engineer with a specialized focus on Firewalls, particularly with expertise in CISCO, Palo Alto, and Netscaler firewall network devices and associated management software. You should have a deep understanding of network security principles, excellent problem-solving skills, and a proactive approach to maintaining and optimizing firewall infrastructure. You will also have a minimum of 11 years of experience. A bachelor's or master

Full-time

Cyber Security Analyst

Adelphi, Maryland

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Today

Ready to take your cybersecurity experience beyond routine alert monitoring? Leidos is seeking a Cyber Security Analyst to support the C5ISR Defensive Cyber Solutions Branch (DCSB) and help protect critical Department of War networks, systems, and data from sophisticated cyber threats. You'll join a high-visibility Security Operations Center (SOC) providing 24x7x365 defensive cyber operations, including continuous monitoring, threat detection, incident response, and vulnerability management. O

Full-time

USD 87,100.00 - 157,450.00 per year

Unified Communications Integration Engineer, Public Safety

Washington, District of Columbia

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Today

Join Axon and be a Force for Good. At Axon, we're on a mission to Protect Life. We're explorers, pursuing society's most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our customers, communities and each other. Life at Axon is fast-paced, challenging and meaningful. Here, you'll take ownership and drive real change. Constantly grow as you work

Full-time

USD 141,000.00 - 188,000.00 per year

Software Developer, Journeyman (Security Clearance Required)

Arlington, Virginia

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Today

ICF is actively recruiting for an experienced Software Developer to support the research and development of new cyber analytic capabilities that will help the US protect and defend its networks and critical information systems. This role will support a large federal cyber security analytic program. Your work will contribute to the knowledge of how cyber-attacks work, how vulnerabilities are exploited, and the way hostile cyber actors operate. We are looking for individuals that want to analyze a

Full-time

USD 98,614.00 - 167,644.00 per year

Software Developer, Journeyman (Security Clearance Required)

Arlington, Virginia

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25d ago

Full-time

USD 98,614.00 - 167,644.00 per year

System Test Engineer - Government

Reston, Virginia

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Today

About us One team. Global challenges. Infinite opportunities. At Viasat, we're on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We're looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team. What you'll do We have an exciting new opportunity for a System Test Engin

Full-time

USD 120,500.00 - 190,000.00 per year

Professional Services Engineer, 911 Systems (Remote)

Remote or Washington, District of Columbia

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Today

Full-time

USD 88,200.00 - 135,240.00 per year

OSI jobs in Arlington, VA 22203, USA