Top Companies Hiring for Network Administrator Jobs

The US Department of the Army has its marching orders. One of the three military departments (along with the Air Force and Navy) of the US Department of Defense, the Army provides ground-based military forces to deter and fight wars and protect the security of the US. The army has more than 675,000 soldiers, including active duty soldiers (nearly 75%) and reservists (Army National Guard and Army Reserves). Army personnel are deployed in about 80 countries. The Army operates about 40 forts throughout the US and has bases in Africa, Europe, Japan, the Middle East, and South Korea.

To be a marine, you gotta have faith. The United States Marine Corps' motto, Semper Fidelis, Latin for always faithful, reflects service members' dedication to each other, their corps, and their country. The Marine Corps has two missions: make Marines and win battles. The military branch operates artillery, aviation, expeditionary, and infantry units. It has four divisions and works out of about 35 bases and stations in the US and Japan. It is the smallest of the military branches with just more than 202,000 active duty personnel and some 40,000 reservists. The Marine Corps traces its roots to the American Revolution and 1775, when the Continental Marines was formed.

GDIT is a global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber and application development.

America’s Navy is the most versatile branch of the military, forging defense on land, in the air, and at sea. With opportunities across the globe and a commitment to serve the greater good, the Navy offers a life of fulfillment, advancement, and innovation to every Sailor.

MANTECH was founded in 1968 to provide advanced technological services to the U.S. Government. We began with a single Navy contract to develop war-gaming models for the submarine community. Over the years, our government's technology needs have increased dramatically in scope and sophistication, and we have grown to meet that challenge. For 5 decades, we kept a careful eye on where emerging technologies were taking the government, and we developed the resources to master those technologies—by staying close to our customers and anticipating their needs, hiring more than 9,000 talented professionals to propel us into the future, and acquiring companies with proven capabilities. Today, we are a multibillion-dollar public company that provides the innovation, adaptability and critical thinking our government needs for success in defense, intelligence, law enforcement, science, administration, health and other fields—throughout the nation and in many countries around the world. We are now applying the lessons learned in the unforgiving arena of national security to help the private sector protect networks and critical information.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 48,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.leidos.com.

SAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

Tata Consultancy Services is an IT services, consulting and business solutions organization that has been partnering with many of the world’s largest businesses in their transformation journeys for over 50 years. TCS offers a consulting-led, cognitive powered, integrated portfolio of business, technology and engineering services and solutions. This is delivered through its unique Location Independent Agile™ delivery model, recognized as a benchmark of excellence in software development. A part of the Tata group, India's largest multinational business group, TCS has over 528,000 of the world’s best-trained consultants in 46 countries. The company generated consolidated revenues of US $22.2 billion in the fiscal year ended March 31, 2021 and is listed on the BSE (formerly Bombay Stock Exchange) and the NSE (National Stock Exchange) in India. TCS' proactive stance on climate change and award-winning work with communities across the world have earned it a place in leading sustainability indices such as the MSCI Global Sustainability Index and the FTSE4Good Emerging Index. For more information, visit www.tcs.com

Charter Communications, Inc. (NASDAQ: CHTR) is a leading broadband connectivity company and cable operator with services available to more than 57 million homes and businesses in 41 states through its Spectrum brand. Over an advanced communications network, the company offers a full range of state-of-the-art residential and business services including Spectrum Internet®, TV, Mobile and Voice. For small and medium-sized companies, Spectrum Business® delivers the same suite of broadband products and services coupled with special features and applications to enhance productivity, while for larger businesses and government entities, Spectrum Enterprise provides highly customized, fiber-based solutions. Spectrum Reach® delivers tailored advertising and production for the modern media landscape. The company also distributes award-winning news coverage, sports and high-quality original programming to its customers through Spectrum Networks. More information about Charter can be found at corporate.charter.com.