Top companies hiring for Linux Systems Administrator jobs

DXC Technology (NYSE: DXC) DXC Technology is a Fortune 500 global IT services leader. Our more than 130,000 people in 70-plus countries are entrusted by our customers to deliver what matters most. We use the power of technology to deliver mission critical IT services across the Enterprise Technology Stack to drive business impact. DXC is an employer of choice with strong values, and fosters a culture of inclusion, belonging and corporate citizenship. Learn more about the DXC story at www.dxc.com.

A job you love to talk about. With 24 million customers across six countries, Sky is Europe’s leading media and entertainment company and is proud to be part of the Comcast group. Our 32,000 employees help connect our customers to the very best entertainment, sports, news, arts and to our own local, original content. Our technology allows Sky customers to watch what they want, when they want, how they want and connects millions of people to content they love. And our online streaming service, NOW, brings viewers all the enjoyment of Sky with the flexibility of a contract-free service. We also believe that a company of our scale has a responsibility that goes beyond our business, and into the community. We recently announced a series of commitments to help tackle racial injustice and improve diversity and inclusion. To ensure the commitments are delivered, Sky will invest £10million per year across its markets for each of the next three years. Want to know more about our culture? Search #LifeAtSky on social media.

Oracle is the world’s leading provider of business software. But you probably already knew that. With a presence in over 175 countries, we are one of the biggest technology companies on the planet. What you might not know is that we are leading a cloud revolution. We’re using emerging technologies like AI, machine learning, and blockchain to solve critical real-world problems. From advancing energy efficiency to reimagining online commerce, the work we do is not only transforming the world of business—it’s helping governments, powering nonprofits, and giving billions of people the tools they need to outpace change and make a difference.

We use technology to make happier lives. Fujitsu is a diverse, global organization with over 150 000 employees in 100 countries. Since being founded in Japan in 1935, we have continued to demonstrate our technological prowess and persistent pursuit of innovation. Fujitsu touches the lives of millions of people every day. Using a wide portfolio of trusted technology services, solutions and products, we work with our customers to co-create solutions that help them on their journey to enterprise-wide digitalization. At the same time, we are using technology and working with our customers and wider ecosystem partners to help solve social issues. To do this, we need people who share our vision. People who recognize the vital role technology plays in making the world a better place. People who will transform the way the world lives and works. Fujitsu is where careers are made, and where we will transform futures together Fujitsu is committed to the development of a diverse workforce.

At ServiceNow, our technology makes the world work for everyone, and our people make it possible. Our cloud‑based platform and solutions deliver digital workflows that create great experiences and unlock productivity for employees and the enterprise. With more than 8,400 customers, we serve approximately 86% of the Fortune 500®, and we're proud to be a Fortune 100 Best Companies to Work For®. From Fortune. ©2025 Fortune Media IP Limited. All rights reserved. Used under license.

Influencing the world since 1583. Our people have explored space, revolutionised surgery, won Nobel Prizes, published era-defining books, paved the way for life-saving medical breakthroughs and laid the foundations for solving the mysteries of the universe. To maintain our success as one of the world's leading universities, we recruit the best people to a variety of roles each year. Whether you work in our research-led community of international academics or our team of talented and committed professional support staff, you’ll thrive in a stimulating, friendly and diverse environment that nurtures talent and rewards success.

Amazon Web Services (AWS) provides the world’s most comprehensive and broadly adopted cloud platform, offering more than 200 technology services worldwide. Millions of customers—including the fastest-growing startups, largest enterprises, and leading government agencies— rely on AWS to lower costs, become more agile, and innovate faster. Our global scale and rapid pace give you more opportunities to think big, follow your curiosity, and collaborate with a brilliant team. You’ll have the autonomy to pursue bold ideas, and an inclusive team of experts to help turn ideas into real-world innovation.

At Next we never underestimate what you can do. Bring your energy, play to your strengths and never shy away from change. Push yourself and back others. Make things happen that will be bigger and better than before. Working for one of the UK’s biggest retailers is everything you could imagine, and so much more. Whether you take a role making furniture with our lively warehouse team or join our team of superhuman developers and tech engineers, you’ll be rubbing shoulders with some of the most talented people in the country, who not only work hard but play hard too. Let's take it on.

UCL is London’s leading multidisciplinary university, with a community of approximately 50,000 students and staff. Founded in 1826 in the heart of London, UCL was the first university in England to welcome students of any class or religion, and the first to welcome women on equal terms with men. We are a research-intensive university and a member of the UK’s Russell Group. We are a diverse community with staff from across the world, and are the only university to hold both a Silver Athena SWAN award and a Race Equality Charter Bronze Award. Join us to transform how the world is understood, how knowledge is created and shared and the way that global problems are solved.

When people connect, there’s no limit to the good they can do. We’re one of the world’s leading communications services companies. The solutions we sell are integral to modern life. Our purpose is as simple as it is ambitious: we connect for good. There are no limits to what people can do when they connect. And as technology changes our world, connections are becoming even more important to everyday life. Today, that’s truer than ever. The connections we make are helping solve the world’s biggest challenges such as the global pandemic, climate change and cyber security. Through the power of technology, we’re supporting customers to live, work and play together better. We connect for good.