Senior Systems Administrator
Senior Systems Administrator

Senior Systems Administrator

London Full-Time 43200 - 72000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Join our team to manage and upgrade IT systems for over 200 employees in London.
  • Company: Reward is a leading company focused on empowering employees through seamless IT support.
  • Benefits: Enjoy flexible working, generous leave, private healthcare, and fun company events.
  • Why this job: Be part of a dynamic team that values collaboration and innovation in IT solutions.
  • Qualifications: Strong knowledge of network technologies and experience with Windows Server and troubleshooting required.
  • Other info: Opportunity for growth and mentorship within a supportive team environment.

The predicted salary is between 43200 - 72000 £ per year.

This job is brought to you by Jobs/Redefined, the UK\’s leading over-50s age inclusive jobs board.

Senior Systems Administrator

Department: Technology

Employment Type: Permanent – Full Time

Location: London

Description

The System Administration team (Infra-SysOps or SA) is responsible for maintaining, upgrading, and managing Reward\’s software, hardware, and IT networks, including data center and office LANs. At the heart of this role is a commitment to ensuring the seamless daily IT operations of over 200 employees .

A key focus of this role is to minimize IT friction for London-based staff, ensuring they can work efficiently without unnecessary blockers.

Success in this position requires proactiveness, resourcefulness, critical thinking, and strong communication skills . The ideal candidate should be able to diagnose and resolve issues quickly while providing clear updates to stakeholders. Additionally, they must be patient and adaptable , effectively communicating with interdisciplinary teams and mentoring junior and mid-level System Administrators within the team.

The ultimate goal is to ensure high availability, stability, and efficiency across Reward\’s IT infrastructure, maintaining SLAs and minimizing downtime. Since our employees are our greatest asset, this role is essential in ensuring they feel IT-empowered and supported to perform at their best.

Key Responsibilities

  • Onsite London office 3 days per week (rota with other team members)
  • Occasionally may need to travel to Belfast office (adhoc support when required)
  • Server support – Travel to Datacentre to install new, manage, upgrade break fix Production Server services onsite (Central London) carry out regular BAU monitoring and remediation works
  • IT Support (ZenDesk) – Proactive daily monitoring and actioning of tickets is vital to smooth IT systems and processes
  • Providing proactive day-to-day management and support for Internet-related infrastructure, including servers, routers, switches, VPN tunnels, firewalls, mobile devices, tablets, wireless internet (wireless access points), and backup systems, within mission-critical environments.
  • Managing, tracking, and troubleshooting issues, change controls, bespoke project rollouts, and live fault escalations
  • Team player – Support and knowledge share with Junior or Mid-level SysAdmins
  • Release management & patching practices need to be followed and adhered to
  • Staff assistance and support for all IT system-related queries (ZenDesk IT Helpdesk system)
  • Maintaining a high level of availability of services and minimizing the risk of exposure to system downtime through continual monitoring of key systems
  • Improving process development, documentation, and knowledge dissemination
  • Provision of out-of-hours support, with potential for on-call at some point
  • Improving systems & automating repetitive jobs
  • Liaise closely with internal/external contacts to monitor and maintain current infrastructure while driving new technical projects forward
  • Liaising with suppliers and ordering hardware, software, and consumables when required
  • Information security – Assisting in ensuring the security of all IT systems in compliance with our PCI-DSS & ISO27001 Information Security certifications

Skills Knowledge and Expertise

  • Good knowledge of network routing, load balancers, and switches, Intel-based server hardware, TCP/IP, DNS, and other Internet-related technologies: DHCP, VLANs, VPNs, Firewalls, IPS/IDS
  • The ability to support Windows Server 2019, 2022, Windows 10-11 desktop platforms to a very good level; Mac OSX is also desirable experience
  • Excellent hardware, technical troubleshooting, and support knowledge – Laptops, Desktops, Servers, Firewalls, Load balancers, Switches, NAS backups, etc.
  • Experience with network routing, load balancers, and switches (Data centre & Office-based setups)
  • Experience building, deploying, implementing, and troubleshooting Servers, SANs, and hardware devices
  • Experience working in pressure Server failover and backup restore situations with many moving parts and factors, out-of-the-box thinking at times
  • Excellent communication, interpersonal skills, problem-solving skills with strong attention to detail
  • Initiative and ability to work in high change environments
  • Excellent written and verbal communication (to technical and business)
  • Strong proactive approach to updating documentation
  • Strong team and collaboration skills
  • Excellent work and task planning abilities, including time management
  • Able to cope with many different projects and initiatives simultaneously, and to deliver under pressure
  • Able to work autonomously and learn quickly
  • Good problem-solving skills
  • Willing to learn new skills and happy to take on new challenges

Benefits

  • Annual Leave: 25 days + bank holidays
  • Ability to buy and sell holiday days as well as the ability to bank days (tenure dependent)
  • Flexible working options: we are operating a hybrid working model with 3 days a week from the office
  • Pension: Hargreaves Lansdown – 6% matched contribution
  • Employee share scheme
  • Generous family-friendly cover
  • Private healthcare – Bupa
  • Income protection
  • Critical illness cover
  • Life insurance cover
  • Dental cover
  • Optical cover
  • Yulife app for access to employee wellbeing and discounts
  • Perks at Work, cashback/discount shopping site
  • Employee referral scheme
  • Salary sacrifice program which includes cycle to work scheme, electric car scheme, and season ticket loans
  • Volunteering program
  • Company events i.e. Christmas party, all-company event, and other social/hosted events during the year (we have an active social committee!)
  • Team socials

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Senior Systems Administrator employer: Reward

At Reward, we pride ourselves on being an exceptional employer, offering a vibrant work culture in the heart of London that fosters collaboration and innovation. Our commitment to employee growth is evident through our mentoring programs and diverse training opportunities, ensuring that every team member can thrive in their role. With generous benefits including flexible working options, private healthcare, and a supportive environment, we empower our employees to achieve their best while enjoying a fulfilling work-life balance.
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Contact Detail:

Reward Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Systems Administrator

✨Tip Number 1

Make sure to highlight your experience with Windows Server and network technologies in your conversations. Being able to discuss specific scenarios where you've successfully managed server environments or resolved complex networking issues will demonstrate your expertise.

✨Tip Number 2

Showcase your problem-solving skills by preparing examples of how you've handled high-pressure situations in the past. This could include instances where you had to quickly diagnose and fix a critical issue, as this role requires quick thinking and adaptability.

✨Tip Number 3

Emphasize your communication skills during discussions. Since you'll be working closely with interdisciplinary teams and mentoring others, being able to convey technical information clearly and effectively is crucial.

✨Tip Number 4

Familiarize yourself with the company's IT infrastructure and any recent projects they have undertaken. This knowledge will not only help you ask informed questions but also show your genuine interest in the role and the organization.

We think you need these skills to ace Senior Systems Administrator

Network Routing
Load Balancers
Switches
Intel-based Server Hardware
TCP/IP
DNS
DHCP
VLANs
VPNs
Firewalls
Windows Server 2019
Windows Server 2022
Windows 10-11
Mac OSX
Technical Troubleshooting
Server Deployment
SANs
Backup and Restore
Documentation Skills
Problem-Solving Skills
Communication Skills
Time Management
Team Collaboration
Adaptability
Proactive Approach

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights relevant experience in systems administration, particularly with Windows Server and network technologies. Use keywords from the job description to demonstrate your fit for the role.

Craft a Strong Cover Letter: In your cover letter, emphasize your proactive approach and problem-solving skills. Mention specific examples of how you've minimized IT friction in previous roles and supported teams effectively.

Showcase Communication Skills: Since strong communication is key for this role, provide examples in your application that demonstrate your ability to communicate technical information clearly to both technical and non-technical stakeholders.

Highlight Team Collaboration: Discuss your experience working in teams, especially mentoring junior staff or collaborating on projects. This will show that you can contribute positively to the team dynamic at Reward.

How to prepare for a job interview at Reward

✨Show Your Proactiveness

Demonstrate your ability to take initiative by sharing examples of how you've proactively resolved IT issues in the past. Highlight situations where you anticipated problems before they escalated and took steps to mitigate them.

✨Communicate Clearly

Since strong communication skills are essential for this role, practice explaining complex technical concepts in simple terms. Be prepared to discuss how you would keep stakeholders updated on ongoing issues and resolutions.

✨Highlight Team Collaboration

Emphasize your experience working with interdisciplinary teams. Share specific instances where you mentored junior staff or collaborated with colleagues to improve IT processes and support.

✨Prepare for Technical Questions

Brush up on your knowledge of network routing, server management, and troubleshooting techniques. Be ready to answer technical questions that assess your expertise in Windows Server, firewalls, and other relevant technologies.

Senior Systems Administrator
Reward
R
  • Senior Systems Administrator

    London
    Full-Time
    43200 - 72000 £ / year (est.)

    Application deadline: 2027-04-20

  • R

    Reward

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