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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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