Senior Systems Administrator

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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 if 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 a smooth painfree IT systems and processes
• Providing proactive day to day management and support for Internet related infrastructure, including servers, routers, switches, VPN tunnels and personal VPN tokens, firewalls, mobile devices, tablets, wireless internet (wireless access points), and backup systems, within mission critical environments.
• Managing, tracking and trouble-shooting issues, change controls, bespoke project rollouts and live fault escalations
• Team player - Support and knowledge share to more Junior or Mid level SysAdmins
• Release management & patching practices need to be followed and adhered too
• Staff assistance and support for all IT system related queries (ZenDesk IT Helpdesk system)
• Maintaining a high level of availability of services and minimising 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 oncall at some point
• Improving system & 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 with 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 trouble shooting and support knowledge - Laptops, Desktops and 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 trouble shooting Servers, SANs, hardware devices
• Experience working in pressure Server failover and backup restore situations with many moving parts and factors, out of 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