57 Senior Systems Administrator jobs in the United Kingdom

Are you a Linux-savvy problem solver who thrives in a fast-paced IT environment?
Do you enjoy managing servers, securing systems, and supporting technical teams?
If YES, you could be the Systems Administrator  we’re looking for!

Why join us?

• Competitive salary
li>Hybrid working flexibility
• Career development opportunities
• Member of an Employee-owned trust
• Training and development support
• Work with cutting-edge infrastructure and automation tools

What will you be doing?

• Manage Linux and Windows VMs (OVS/KVM), backups, and disaster recovery
• Use Oracle Database management System
• Apply OS and security patches across customer estates
• Monitor system performance and respond to alerts
• Support software engineering teams and troubleshoot server issues
• Use tools like Nagios, Jira, Confluence, and Bitbucket
• Collaborate with Hotline, MIS, and Information Security teams

What do we need from you?

• Bachelor’s degree in Computer Science or related field
< i>Extensive experience in Linux system administration and networking
• Strong knowledge of VM hosts, server hardware, and software inventory
• Familiarity with backup/DR, performance testing, and server hardening

Ready to be the backbone of our IT infrastructure and support systems?
Apply now to join Logistex as a Systems Administrator  and make a real impact!

Systems Administrator (HR)nLocation:

Headquarters, Ripley, DerbyshirenSalary:

Grade F Salary £37,280 - £41,771 per annumnVacancy Type:

Temporary until approximately February 2027 to cover maternity leavenHours:

37 hours per week, however you may occasionally need to work beyond normal office hours. Agile working arrangements can be discussed with the successful candidatenClosing Date:

05 October 2025 (midnight)nInterviews:

14 October 2025nAbout UsnAt Derbyshire Fire & Rescue Service, were more than an emergency servicewere a team of over 900 dedicated people working together to make Derbyshire safer every day. Whether its responding to emergencies, preventing incidents before they happen, or supporting our frontline teams behind the scenes, every role here makes a real difference.nWere proud to be one of the countrys top-performing fire and rescue services, recently rated

Good in 9 out of 11 areas

by His Majestys Inspectorate of Constabulary and Fire & Rescue Services (HMICFRS). This recognition reflects the professionalism, progress, and dedication of our people. We continue to strive to be an outstanding Service, and we know we have more to do.nAbout the RolenAre you a detail-oriented systems expert with a passion for improving HR service delivery? Were looking for a

Systems Administrator (HR)

to join our team.nYoull be responsible for administering, developing, and maintaining the HR database and associated systems, ensuring data accuracy, security, and compliance with Data Protection legislation. Your work will directly support strategic decision-making and operational efficiency across the Service.nKey Responsibilities:nConfigure, test, and maintain HR systems, including user setup, documentation, and training plans.nManage system updates and improvements, ensuring accurate records and effective governance.nMaintain system security and access controls, including self-service functionality.nValidate data quality across workflows, reports, and interfaces.nProduce and present reports to support workforce planning and management decisions.nTroubleshoot system issues and liaise with providers to ensure minimal disruption.nDeliver training and create user guides to support system users.nSupport departmental processes including pay awards, contractual changes, and leave calculations.nDrive continuous improvement through system functionality development and automation.nProvide statistical analysis and reporting to support organisational planning and performance.nAct as a subject matter expert on HR systems, offering guidance and impact analysis.nRequired Qualifications and ExperiencenWere looking for someone with:nKnowledge of management information systems and data structures (HR related).nExperience in system administration, user management, and configuration.nProven ability to test systems and databases effectively.nSkills in creating training materials and delivering system-related training.nAdvanced Microsoft Excel skills and experience in data analysis and reporting.nA problem-solving mindset with a focus on continuous improvement.nGCSEs in Maths and English (Grade A-C / Level 4+) or equivalent.nBTEC/NVQ Level 3 in Business and Administration or equivalent experience.nWhat We Offer in ReturnnWe believe in rewarding our people with more than just a salary. Heres what you can expect when you join us:nFlexible working hours.nAgile working (60% office based).nFamily friendly policies.nAnnual Leave entitlement of 27 days, increasing to 32 days after 5 years service.nFree, secure on-site car parking.nHealth & wellbeing services, including free access to gyms at Derbyshire Fire & Rescue Service locations.nEmployee discount scheme (Boost) and eligibility to apply for Blue Light Card.nEmployee support networks.nEnhanced Maternity Pay (subject to meeting eligibility criteria).nOccupational Sick Pay subject to length of service, increasing up to 6 months full & 6 months half after 5 years service.nOngoing training and development opportunities.nEligibility to join the Local Government Pension Scheme / Firefighters Pension Scheme with generous employer contributions.nEligibility to join Additional Voluntary Contributions (AVC) offering highly beneficial tax advantages.nTo ApplynIf you feel you are a suitable candidate and would like to work for Derbyshire Fire and Rescue Service, please click apply to be redirected to their website to complete your application.nWe are a Disability Confident employer committed to equality and fairness at work. Applications are encouraged from all diverse communities. Under the Disability Confident scheme, we will offer an interview to a fair and proportionate number of applicants with a disability that meet the essential criteria for the role.nDerbyshire Fire and Rescue Services recruitment and selection procedures reflect our commitment to safeguarding and promoting the welfare of Adults, Children and Young People. All staff are expected to share this commitment.nPlease note that, due to the nature of security checks undertaken, applicants must have 3 years continuous residency in the UK up to the date of the application and Home Office approval for indefinite leave to remain within the UK.

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Finance Systems Administrator
Location: London
Contract: Temporary (3-months initial)
Rate: 30.00 per hour umbrella // 26.94 per hour PAYE inclusive // 24.04 per hour PAYE exclusive
Start Date: ASAP
Working Arrangements: Hybrid
Contact: (url removed)

Job Description
Service Care Solutions are recruiting for a Finance Systems Administrator on behalf of a Local Authority in London to join the team on a temporary basis. The postholder will play a key part in managing and improving core finance systems, ensuring processes are robust, secure, and efficient.

The main systems administered include e5 Financials (finance ledgers) and Civica WebPay2 (income management). The team is also working towards implementing a new finance system, OneCouncil by TechnologyOne, offering the opportunity to contribute to a major system change project.

Key Responsibilities

• Ensure finance systems are secure, well-governed, and support accounting standards.
• Maintain robust and efficient finance system processes.
• Contribute to finance system projects and the development of new processes.
• Complete business-as-usual tasks (BAU), including reconciliations and issue resolution.
• Support system users through training activities and helpdesk support.
• Collaborate with Finance teams and wider Council departments on system developments.
• Troubleshoot system issues within service desk KPIs.
• Contribute to business intelligence development and data administration.
• Assist in preparing for and supporting the implementation of the new finance system (TechnologyOne).
• Ensure compliance with Council policies, GDPR, Health & Safety, and other regulatory requirements.

Candidate Criteria

• Part-qualified CCAB/CIMA as a minimum
• Experience of working in a technical/systems based finance role supporting development and usage of financial systems
• Experience of providing accurate data and reporting for decision making
• Experience of working in a Local Authority finance environment is preferred
• Great communication skills with the ability to work well on own initiative as well as part of a team

If you are interested in the role, or know of anyone who may be, please contact Greg at Service Care Solutions on (phone number removed) or email (url removed)
Service Care Solutions also offers a 250 referral bonus! So, if you know of anyone who would be perfect for this position and they are placed into work, you will receive 250 for the referral once their probationary period has been completed.

IT Systems Administrator
Based in the City of London | On-site, Monday to Friday
Salary: 30,000 - 55,000 Dependent on Experience
Ref: J13007

* Please note sponsorship is not available now or in the future.

A dynamic, data-driven organisation and global leader in sports trading is on the lookout for a proactive and hands-on IT Systems Administrator to help support and evolve their mission-critical infrastructure.
As part of a small, highly collaborative IT team, you'll play a hands on role in ensuring system reliability, security, and performance across a complex environment. You'll be involved in a wide range of responsibilities, including:

Maintaining the infrastructure including the farm of on-site and off-site servers
Monitoring and maintaining the in-house software applications
Managing the Microsoft Windows universe
Administering Active Directory and Group Policy
Managing storage systems, including NAS and iSCSI

Technical Experience:
Experience of system administration in a Microsoft Active Directory environment
Juniper Networking experience
Working knowledge of SQL, scripting languages (e.g. Powershell), HTML and web technologies
Exposure to Hyper-V virtualisation
Solid hardware experience, e.g. with building custom machines
Some programming experience is desirable

This is a genuinely exciting opportunity to join a company where technology is at the heart of everything they do. If you're looking for a role where you can be truly hands-on, with no red tape, no unnecessary silos, and the chance to get involved across the board, then this could be your perfect next move.

Get in touch today to find out more!

Alternatively, you can refer a friend or colleague by taking part in our fantastic referral schemes! If you have a friend or colleague who would be interested in this role, please refer them to us. For each relevant candidate that you introduce to us (there is no limit) and we place, you will be entitled to our general gift/voucher scheme.
Datatech is one of the UK's leading recruitment agencies in the field of analytics and host of the critically acclaimed event, Women in Data. For more information, visit our website: (url removed)

Job Title: IT Systems Administrator

Salary: £32,000 – £34,000

Location: Hitchin

Hours: Monday to Friday 9.00 – 5.00 pm plus requirement on a rotational basis to work an early shift from 6am – 2pm and provide evening out of hours up to 11pm- latter attracts additional compensation.

Are you an experienced IT all-rounder looking to take the next step in your career?
My client is seeking a proactive and hands-on IT Systems Administrator to join their dynamic team, supporting a wide range of client environments. This is your chance to contribute to a growing tech business, take ownership of diverse IT challenges, and accelerate your professional development.

Why Join my client?

•  Career Growth: Take the lead on infrastructure support and technical projects, with continuous investment in your personal and professional development.
• Varied Role: You'll be involved in everything from day-to-day support to long-term system improvements and cloud technology deployments.

Key Responsibilities:

• Administer, monitor and support hardware, software and cloud-based systems
• Manage Active Directory, Azure, Office 365, and related services
• Provide remote and on-site IT support to clients, with clear communication
• Perform proactive system maintenance, backups, and recovery operations
• Collaborate on technical projects and contribute to service improvements
• Troubleshoot and resolve issues via ticketing systems

About You:

• A wealth of experience in IT infrastructure support
• Confident working with Windows OS, Azure/365, Exchange, AD, SQL, IP networking
• Skilled in scripting (PowerShell), ticketing systems, and RMM tools
• Strong communicator, customer-focused, and solutions-driven
• Full UK driving licence and access to a car for site visits

What’s in It for You?

• Flexible hybrid working after completion of probation
• Career progression & funded training opportunities
• 20 days holiday + bank holidays (increasing with service)
• Private medical insurance & death in service (post-probation)
• Free on-site parking

Thank you for your interest in this vacancy, which is being advertised by Smart10 Recruitment Group, who are acting as an employment agency / business. Your application will be considered in competition with others, and we will contact you within 3 working days if you have been shortlisted.
Smart10 is a multi-award-winning specialist recruitment consultancy focused on the supply of temporary, contract and permanent placements across a select group of business sectors. In order to keep up to date and search for all our active jobs, please visit our website, like us on Facebook and follow us on Instagram or LinkedIn. Please refer to Smart10’s Privacy Policy as to how we hold your data.

SDL Solutions Limited is seeking an experienced IT Systems Administrator to join an IT Managed Services provider based in Hertfordshire.

Due to continued business growth, they are looking for a senior IT Systems Administrator. This varied role in the technical support team will suit someone who is personable, with a minimum of five years’ experience in the main areas of IT infrastructure support, perhaps as part of an internal IT department because a broad range of technical knowledge is required. The ability to take ownership, logically approach troubleshooting and provide a high level of attention to detail in their work is essential as each team member is responsible for resolving the support issues they pick up.

You will need to be a great team player, with a commitment to the success of the company, and someone who is a positive person to be around. Candidates must live locally, within a 15-mile radius of Stevenage.

Main duties and responsibilities

• Administering, monitoring and supporting client hardware, software, IT systems and infrastructure.
li>Providing reactive support, troubleshooting problems, implementing emergency fixes and determining longer-term remedial actions.
• Configuring, reprovisioning and onboarding devices for clients.
• Administering AD, Azure, 365 and other cloud services.
• Scheduling and performing proactive system maintenance.
• Analysing systems and making recommendations to improve performance.
• Performing server backup and recovery operations and restarting systems following outages.
• Liaising between users, external suppliers and other members of the team.
• Recording support activities via the ticketing system and communicating progress back to the team.
• Responding promptly to queries and requests from clients that come in via phone, email or online chat.
• Keeping clients updated with progress if an issue cannot be resolved straight away.
• Communicating and explaining technical information clearly to a non-technical audience.
• Keeping process documentation and client information up to date.
• Onsite visits to clients for issues that cannot be resolved remotely.
• Configuring and provisioning IT environments for new clients.
• Involvement in technical implementation projects from planning to deployment.

General requirements

• Ensuring all responsibilities are met in accordance with company procedures.
• Understanding the need for confidentiality when dealing with both internal and external information.
• Flexibility to travel to client sites (UK only).
• Flexibility to work outside of or more than standard hours when necessary to achieve objectives required.
• Sound knowledge of the company’s service offering specific to this role.

Commutable from: - Welwyn, WGC, Hatfield, St Albans, Hitchin, Stevenage, Potters Bar, Letchworth, Baldock, Royston, Sandy, Ware, Hertford, Enfield, Hoddesdon, Broxbourne, Luton, Cambridge, Bedfordshire

Buzzwords: - IT Admin, 1st Line Support, 2nd Line Support, 3rd line Support, Desktop Support, Networking, Technician, Helpdesk, IT Support Administrator, Server, Active Directory (AD), Exchange, Virtualisation, Azure, Routers, Firewalls, Troubleshooting, VMWare, Hyper-V, Office 365, SQL, MCSA, MCSE, MCITP, MCDST, MCP, MTA, MCTS

Salary: - £32,000 – c£36,000 (DOE) + Benefits

IT Systems Administrator – Hertfordshire

Role: Graduate Systems Coordinator  

Salary: Competitive, Good Benefits & 10% Bonus

Location: Hybrid – Three Days Office/Site-Based & Two Days WFH; includes regular travel to schools

At Impact Food Group , we’re more than a school caterer. We’re driven by creating a positive food culture and helping more students eat better food. Making a positive social impact is at the centre of our identity. We tirelessly learn, develop and make improvements in every way, every day.

Delivered by our distinct and industry leading brands; Innovate , Hutchison , Cucina  and Chapter One , we cater for over 550,000 students,  operating more than 800 schools with growth each year.

We are passionate about creating exciting and student-friendly food experiences, and we need a talented Menu Manager to help us drive engagement across our digital platforms.

Role Responsibilities Include:

Menu & Recipe Management

• Create, manage, and retire menu cycles within the Fourth StarChef system in alignment with seasonal updates, campaigns, and operational schedules.
li>Ensure all recipe data is accurately entered and reflects agreed portion sizes, allergens, nutritional content, and method steps.

Ingredient & Product Management

• Create and maintain accurate ingredient records within StarChef, ensuring alignment with procurement specifications and allergen legislation.
• Collaborate with the procurement and supply chain teams to reflect up-to-date product codes, pricing, and supplier details.

Data Analysis & Reporting

• Use Fourth Analytics to generate reports on menu performance, costings, ingredient usage, and GP performance.
• Identify trends and opportunities for optimisation in recipe design, portion control, and supply chain efficiency.

Cross-Departmental Collaboration

• Act as a liaison between the Food Development team (chefs, NPD, nutrition) and Business Support (finance, operations, IT).
• Support testing and rollout of new menu items, including test uploads, UAT, and team training where required.

About You

Qualifications/Skills & Required Experience:

Proficient in Fourth Hospitality / Menu Manager.
Strong understanding of menu engineering, recipe costing, and inventory management.
Knowledge of allergen and nutritional regulations.
Strong communication and collaboration skills.
Ability to work under pressure and meet menu launch deadlines.
Experience in hospitality or foodservice menu management.
Hands-on experience with Fourth or similar hospitality management software.
Knowledge of POS systems and integration processes.
Basic understanding of food costing and recipe development
Proficiency in Excel or Google Sheets for reporting.

What We’d Love to Give You

Competitive salary
25 days paid annual leave plus bank holidays.
Company pension scheme.
Access to our extensive online Learning platform and development opportunities
An employee wellbeing platform.
IFG rewards for highstreets discounts.
Annual Summer Party with company awards.

Workday Systems Administrator - London

70,000 - 80,000 PA

A well-established organisation undergoing a significant HR systems transformation is seeking an experienced HR Systems Manager with demonstrable expertise in Workday and UKG. This is a pivotal role within the wider digital transformation strategy and offers an exciting opportunity to lead the ongoing development, optimisation and support of the organisation's HR technology landscape.

The successful candidate will act as the primary point of contact for all Workday and UKG activities, ensuring seamless integration and operational efficiency across HR and workforce management platforms.

Key Responsibilities

* Serve as the internal subject matter expert for Workday and its integrations

* Configure and maintain Workday modules (HCM, Payroll, Recruiting, Financials)

* Manage business processes, security roles, integrations and reporting

* Monitor system performance and ensure data integrity

* Act as the internal subject matter expert for UKG Time and Attendance

* Liaise with the UKG managed service provider to ensure accurate and timely support

* Oversee configuration and validation of time rules, pay rules, shift differentials and holiday calendars

* Support complex scheduling scenarios (rotating shifts, flex time, on-call arrangements)

* Conduct regular audits and reconciliations between UKG and Workday

* Troubleshoot timecard issues, accrual discrepancies and integration errors

* Train HR, managers and employees on system functionality and self-service tools

* Develop and maintain user guides and training materials

* Gather business requirements and implement system changes

* Participate in release testing and deployment for both Workday and UKG

* Coordinate enhancements and configuration updates with the UKG managed service provider

* Manage user roles and access controls across systems

* Ensure compliance with GDPR, Working Time Directive and internal audit requirements

* Support and monitor integrations between Workday, UKG and other enterprise systems

* Develop and maintain reports and dashboards for workforce analytics

Requirements:

* Proven experience managing or administering Workday systems

* Ideally hands-on experience with UKG Time and Attendance

* Strong understanding of timekeeping rules, scheduling logic and compliance requirements.

* Excellent analytical, problem-solving and communication skills

* Experience working with third-party providers, managed services and vendor coordination.

* Strong understanding of HR operations and processes

4 days per week onsite - dropping to 3 once passed probation

Excellent opportunity for a passionate IT Systems Administrator to join a brilliant client's team in the city of London. The successful candidate will need to have at least 2 years commercial experience and will be able to assume responsibilities and show that they can be relied upon and have the ability to grasp wider concepts. You should be comfortable to come to grips with any new technology that is thrown at you. This is a fantastic opportunity to join a small team of very talented individuals who are working directly on a trading platform.

This is an office-based role in central London so the successful candidate will need to be comfortable working from the office full time. As well as very competitive salaries, our client offers a comprehensive benefits package.

Skills and Experience required:

• Networking experience (Juniper primarily)
• Working knowledge of SQL, scripting languages (e.g. PowerShell), HTML, and web technologies
• Exposure to Hyper-V virtualisation
• Solid hardware experience, e.g. with building custom machines
• Some programming experience is desirable
• Well-organised. You should enjoy proper planning and having things in order, both at work and in your daily life.
• Attention to detail
• Excellent communication skills in both verbal and written English
• Naturally, an intimate understanding of computer technology and an intrinsic drive to develop your knowledge in the field
• Willingness to support the business that operates 24/7
• Strong interpersonal skills and a mature, responsible attitude

Responsibilities:

• Maintaining infrastructure including our farm of on-site and off-site servers
• Monitoring and maintaining our in-house software applications
• Managing the Microsoft Windows universe
• Administering Active Directory and Group Policy
• Managing storage systems, including NAS and iSCSI

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.