About the role
We are seeking a skilled Senior System Administrator to lead a team of experienced system administrators to support and enhance our hosted solutions across both private and public cloud environments. This role is essential in ensuring the availability, security, performance and compliance of hosted services against our published service levels and descriptions. The ideal candidate will bring experience in leading a team of professionals, a deep expertise in running complex IT environments and a passion for optimizing infrastructure to deliver world-class hosting solutions.
We’re passionate about helping our people grow. From day one, you’ll have access to mentoring and support from experienced colleagues who want to see you succeed. Whether it’s building new technical skills, exploring leadership opportunities, or shaping the next step in your career, we’ll give you the tools and encouragement to get there. This position recognises the strengths you bring today while providing clear opportunities to expand your impact as you progress.
Key responsibilities
Leadership
* Team Management including Task Allocation, coaching and performance reviews
* Assisting, training and mentoring team members to upskill and follow best practice
* Project leadership – Delivering small to medium technical projects
* Stakeholder communication – Bridging between technical and non-technical team as well as customers.
Infrastructure Management for Private and Public Clouds:
* Administer and optimize hosted solutions across private and public cloud platforms
* Design, implement, and maintain infrastructure to ensure scalability, performance, and reliability.
Ensure Availability and Performance:
* Maintain high availability of hosted services in order to meet SLAs
* Implement redundancy, disaster recovery, and failover mechanisms to minimize downtime
* Deploy and maintain monitoring solutions for both private and public cloud-hosted systems to identify and resolve issues proactively
* Analyse performance metrics and implement optimizations to ensure alignment with SLA requirements
Presentation Tier Administration:
* Manage and maintain Citrix NetScaler for load balancing, secure access, and application delivery
* Administer and maintain Citrix Virtual Apps, Remote Desktop Services and Azure Virtual Desktop to deliver hosted applications and ensure a seamless end-user experience.
Windows Server Administration:
* Deploy, configure, and manage Windows Server systems in private and public cloud-hosted setups
* Configure and troubleshoot Group Policy Objects (GPOs) to enforce security and operational policies
* Perform advanced troubleshooting to quickly resolve issues affecting hosted environments.
Security and Compliance:
* Implement and maintain robust security protocols for hosted solutions, including firewalls, encryption, and access controls
* Conduct regular security audits, vulnerability assessments, and patch management to meet compliance standards
* Ensure hosted environments adhere to industry and regulatory security requirements
* Utilize System Centre Configuration Manager for software deployments, updates, and compliance in private and public cloud setups
* Ensure robust backup management and monitoring.
Automation and Scripting:
* Develop and optimize PowerShell scripts to automate administration, monitoring, and incident response across hybrid environments. Experience in other automation tools such as Ansible.
* Streamline processes to reduce manual efforts and improve operational efficiency.
Documentation and Collaboration:
* Maintain comprehensive documentation of hosted solutions, including configurations, procedures, and troubleshooting guides
* Collaborate with cross-functional teams and clients to design and implement tailored hosted solutions.
Skills & Qualifications:
* Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience)
* 5+ years of experience in a senior IT administration role, ideally with a focus on hosted solutions across private and public cloud environments
* Expertise in Citrix NetScaler, Citrix Virtual Apps, RDS, AVD, Azure, SQL Clustering, and SSL Certificates in hosted and hybrid environments
* Strong knowledge of Windows Server administration including, standardised builds to published standards, Active Directory, Group Policy and DNS
* Expertise in identifying and resolving complex issues, including advanced network troubleshooting advanced troubleshooting, and system hardening
* Hands-on experience with System Center Configuration Manager (SCCM) for multi-tenant and cloud-hosted setups
* Advanced skills in PowerShell scripting for automation in hybrid infrastructures
* Familiarity with monitoring tools like Zabbix, PRTG, or other hybrid cloud monitoring platforms
* Proven track record of maintaining uptime and security in private and public cloud-hosted environments to meet SLA and compliance requirements.
To be successful, you should bring:
* An understanding of how software and related services can improve the effectiveness of Public Sector organisations
* A consultative approach, able to influence others to support objectives
* Demonstrable ability to communicate, present and influence key stakeholders
* Experience delivering customer-focused solutions to customer needs
* Proven ability to juggle multiple issues, while maintaining sharp attention to detail
* Excellent listening and communication abilities
* An ability to form strong and mutually beneficial business relationships
* A track record of achieving targets, goals, and objectives
* Strong written, listening, and oral communication skills
* High level of commitment and passion for achieving levels of service excellence
* Excellent time management and prioritisation skills.
How to apply
Please submit a CV, and a short cover letter (maximum 500 words - including salary expectation, and current remuneration) explaining why you feel you would be suited to this role to join.us@idoxgroup.com
Please note successful applicants will need to satisfy the BPSS guidelines (Baseline Personnel Security Standards) which consist of the receipt of satisfactory references covering the last 3 years of employment; an identity check; verification of eligibility to work in the UK; and a Basic Disclosure Check. This is in order to help us make safer recruitment decisions.