Senior Business Systems Administrator in Sheffield

Department: Business Change & Transformation

Location: Sheffield

Working Pattern: Hybrid, includes 3 days each week in the office

Contract Type: Full time, permanent

Salary: Up to £65,000 per annum

At Tes we are on a mission to power schools and enable great teaching worldwide, by delivering EdTech solutions that give educators the tools to succeed. From safeguarding and compliance to staff and pupil management, our innovative and flexible software and services help teachers and school leaders worldwide to provide the best education to millions of children.

Role overview

As a Senior Business Systems Administrator, you will play a critical role in the ownership, design, and evolution of Tes’ customer‑and business‑critical platforms. You will be accountable for ensuring these systems are secure, resilient, and scalable, while proactively shaping how technology enables business strategy and customer experience. Bringing deep technical expertise and commercial awareness, you will act as a trusted advisor to stakeholders, lead complex system changes and integrations end‑to‑end, and provide expert‑level support for high‑impact incidents. You will also influence platform strategy, mentor less‑experienced colleagues, and drive continuous improvement through automation, optimisation, and adoption of best practice.

Key Responsibilities

• Platform Ownership & Operations
• Own the reliable, secure, and performant operation of key business and customer‑facing systems
• Ensure systems meet availability, security, compliance, and data integrity standards
• Lead investigation and resolution of complex, high‑severity incidents and root‑cause analysis
• Proactively identify and mitigate technical debt, risks, and performance issues
• Participate in and help shape on‑call support and escalation processes
• Design, Delivery & Change
• Lead the design, implementation, and ongoing optimisation of complex systems, configurations, and integrations
• Translate business strategy and requirements into robust, scalable technical solutions
• Act as a senior technical contributor on projects, providing design authority and assurance
• Plan and execute system upgrades, releases, and major configuration changes with minimal disruption
• Ensure appropriate testing, quality assurance, release management, and documentation practices are followed
• Contribute significantly to platform strategy, roadmap definition, and technology direction
• Evaluate new tools, features, and technologies, making evidence‑based recommendations
• Drive automation, scripting, and process improvements to increase efficiency and reliability
• Promote and embed best practice in systems administration, security, and service management
• Stay current with industry trends and apply relevant innovations to improve Tes’ platforms and services
• Act as a senior point of escalation for technical advice and decision‑making
• Build strong relationships with business, product, delivery, and third‑party partners
• Mentor and support junior and mid‑level administrators, sharing knowledge and raising capability across the team
• Contribute to standards, patterns, and documentation that support consistency and scalability

What will you need to succeed?

Experience

• Significant hands‑on experience in a Senior Systems Administration or similar role
• Proven experience supporting and enhancing business‑critical platforms such as CRM, finance systems, and/or contact centre technologies
• Demonstrable experience leading complex system changes, integrations, or migrations
• Experience operating within change‑controlled, service‑oriented environments

Knowledge

• Deep knowledge of systems administration principles, including security, access control, data governance, resilience, and lifecycle management
• Strong understanding of how enterprise platforms support end‑to‑end customer journeys and business processes
• Good awareness of service management frameworks, cloud/SaaS operating models, and modern integration patterns

Skills

• Expert‑level troubleshooting and problem‑solving skills, with the ability to lead resolution of complex technical issues
• Strong solution‑design capability, balancing technical quality with business value
• Excellent communication and stakeholder‑management skills, able to influence at all levels
• Ability to mentor others, provide technical leadership, and work autonomously with minimal supervision
• Strong documentation, testing, and change‑management discipline

Qualifications

• Degree or equivalent qualification in Information Technology, Computer Science, or a related discipline, or substantial equivalent experience
• Relevant professional or vendor certifications (e.g. CRM platforms, cloud technologies, ITIL) are highly desirable

What do you get in return?

• 25 days annual leave rising to 30
• State of the art offices
• Access to a range of benefits via My Benefits World
• Free eye care cover
• Life Assurance
• Cycle to Work Scheme
• EAP (Employee assistance programme)
• Quarterly Tes Socials
• Access to an extensive Learning and Development menu

Who are Tes?

Tes is a global Edtech leader, on a mission to empower schools and educators to deliver impactful, inspiring learning experiences worldwide. We understand the unique challenges faced by schools, and our ecosystem is specifically designed to address these needs head‑on. Our intuitive technology streamlines complex tasks, enhances learning experiences, and alleviates the administrative burdens that often overwhelm schools. By working closely with schools, we provide up‑to‑date resources, expert guidance, and a technology ecosystem dedicated to innovation and excellence in education.