Senior Business Systems Administrator
Job Title: Senior Business Systems Administrator
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.
With more than 13 million educators in our community, combined with our working relationships with 25,000 schools in over 100 countries, we have been making a difference for over 100 years.
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
Strategy & Continuous Improvement
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
Collaboration & Leadership
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
5% pension after probation
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. Whether simplifying administrative workflows, creating dynamic classrooms, or advancing professional development, Tes is the trusted partner for schools worldwide.
Join the hundreds of schools already benefiting from the Tes ecosystem. Together, we empower educators to achieve more, ensuring every student thrives in a supportive, well-managed learning environment.
With Tes, excellence in education is not just a goal - it's a sustainable and rewarding reality. For more information about Tes, our products, and our team, visit: www.tes.com.