Join OneAdvanced

We’re looking for a Senior Service Transition Manager to lead the successful transition of IT services for one of OneAdvanced’s highest-priority customers, while also supporting other key strategic accounts and programmes where needed.

You’ll own the end-to-end transition process, ensuring new and changed services move smoothly into live operation with minimal disruption and maximum stability. From planning and governance through to testing, deployment, and operational readiness, you’ll make sure every transition is delivered to a consistently high standard.

Working with enterprise-level accountability, you’ll apply OneAdvanced service transition frameworks and best practices to protect customer experience, ensure operational teams are fully prepared, and deliver stable live services from day one.

This is a hybrid role based out of our York or Birmingham office, with the expectation that the successful candidate will attend the office weekly or monthly as required.

What You Will Do

Lead the successful transition of IT services into live operation, ensuring services are fully tested, operationally ready, and delivered with minimal disruption for key customers.

Own the full service transition lifecycle from initiation through to operational acceptance
Create and manage transition plans, timelines, dependencies, resources, and risk mitigation
Ensure testing, training, documentation, and support models are completed before go-live
Act as the senior transition lead for customers, building trusted stakeholder relationships and managing escalations
Drive governance, progress reporting, and adherence to service transition frameworks and ITIL best practices
Identify, manage, and resolve risks, issues, and service impacts throughout transition and Early Life Support
Own service acceptance criteria and act as the gatekeeper for live service handover into Operations
Lead knowledge transfer, operational readiness, and post-go-live reviews for continuous improvement
Collaborate across project, technical, operational, and supplier teams to deliver seamless transitions
Track KPIs and provide clear reporting on transition quality, readiness, and service performance

What You Will Have

Please note, applicants must have the legal right to work in the UK at the time of application.

You’ll be a confident service transition leader who can manage complex change, build trusted customer relationships, and ensure services move smoothly into live operation.

Strong experience in IT Service Management or Service Transition within a senior customer-facing role
Proven success delivering complex transitions across multiple customers or programmes
Good understanding of ITIL best practices, with ITIL and/or SIAM certification desirable
Confident leadership with the ability to challenge and influence stakeholders effectively
Strong risk management, problem-solving, and decision-making skills
Clear communication across technical and non-technical teams
Ability to work independently, manage priorities, and maintain high service quality
Flexibility to travel to customer sites when required

#LI-RL1

What We Do For You

Wellbeing that means something

26 days’ holiday + bank holidays (and the option to buy more) plus 1 paid volunteering day every year
Exceptional family leave, 26 weeks fully paid maternity/adoption, 4 weeks fully paid paternity, 22 weeks fully paid shared parental leave, plus 5 days paid bereavement leave
Robust sick pay of up to 13 weeks full pay + 13 weeks half pay
24/7 Employee Assistance Programme for confidential support
Private medical insurance for everyone, no medical-history exclusions

Financial benefits that have your back

Performance-based rewards tailored to your role, from company-wide bonuses to OTE and commission structures
Income protection: up to 75% salary for 5 years if you ever need it

Grow your career with us

SkillsHub learning platform with leadership pathways, future-manager training, and a huge online library
Access to external training and apprenticeships

Making a Difference

MatchIt! Fundraise for a cause close to your heart and OneAdvanced will match part of the funding
Pennies from Heaven donate the pennies from your pay check to help make a difference without lifting a finger

Plus plenty other flexible benefits to suit your lifestyle on our RewardHub, including:

ULEV car scheme with 1,000+ models
Dental insurance, Health Cash Plan, Critical Illness Cover, Partner Life Cover

Who We Are

At OneAdvanced, we are at the forefront of delivering sector-focused technology solutions that simplify complexity, drive meaningful progress, and help build a fairer, more inclusive society.

We’re much more than a software company. We deliver SaaS workflow applications and IT services that power organisations across Education, Government, Healthcare, Legal, Manufacturing, Housing, Retail, and more.

OneAdvanced is one of the UK’s largest business software and services companies. Based in Birmingham (The Mailbox), operating across the UK, Ireland, India, and Australia.

Our secure, scalable platform, including OneAdvanced AI, our private AI service for UK organisations, powers connectivity and innovation across critical sectors. Alongside our software are our IT services, including hosting, managed services, and application modernisation.

We strive to create an inclusive workplace that drives innovation and collaboration, championing diverse perspectives and ideas. Our Environmental, Social and Governance (ESG) strategy is embedded in everything we do, guiding us to create meaningful impact for our people, our customers and the planet.

Proud to be recognised in the Financial Times’ Best Employers 2026 list for the second-year running, an independent and data led ranking based on employee feedback. Join us and become part of a team that’s powering the world of work and making a real difference.

Join us and become part of a team that’s powering the world of work and making a real difference.

Learn more at www.oneadvanced.com