Aon Corporation
UK Senior Pensions Administrator

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Senior Pensions Administrator – Sheffield
We’re hiring!
We are looking for experienced pensions professionals to join our team.
This role does not require experience at a senior level but if you have experience in a pensions administration environment and you’re looking to take the next step in your career and be rewarded for the experience you have gained so far, then we want to hear from you. We will help you to nurture your existing skills, and help you to find the best of you.
You will be willing to continue to learn in a fast paced business, as part of a determined team with a strong bond, in an environment where you feel at home.
You will have opportunities to progress your career, and you will benefit from a market leading benefits package.
For more information about this exciting opportunity, please read on!
Life at Aon
Aon is a global firm with local values. We are committed to offering opportunities to colleagues from all backgrounds. We build close teams based on the same ethos, across the globe. We work as one, as Aon United.
At Aon, we follow the hybrid workstyle. This gives you the best of both worlds, working at least 50% of your time in the office but with the flexibility to do this however it suits you.
We believe this helps us build and retain these bonds and a togetherness to achieve our collective and personal goals through continuous development, whilst also providing a work life balance which enhances wellbeing.
Our office spaces are modern and vibrant workspaces where teams can work and thrive off the social connections this provides.
This role will be based in our Sheffield office in the lively Ecclesall Road area of Sheffield with many shops, a gym, restaurants and bars close by. Commuting is easy with great public transport links and parking available in the area.
The Sheffield team is a team of around 150 colleagues with many different roles including Project Teams, our unique pensions service centre, our core administration teams and IT colleagues. We are not a huge team, and this gives us the ability to recognise achievements and connect with people on a personal level. This is the best of both worlds, the scale of opportunities working for a global firm provides, with a non-corporate feel where you can be rewarded for your career accomplishments.
The team is a hard working diverse team with a strong but inclusive bond, with many social events and opportunities we would like you to be a part of.
As a firm we are committed to wellbeing and offer many wellbeing initiatives including social and wellbeing zones within the office, to healthcare and support and two additional wellbeing days off a year to allow colleagues to recharge.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
See breakdownIt searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Whilst most companies have a benefits structure in place, we believe ours is truly outstanding and can be tailored to suit your own individual needs.
Our Sheffield office is an energetic, lively and friendly environment where colleagues can develop and be recognised for the part they play in our team. Our management team is committed to colleague development and we take pride in building careers and seeing colleagues flourish. We would really value your energy and your willingness to continue to grow with us. We would love to talk to you about joining our team.
Your Role at Aon
As a Senior Administrator, you will provide high quality administration support for internal and external clients by:
- Being a SME for processes, clients, systems, and tools and being proficient in processing and checking.
- Monitoring team activity and coordinating workload in line with SLAs by organizing, prioritising, and making effective workload allocation decisions.
- Producing and analysing reports as required for internal and external clients and requirements.
- Identifying issues with processes handled in teams and driving a process to find and implement solutions.
- Implementing changes to tools and documentation needed to support effective service delivery.
- Increasing the level of processing knowledge and driving continuous improvement in all areas of processing.
- Writing and maintaining knowledge documents, keeping them up to date and incorporating changes to legislation.
- Sharing best practice with colleagues through process and tool training.
- Taking part in both internal and external audits.
- Being a role model in the team by giving constructive feedback to colleagues to improve performance and supporting the Manager.
- Coordinating and participating in projects, both internal and client projects.
- Building strong relationships with client teams, client representatives and third-party providers.
- Achieving team and individual targets (KPIs, SLAs, quality targets).
- Contributing to the team, supporting the rest of the team based on their needs (a buddy to less experienced colleagues and supporting more senior colleagues).
- Maintaining required technical knowledge and behavioural standards and expertise, especially all regulatory and statutory requirements.
- Performing additional tasks as requested by your manager.
How this opportunity is different
Every day, our colleagues make a difference to people’s lives, work with the best, own their potential, and value one another. Together, we share this one purpose: to empower economic and human possibility around the world. This unifying goal is at the heart of our identity, and it lives in everything we do.


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We want you to join us. You will be given opportunities to shine. We will invest in you and we will help to create the best version of you. We will value your contribution every day, and we will recognise your achievements and help you to build a successful career.
Ultimately, we want you to feel fulfilled and happy in your role to enable you to produce your best work.
As part of our diverse and established team, you’ll bring valuable skills and expertise to Aon. Pensions experience is not required but a willingness to learn and a determination to provide excellent client service is a must.
Skills and experience that will lead to success
- Team player, who can work to tight deadlines.
- Ability to identify and implement best practice.
- Proven record in coaching and mentoring.
- Strong analytical skills.
- Excellent communication skills, both verbal and written.
- Excellent attention to detail and commitment to provide ongoing quality.
- Good understanding of Word and Excel.
- Strong numerical skills.
How we support our colleagues
In addition to our comprehensive benefits package, we encourage an inclusive workforce. Plus, our agile environment allows you to manage your wellbeing and work/life balance, ensuring you can be your best self at Aon. Furthermore, all colleagues enjoy two “Global Wellbeing Days” each year, encouraging you to take time to focus on yourself. We offer a variety of working style solutions, but we also recognise that flexibility goes beyond just the place of work... and we are all for it. We call this Smart Working!
Our continuous learning culture inspires and equips you to learn, share and grow, helping you achieve your fullest potential. As a result, at Aon, you are more connected, more relevant, and more valued.
We provide individuals with disabilities reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment in accordance with applicable law. Please contact us to request an accommodation on ReasonableAdjustments@Aon.com
Aon values an innovative, diverse workplace where all colleagues feel empowered to be their authentic selves. Aon is proud to be an equal opportunity workplace.
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