Assistant Team Manager – Pensions Administration

Company: Isio

Location: Croydon

Posted: April 28th, 2026

Overview

We’re growing and we want you to be part of our journey. At Isio, our purpose is to create better outcomes for our people, our clients and society. We are a people-first business and we’re committed to helping our colleagues gain a wide variety of experience, significant development opportunities and progression through the business.

Our Pensions Administration Team – We provide a friction-free pensions administration journey for our clients and their members. We believe that by creating the right blend of human touch and state-of-the-art technology, we’ll deliver the best possible experience for every member on their road to retirement and beyond.

What’s the role?

Pensions Administration is the heart of our trustee services and we are seeking a caring, motivated and technically competent Assistant Team Manager to join our team. You will be responsible for the service provided to a portfolio of pension scheme clients that range in size and type, predominantly Defined Benefit schemes. You will manage day-to-day activities in relation to your portfolio, and support the team with their training and development needs. This role will ideally be based in our Croydon or Birmingham office with a hybrid workstyle, but other office locations can be considered for the right candidate.

Key Responsibilities

Key skills and experience

What you can expect in return

Why Join Isio

Isio is a fast-growing professional services business that offers career development through an evolving client base, diverse and meaningful work, nationwide opportunities, and a culture that rewards high performance and accountability. We hold ourselves to the highest standards and our values guide how we advise our clients, operate as a business and work together as a team. We encourage our people to be bold, communicate with conviction, and deliver advice that matters. We offer hybrid, flexible work options to support work-life balance. Isio is an equal opportunities employer, and we welcome applications from all suitably qualified candidates.

About Isio

A progressive advisory firm, partnering with clients of all sizes to deliver expertise in pensions, employee benefits and wealth advisory services. We work with pension trustees, employers, individuals and families, supported by colleagues across 10 UK offices. With a Big 4 heritage, we combine a strong focus on quality with a fresh perspective challenging traditional thinking. We invest in our services, products and technology, and provide clear, expert solutions for our clients. This brings clarity, confidence, and better outcomes for everyone.

Isio is committed to fostering an inclusive, equitable and diverse workplace. We uphold values of respect, fairness, and inclusion. We offer a hybrid, flexible approach to work to support a work-life balance. If you may require a reasonable adjustment to be made for any reason during recruitment, please ask us at hrrecruitment@ISIO.com.

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