Assistant Manager - M&A Integration

We are looking for a M&A Integration Assistant Manager to join our Sumer Offshore Services team, part of the Sumer Group, working in a hybrid model based at the 123 Consulting office in Johannesburg.

As an M&A Integration Assistant Manager, you will play an important role in supporting the successful integration of acquisitions across the Sumer Group. Working closely with the Strategy & Integration Director and Integration Manager, you will help coordinate integration activities from planning through to execution, ensuring acquisitions are embedded effectively and that value creation opportunities are realised.

This is an excellent opportunity for someone with experience in M&A, transformation or project delivery who enjoys working across multiple workstreams, engaging with senior stakeholders, and driving continuous improvement. You'll gain exposure to a wide range of strategic initiatives, helping shape how newly acquired businesses become part of one of the UK's fastest-growing professional services groups.

Responsibilities

Work closely with the Strategy & Integration Director and Integration Manager to support the development and implementation of the Group’s integration strategy; Support the management and coordination of integration activities across the Group, ensuring effective planning, tracking, and execution; Support the development and rollout of standardised pre- and post-acquisition integration processes and frameworks; Assist in identifying and tracking value creation opportunities, including synergies, across pre- and post-acquisition phases; Coordinate with functional leads to deliver integration activities requiring technical or specialist input, ensuring alignment across workstreams; Support the preparation of Investment Committee materials and other reporting material; Monitor and report on integration progress, KPIs, and value delivery, highlighting risks, dependencies, and supporting resolution actions; Assist in tracking and reporting of technology and transformation initiatives with various teams; Contribute to the continuous improvement of integration processes, tools, and methodologies

Requirements

Bachelor’s degree in Finance, Business, Economics, or a related field; Experience in an M&A, integration, transformation, or project environment (typically 3–5 years); Understanding of integration processes, including system integration, M&A integration, and synergy/value creation concepts; Strong project coordination and organisational skills, with the ability to manage multiple workstreams and priorities; Good analytical capability, with the ability to interpret data, track performance, and identify risks or issues; Effective communication and stakeholder management skills, with the ability to work across cross-functional teams; Strong reporting and presentation skills, including experience preparing materials for senior stakeholders; Ability to operate in a fast-paced, evolving environment, demonstrating a proactive and structured approach

Nice to have

Experience supporting M&A or integration programmes within a professional services or corporate environment; Exposure to enterprise systems or technology transformation initiatives; Experience with data analytics, dashboarding, or reporting automation; Project management certification is a plus