Strategic Change & M&A Business Analyst

Marex; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

Marex is seeking a Business Analyst to support strategic transformation initiatives within Change Management at Marex. You will contribute to acquisitions integration, document current and target operating models, and collaborate with stakeholders across technology, business, and governance functions to enable effective change delivery.

The role emphasizes structured analysis, clear documentation, and a consistent BA approach to ensure delivery readiness and strong governance across Marex’s

Qualifications

• Mergers and acquisitions experience is strongly preferred.
• Proven BA background across transformation and business change in financial services.
• Ability to document end-to-end operational flows and controls.

Responsibilities

• Support strategic and priority change initiatives, with a strong focus on acquisitions, integration and business change.
• Partner with Programme and Project Managers, sponsors, business stakeholders, technology teams and control functions to shape scope, delivery plans, dependencies, risks and intended outcomes.
• Develop a clear understanding of acquisition scope, strategic rationale, key risks, assumptions and functional impacts to support mobilisation, planning and decision-making.
• Translate due diligence findings into structured gap analysis, requirements, target operating model inputs and planning actions.
• Elicit, analyse and validate requirements, user stories, business rules and acceptance criteria, ensuring they are clear, prioritised, traceable and aligned to delivery needs.
• Facilitate workshops, interviews and playback sessions, including preparing workshop plans, artefact lists, review packs, sign‑off checklists and open‑item trackers.
• Map current‑state and target‑state processes, booking models, trading flows, data flows, system dependencies and integration flows to identify gaps and improvement opportunities.
• Develop target operating model artefacts covering people, process, technology, data, controls, governance, reporting, operational readiness and handover requirements.
• Support solution validation and user acceptance testing, including test scenario development, requirement clarification, defect triage and evidence‑based SME validation.
• Maintain consistent BA standards, templates, documentation practices and reusable artefacts to support governance, audit, knowledge sharing and continuous improvement.

Skills

Mergers & acquisitions support

Business analysis

Process mapping

Requirements gathering

Stakeholder engagement

Tools

Power BI

Microsoft Planner

Job description

Marex is seeking a Business Analyst to support strategic transformation initiatives within Change Management at Marex. You will contribute to acquisitions integration, document current and target operating models, and collaborate with stakeholders across technology, business, and governance functions to enable effective change delivery.

The role emphasizes structured analysis, clear documentation, and a consistent BA approach to ensure delivery readiness and strong governance across Marex’s