Assistant Manager – Indirect tax transformation (E-invoicing)

Grant Thornton Cyber Defence Centre; Reading; Hybrid; GBP 60,000 - 85,000; Full time

Benefits offered by this job

Life cover

Income protection

Matched pension

Health screening

Doctor@Hand

Job summary

Grant Thornton Cyber Defence Centre in London/Reading/Bristol hybrid is seeking an Assistant Manager to lead indirect tax transformation projects focused on e-invoicing and e-reporting mandates.

You will deliver end-to-end solutions, design requirements, configure systems, and support go-live while building strong client relationships across industries. The role offers cross-functional collaboration and growth within our Digital Tax Consulting team.

Qualifications

• Experience delivering tax technology or e-invoicing projects in consulting, professional services, or in-house tax tech environments.
• Knowledge of e-invoicing and e-reporting regimes across jurisdictions.
• Hands-on experience implementing/integrating at least one e-invoicing or tax platform.
• Proven ability to manage budget and risk/quality on projects.
• Strong stakeholder management and collaboration across teams.

Responsibilities

• Lead end-to-end delivery of e-invoicing projects across the full lifecycle.
• Maintain alliances with third-party technology providers.
• Interpret country-specific e-invoicing mandates and translate to delivery actions.
• Manage engagement risk, quality, and regulatory expectations.
• Support proposals and bids for new opportunities in e-invoicing.
• Refine delivery methodologies and build reusable accelerators and tools.

Skills

Tax technology experience

E-invoicing implementation

Stakeholder management

Project delivery

Budget and risk management

Team collaboration

Education

CTA/ACA/ACCA (professional qualification)

Tools

ERP systems (Oracle)

ERP systems (MS Dynamics)

ERP systems (SAP S/4HANA)

Job description

Experienced Hire

Assistant Manager – Indirect tax transformation (E-invoicing)

Reading, Bristol, London

Permanent

Full time

Benefits To Help You Thrive, Such As

Core benefits including life cover, income protection and matched pension

Supporting your health with screening, dental and eye care and Doctor@Hand

Financial support through mortgage advice, will writing, investment accounts and more

Lifestyle benefits including buying holiday, bike schemes, discounts and cashback

Alternatively, Grant Thornton

At Grant Thornton we do things differently - looking to the future, driving ambitious growth and pioneering positive change in our industry. Providing audit, tax and advisory services, we empower clients through strategic insight, curiosity, and genuine partnership. And we empower our people with real opportunity, an inclusive culture and work life balance. A true alternative.

With over 5,000 people in the UK, and a presence in 150 global markets, we're on an ambitious journey, from great to exceptional, and we need the best people to help us achieve our potential. And with that comes the opportunity to help redefine what our industry looks like, and what you want from your career.

Job Description

Assistant Manager – Indirect tax transformation (E-invoicing)

Location: London/Reading/Bristol (hybrid)

Level: Assistant Manager

Team: Digital Tax Consulting Team (Indirect tax transformation and technology)

Role Overview

We're looking for an indirect tax transformation assistant manager with a primary focus on supporting the delivery of e-invoicing projects within our growing Digital Tax Consulting team. This is a client-facing role initially focusing on global e-invoicing and e-reporting mandates but will also provide the opportunity to grow and support other areas of our transformation business as required i.e. implementation of VAT solutions, working on ERP programs.

As an assistant manager, you will support as part of the team on the end-to-end delivery of e-invoicing engagements – from solution selection/design through to requirements gathering, configuration, testing and go-live while helping the team with building client relationships.

What You Will Do

• Support with the end-to-end delivery of e-invoicing projects, managing scope, budget, risk and quality across the full project lifecycle
• Support and help the senior team where required in maintaining alliances with third party technology providers
• Interpret country-specific e-invoicing mandates globally, including data and process impact/requirements and translating them into practical delivery actions for clients as part of projects
• Support the senior team on managing engagement risk and quality: apply firm policies and procedures, maintain appropriate documentation, and ensure compliance with internal quality standards and external regulatory expectations
• Support with new e-invoicing opportunities, along with supporting on proposals and bids
• Strengthen the wider practice — help the team in refining delivery methodology and support in building reusable accelerators and tools

Key skills and experience

• Experience delivering tax technology or e-invoicing implementation projects in a consulting, professional services, or in-house tax technology environment
• Knowledge of e-invoicing and e-reporting regimes and the ability to speak credibly about how mandates differ across jurisdictions
• Hands-on experience with supporting the implementation/integration of at least one e-invoicing or tax compliance/or similar platform
• Proven ability to problem solve, support with managing budget and risk/quality on projects
• Strong stakeholder management both internal and external
• Ability to work well with as part of a team, but also able to work independently
• Understanding of engagement risk, quality standards and regulatory expectations in a professional services environment

Additional Advantageous Experience

• Professional tax or accounting qualification (e.g. CTA, ACA, ACCA) or equivalent
• ERP experience (Oracle, Microsoft Dynamics, SAP S/4HANA) specifically for tax or e-invoicing purposes
• Experience with global rollout programmes spanning multiple countries and jurisdictions
• Broader indirect tax technology exposure – VAT compliance solutions, Tax engines etc.
• Familiarity with data analytics or automation tools (Alteryx, Power BI, SQL, Python) to support e-invoicing data validation and repo

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