Job Description

At EY, you’ll have the chance to build a career as unique as you are, with the global scale, support, inclusive culture and technology to become the best version of you. And we’re counting on your unique voice and perspective to help EY become even better, too. Join us and build an exceptional experience for yourself, and a better working world for all.

EY Global Delivery Services (GDS) is the hub of innovation, a technology powerhouse, a global talent center and, a driver of operational excellence within EY, propelling EY’s purpose of building a better working world. With a robust network spread across 9 countries and 20 cities, GDS’s dynamic network of highly talented professionals leverage data, AI, and cutting-edge technology to enhance EY's wide array of services in assurance, consulting, tax, strategy, and transactions.

Join us at EY GDS Hungary to shape your future with confidence.

About the role:

The Staff member in the GTES SaaS Centre of Excellence will support the end‑to‑end implementation of EY’s Global Tax E-Invoicing Services (GTES), is EY's cloud-based Software-as-a-Service (SaaS) platform designed to help organizations comply with global e-invoicing and e-reporting. It enables businesses to generate, validate, transmit, monitor, and store tax-compliant electronic invoices while meeting country-specific regulatory obligations.

You will work with engagement teams and clients in configuring the tool, testing, and deployment of e-invoicing for multinational clients.

The role offers working closely with tax, finance, ERP, and technology teams to ensure compliance with global e-invoicing regulations and digital tax reporting requirements.

Responsibilities / Business Requirements

• Participate in end-to-end e-invoicing implementation projects for multinational clients.
• Configure e-invoicing solutions based on client business requirements.
• Support integration between ERP systems and e-invoicing platforms.
• Analyse and resolve data, configuration, and integration issues identified during testing and deployment.
• Analyse country-specific e-invoicing and digital reporting requirements.
• Track implementation risks, issues, dependencies, and change requests, providing timely updates to leadership.
• Validate user‑provided information and support onboarding to the GTES User Acceptance Testing (UAT) environment and Production environment.
• Coordinate with technical teams to develop and test API integration.

Implementation & Configuration

• Support the end-to-end configuration and implementation of GTES solutions for client engagements, delivering e-invoicing projects for multinational organizations across multiple jurisdictions.
• Validate system access, user information, and content requirements to facilitate the successful setup and configuration of GTES accounts.
• Analyse and resolve data, configuration, and integration issues identified during testing and deployment.

Data & Compliance Support

• Monitor regulatory changes related to e-invoicing requirements across jurisdictions.
• Support data validation, cleansing, and transformation to ensure accurate e-invoicing reporting compliance.
• Perform review of exceptions flagged by system analytics and suggest corrective actions to engagement teams.

Client & Engagement Collaboration

• Provide support to client & engagement teams on configuration queries.
• Help maintain documentation, trackers, and process logs as part of the standardized SaaS CoE methodology.
• Communicate clearly and provide timely updates to leads, contributing to smooth project delivery.

Product Quality & Governance

• Ensure accurate implementation of indirect tax rules and governance controls aligned with global standards.
• Maintain strong adherence to quality frameworks, audit trails, and documentation guidelines.

Continuous Improvement

• Identify recurring issues, inefficiencies, or configuration enhancements and escalate them to product/content teams.
• Actively participate in knowledge‑building sessions, complex module walkthroughs, and cross‑country learning forums.
• Support development of best practices and reusable assets for future implementations.

Professional Attributes

• Strong analytical and problem‑solving skills.
• High attention to detail with the ability to follow structured processes.
• Excellent communication skills to interact with clients and engagement teams and respond to client queries.
• Ability to work in fast-paced, multi-country engagements with strict timelines.
• A proactive mindset with willingness to learn complex tax technology and local country requirements.

Desired Skill‑set

• Prior experience in indirect tax compliance, tax return preparation, or shared service processes.
• Exposure to any ERP (SAP, Oracle, MS Dynamics, NetSuite) or tax engines (Vertex/ONESOURCE).
• Understanding of XML, e‑filing schemas, or interface testing.
• Knowledge of multi-country indirect tax rules and compliance variations.
• Experience with quality review, testing documentation, or audit trails.
• Certification or coursework in indirect tax, accounting, or data/analytics would be beneficial.
• Interest in automation, digital tax reporting, AI‑based testing tools, or workflow platforms.

What we look for

People with the ability to work in a collaborative manner to provide services across multiple client departments while following the commercial and legal requirements. You will need a practical approach to solving issues and complex problems with the ability to deliver insightful and practical solutions. We look for people who are agile, curious, mindful, and able to sustain positive energy, while being adaptable and creative in their approach.

What we offer

By seamlessly integrating with EY member firm teams across the global, GDS contributes significantly to EY's purposeful and sustainable growth, delivering insights and solutions that foster trust in capital markets and create value for EY clients, society, and the planet.

We strive to achieve the right balance for our people, enabling to deliver excellent results while allowing everyone to build your career without sacrificing personal priorities, providing:

• A competitive salary and benefits package, including private health insurance.
• Opportunities for professional development and career growth, by access to training and development programs, coaching and mentoring as well as on-the job opportunities.
• A supportive and collaborative work environment with multicultural teams.
• Flexible working hours and hybrid work with 2 days in the office per week.
• Employee wellness programs and initiatives and the opportunity to obtain the All You Can Move sport pass.
• Possibility to volunteer for meaningful initiatives to positively impact lives in the community.

GDS is All in to shape the future with confidence, addressing today's challenges, and anticipating tomorrow's needs. EY GDS is not just reimagining the future of work—it's actively building it, ensuring agility, efficiency, and resilience in an ever-evolving world.

EY | Building a better working world

EY exists to build a better working world, helping to create long-term value for clients, people and society and build trust in the capital markets.

Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform and operate.

Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to find new answers for the complex issues facing our world today.