EY Tech Stack

Global professional services firm scaling automation and data governance

Professional Services London 10,001+ employees Privately Held

EY is a 10,000+ person professional services network operating across assurance, tax, consulting, and transactions in 150+ countries. The hiring acceleration (833 roles in the last 30 days) clusters heavily in finance (373), HR (163), and data (147)—reflecting internal transformation work. Active projects span HR transformation, finance modernization, and data governance, while pain points center on compliance automation and process efficiency. The tech stack reveals a hybrid legacy-to-modern transition: entrenched ERP (SAP, Oracle, Dynamics 365) paired with Python ML libraries (scikit-learn, TensorFlow, PyTorch) and nascent RPA adoption—typical of large enterprises automating audit and compliance workflows.

Tech Stack 200 technologies

Core StackSAP Oracle VMware Hyper-V Linux SQL Server MySQL PostgreSQL Dynamics 365 Python pandas scikit-learn PyTorch TensorFlow ADP Dynamics 365 Business Central Excel PowerPoint Word Windows AIX Solaris Microsoft Office Microsoft Access Outlook SAP FI SQL XGBoost Random Forest Protheus+170 more

AdoptingRPA

What EY Is Building

◆Challenges

Risk mitigation
Process inefficiencies
Ensuring compliance with laws
Compliance with employment background investigation laws
Compliance with data protection regulations
Complex indirect tax compliance
Streamlining processes
Hr process efficiency
Managing data protection risk
Automating audit processes

▲Active Projects

Hr transformation projects
Policy development for hire investigations
Enhancing internal investigative background and due diligence programs
Process automation
Finance transformation
Digital hr strategy implementation
Advising on client background investigation agreements
Cross-service line and cross-industry go-to-market strategies
Vendor relationship management
Us firm data governance strategy implementation

Hiring Activity

Accelerating1,600 roles · 850 in 30d

Department

Finance

373

163

Data

147

Legal

140

Consulting

125

Engineering

114

Ops

112

Marketing

Seniority

Senior

495

Junior

448

Mid

323

Manager

108

Director

Intern

Staff

Lead

Notable leadership hires: Assistant Director, Business Transformation Director, Product Marketing Lead, Meeting & Business Events Lead, Test Lead

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About EY

EY delivers assurance, tax, consulting, strategy, and transaction advisory to institutional and corporate clients globally. The firm operates a distributed network of 10,000+ professionals across 25+ hiring geographies, from the US and UK to India, Brazil, and Southeast Asia. Core service lines include audit, mergers & acquisitions, financial services advisory, and sector-specific consulting. Internal operations span HR transformation, finance process redesign, data governance, and investigative background-check program management—reflecting the operational complexity of a multinational services firm scaling compliance and efficiency in parallel with client-facing delivery.

HeadquartersLondon

Company Size10,001+ employees

Hiring MarketsBrazil, Spain, Turkey, Portugal, Australia, Mauritius, United Kingdom, Netherlands

Frequently Asked Questions

What is EY's tech stack?

EY's core stack includes SAP, Oracle, and Dynamics 365 for ERP; SQL Server, PostgreSQL, and MySQL for databases; Python, scikit-learn, TensorFlow, and PyTorch for analytics and ML; and VMware/Hyper-V for virtualization. The firm is actively adopting RPA for process automation.

What is EY working on internally?

Active projects include HR transformation, finance modernization, data governance strategy, process automation, digital HR implementation, and enhanced compliance and due diligence programs—reflecting a firm-wide shift toward operational efficiency and regulatory control.