Chief Technology Officer - SaaS CoE

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The opportunity

With the continuing and rapid development of tax technology solutions and in particular Software-as-a-Service (SaaS) solutions, it is necessary to enhance our operational models to achieve success in the future. In preparation for the future, EY Tax and Law have created a new “Centre of Excellence” (CoE) to support SaaS solutions throughout their lifecycle.

The objectives of the SaaS CoE are twofold:

• Operational management of Tax and Law SaaS solutions
• Sales enablement and support to drive the market success of these solutions

The SaaS CoE currently supports Tax and Lax solutions Global VAT Reporting Tool (GVRT), Global Tax E-invoicing Solution (GTES), Mandatory Disclosure Regime (MDR) Web, EY GloBE Engine (Pillar II/BEPS) and Digital Tax Platform (DTP), and this number of solutions is expected to grow rapidly.

The SaaS CoE sits within New Business Models, a global workstream looking to change how EY goes to market, builds products and collaborates effectively across different functions, geographies and business units.

Your key responsibilities

EY is looking for a visionary and strategic Chief Technology Officer (CTO) to provide technology leadership in our SaaS CoE. As the SaaS CoE CTO, you will be accountable for the endtoend technology vision and technical product execution across a global portfolio.

This role requires a deep understanding of software development, cloud technologies, and industry trends (including AI and data); along with strong leadership skills to drive innovation and collaboration across teams. Additionally, the CTO will engage directly with clients to support strategic pursuits and gather valuable market feedback.

Our global reach and combination of tax, tech, and client knowledge make us the perfect platform to build your career.

Your responsibilities will include:

• Technology Strategy & Leadership
  
  • Develop and execute the technology strategy for the SaaS CoE, aligning with the overall business objectives
  • Collaborate closely with the Global SaaS CoE leader, Product leaders, and the Global Tax CTO in execution of the technology strategy
  • Develop and continually enhance the target architecture, covering platform strategy, system integrations, cloud infrastructure, security posture, and scalability standards
  • Own technology governance frameworks, engineering standards, and lifecycle practices across all solutions (GVRT, GTES, MDR Web, GloBE Engine, DTP, and future assets)
  • Drive adoption of engineering excellence, DevSecOps, automation, and AIenabled development capabilities
  • Stay abreast of emerging technologies and industry trends, including AI and data, to ensure the organisation remains competitive and innovative
  • Foster a culture of continuous improvement, encouraging teams to adopt best practices in software development and agile methodologies
  • Mentor and develop technology teams, promoting professional growth and knowledge sharing
• Product Delivery & Lifecycle Oversight
  
  • Lead the design, development, and deployment of scalable and secure SaaS solutions, in collaboration with our Client Technology team and vendors
  • Oversee product engineering across all SaaS solutions, ensuring delivery quality, reliability and roadmap execution
  • Partner closely with Product teams to define technical requirements, delivery timelines and release planning
  • Ensure products meet global compliance, security, and dataretention requirements (including crossborder, regulatory, and ASPaligned standards, where applicable)
• Operational Excellence
  
  • Oversee governance around core operational functions, in collaboration with Client Technology, covering incident management, performance, quality, change management, cloud operations and cost optimisation
  • Drive efficiencies across global delivery hubs, promoting centralisation, and standardisation
  • Ensure compliance with industry standards and regulations related to data security and privacy
• Crossfunctional Leadership & Stakeholder Management
  
  • Work closely with global Tax leadership on strategic direction, investment planning and talent strategy
  • Provide thought leadership at executive governance forums and SteerCo meetings
  • Act as the senior technology counterpart to Product, Go-to-market, Marketing, Customer Success and Operations teams
  • Manage relationships with external technology partners and vendors to leverage their expertise and solutions
  • Work with cross-functional teams to identify and prioritise technology initiatives that enhance product offerings and improve customer experience
  • Engage with clients to understand their needs, support strategic pursuits and gather feedback to inform product development and enhancements
• New Business Models
  
  • Lead technical evaluation of new product opportunities, emerging technologies, and ecosystem partnerships
  • Shape and support EY’s techled innovation roadmap, ensuring alignment to market needs and global scalability
  • Partner with crossserviceline teams to enable collaboration and cocreation opportunities

Skills and attributes for success

• Proven experience in a senior technology leadership role, preferably as a CTO or equivalent in a SaaS environment
• Deep understanding of SaaS architecture, enterprise cloud platforms (Azure preferred), and secure, scalable multi‑tenant systems
• Excellent leadership, communication, and interpersonal skills, with the ability to influence and collaborate across all levels of the organisation
• Proven success driving engineering maturity, technical governance, and platform standardisation
• Experience in client-facing roles, with a track record of supporting strategic pursuits and gathering market insights
• Ability to thrive under pressure while managing multiple complex programs and stakeholders
• Demonstrated ability to drive innovation and manage change in a fast-paced environment

To qualify for the role, you must have

• 10+ years’ experience in a technology leadership role within a large global organisation, ideally within the tax and/or SaaS market
• Prior experience owning or driving large‑scale SaaS product portfolios
• Demonstrated expertise in cloud architecture, software engineering, DevOps, and product lifecycle management
• Strong knowledge of agile methodologies and modern engineering practices
• Experience with data analytics, machine learning, and AI technologies
• Excellent communication skills and the maturity to work closely with global executive leadership

Ideally, you’ll also have

• Experience working within professional services or a regulated global organisation
• Track record of delivering tax, finance, or compliance technology platforms
• Familiarity with EY internal systems, technology governance, and operational frameworks
• Knowledge of regulatory requirements and industry standards related to SaaS solutions
• Proven track record of successfully launching and scaling SaaS products in a competitive market
• Familiarity with DevOps practices and tools to enhance software delivery and operational efficiency

What we look for
We’re seeking a transformational technology leader who can set the vision, build trust, and scale a global technology function. You will bring a strategic mindset, a passion for innovation, and the ability to mobilise high‑performing teams across geographies and disciplines

What we offer you

At EY, we’ll develop you with future-focused skills and equip you with world-class experiences. We’ll empower you in a flexible environment, and fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams. Learn more .

Are you ready to shape your future with confidence? Apply today.

To help create an equitable and inclusive experience during the recruitment process, please inform us as soon as possible about any disability-related adjustments or accommodations you may need.

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