Chief Technology Officer - SaaS CoE
EY
London, England (Hybrid)
Full Time
About the Role
At EY, we’re all in to shape your future with confidence.
We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help to build a better working world.
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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 Law solutions:
- Global VAT Reporting Tool (GVRT)
- Global Tax E-invoicing Solution (GTES)
- Mandatory Disclosure Regime (MDR) Web
- EY GloBE Engine (Pillar II/BEPS)
- Digital Tax Platform (DTP)
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 functions, geographies, and business units.
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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 end-to-end 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)
- Strong leadership skills to drive innovation and collaboration across teams
- Direct client engagement to support strategic pursuits and gather market feedback
Our global reach and combination of tax, tech, and client knowledge make us the perfect platform to build your career.
Technology Strategy & Leadership
- Develop and execute the technology strategy for the SaaS CoE, aligning with overall business objectives
- Collaborate closely with the Global SaaS CoE leader, Product leaders, and the Global Tax CTO
- Develop and continually enhance the target architecture (platform strategy, integrations, cloud infrastructure, security, scalability)
- Own technology governance frameworks, engineering standards, and lifecycle practices
- Drive adoption of engineering excellence, DevSecOps, automation, and AI-enabled development
- Stay abreast of emerging technologies and trends to remain competitive
- Foster a culture of continuous improvement and agile best practices
- Mentor and develop technology teams
Product Delivery & Lifecycle Oversight
- Lead the design, development, and deployment of scalable and secure SaaS solutions
- Oversee product engineering across all SaaS solutions, ensuring quality, reliability, and roadmap execution
- Partner with Product teams on technical requirements, timelines, and release planning
- Ensure global compliance, security, and data-retention standards
Operational Excellence
- Oversee governance of core operational functions (incident management, performance, change management, cloud operations, cost optimization)
- Drive efficiencies across global delivery hubs through centralization and standardization
- Ensure compliance with data security and privacy regulations
Cross-functional Leadership & Stakeholder Management
- Work closely with global Tax leadership on strategic direction, investment, and talent planning
- Provide thought leadership at executive governance forums
- 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
- Engage with clients to support strategic pursuits and gather feedback for product enhancement
New Business Models
- Lead technical evaluation of new product opportunities, emerging technologies, and ecosystem partnerships
- Shape and support EY’s tech-led innovation roadmap for global scalability
- Partner with cross-service-line teams to enable collaboration and co-creation
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Skills and Attributes for Success
- Proven experience in senior technology leadership, preferably as a CTO in a SaaS environment
- Deep understanding of SaaS architecture, enterprise cloud platforms (Azure preferred), and secure multi-tenant systems
- Strong leadership and communication skills, with the ability to influence across all levels
- Proven success driving engineering maturity, technical governance, and platform standardization
- Client-facing experience with a track record of gathering market insights
- Ability to manage multiple complex programs in a fast-paced environment
- Demonstrated ability to drive innovation and change
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To Qualify for the Role, You Must Have
- 10+ years in technology leadership within a large global organization (ideally tax and/or SaaS)
- Experience driving large-scale SaaS product portfolios
- Expertise in cloud architecture, software engineering, DevOps, and lifecycle management
- Knowledge of agile methodologies and modern engineering practices
- Experience with data analytics, machine learning, and AI
- Excellent communication skills to work closely with global executive leadership
Ideally, you’ll also have:
- Experience in professional services or a regulated global organization
- Track record delivering tax, finance, or compliance technology platforms
- Familiarity with EY internal systems and governance frameworks
- Knowledge of regulatory requirements for SaaS solutions
- Proven success launching and scaling SaaS products
- Familiarity with DevOps practices and tools
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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 mobilize high-performing teams across geographies and disciplines.
What We Offer You
At EY, we’ll develop you with future-focused skills and world-class experiences.
We’ll empower you in a flexible environment and fuel your extraordinary talents in a diverse and inclusive culture of globally connected teams.
Are you ready to shape your future with confidence? Apply today.
To support an equitable and inclusive experience during recruitment, please inform us as soon as possible about any disability-related adjustments or accommodations you may need.
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EY | Building a better working world
EY is building a better working world by creating new value for clients, people, society, and the planet, while building trust in capital markets. Enabled by data, AI, and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.
EY works across assurance, consulting, tax, strategy, and transactions—leveraging a globally connected, multi-disciplinary network in more than 150 countries and territories.
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About EY
London, England