Client Technology - Software Engineering in London

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.

The opportunity leads the delivery of solution or infrastructure development services for a large or more complex project, using strong technical capabilities and outstanding hands‐on experience. Takes accountability for the design, development, delivery and maintenance of solutions or infrastructure, driving compliance with and contributing to the development of relevant standards. Fully understands business and user requirements and ensures design specifications meet the requirements from a business and technical perspective.

Your Key Responsibilities:

• Solves complex and escalated aspects of a project, performing coding, debugging, testing and troubleshooting throughout the development process.
• Provides advanced technical expertise to maximize efficiency, reliability and value from current solutions, infrastructure and emerging technologies, showing technical leadership and identifying and implementing continuous improvement plans.
• Develops strong working relationships with peers across Development & Engineering and Architecture teams, collaborating to develop and engineer leading solutions.
• Provides a leadership role for the work group, ensuring the appropriate expectations, principles, structures, tools and responsibilities are in place to deliver the project.
• Drives consistency to the relevant processes, procedures, standards, technical design whilst supporting the definition, maintenance and implementation of technology standards.

Skills And Attributes For Success:

• Advanced technical proficiency in designing, developing, and debugging solutions.
• Advanced knowledge of one or more of: C#/Java or Python.
• Bachelor's degree in computer science, Engineering, IT, Mathematics, or related field preferred.
• More than 10 years applied experience.
• Significant relevant experience in either an internal or external software or platform engineering role, or similar.
• Technical knowledge and experience in delivering software/platform engineering solutions, providing comprehensive technical advice and handling user requirements.
• CI/CD delivery using code management, configuration management and automation tools such as GitHub, ADO.
• Proficiency in fine‐tuning language models for specific tasks, including text generation, summarization, or question answering.
• Knowledge of embedding models and their application in NLP tasks like similarity matching, clustering, and information retrieval.
• Familiarity with designing and implementing agentic systems that combine AI models with external tools or environments for autonomous decision‐making.
• Ability to design robust evaluation frameworks for AI models and agents, including metrics development, A/B testing, and performance benchmarking.
• Ideally, you’ll also have Microsoft/Google/AWS certificates.
• Delivery using modern methodologies.
• Significant proven experience in building applications using container‐orchestration systems like Kubernetes, and container engines like Docker.

What We Look For:

• A self‐starter, independent‐thinker, curious and creative person with ambition and passion.

What We Offer You:

We offer a comprehensive compensation and benefits package where you’ll be rewarded based on your performance and recognised for the value you bring to the business. Our Total Rewards package includes medical and dental coverage, pension and 401(k) plans, and a wide range of paid time off options.

Join us in our team‐led and leader‐enabled hybrid model. Our expectation is for most people in external, client serving roles to work together in person 40‐60% of the time over the course of an engagement, project or year. Under our flexible vacation policy, you’ll decide how much vacation time you need based on your own personal circumstances.

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