GCR Others - Service Delivery Transformation - Senior

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. 

Senior Full Stack .NET Developer

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.

The opportunity

The individual will play the role of a Senior Full Stack .NET Developer in designing, building, and deploying secure, scalable, and user-centric enterprise applications within the Technology Transformation team.

The role will require working closely with Managers, Product Owners, Architects, UX, QA, and business stakeholders. It will involve developing modern web applications using .NET and front-end frameworks, integrating enterprise services and data sources, and working with AI capabilities where relevant.

The objective of this role is to deliver production-grade digital solutions that simplify business processes, improve user experience, and create measurable value. GenAI and AI integration experience will be an added advantage.

Your key responsibilities

• Designing, developing, testing, and maintaining end-to-end enterprise web applications using .NET technologies and modern front-end frameworks
• Translating business and functional requirements into scalable application architecture, technical designs, APIs, data models, and user experiences
• Building backend services and RESTful APIs using C#, ASP.NET Core, and Entity Framework Core
• Developing responsive and reusable user interfaces using Angular or React, TypeScript, HTML5, CSS3, and modern UI component libraries
• Designing and optimizing relational database objects, queries, and data-access components using SQL Server or equivalent databases
• Integrating applications with enterprise and third-party systems using REST APIs, JSON, Microsoft Graph, messaging, or event-driven patterns
• Implementing secure authentication and authorization using Microsoft Entra ID, OAuth 2.0, OpenID Connect, JWT, and role-based access control
• Applying clean architecture, SOLID principles, design patterns, and coding standards to build maintainable and extensible solutions
• Writing unit, integration, and automated tests, and participating in peer reviews, troubleshooting, and performance optimization
• Building and supporting CI/CD pipelines and deploying applications to cloud environments
• Collaborating with product, UX, QA, data, infrastructure, security, and domain teams to deliver integrated solutions
• Guiding and reviewing the work of junior developers and contributing to technical standards, reusable components, and knowledge sharing
• Integrating GenAI or AI services into applications, where applicable, such as conversational interfaces, document processing, intelligent search, summarization, classification, or assisted workflows
• Ensuring solutions meet enterprise expectations for security, privacy, logging, monitoring, resilience, and supportability

Skills and attributes for success

• Strong proficiency in C#, .NET, ASP.NET Core, Web API, and Entity Framework Core
• Hands-on experience with at least one modern front-end framework, preferably Angular or React, along with TypeScript, JavaScript, HTML5, and CSS3
• Strong understanding of full-stack application design, RESTful APIs, JSON, OpenAPI / Swagger, and API security
• Experience with SQL Server, database design, stored procedures, query optimization, and object-relational mapping
• Sound understanding of object-oriented programming, SOLID principles, design patterns, data structures, and algorithms
• Experience with unit testing and mocking frameworks such as xUnit, NUnit, MSTest, Moq, or equivalent tools
• Working experience with Git, pull requests, code reviews, and CI/CD practices
• Working experience with at least one cloud platform, preferably Microsoft Azure
• Experience troubleshooting production issues using application logs, telemetry, and monitoring tools
• Good understanding of secure coding, performance, scalability, accessibility, and responsive design
• Exposure to GenAI concepts and the integration of AI services or LLM-based capabilities into enterprise applications will be an added advantage
• Familiarity with Azure OpenAI, Semantic Kernel, retrieval-augmented generation, vector search, prompt design, or AI-assisted development tools is desirable

To qualify for the role, you must have

• Bachelor's or master's degree in Computer Science, Engineering, Information Technology, or a related discipline
• 5-8 years of software engineering experience, including strong hands-on experience in full-stack .NET application development
• Proven experience designing and delivering enterprise web applications to production
• Hands-on experience across backend services, front-end development, databases, system integration, testing, and deployment
• Experience contributing to reusable frameworks, components, accelerators, or engineering standards
• Ability to independently own technical workstreams and collaborate effectively with distributed teams and stakeholders

Ideally, you'll also have

Hands-on experience with Azure App Service, Azure Functions, Azure SQL, Azure Storage, Service Bus, Key Vault, Application Insights, API Management, Docker, Kubernetes / AKS, microservices, event-driven architecture, GitHub Actions or Azure DevOps pipelines will be an added advantage. Microsoft Azure, .NET, cloud, DevOps, security, or AI certifications are preferred.

What we look for

• Self-motivated individual with ownership of assigned workstreams and the ability to work independently
• Strong problem-solving mindset with the ability to translate requirements into practical and sustainable technical solutions
• Clear communication with both technical and business stakeholders
• Commitment to engineering quality, continuous learning, collaboration, and mentoring
• Ability to balance delivery timelines with security, maintainability, user experience, and long-term product needs

What we offer

EY Global Delivery Services (GDS) is a dynamic and truly global delivery network. We work across six locations - Argentina, China, India, the Philippines, Poland and the UK - and with teams from all EY service lines, geographies and sectors, playing a vital role in the delivery of the EY growth strategy. From accountants to coders to advisory consultants, we offer a wide variety of fulfilling career opportunities that span all business disciplines. In GDS, you will collaborate with EY teams on exciting projects and work with well-known brands from across the globe. We will introduce you to an ever-expanding ecosystem of people, learning, skills and insights that will stay with you throughout your career.

• Continuous learning: You'll develop the mindset and skills to navigate whatever comes next.
• Success as defined by you: We'll provide the tools and flexibility, so you can make a meaningful impact, your way.
• Transformative leadership: We'll give you the insights, coaching and confidence to be the leader the world needs.
• Diverse and inclusive culture: You'll be embraced for who you are and empowered to use your voice to help others find theirs.

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.