Senior Full Stack Developer (.NET and React)

People Consulting-HR Analytics-Senior

Senior Consultant (Chennai)

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. 

 

About Global Delivery Services

Global Delivery Services refers to EY's worldwide network of service delivery centers. The GDS team plays an important role in EY’s strategy by ensuring effective support to EY’s growth agenda.

Our journey started in 2002 with approximately 200 people. Today we stand at 80,000+ professionals in ten locations around the world. We operate in Argentina, China, Hungary, India, Philippines, Poland, Sri Lanka, Mexico, Spain and the United Kingdom.

Client service is focused on providing Consulting, Assurance, Tax, Strategy & Transactions, and Knowledge support to our clients around the world. The teams enable account teams worldwide to provide seamless, high-quality, value-added support, helping deliver exceptional client service.

Enablement Services provides cost-effective, high-skilled, and innovative services to support EY’s global and local enablement teams. Markets, BMC, AWS, Finance and Accounting, Risk Management, Procurement, People Shared Services, IT Service Delivery and IT Global Infrastructure services, are among the services offered by Enablement Services.

Our innovation specialists serve the GDS Client Service and Enablement Services teams, along with Service Lines, Core Business Services and Sectors. The team brings the desired environment, technologies and skilled teams together for facilitation, rapid prototyping and innovative thinking. The competencies offered include analytics, digital, user experience, mobile technology, infrastructure, Microsoft technologies and open innovation.

 

The Opportunity

A Full Stack Developer with .NET and React expertise specializes in building complete enterprise web applications using Microsoft's .NET ecosystem for the backend and React for the frontend. Also, you're expected to architect solutions, mentor junior developers, and own entire features from design through production.

 

Your Key Responsibilities

 

•  Frontend Development: Building responsive, performant user interfaces with React, managing state, and implementing complex UI interactions
• Backend Development: Designing and implementing APIs using .NET (C# with ASP.NET Core or Framework), managing business logic, and ensuring system reliability
• Database Design: Creating efficient SQL Server schemas, optimizing queries, and ensuring data integrity
• System Architecture: Contributing to decisions about application structure, scalability, and integration patterns
•  API Development: Building RESTful APIs endpoints with proper authentication, validation, and error handling
• Code Quality: Writing clean, maintainable code following SOLID principles and conducting code reviews
• Testing: Implementing unit tests, integration tests, and end-to-end tests across both layers
•  Deployment & DevOps: Managing CI/CD pipelines, deploying to Azure or on-premises servers, and monitoring applications
•  Problem-Solving: Debugging issues that span React frontend, .NET backend, and SQL Server database
•  Collaboration: Working with designers, product managers, QA, and other developers
•  Performance Optimization: Ensuring fast load times, efficient database queries, and optimized React rendering
• Documentation: Maintaining API documentation and architectural decision records

 

Skills and attributes for success

 

• Full-Stack Microsoft Expertise: You need strong knowledge across the entire Microsoft stack—React for frontend, .NET/C# for backend, and SQL Server for data. You should understand how these technologies integrate and optimize across all layers.
• Enterprise-Level Thinking: Enterprise applications require scalability, security, maintainability, and reliability. You should think about long-term implications of technical decisions, not just short-term solutions.
• Database Optimization: SQL Server expertise with understanding of query optimization, indexing strategies, and database design patterns that support high-performance applications.
• Communication: Explaining technical decisions about architecture, technology choices, and trade-offs to both technical and non-technical stakeholders.
• Problem-Solving Across Layers: Ability to diagnose whether a performance issue is in the React UI, .NET API, the database, or network layer—and fix it systematically.

 

 

<< Ideally, you’ll also>>     

5+ Years in .NET and React Development should have spent substantial time building production applications with both technologies. This typically means multiple projects where you've seen different architectural patterns, scaling challenges, and business requirements.

C# Expertise: Deep knowledge of C# including LINQ, async/await, delegates, events, generics, and modern language features (nullable types, records, tuples, etc.)

•API Design: Building RESTful APIs following best practices, versioning strategies, and proper HTTP status codes

•Authentication & Authorization: Implementing authentication (JWT, OAuth, Windows Auth) and role-based access control

React Proficiency: Modern component-based UI development with hooks, state management, and performance optimization. React is the standard for building dynamic user interfaces in this stack.

.NET Mastery: Deep knowledge of C# and the .NET ecosystem, including async/await patterns, dependency injection, middleware, and entity framework. Understanding both .NET Framework and .NET Core is valuable.

Database Optimization: SQL Server expertise with understanding of query optimization, indexing strategies, and database design patterns that support high-performance applications.

Advanced React Knowledge: Deep proficiency with React hooks (useState, useContext, useReducer, custom hooks), functional components, and lifecycle methods

JSX & Component Architecture: Building reusable, well-structured components with proper prop management and composition patterns

State Management: Experience with major state management solutions

CSS & Styling: Proficiency with CSS-in-JS solutions (styled-components, Emotion) or CSS modules, responsive design, and styling best practices

• Performance Optimization: Understanding React performance (memorization, lazy loading, code splitting, virtualization)

• Testing: Writing unit tests with Jest and React Testing Library, integration tests, and snapshot testing

• Debugging: Using React Developer Tools and browser Dev Tools effectively

Version Control: Expert-level Git proficiency including branching strategies and workflows

•CI/CD Pipelines: Experience with Azure DevOps, GitHub Actions, or similar tools for automated testing and deployment

•Azure: Proficiency with Azure services commonly used with .NET.

Monitoring & Logging: Setting up logging (Serilog, NLog), monitoring, and alerting

• Design Patterns: Understanding and implementing common patterns (Repository, Factory, Observer, Strategy, etc.)

• SOLID Principles: Writing code that follows Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion principles

• Clean Architecture: Building applications with clear separation of concerns across layers

 

<< What we look for>>

EY People Consulting is likely seeking someone who:

•Enterprise-Ready Developer: Someone who writes production-quality code that scales and is secure

• Full-Stack Independence: Can own features end-to-end without being blocked by frontend or backend specialists

• Modern Tech Stack Expertise: Deep knowledge of current best practices in both React and .NET ecosystems

• Technical Leadership: Can make architectural decisions, guide junior developers, and establish coding standards

 

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.

 

Our Commitment: As a commitment, we persistently endeavour to embody our values, fulfil our purpose, and champion inclusiveness. Our dedication is to cultivate EY into an environment where diverse perspectives are celebrated, creating a supportive atmosphere for individuals to authentically be themselves and contribute their utmost.

Professional Development: From entry-level employees to senior leaders, we believe in continuous learning. We offer opportunities to build new skills, take on leadership roles, and connect and grow through mentorship.

People and Culture: In our dynamic workplace, diversity, equity, and inclusiveness are ingrained in our culture. We're united by a commitment to create an environment where every individual's differences are valued, practices are equitable, fostering a sense of belonging. Our shared values include integrity, respect, teaming, inclusiveness, energy, enthusiasm, courage to lead, and building relationships based on doing the right thing.

Benefits: Embark on a transformative career journey with us and indulge in a suite of premium benefits, encompassing exclusive health and wellness packages, enticing rewards, and cutting-edge learning opportunities that empower you to continually grow and excel in your professional and personal development.

How to Apply: If you are passionate to join us and are aligned with our commitment to building a better working world, we invite you to apply by completing our user-friendly form with personal and professional information and by providing your consent to data privacy.

Successful candidates advance to a competency-based interview. If mutual interest persists, a job offer awaits.

“We are an equal opportunity employer and are committed to Diversity, Equity & Inclusion”.

 

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 teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.

 

Experience Level

Senior Level