Current

Sr. Fullstack Engineer + Tech Lead — React + C#.NET

Sr. Fullstack Engineer & Tech Lead | React · C# · ASP.NET Core · Azure · Microservices

Senior Fullstack Engineer and Tech Lead with 12+ years building modern React frontends with C# ASP.NET Core backends in enterprise Microsoft-ecosystem environments. Combines React component architecture, state management, and Next.js with C# .NET REST APIs, Entity Framework Core, and Azure cloud-native deployment. Experienced leading fullstack teams in FinTech, enterprise SaaS, and digital transformation projects where React product quality and .NET backend enterprise standards must both be met. Ajay leads React + C# .NET delivery in enterprise environments. He defines the architecture on both sides — React component boundaries, API contracts, ASP.NET Core service design, and Azure deployment pipelines — while mentoring engineers and keeping delivery on track in complex enterprise product organizations. A Fullstack Tech Lead profile combining React modern frontend engineering with enterprise C# .NET backend, optimized for senior roles in Microsoft-ecosystem organizations.

Best fit

Sr. Fullstack Engineer, Tech Lead — React, C#, .NET enterprise and Microsoft-stack product teams

React
C#
.NET
ASP.NET Core
Tech Lead
Fullstack Engineer
Azure
Microservices
Next.js
Enterprise
React Architecture (Hooks, Redux Toolkit, React Query)
C# ASP.NET Core REST APIs & Web APIs
Entity Framework Core & SQL Server
CQRS, Mediator Pattern & Domain-Driven Design
Azure Cloud Services (App Service, Functions, Service Bus)
OAuth2, Azure AD & Enterprise Security

Core competencies

How this profile should be understood

UI Architecture

Designs maintainable frontend systems with reusable components, state boundaries, and scalable routing patterns.

Scalable Backend Systems

Builds modular services, background workflows, and integration layers that stay reliable as product and traffic complexity grow.

System Design & Architecture

Translates product and platform goals into service boundaries, deployment patterns, and maintainable technical direction.

API Design & Integrations

Defines clean contracts for frontend, backend, and third-party integrations with an emphasis on consistency and operational clarity.

Cloud & DevOps Delivery

Improves release reliability through containerized delivery, deployment automation, and production-ready cloud operating patterns.

AI Integration & Automation

Integrates LLM, retrieval, and agentic workflows into production systems with guardrails, observability, and real business use cases.

Technology groups

ATS-friendly skill grouping

Frontend

React, Next.js, TypeScript, Redux Toolkit, React Query, HTML

Backend

C#, ASP.NET Core

Architecture

Microservices, CQRS, API Gateway

APIs

REST APIs, Redis, OAuth2

DevOps

Azure, Docker, Kubernetes, CI/CD, GitHub Actions

AI / Automation

RAG

Selected emphasis

Projects, keywords, and positioning

Strongest projects

Enterprise SaaS Platform (Multi-Tenant), Banking Payment Processing System, CI/CD & Deployment Automation, Logistics Platform, Industrial IoT Monitoring Dashboard

Key expertise

React Architecture (Hooks, Redux Toolkit, React Query), C# ASP.NET Core REST APIs & Web APIs, Entity Framework Core & SQL Server, CQRS, Mediator Pattern & Domain-Driven Design, Azure Cloud Services (App Service, Functions, Service Bus), OAuth2, Azure AD & Enterprise Security, Microservices & API Gateway (.NET), React Design Systems & Component Libraries, CI/CD with Azure DevOps & GitHub Actions, Tech Lead & Engineering Team Mentoring

Profile positioning

A Fullstack Tech Lead profile combining React modern frontend engineering with enterprise C# .NET backend, optimized for senior roles in Microsoft-ecosystem organizations.