C#.Net Fullstack engineer ( 50% front end and 50% backend)

• *Senior C# .NET Fullstack Engineer (AI / LLM Focus)**

About the Role

We are looking for a

• *Senior Fullstack Engineer**

with strong expertise in

• *C#/.NET backend development and modern frontend frameworks (Next.js/React)**

, combined with

• *hands-on experience integrating Large Language Models (LLMs)**

into production systems.

This role is ideal for engineers who enjoy building

• *scalable, AI-powered applications**

, designing robust architectures, and working across the full stack (50% backend / 50% frontend).

Key Responsibilities

AI / LLM Integration

• Design and build
• *end-to-end AI pipelines**

using LLM APIs (OpenAI, Azure OpenAI, Anthropic)

• Implement
• *streaming AI responses**

and real-time user experiences

• Apply
• *advanced prompt engineering techniques**

for reliability and performance

• Develop
• *retrieval-augmented generation (RAG)**

and document-processing pipelines

• Improve output quality via
• *evaluation frameworks and hallucination mitigation**
• Build
• *human-in-the-loop workflows**

for AI-assisted systems

• Leverage AI developer tools (Copilot, Cursor, Claude Code) in daily workflows

Backend Development (.NET / C#)

• Build and maintain
• *scalable APIs and microservices**

using .NET (C#)

• Implement
• *asynchronous processing and streaming endpoints**
• Integrate backend services with LLM providers
• Apply
• *clean architecture principles and modern design patterns**

Frontend Development (Next.js / React)

• Develop modern UI using
• *Next.js (App Router)**

and React

• Work with
• *Server Components, Server Actions, and streaming UI patterns**
• Collaborate closely with backend systems to deliver seamless user experiences

System Design & Architecture

• Design and implement
• *distributed, scalable systems**
• Evaluate architectural trade-offs and ensure long-term maintainability
• Contribute to technical decision-making and best practices

Event-Driven Systems

• Build and maintain
• *event-driven workflows**

using tools like Azure Service Bus or RabbitMQ

• Implement
• *asynchronous processing, retries, and message orchestration**

Data & Storage

• Design and optimize
• *NoSQL data models**

(Cosmos DB or similar)

• Handle partitioning, indexing, and performance tuning

Required Qualifications

• Strong experience in
• *C#/.NET backend development**

(APIs, microservices)

• Hands-on experience with
• *LLM APIs in production environments**
• Solid experience with
• *Next.js and React**
• Experience with
• *asynchronous programming and streaming architectures**
• Knowledge of
• *event-driven systems and messaging frameworks**
• Experience with
• *NoSQL databases (Cosmos DB or equivalent)**
• Strong understanding of
• *system design and distributed systems**

Preferred Qualifications

• Experience with
• *Azure ecosystem (Azure OpenAI, Service Bus, Cosmos DB)**
• Built
• *AI-powered applications or RAG-based systems**
• Familiarity with
• *AI evaluation frameworks and guardrails**
• Experience with
• *developer productivity tools (Copilot, Cursor, etc.)**

What We’re Looking For

• A
• *problem solver**

who can design and build end-to-end systems

• Someone comfortable working across
• *backend and frontend (50/50 split)**
• Strong ownership mindset and ability to work in
• *fast-paced environments**
• Passion for
• *AI-driven product development**