Applied AI Engineer (C#/.NET) - Hybrid, Scalable AI Features

Oscar Technology; East Midlands; Hybrid; GBP 68,000 - 92,000; Full time

Benefits offered by this job

Hybrid work model

Career progression

AI strategy shaping

Modern engineering culture

Job summary

Oscar Technology is seeking an Applied AI Engineer to design and productionise AI-powered features within a modern .NET platform in Nottingham. The role involves integrating LLMs, building RAG pipelines and APIs, and delivering scalable backend services in a hybrid setup with two days in the office.

You will work with Product, Engineering and Data teams to turn cutting-edge AI into reliable software that delivers real commercial value.

Qualifications

• Commercial backend C#/.NET development experience.
• Experience integrating AI/LLMs into production software.
• Understanding of RAG, embeddings, and vector search.
• Experience building scalable cloud-based applications on Azure.
• Genuine interest in Applied AI and solving real-world product problems.

Responsibilities

• Design and develop AI-powered features within a modern C#/.NET stack.
• Integrate LLMs and Generative AI into customer-facing products.
• Build RAG pipelines using vector databases and semantic search.
• Develop APIs and backend services that support AI functionality at scale.
• Collaborate with Product, Engineering and Data teams to deliver intelligent capabilities.
• Evaluate AI outputs, improve reliability and implement guardrails and monitoring.

Skills

C#/.NET development

AI/LLM integration

Azure cloud

RAG & vector search

API/backend services

Tools

Azure

Azure OpenAI

OpenAI APIs

Semantic Kernel

Vector Databases

Docker

SQL Server

REST APIs

Microservices

Job description

Oscar Technology is seeking an Applied AI Engineer to design and productionise AI-powered features within a modern .NET platform in Nottingham. The role involves integrating LLMs, building RAG pipelines and APIs, and delivering scalable backend services in a hybrid setup with two days in the office.

You will work with Product, Engineering and Data teams to turn cutting-edge AI into reliable software that delivers real commercial value.