Senior Full Stack Engineer

Kelly Services; New York (NY); On-site; USD 150,000 - 200,000; Full time

Job summary

Motion Recruitment Partners (MRP) in the United States seeks an experienced software engineer to build AI-powered applications using C#, .NET, and Azure. You will design and implement RAG pipelines and agentic workflows, and integrate LLMs into production systems via APIs, function calling, and tool orchestration.

You will develop backend services and APIs exposing AI capabilities, implement guardrails, validation, observability, and human-in-the-loop workflows, and collaborate with Product,

Qualifications

• 5+ years of software engineering experience.

Responsibilities

• 5+ years of software engineering experience
• Strong C# / .NET and Azure expertise
• Experience building production APIs and backend services
• Hands-on experience with:
• Generative AI / LLM integrations
• Retrieval-Augmented Generation (RAG)
• Agent workflows
• Prompt engineering
• Function & tool calling
• Experience with SQL, enterprise systems, and cloud-native architectures
• Ability to turn AI prototypes into reliable production applications

Skills

C#

.NET

Azure

Backend APIs

Generative AI

RAG pipelines

Agent workflows

Prompt engineering

Function calls

Tools

Azure OpenAI

Azure AI Search

AKS

Cosmos DB

SQL

Docker

GitHub Actions

Azure Functions

Service Bus

Job description

$1500000 - $200000

About the Role

What You'll Do

• Build AI-powered applications using C#, .NET, and Azure.

• Design and implement RAG pipelines and agentic workflows.

• Integrate LLMs into production systems using APIs, function calling, and tool orchestration.

• Develop backend services and APIs that expose AI capabilities.

• Implement guardrails, validation logic, observability, and human-in-the-loop workflows.

• Collaborate with Product, Data, Platform, and AI teams to deliver secure and scalable solutions.

Responsibilities

• 5+ years of software engineering experience

• Strong C# / .NET and Azure expertise

• Experience building production APIs and backend services

• Hands-on experience with:

• Generative AI / LLM integrations

• Retrieval-Augmented Generation (RAG)

• Agent workflows

• Prompt engineering

• Function & tool calling

• Experience with SQL, enterprise systems, and cloud-native architectures

• Ability to turn AI prototypes into reliable production applications

Qualifications

Preferred Technologies

• C#, .NET 8+, ASP.NET Core, Azure OpenAI, Azure AI Search, AKS, Azure Functions, Service Bus, Cosmos DB, SQL, Docker, GitHub Actions/Azure DevOps.

• Experience with Semantic Kernel, LangChain, Copilot Studio, Azure AI Foundry, or similar AI orchestration frameworks is a plus.

Motion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP’s Employment Accommodation policy. Applicants need to make their needs known in advance.