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W2 Only | Senior .NET/C# Engineer with AI | Coppell, TX | Onsite | Long Term

TMS LLCCoppell, TX🇺🇸United StatesPosted 28 Aug 2026

Why This Role Stands Out

This long-term, onsite role offers an exciting opportunity to lead the development of cutting-edge AI solutions using .NET and C#, driving significant innovation within a reputable company. You'll thrive here if you're a seasoned engineer with a passion for AI, eager to expand your skills in prompt engineering, RAG, and intelligent agent development. Apply now to make a substantial impact and advance your career in a dynamic tech environment.

Quick Overview

Seniority
Leader
Employment type
Contract
Work mode
On Site
Location
Coppell, TX, United States
Posted
5 days ago
MicroservicesMachine LearningNLPAgileAzureC#.NETGenerative AIGitLLM

Job Description

Role: Senior Software Engineer (.NET/ C#) with AI

Duration: Long Term

Location: Coppell, TX- Onsite

 

We are seeking a highly skilled and forward-thinking Senior Software Engineer with over 9 years of experience in designing and developing enterprise-grade solutions using .NET and C#, and at least 1 year of hands-on experience building AI solutions and intelligent agents on the Microsoft platform. The ideal candidate will be passionate about leveraging Prompt EngineeringContext Engineering, RAG, Vectorization & Indexing, and modern AI techniques to drive innovation and efficiency across our technology stack.

 

Key Responsibilities

  • Design, develop, and maintain scalable .NET/C# applications and services.
  • Design and implement AI-powered solutions using Microsoft Azure AI services, including Azure OpenAI, Azure AI Foundry, Cognitive Services and Microsoft Agent Framework.
  • Build and deploy intelligent agents that integrate with enterprise systems and workflows.
  • Apply prompt engineering and context engineering to optimize agent behavior and model outputs.
  • Integrate retrieval-augmented generation (RAG) pipelines to enhance agent knowledge and responsiveness.
  • Leverage tool use orchestration and action planning to enable agents to interact with external systems and APIs.
  • Implement memory management strategies for agents (episodic, semantic, and working memory).
  • Use state managementgoal tracking, and feedback loops to support autonomous decision-making.
  • Evaluate and verify AI agents using various techniques and tools.
  • Collaborate with cross-functional teams including product managers, data scientists, and DevOps to deliver high-impact solutions.
  • Conduct code reviews, mentor junior engineers, and contribute to best practices in software development and AI integration.
  • Stay current with emerging technologies and trends in AI, machine learning, and software engineering.

 

Required Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
  • 9+ years of experience in software development using .NET and C#.
  • 1+ years of experience developing AI solutions and agents using Microsoft technologies.
  • Strong understanding of prompt engineering, context engineering, and LLM-based architectures.
  • Experience with RESTful APIs, microservices, and cloud-native development.
  • Familiarity with CI/CD pipelines, Git, and agile methodologies.
  • Excellent problem-solving, communication, and collaboration skills.

 

Preferred Qualifications

  • Experience with Azure OpenAI, Azure AI Foundry, Semantic Kernal Framework, AutoGen, Lang Graph, Machine Learning, or other Microsoft AI platforms.
  • Knowledge of NLP, generative AI, and conversational agent design.
  • Certifications in Microsoft Azure or AI-related technologies.
  • Contributions to open-source projects or technical blogs.

All your information will be kept confidential according to EEO guidelines.

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