This is a remote position.
Job SummaryWe are seeking a highly skilled C#/.NET Developer with hands-on experience in building AI-powered applications using Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) architectures. The ideal candidate will have strong expertise in developing scalable .NET applications, integrating AI services through APIs, and building enterprise-grade AI solutions.
The candidate should have experience working with modern AI frameworks, vector databases, prompt engineering, and API management platforms to deliver intelligent, secure, and scalable applications.
- Design, develop, and maintain enterprise applications using C#, .NET Core/.NET 8, and ASP.NET Core.
- Build AI-powered applications leveraging Large Language Models (LLMs) such as Azure OpenAI, OpenAI, Anthropic Claude, or Google Gemini.
- Design and implement Retrieval-Augmented Generation (RAG) solutions using enterprise knowledge bases and vector databases.
- Develop and integrate RESTful APIs for AI services and third-party applications.
- Work with API gateways and API management platforms (e.g., Gravitee, Kong, Azure API Management, Apigee).
- Develop scalable backend services for AI inference, document processing, and conversational applications.
- Implement secure authentication and authorization using OAuth2, JWT, and Azure Active Directory.
- Collaborate with architects, product owners, and cross-functional teams to translate business requirements into technical solutions.
- Optimize application performance, scalability, and reliability.
- Participate in code reviews, unit testing, CI/CD deployments, and Agile ceremonies.
- Create technical documentation and support production deployments.
- 5+ years of experience in C#/.NET application development.
- Strong expertise in C#, .NET Core/.NET 6+, ASP.NET Core, and REST API development.
- Hands-on experience integrating Large Language Models (LLMs) into enterprise applications.
- Practical experience designing and implementing RAG (Retrieval-Augmented Generation) solutions.
- Experience consuming AI services through REST APIs and SDKs.
- Knowledge of prompt engineering and AI application development patterns.
- Strong understanding of object-oriented programming, design patterns, and microservices architecture.
- Experience with SQL Server or other relational databases.
- Proficiency with Git and CI/CD tools such as Azure DevOps or GitHub Actions.
- Experience working in Agile/Scrum environments.
Skills Required
- Deep experience building robust back-end services, SDKs, and integration layers in C#/.NET
- Hands-on experience with the Model Context Protocol (MCP)
- Proficiency in Gravitee API Management (APIM)
- Expert knowledge of REST, OpenAPI/Swagger, and asynchronous event-driven architectures
- Understanding of LLM tooling and prompt engineering
What We Do
Etech Global Services is a provider of comprehensive business process outsourcing and omnichannel customer engagement solutions, specializing in contact centers, data analytics, and technology services.
