Senior Software Engineer - R&D for Innovative Tech Solutions

About the Role

We are looking for a Senior Software Engineer - R&D to join our innovative team at MTech Systems. This Senior Software Engineer remote position is perfect for a highly motivated developer who is passionate about building robust, scalable enterprise applications. You will play a crucial role in shaping and delivering high-quality software used by a diverse and rapidly growing international customer base.

What You’ll Do

• Design and build backend services and internal libraries using .NET / ASP.NET Core, transforming prototypes into reliable, observable, production-ready services.
• Develop rapid POCs for agents and workflows using Semantic Kernel (function calling, plugin/tool orchestration, prompt management, RAG, version control).
• Implement cloud-native solutions on Azure, including App Services/Functions, Storage, Service Bus, Azure SQL, and Cosmos DB, supported by CI/CD pipelines in Azure DevOps.
• (Optional) Build high-quality Angular components and internal tooling within an Nx monorepo using Jest/Cypress.
• Contribute through design documents, code reviews, mentorship, and proactive improvement of reliability, performance, and developer experience.

Requirements

• B.S. in Computer Science or related field (or equivalent professional experience).
• 5+ years of production software experience with strong proficiency in C#/.NET, including ASP.NET Core and Web APIs.
• Hands-on expertise with Azure, with experience in at least two of the following: App Service / Functions, Service Bus / Queues, Storage, Azure SQL (EF Core), Cosmos DB, Key Vault.
• Strong understanding of software design principles (e.g., SOLID, DDD where applicable), asynchronous patterns, distributed systems, and performance profiling.
• Experience building and maintaining CI/CD pipelines in Azure DevOps.
• Practical knowledge of security and authentication: OAuth 2.0, OIDC, service-to-service authentication, and secrets management.
• Proficient written and spoken English for collaboration, design reviews, and documentation.

Nice to Have

• Experience using Semantic Kernel in production (plugins/tools, agent patterns), Azure OpenAI, or other LLM providers; RAG using Azure AI Search.
• Frontend experience with Angular (v15+), RxJS, Nx, or Ionic for mobile.
• Experience with distributed messaging and job orchestration: NServiceBus, Azure Service Bus, Hangfire, Durable Functions.
• Observability tooling: Application Insights, OpenTelemetry.
• Data/analytics exposure: SQL performance tuning, Power BI Embedded, Databricks/Spark.
• Experience with feature flags (LaunchDarkly), domain eventing, or multi-tenant SaaS systems.

What We Offer

• Competitive salary and benefits package.
• Flexible remote work environment.
• Opportunities for professional growth and development.
• A collaborative and innovative team culture.
• Access to leadership and ongoing engagement.