> Markdown version of [/jobs/ext/4361193-sr-software-engineer-r-d](https://www.wearedevelopers.com/jobs/ext/4361193-sr-software-engineer-r-d). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Software Engineer R&D - **Company:** SPERIA DYNAMICS LLC - **Location:** Atlanta, GA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** ASP.NET, JavaScript (Programming Language), .NET Framework, Application Performance Management, Microsoft Azure, C Sharp (Programming Language), Software as a Service, Code Review, Continuous Integration, Software Design Documents, Programming Tools, Distributed Systems, Key Management, SQL Azure, OAuth, OpenID, OpenAI, Software Engineering, Enterprise Search, Azure Service Bus, RxJS, Enterprise Software Applications, Retrieval-Augmented Generation, Large Language Models, Apache Spark, Cypress (Programming Language), Backend, Agentic-AI, Servicebus, Build Management, AngularJS, Cosmos DB, Invoking Functions, Semantic Kernel, Software Version Control, Sql Tuning, Key Vault, Databricks, Web Api - **Published:** October 4, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=288d869ba50be299 ## About the Role * B.S. in CS or related field (or equivalent experience). * 5+ years building production software; strong C#/.NET (ASP.NET Core, Web APIs). * Azure experience with at least two: App Service/Functions, Service Bus/Queues, Storage, Azure SQL (EF Core), Cosmos DB, Key Vault. * Solid software design fundamentals (DDD where it helps, SOLID), async/distributed systems, and performance profiling. * CI/CD with Azure DevOps (pipelines, environments * Practical security/auth: OAuth 2.0/OIDC, service-to-service auth, secrets management. * Proficient written/spoken English for specs, design reviews, and cross-team collaboration Nice to have * Semantic Kernel in production (plugins/tools, agentic patterns), Azure OpenAI or other LLM providers; RAG with Azure AI Search * Angular (v15+), RxJS, Nx; Ionic for mobile. * Messaging & jobs: NServiceBus, Azure Service Bus, Hangfire/Durable Functions. * Observability: Application Insights, OpenTelemetry. * Data/analytics: SQL tuning, Power BI Embedded, Databricks/Spark. * Feature flags (LaunchDarkly), domain eventing, multi-tenant SaaS experience. ## Description We are looking for a Software Development Engineer to join the R&D team. Our team is looking for a motivated professional who is skilled in software development, delivering high quality products, and building multifaceted enterprise applications for a diverse and growing international client base. We are proud to foster a workplace that promotes teamwork, advanced development tools, training, and continuous engagement with senior and executive management. What you'll do * Design and build backend services and internal libraries in .NET/ASP.NET Core; evolve prototypes into reliable, observable services. * Build quick POCs for agents/workflows using Semantic Kernel (function calling, plugins, tool orchestration, prompt/version management, RAG). * Implement cloud-native patterns on Azure (App Service/Functions, Storage, Service Bus, Azure SQL/Cosmos DB) with CI/CD in Azure DevOps. * Ship high-quality Angular components and internal tooling (Nx monorepo, Jest/Cypress). * Contribute through design docs, code reviews, and mentorship; raise the bar on