What are the responsibilities and job description for the .Net Developer/ Architect position at eSolutionsFirst, LLC?
.Net Architect/ Developer
12 Months contract – Extension long term Contract
Location: Vienna, VA
Job description:
Architecture & Design:
- Own the end-to-end solution architecture across Production Scheduling, Production Execution, and Allocation Rules Engine modules
- Define and enforce architectural patterns: three-tier (Next.js → Azure Functions → Azure SQL), RTK Query slice conventions, schema name spacing, and DEP integration contracts
- Lead database schema design (SSDT projects, Azure SQL) and API contract definition (OpenAPI/Swagger) across all modules
- Architect real-time subsystems: SignalR hub for check-weigher events, Azure Service Bus Premium queuing for NAV output posting, and retry/dead-letter strategies
- Design the Allocation Rules Engine evaluation pipeline for sub-200ms P99 latency and batch-evaluation throughput
Required skills :
- 8 years of software development experience, with 2 years in a Solution Architect or Lead Architect role
- Deep expertise in Azure-native architectures: Azure Function Apps (isolated worker model), Azure SQL, Azure Service Bus, Azure AD / MSAL (OAuth2/OIDC)
- Strong C# .NET 8 — Azure Functions, Entity Framework Core, xUnit testing, REST API design
- Strong React / TypeScript / Next.js 15 — App Router, RTK Query, Tailwind CSS, component library patterns
- Azure SQL / SQL Server schema design — SSDT projects, query optimization, multi-tenant schema isolation
- Experience integrating with ERP systems (Microsoft Dynamics NAV / Business Central strongly preferred)
- Proven experience designing real-time systems (SignalR, WebSockets, or equivalent)
- OpenAPI/Swagger specification authoring and API contract-first development
AI & Tooling
- Hands-on experience with Claude Code, GitHub Copilot, or equivalent AI coding assistants in production development workflows
- Demonstrated ability to prompt LLMs effectively using structured specifications and to critically evaluate generated output
- Familiarity with AI-assisted test generation and automated code review tooling
Architecture & Process:
- Track record delivering complex, multi-module web applications end-to-end
- Experience with message-driven integration patterns (Azure Service Bus, event-driven architecture, dead-letter handling)
- Observability and monitoring: Application Insights instrumentation, custom metrics, alerting design