Principal .NET Backend Engineer

Appsierra • IT Outsourcing & Dedicated Teams • Software Testing & QA • SQL • C# • 8 days ago
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Salary
≈ $85k – $202k per year (Estimated)
Location
Remote (likely India)
Seniority
Principal
Employment
Full-Time

First seen by Alion on Sep 23, 2026.

Overview
Company
Impact
Profile match

Appsierra

AI-first engineering pods for QA, AI and LLM work, backend, data and frontend deployment. Vetted senior engineers, productive in about 7 days.
appsierra.com • Gurgaon • Chennai • Noida • Bengaluru • Mumbai • IT Staffing & Staff Augmentation • AI Consulting & Integration • Software Testing & QA • IT Outsourcing & Dedicated Teams

We are looking for an experienced Principal .NET Backend Architect to design, develop, and lead enterprise-scale backend applications using ASP.NET Core, C#, Microservices, and Microsoft Azure.

Responsibilities

  • Design and develop scalable backend applications using ASP.NET Core and C#.
  • Architect cloud-native microservices and distributed systems on Microsoft Azure.
  • Design secure, high-performance REST APIs and event-driven applications.
  • Lead architecture discussions, code reviews, and technical mentoring.
  • Design and implement messaging solutions using Azure Service Bus.
  • Troubleshoot production issues, perform RCA, and optimize application performance.
  • Collaborate with DevOps teams on CI/CD, AKS deployments, and cloud infrastructure.
  • Establish engineering standards, best practices, and architectural guidelines.
  • Review AI-generated code and ensure alignment with enterprise architecture standards.

Required Skills

  • C#, .NET 8 / .NET Core
  • ASP.NET Core Web API, Middleware, Dependency Injection, Background Services, SignalR, gRPC
  • Microservices, Distributed Systems, Event-Driven Architecture, Clean Architecture, SOLID, DDD, CQRS, API Gateway
  • Azure App Services, Azure Kubernetes Service (AKS), Azure API Management, Azure Service Bus
  • SQL Server, Azure SQL, Cosmos DB, Entity Framework Core, Dapper, Azure Redis Cache
  • Azure Key Vault, Azure Blob Storage, Azure Monitor, Azure Application Insights
  • Docker, Kubernetes, CI/CD, Azure DevOps, Terraform / Bicep
  • JWT, OAuth2, OpenID Connect, Microsoft Entra ID, OWASP Top 10
  • Performance optimization, multithreading, async programming, production debugging, RCA

Preferred Interview Topics

  • System Design
  • Microservices Architecture
  • OOP & Design Patterns (Strategy, Factory)
  • Dependency Injection
  • ASP.NET Core Middleware
  • Parallel File Processing
  • Distributed Systems
  • Azure Architecture
  • Production Troubleshooting
  • AI-Assisted Development

Soft Skills

  • Technical Leadership
  • Solution Architecture
  • Problem Solving
  • Code Reviews & Mentoring
  • Stakeholder Management
  • Agile Delivery
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