Ahsan Z.

Need to scale your legacy .NET application, migrate to AWS Serverless, or build a secure, multi-tenant SaaS platform? As a Principal Software Engineer with 10+ years of enterprise experience (and a Top Rated Plus status representing the top 3% on Upwork), I specialize in rescuing, architecting, and scaling high-performance .NET infrastructure for Fintech and enterprise clients. I don't just write code; I solve complex architectural bottlenecks, reduce cloud costs, and build automated pipelines so your team can ship faster and safer. 🔥 Core Expertise: • Architecture Modernization: Transitioning monolithic apps to Microservices, Clean Architecture, and CQRS patterns using .NET Core , .NET 8, .Net 10. • AWS Cloud & Serverless: Designing auto-scaling cloud-native environments using AWS Lambda, API Gateway, SQS/SNS, and RDS. • DevOps & CI/CD: Setting up zero-downtime deployment pipelines with Kubernetes (K8s), Jenkins, Azure DevOps, and Docker. • Full-Stack Enterprise: Building powerful backends integrated with modern front-ends (Blazor, Angular) and cross-platform apps (MAUI/WPF). • Database Strategy: Multi-tenant database design, optimization, and secure data migration across large-scale environments. 💡 Why work with me? I focus on reducing technical debt and building future-proof systems. Whether you need a fractional CTO to review your architecture, or a lead engineer to deliver a critical milestone, I bring proven leadership and agile execution to the table. Let's schedule a brief discovery call to discuss your system's current bottlenecks and how we can optimize it.