S M Nowshadur Rahaman

Senior .NET Engineer
+880 1851 836744nowshad.rahaman@gmail.comRampura, Dhaka, BangladeshLinkedIn·GitHub·TopCoder

Professional Overview

Senior .NET engineer with extensive experience in ASP.NET Core, Azure Functions, Cosmos DB, SQL Server, and Azure DevOps. Hybrid background also covers Node.js and modern frontend, giving full-stack range on .NET projects.

Core Competencies

Architecture:Microservices, Serverless, CQRS, SaaS Platforms, Edge-first Design
Cloud Platforms:AWS (Lambda, EC2, S3, RDS, CloudFront, SNS, SES), Azure (Functions, Blob, Cosmos DB), Cloudflare (R2, KV, Durable Objects)
Languages:JavaScript, TypeScript, C#, Python, Java, Go, SQL
Backend:Node.js, .NET Core, Express, HonoJS, Next.js, FastAPI
Data:Microsoft SQL Server, PostgreSQL, MySQL, ClickHouse, Cosmos DB, DynamoDB
DevOps & Observability:CI/CD Pipelines, Docker, Terraform, GitHub Actions, Azure DevOps, Datadog (RUM, Tracing), CloudWatch, App Insights

Professional Experience

AdoptSequence & AdoptIQ (Curtis Digital Inc.) — Remote
Solution ArchitectOct 2023 – May 2025

Led architecture and platform engineering for two SaaS products: an onboarding/automation platform and an A/V enhancement workflow service.

  • Managed multi-repo codebases on GitHub with standardized PR reviews and automation.
  • Mentored junior developers, enforced best practices, and led roadmap execution with founders.
Tech Stack
AWS (Lambda, EC2, S3, RDS, CloudFront), Cloudflare (Workers, Durable Objects, R2)
PostHog, Datadog, CloudWatch, GitHub Actions, Docker
Colliers International (via TopCoder) — Remote
Senior Full-stack DeveloperOct 2021 – Sep 2023

Modernized internal apps for a global commercial real-estate firm, replacing third-party tools with Azure-native and AWS-native services.

  • Replaced a 3rd-party valuation tool with an internal AWS solution (EC2, S3, SES, RDS) in 3 weeks; cut vendor cost ~60–80% and absorbed additional developer cost solo.
  • Architected microservices on Azure Functions backed by Cosmos DB + SQL Server; reduced API p95 latency ~30–50%.
  • Implemented IaC + CI/CD with Terraform and Azure DevOps.
  • Mentored engineers and led POCs with architects/BAs; reduced new-hire ramp ~30–50% and accelerated concept-to-pilot ~2x.
  • Drove code reviews and onboarding standards; PR cycle time −20–35%, post-release defects −20–40%.
Tech Stack
.NET Core, Azure Functions, Cosmos DB, SQL Server, Service Bus
GraphQL, Power BI, Mapbox, Syncfusion
Relisource Inc. — Dhaka, Bangladesh
Senior Software EngineerNov 2018 – Aug 2021
  • Developed a Clinical Trial Management System for a global pharmaceutical client.
  • Built an enterprise LMS platform with mobile support for educational clients.
  • Actively mentored team members on architecture and clean code practices.
Tech Stack
ASP.NET Core, Azure Functions, Azure Service Bus, Microsoft SQL Server
Astha IT — Dhaka, Bangladesh
Senior Software EngineerMar 2014 – Oct 2018
  • Led development for enterprise systems in logistics, education, and fintech.
  • Mentored junior engineers and participated in system architecture, client demos, and delivery cycles.

Education

Bachelor of Computer Science and Engineering
Shahjalal University of Science and Technology · 2013