S M Nowshadur Rahaman

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

Professional Overview

Senior JavaScript/TypeScript engineer with 11+ years across Node.js, React, Remix, Next.js, Astro, Lit, and the broader npm ecosystem. Experienced in both product engineering and platform/SDK work.

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
Frontend:React, Remix, Angular, Lit, Astro
Backend:Node.js, .NET Core, Express, HonoJS, Next.js, FastAPI
Realtime:Kafka, Redis, Supabase, RabbitMQ, Ably
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.

  • Led backend migration of AdoptSequence from AWS Lambda → Trigger.dev to support long-running video processing.
  • Built a public content-sharing system with Astro + Cloudflare Durable Objects; optimized for SEO and low global latency.
  • Integrated Supabase for real-time sync and Postgres storage; replaced Ably, lowering latency and cost.
  • Developed a modular onboarding SDK (Shadow DOM → Lit Web Components) and a lightweight Chrome extension to test/debug onboarding flows.
  • Managed multi-repo codebases on GitHub with standardized PR reviews and automation.
  • Mentored junior developers, enforced best practices, and led roadmap execution with founders.
  • Integrated Clerk authentication across multiple applications.
Tech Stack
TypeScript, JavaScript, Node.js, React, Remix, Lit, Astro, Next.js
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.

  • Modernized Angular apps (major version upgrades + module refactors); build time reduced 25–40%, unit test coverage to 90%.
  • Migrated Google Maps → Mapbox, added static-map support for exported documents.
  • 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
Angular, TypeScript
GraphQL, Power BI, Mapbox, Syncfusion
NestJS, MySQL
Relisource Inc. — Dhaka, Bangladesh
Senior Software EngineerNov 2018 – Aug 2021
  • Actively mentored team members on architecture and clean code practices.
Tech Stack
TypeScript, Angular, AngularJS
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