S M Nowshadur Rahaman
Senior Frontend Engineer
Professional Overview
Senior frontend engineer with 11+ years across React, Remix, Angular, Astro, Lit and Web Components. Shipped onboarding SDKs, content platforms, and product UIs with strong attention to performance, SEO, and accessibility.
Core Competencies
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
Professional Experience
AdoptSequence & AdoptIQ (Curtis Digital Inc.) — Remote
Led architecture and platform engineering for two SaaS products: an onboarding/automation platform and an A/V enhancement workflow service.
- Built a public content-sharing system with Astro + Cloudflare Durable Objects; optimized for SEO and low global latency.
- 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
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
Relisource Inc. — Dhaka, Bangladesh
- Actively mentored team members on architecture and clean code practices.
Tech Stack
TypeScript, Angular, AngularJS
Astha IT — Dhaka, Bangladesh
- 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