I will design and build scalable backend architecture on AWS

H
hemanthawijegun
H
hemanthawijegun
Hemantha W
design and build scalable backend architecture on AWS
design and build scalable backend architecture on AWS
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design and build scalable backend architecture on AWSdesign and build scalable backend architecture on AWSdesign and build scalable backend architecture on AWSdesign and build scalable backend architecture on AWS

About this gig

Is your app getting slow, hard to change, or ready to scale? Ill design and build a backend that grows with you.


Im a Full-Stack Engineer and Tech Lead with 8+ years of experience. Ive built platforms that processed 40M+ records on AWS.


What I build:


  • REST APIs and microservices with NestJS + TypeScript
  • Event-driven systems with SQS, SNS or RabbitMQ
  • Serverless backends with Lambda, S3 and AWS CDK
  • RAG and AI features on top of your data


You get:


Clear architecture diagram and plan

Clean, tested, documented code

Full source code ownership


Please message me before ordering so we can discuss your system.

  • Programming language

    • TypeScript

  • Expertise

    • Algorithms & Data structures
    • Performance
    • Security
    • Design
    • Testing procedures

  • Frontend framework

    • Bootstrap
    • jQuery
    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Express.js
    • NestJS
    • Next.js
    • Node.js

  • AI & low/no code builders

    • Claude
    • Cursor

Get to know Hemantha W

Hemantha W

Senior Full Stack and AI Engineer

  • FromSri Lanka
  • Member sinceNov 2021
  • Avg. response time1 hour

  • Languages

    English
Hi, I'm Hemantha, a Full-Stack Engineer and Tech Lead with 8+ years of experience building SaaS products for clients in the UK, Australia, Sri Lanka and the USA. I build fast, scalable web apps with React, Next.js, Node.js and NestJS, deployed on AWS. I also build AI features: RAG chatbots, LLM integrations with OpenAI, and AI-powered data processing (one of my platforms has analysed 40M+ reviews). Clean code, clear communication and on-time delivery. Message me before ordering so we can scope your project.

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