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AWS Serverless Transcriber

Summary

Status

In production

Role

System Designer

Stack

Python, AWS Lambda, API Gateway, DynamoDB, AWS S3, Terraform, LLM API integration

Project value

For the user:

  • fast transcription of long audio recordings without uploading to heavy SaaS services;
  • controlled access to results via Cognito and presigned URLs;
  • minimal ongoing costs through a serverless model.

For the professional profile:

  • practical design of an AWS serverless workflow;
  • working with async processing, webhooks, polling UI, and job lifecycle;
  • applying Infrastructure-as-Code through Terraform;
  • choosing solutions based on episodic load and cost constraints (cost-driven architecture).

Quick reading path

  1. Overview - product summary and stack
  2. Context - background and workload profile
  3. Architecture - system design
  4. All-in-one - full case study in one page

Document assemblies

  • All-in-one - all sections assembled for sequential reading and export
  • Architecture review - goals through decisions for architecture review sessions
  • SRS pack - context through operations for SRS-style review
  • Demo pack - overview, role, architecture, decisions, roadmap, and demonstration

Full structure