Project Deployment on AWS & Hostinger!

DevOps / Backend Engineer — Full AWS + Hostinger Deployment for Healthcare IoT Platform

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## Overview

We are looking for an experienced DevOps or backend engineer to deploy a multi-service healthcare
IoT platform onto AWS (ap-south-1 / Mumbai region) and Hostinger.

All code is written and tested. This is a *pure deployment job* — no development or debugging of
application logic is required. You will be setting up infrastructure, configuring environment
variables, and getting all services running in production.

A detailed step-by-step deployment guide and a full technical brief will be provided upon hiring.

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## What You Will Deploy

| # | Service | Tech Stack | Hosting |
|---|---------|-----------|---------|
| 1 | REST API + WebSocket Backend | Go (Golang) | AWS EC2 |
| 2 | Blockchain Verification Service | Python / Flask / Web3 | AWS EC2 |
| 3 | Fraud Detection Service (CSV Blob Checker) | Python / Flask / Pandas | AWS EC2 |
| 4 | ECG Feature Extraction Pipeline | Python / SciPy | AWS EC2 (on-demand) |
| 5 | Web Dashboard | React 18 / Vite / TailwindCSS | Hostinger |
| 6 | Insurance Portal Frontend | React 19 / Vite 7 / TailwindCSS | Hostinger |

All EC2 services run on a *single t3.small Ubuntu 22.04 instance* behind Nginx.

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## Infrastructure You Will Set Up

- *AWS RDS* — PostgreSQL 14 database (shared by all services)
- *AWS S3* — Private bucket for CSV evidence file storage
- *AWS EC2* — Ubuntu server, Nginx reverse proxy, systemd services, SSL via Let's Encrypt
- *Polygon Amoy testnet* — Deploy a Solidity smart contract (LogAnchor.sol, already written)
using Remix IDE and MetaMask (no Solidity experience required — it is a one-click deploy)
- *Hostinger* — Upload two pre-built React apps via FTP

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## Credentials / Access We Will Provide

- AWS Console login (scoped IAM user — EC2, RDS, S3 access only)
- AWS S3 access key and secret (for pasting into .env files)
- SMTP credentials for OTP email sending
- Hostinger FTP credentials for both frontend subdomains
- Access to all private GitHub repositories

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## What You Will Generate / Handle Yourself

- RDS master password (you set it, you report it back)
- JWT secret and API keys (generated with openssl rand -hex 32 on the EC2 server)
- MetaMask wallet (new wallet, you create it, export private key, report back)
- Infura account + Polygon Amoy RPC URL (free tier, takes 5 minutes to set up)

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## Required Skills

*Must have:*
- Linux server administration (Ubuntu, systemd, Nginx)
- AWS EC2, RDS, S3 — hands-on experience provisioning and configuring
- Python virtual environments and Flask app deployment
- Go binary compilation and deployment
- SSL certificate setup with Let's Encrypt / Certbot
- React/Vite production builds and static file deployment

*Nice to have:*
- Experience with Web3 / MetaMask / Remix IDE (for smart contract deployment)
- Familiarity with PostgreSQL RDS setup
- Experience with Hostinger or similar shared hosting FTP deployment

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## What Is NOT Required

- Writing any code or modifying application logic
- Solidity or smart contract development knowledge (just a Remix IDE deploy)
- Mobile app deployment
- IoT device setup
- Domain/DNS configuration (already handled on our end)

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## Deliverables

Upon completion you must provide:

- All services running (systemctl status showing active for all three EC2 services)
- Both frontend URLs loading correctly in a browser with no console errors
- A report containing all generated secrets, keys, endpoints, and the EC2 .pem key file
(sent securely via password manager — not email)

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## Project Scope

- *Type*: One-time deployment (not ongoing maintenance)
- *Estimated hours*: 3–4 hours for an experienced engineer
- *Region*: AWS ap-south-1 (Mumbai)
- *Support after delivery*: 48-hour bug-fix window if any service fails to start due to
configuration issues