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I will design database schema and erd for postgresql mysql mongodb
End to End Software Solutions for Every Business Need
Senior Full Stack Engineer with 4.5 years building production web apps in healthcare, booking, fintech, and enterprise management.
Tech: Node.js, React, .NET Core, TypeScript, PostgreSQL, MongoDB, AWS...
About this Gig
I'll design and set up a production-ready database normalized schema,
the right relationships and constraints, indexes that match your real
queries, and an ER diagram plus documentation so anyone on your team can
read the structure.
Database design done right the first time saves you painful migrations
later. I've built and shipped databases for healthcare platforms (patient
records, appointments, prescriptions), e-commerce, booking systems, and
enterprise tools all running in production.
What you get:
Schema design with proper relationships, keys & constraints
Normalization (or intentional denormalization where it helps speed)
Indexes tuned for the queries your app actually runs
ER diagram + clear documentation
Seed / sample data
ORM setup Sequelize, Mongoose, or Entity Framework Core
Migration scripts
Stored procedures & query optimization (Premium)
Databases: PostgreSQL, MySQL, MongoDB, SQL Server.
New build or fixing a messy existing schema message me what your app
does and I'll recommend the right database and design before you order.
Platform:
Firebase
•
MongoDB
•
MySQL
•
PostgreSQL
•
SQLite
•
SQL Server
Expertise:
Design
•
ERD
•
Normalization
•
SQL
•
NoSQL
FAQ
Which database should I choose, PostgreSQL, MySQL, or MongoDB?
Tell me what your app does and I'll recommend the right fit. As a rule of thumb: PostgreSQL for complex relational data and reporting, MySQL for standard web apps, and MongoDB for flexible document-style data. I also work with SQL Server. Nothing is locked in before we discuss it.
I'm not sure which package I need, can you help?
Yes. Message me with a short description of your project and I'll point you to the right tier or send a custom offer. Basic suits a small schema, Standard fits most apps that need indexing and ORM setup, and Premium is for production systems needing migrations, stored procedures, and optimization.
Will I get an ER diagram and documentation?
Yes, every package includes an ER diagram and documentation so you and your team can understand the structure, the relationships, and how to extend it later.
