System architecture & data modeling by John Miniadis

System architecture & data modeling

John Miniadis

Contact for pricing

About this service

Summary

We design scalable system architectures and clean data models that power efficient, future-proof internal tools. Whether you're starting fresh or modernizing legacy systems, Stackdrop ensures your platform is structured for performance, security, and long-term adaptability. We bring deep expertise in balancing Retool’s speed with the architectural thinking required for serious operational growth.

Process

1. Discovery & workflow analysis We start by understanding your data flows, operational needs, scaling requirements, and compliance considerations.

2. Data modeling & system design We create optimized data models and technical blueprints that support your current needs and anticipated growth.

3. Architecture documentation We deliver clear visual diagrams and documentation so your team and stakeholders understand how systems connect and scale.

4. Integration & alignment with Retool builds We ensure Retool apps are built on top of a solid, scalable foundation, not just front-end screens but efficient back-end logic.

5. Scalability & security review We implement architecture best practices around query performance, auth layers, permissioning, and data integrity.

6. Ongoing optimization support (optional) As your operations grow, we help evolve your architecture to handle new teams, features, or business units without technical debt.

FAQs

What’s the difference between system architecture and just building apps?
App-building focuses on the UI; system architecture ensures everything behind it, databases, APIs, automations is designed for performance, scaling, and long-term success. We build both, but great architecture makes a huge difference when companies grow.
Will you also help with database design?
Yes, strong data modeling is a critical part of what we deliver. We design normalized, scalable database schemas that align with your business logic and allow efficient, secure data operations.
How do you make sure our systems can scale over time?
We design modular data models, separate system layers (presentation, logic, data), and create integrations that can be expanded without major rewrites. Plus, we build in monitoring and best practices so you stay ahead of performance bottlenecks.

What's included

Architecture blueprint & diagrams
Visual system design showing how databases, APIs, Retool apps, and workflows interconnect.
Scalable data models
Normalized, efficient database schemas designed for performance, security, and easy extension.
Technical documentation & best practices
Clear documentation explaining design decisions, integration logic, and recommended practices for scaling.

Example projects

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Formula 1 - Ad data warehouse

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Saxo Bank – Marketing OS Development

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AI-Powered Support Platform for a Global Luxury Retailer

Recommendations

(5.0)

Mario Vitiello • The Level Group

Client • Apr 30, 2025

Recommended

We’ve had the pleasure of working with Stackdrop on several automation projects and highly recommend them. They’ve consistently shown great flexibility, quickly adapting to shifting priorities without compromising on quality. Their support is always prompt and reliable, making them a truly dependable partner.

Jim Shirley • FundingHero

Client • Apr 28, 2025

Recommended

John is an absolute superstar! His technical knowledge is second to none and he has an incredibly strategic and pragmatic approach. I couldn't recommend him enough. I've worked with him for over 5 years and he constantly impresses me with his vast knowledge and is one of the smartest out there, has helped design my whole tech stack and his team are absolutely fantastic as well. Highly recommended - incredible to work with!

Jonas Fjordgaard

Client • Apr 24, 2025

Recommended

Saxo Bank has been working with Stackdrop to develop internal marketing tools in Retool. Stackdrop consistently delivers high-quality solutions within short timeframes, demonstrating a strong understanding of our business objectives. Their communication, professionalism, and execution are exemplary. We are pleased to have Stackdrop as a key partner, enabling us to deploy fast and efficient solutions within ever-changing workflows and processes. I offer my highest recommendation of Stackdrop.

Skills and tools

Database Engineer

Data Engineer

Systems Engineer