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Architecture · PostgreSQL · Vector DBs

The decisions you can't easily
walk back later.

The wrong data model or an architecture decision made too early can cost months to fix years later. We plan system architecture and database design, including vector databases for AI and search applications, before the first line of application code gets written.

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Why Zeitcode for system & DB design

Architecture decisions drawn from real projects with high data volumes and strict requirements for traceability.

Experience

Architecture for systems that need to grow

Designing storage and integration systems connected to external third-party systems, built for data volumes that increase substantially over time.

Vector databases

Ready for AI and search applications

Building semantic search over large data volumes with vector databases like Qdrant, for use cases where classic databases hit their limits.

Traceability

Architecture that's documented and explainable

Clear entity relationships, traceable migrations, and a structure a new team member can understand without weeks of onboarding.

Reporting

Data that's actually usable for analysis

Data models that don't just serve the application but also enable clean reporting and dashboards, for example with Power BI.

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Data model

A foundation that grows with you

You don't notice good architecture right away. You notice it two years in, when new requirements land and the system still holds.

Relational

Cleanly normalized data models

PostgreSQL and other relational databases with thoughtful normalization, indexing, and constraints that ensure data integrity instead of data chaos.

Vector DBs

Embeddings and semantic search planned in

When AI-powered search or recommendations are on the roadmap, the data model is prepared for that from the start instead of being retrofitted painfully later.

System boundaries

Clear interfaces between services

A clean split of which system owns which data and how services talk to each other, so a change in one place doesn't put the whole system at risk.

Scaling

Performance even as data volume grows

Indexing strategies, partitioning, and caching applied where they actually help, instead of premature optimization in the wrong place.

Process

How your architecture project runs

Four phases, from requirements analysis to documented hand-off.

  1. Phase 1

    Requirements

    Business domain & data flows

    • ✓Capture business entities and relationships
    • ✓Map data flows between systems
  2. Phase 2

    Modeling

    Data model & technology choice

    • ✓Combine relational and, where useful, vector databases
    • ✓Normalization and indexing planned, not guessed
  3. Phase 3

    Validation

    Prototype & load testing

    • ✓Test critical queries against realistic data volumes
    • ✓Catch bottlenecks before going to production
  4. Phase 4

    Hand-off

    Documentation & team hand-off

    • ✓Architecture and data-model documentation
    • ✓Hand-off to your development team
  1. Phase 1

    Requirements

    Business domain & data flows

    • ✓Capture business entities and relationships
    • ✓Map data flows between systems
  2. Phase 2

    Modeling

    Data model & technology choice

    • ✓Combine relational and, where useful, vector databases
    • ✓Normalization and indexing planned, not guessed
  3. Phase 3

    Validation

    Prototype & load testing

    • ✓Test critical queries against realistic data volumes
    • ✓Catch bottlenecks before going to production
  4. Phase 4

    Hand-off

    Documentation & team hand-off

    • ✓Architecture and data-model documentation
    • ✓Hand-off to your development team

Step by step, with clear outcomes per phase.

Testimonials

Voices from architecture projects

Short excerpts from projects where getting the foundation right saved a lot of effort later.

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A data model that still fits two years later

“We spent a lot of time upfront on data modeling and wondered if it was necessary. Two years and three times the data later, that time paid off many times over — the system never needed a fundamental rebuild.”

C. M.
Engineering Lead
Vector search planned in cleanly from the start

“We wanted semantic search from day one but didn't know how to integrate it cleanly into our existing data model. The solution fits in seamlessly instead of feeling like a bolted-on afterthought.”

B. A.
Product Owner
What we often hear
  • ✓A data model that still holds up after significant growth
  • ✓Clear documentation instead of knowledge trapped in one person's head
  • ✓Vector search and a classic database combined cleanly
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FAQ

Questions about system & DB design

Answers on database choice, vector databases, and the typical process.

Still have a question?→

Next step

A system built on a solid foundation?

In the intro call we look at your business domain and clarify which data model and architecture genuinely fit.

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