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// Enterprise software engineering

Systems engineered for operators who cannot afford downtime.

Codetier Systems designs and delivers high-throughput web platforms and zero-bloat native desktop terminals. Fixed architecture, typed contracts, sovereign handover.

Uptime
99.98%
p95 Query
84ms
Binary Size
7.4 MB
Handover
100%
// Stack

The technology stack, chosen for consequence — not convenience.

Three layers. Each selected because it removes an entire class of failure from the system, not because it trends well.

01

Frontend Pipelines

Server-first rendering pipelines built on the App Router. Streamed payloads, strict component boundaries, and zero client-side waterfalls.

  • React 19
  • Next.js App Router
  • Tailwind CSS
  • RSC

Median LCP 0.9s across audited deployments

02

Native Terminals

Zero-bloat cross-platform desktop clients compiled to native binaries. Rust core, system webview, offline by default.

  • Tauri v2
  • Rust
  • IPC Commands
  • Auto-Update

Shipped installers under 8 MB — Windows, macOS, Linux

03

Data & State

Deterministic state machines on the client, normalized persistence on the edge. Every mutation is typed, traced, and reversible.

  • Redux Toolkit
  • SQLite
  • Supabase
  • Postgres RLS

Row-level policies enforced at the database boundary

// FULL-STACK PIPELINE

End-to-end typed execution. From native core to client runtime.

We engineer vertically integrated systems. From memory-safe database connection pools at the metal, through observable network telemetry, up to strict frontend runtimes—every layer is monitored, typed, and engineered for zero degradation.

Code editor window displaying a Rust file named architecture.rs with an asynchronous database query implementationNetwork Layer dashboard panel showing 99.98% server uptime, 84ms database query latency, and a bar chart of request volumeCompiled Stack status panel indicating the frontend runtime, database layer, message queue, and cache layer are all operational with zero degradation
// Architectures

Proven architectures, running in production.

Two systems, two entirely different failure domains. Both delivered as sovereign infrastructure the client fully controls.

Case B2026

QuotationApp

Native Desktop Invoice Terminal

An offline-first quotation and invoicing terminal for field operations. Native binary, local SQLite ledger, deterministic sync when connectivity returns.

Technical challenge

  • Full offline authoring with conflict-free reconciliation on reconnect.
  • Deterministic PDF generation identical across Windows, macOS and Linux.
  • A 7.4 MB signed installer with auto-update, replacing a 180 MB Electron client
Installer
7.4 MB
Cold Start
310ms
Memory
62 MB
Tauri v2RustSQLiteRedux Toolkit
// Protocol

The engineering protocol.

Four phases, executed in order, with no phase compressed to hit a demo date. This sequence is the product.

  1. 01

    Architecture Audit

    We read the system before we touch it. Data flow, boundaries, latency budgets, and the failure modes nobody documented. Output: a written verdict, not a sales deck.

    • Latency Budget
    • Risk Register
  2. 02

    System Blueprinting

    Schemas, module boundaries, state ownership and deployment topology are settled on paper first. Every interface is decided before the first line of production code exists.

    • Schema Contract
    • Module Graph
  3. 03

    Zero-Fault Execution

    Strict typing end to end, no unowned state, no speculative abstractions. Every merge is reviewed against the blueprint — deviation requires an amendment, not a shortcut.

    • Typed Contracts
    • Review Gates
  4. 04

    Sovereign Deployment

    You own the repository, the pipeline, the database and the signing keys. We hand over an operable system with runbooks — not a dependency on us.

    • Runbooks
    • Key Handover
// Principal

The principal architect.

One accountable engineer on the architecture. No layered account management, no handoff to an unnamed delivery pool.

Portrait of the principal architect of Codetier Systems

Cairo · Remote · GMT+2

Lead Engineer

Ahmed Elbanhawy

A foundation in Business Information Systems means the architecture starts from the operational reality of the business — procurement cycles, approval chains, margin calculations — rather than from a framework preference.

That foundation was formalised through an M.Sc. in Software Engineering at Cairo University, with work concentrated on distributed system correctness and the performance characteristics of native application shells.

The result is a narrow practice: high-throughput B2B web platforms and native desktop terminals, engineered to be handed over and operated by the client independently.

Foundation
B.Sc. Business Information Systems
Graduate
M.Sc. Software Engineering — Cairo University
Domain
Industrial B2B · Fintech Operations
Discipline
Systems Architecture · Native Clients
Review architectures
// Open for engagement

Send the constraints. Receive an architecture.

Every engagement opens with a written systems brief — throughput targets, failure budgets, and handover terms defined before a single line is committed.