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SAAS ARCHITECTURE · MARRAKECH · 21 YEARS OF EXPERIENCE

Your SaaS deserves
a 2026 architecture,
not a 2015 one.

4YA designs React 19 / Vite / Go / Cloudflare Edge SaaS architectures — for products that scale without breaking, even at 10× the initial traffic. Firm based in Marrakech, clients all over Morocco and internationally.

Audit my architecture → Read 21 years of lessons

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What sets us apart from a "web agency"

4YA is an engineering firm — not an agency. The distinction is not just semantics.

21
Years of international experience
3
Continents · projects delivered
0
Untested "framework of the moment"
Go
Main backend — not Node.js
Edge
First deploy, not the last
AI
Built into the architecture, not bolted on

Our 6 SaaS architecture principles in 2026

What every serious architecture must respect — and what most agencies ignore.

PERFORMANCE

Edge-First by default

Static assets, stateless APIs and SSR rendering run on Cloudflare Workers — not on a VPS in Frankfurt. Result: TTFB <50ms for your Moroccan users.

BACKEND

Go for critical APIs

Node.js is great for prototyping. Go is built for production: 10× more concurrency, stable memory, single binary. For sensitive or high-frequency data endpoints, Go is the rational choice.

FRONTEND

React 19 + Vite — zero bundler debt

Vite replaces Create React App. 50× faster build, instant HMR, automatic code-splitting. React 19 with Server Components for data-heavy views.

DATA

PostgreSQL + pgvector

A single engine for transactional data AND vector search (RAG). No Redis + Pinecone + MongoDB stack to manage. Less attack surface, lower cost, more consistency.

AI

Agentic-ready by design

AI is not a module to plug into an existing SaaS. It needs a specific data, event and audit architecture. We design for that from day 1.

SECURITY

CNDP Compliance by Design

PII encryption, immutable audit trail, granular RBAC, automatable right-to-erasure. Not features bolted on later — architectural constraints.

The 4YA technical stack in 2026

Each choice is justified by performance data — not by social-media noise.

Frontend
React 19 + Vite 6
Server Components, Concurrent Rendering, build <8s for 500K LOC
Prod-proven
Backend API
Go 1.23 (net/http + chi)
50K req/s on t3.medium, RSS <30MB, single-binary deployment
Prod-proven
Edge Runtime
Cloudflare Workers + Pages
310 PoP, TTFB <50ms Morocco, native DDoS, $0 up to 100K req/day
Recommended
Database
PostgreSQL 17 + pgvector
ACID + RAG vector search in the same engine — simplified stack
Prod-proven
Cache
Cloudflare KV + Upstash Redis
KV for edge assets, serverless Redis for sessions and rate-limiting
Recommended
AI Agents
LangGraph + sovereign vLLM
Stateful agents with private LLM — zero external API dependency
4YA-native
CI/CD
GitHub Actions + Cloudflare Builds
Deploy-on-push, automatic preview URLs, rollback in <30s
Prod-proven
Observability
Cloudflare Analytics + Sentry
Distributed traces, real-time Core Web Vitals, SLA alerts
Included

What a typical agency delivers vs. 4YA

The difference between a vendor who codes and an architect who thinks 3 years ahead.

❌ Typical agency
  • WordPress or "custom" Laravel for a B2B SaaS
  • Untyped Node.js Express for critical APIs
  • Create React App (abandoned since 2023)
  • Database picked by habit (MySQL 5.7)
  • Deployment on an OVH VPS with no CDN
  • AI added "as an option" via direct OpenAI API
  • No audit trail or RBAC in the initial architecture
  • Deliverables: code only, no architecture documentation
✅ 4YA Engineering
  • React + Vite + Go — stack chosen on the metrics of your case
  • Strict TypeScript everywhere, zero any
  • Data architecture designed for scalability from D1
  • Edge-first: Cloudflare Workers for <50ms TTFB Morocco
  • AI built into the architecture — sovereign LLM, not external API
  • CNDP by design: audit trail, erasure, PII encryption
  • ADR (Architecture Decision Records) for every technical choice
  • Knowledge transfer included — you are not held hostage

The experience behind 4YA

Not an agency of fresh graduates. A firm founded by an architect with 21 years on the ground.

AV

Ali Abdel Aziz

4YA — software engineering firm · Marrakech

21 years of software engineering experience across 3 continents — from pre-seed startups to Series B scale-ups. Specialised in distributed architectures, LLMOps and edge systems. Founder of 4YA, based in Marrakech since 2020. Acts as principal architect on every 4YA engagement — no subcontracting.

21 yrs XP SaaS ArchitectureLLMOpsGoReactCloudflare Edgen8nLangGraphCNDP

Frequently asked questions

Why pick Go over Node.js for a SaaS in 2026?
Go handles 10× more concurrent requests than Node.js Express on the same hardware, with 5× lower memory consumption. There is no single-threaded event loop to saturate. For APIs touching financial or real-time data, Go's latency predictability has no equivalent in Node. We use Node when the context justifies it (Next.js SSR, tooling) — but never by default.
What is the advantage of Cloudflare Workers for a Moroccan SaaS?
Cloudflare deploys your code on 310+ global points of presence, including Casablanca. Your Moroccan users get a TTFB <50ms — versus 120-200ms for a server in Frankfurt. Bonus: native DDoS protection, WAF, analytics, automatic deploy on git push, preview URLs. All for $5/month or less depending on volume. No VPS to maintain.
Does 4YA take on projects outside Marrakech?
Yes. We work remote-first. Our clients are in Casablanca, Rabat, Agadir, and internationally. Scoping meetings and architecture presentations happen over video. For complex projects, an on-site visit can be arranged in Casablanca or in your city.
How does a first contact work?
Through our AI assistant on /securechat — describe your project, your current stack and your main problem. Our assistant asks the relevant technical questions and forwards a synthesis to the 4YA team. You receive a reply with an initial analysis within 24h.

Let's build your SaaS architecture.

Audit of an existing system or greenfield — describe your project to our assistant. Technical reply within 24h.

Start the analysis → Contact directly

Based in Marrakech · Clients all over Morocco · No commitment