Skip to content
Ahmed Naeim Get in touch
Available for select freelance work

Senior Backend Engineer

I build the backend infrastructure enterprises trust with their most critical data.

Failure modes before features. I come at systems infrastructure-first — an instinct carried over from a Mechatronics background — so the things that matter quietly keep working under pressure.

View work Get in touch
Cairo, Egypt · Remote (EST / CET) & Gulf

How I work

01 / Integrity

Data integrity before features.

02 / Foundation

Infrastructure-first, always.

03 / Resilience

Observable & recoverable under pressure.

04 / Proof

Tested against real production conditions.

Selected work

Project 01 Hero project Deployed · In active use

Nizam ERP

Arabic-first, multi-tenant ERP for Gulf construction companies.

The problem

Large contractors bleed money because no single place shows what's happening across dozens of simultaneous projects.

What I built

A complete HR, payroll, accounting and reporting platform — Arabic-native and right-to-left from the ground up, with Saudi compliance (ZATCA, GOSI, WPS/Mudad, Nitaqat) built into the workflow, not bolted on.

Database-per-tenant isolation for hard data boundaries; a Transactional Outbox for reliable event delivery; PostgreSQL Row-Level Security and triggers enforcing invariants at the data layer; GIN / trigram indexes for fast fuzzy Arabic search; a declarative report engine; and zero-downtime SystemD deployments.

  • Database-per-tenant
  • Transactional Outbox
  • PostgreSQL RLS + triggers
  • GIN / trigram search
  • NestJS
  • Zero-downtime SystemD
Project 02 Live · tabilo.live

Tablio

No-code, multi-tenant SaaS platform.

The problem

Small businesses are stuck between chaotic spreadsheets and rigid custom software they can't change.

What I built

A platform where owners build their own system — guided to model their data correctly instead of recreating the spreadsheet mess.

Postgres Row-Level Security for tenant isolation — proven by a cross-tenant test suite running against the live database; two-plane authentication with rotating hashed tokens and reuse detection; atomic signup; ~270 automated tests; trilingual EN / AR-RTL / FR.

  • Postgres RLS
  • Cross-tenant test suite
  • Two-plane auth · token rotation
  • Atomic signup
  • ~270 tests
  • Trilingual
Project 03 Deployed · In active use

Rocket Mart

Multi-vendor q-commerce marketplace & logistics platform.

The problem

Connecting many vendors, payment providers and delivery fleets — without locking the business into any one of them.

What I built

A marketplace and logistics backend that keeps every payment and delivery provider swappable.

A micro-monolith using the Adapter pattern for swappable payment (Paymob) and logistics providers; PostGIS powering sub-100ms "nearest store" lookups; Redis cutting latency 35%; and ACID order processing that holds under high concurrency.

  • Adapter pattern
  • PostGIS · sub-100ms
  • Redis · −35% latency
  • ACID under concurrency
  • Paymob
Project 04 Deployed · In active use

Production LMS

Bilingual (AR / EN) learning platform — IPA Academy.

The problem

An academy needed a bilingual learning platform it could trust in production — and fully own.

What I built

A CMS and e-learning system — quizzes, certificates, attendance — on self-hosted, hardened infrastructure, taken solo from architecture to secured production.

Next.js / NestJS / PostgreSQL / Prisma / Redis / Docker / nginx, with a pre-launch security review, nightly off-site backups, and a full operations runbook — full RTL throughout.

  • Next.js
  • NestJS
  • Prisma
  • Docker · nginx
  • Security review
  • Off-site backups
02 — About

From Mechatronics to systems architecture.

I've spent 5+ years building production enterprise systems end-to-end — from data model to deploy. As Co-Founder & CTO of Origin Logic, I stay hands-on in engineering rather than running things from a distance.

My path runs from Mechatronics into systems architecture, and that's where the instinct comes from: I think about failure modes before features. I'm completing an M.Sc. in Computer Engineering & Systems (Distributed Systems) at Mansoura University — and I teach systems programming.

03 — Capabilities

The stack I build on.

Backend

  • Node.js
  • NestJS
  • TypeScript
  • REST · WebSockets
  • gRPC · GraphQL
  • Event-driven

Data

  • PostgreSQL
  • RLS · triggers · PostGIS
  • Redis
  • Prisma · TypeORM
  • MongoDB

DevOps / Cloud

  • AWS
  • Docker
  • CI/CD
  • Nginx
  • Linux · SystemD

Architecture

  • Multi-tenant SaaS
  • Clean architecture
  • Design patterns
  • Distributed systems