Backend Team Lead · Cairo, EG

I architect the systems behind scale.

Seven years building the backbone of CRM, call-center and ERP platforms — owning architecture, database design and the reliability that keeps distributed systems honest under load.

View experience ↗ LinkedIn

ab.mghrby@gmail.com in/abd-elrahman-elmaghraby github.com/mghrby

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What I own

Architecture, data & reliability
for systems that can't fall over.

From queue topology to schema design — the unglamorous decisions that decide whether a platform survives its third year.

Service architecture

Designing service boundaries, event flows and APIs that stay legible as teams and traffic grow — not big-bang rewrites, but systems that bend.

LaravelNode.jsDomain design

Data & schema design

PostgreSQL modelling, indexing and migrations for CRM and ERP workloads — query plans that hold up when the row count gets serious.

PostgreSQLIndexingMigrations

Async & messaging

RabbitMQ topologies, retry semantics and back-pressure so call-center spikes degrade gracefully instead of taking the platform down.

RabbitMQQueuesReliability

7+ yrs

Shipping production backends

3 domains

CRM · Call-center · ERP

Lead

Owning backend architecture & team

Cairo

Working with global teams

01 — Experience

Seven years of production backend work.

Each role meant taking ownership of real systems under real load — and leaving them more reliable, faster and better documented than I found them.

2023 — Now

The Address Investments

Backend Lead · In-house Projects

Backend Team Lead2024 — Present

Lead backend engineering for in-house systems spanning CRM, ERP integrations and call-center infrastructure; own architecture, database design and reliability decisions.
Established backup, disaster-recovery and incident-response practices across production systems with bash automation and S3 offsite sync.
Drive code quality through reviews, coding standards and reusable patterns; mentor backend developers and run knowledge-sharing on Laravel and queue-based architectures.
Author technical documentation and roadmaps to standardize onboarding and reduce key-person risk on legacy systems.
Led incident response during a production DDoS attack on the CRM — iptables filtering, PHP-FPM tuning and a migration to Cloudflare — with no extended downtime.

Senior Backend Developer2023 — 2024

Built the Laravel CRM on DigitalOcean/Forge with WhatsApp automation (WAHA): an enterprise webhook system covering 20+ event types, queue-based async processing, idempotency and bulk messaging with configurable human-like delays.
Architected a one-queue-per-campaign call-center system using VICIdial + RabbitMQ (direct-exchange routing, MySQL campaign polling, long-running Node.js workers) to replace polling-based delivery.
Synced users from Odoo ERP into Laravel via a custom Artisan command with structured logging and resilient error handling.
Optimized slow PostgreSQL queries — parallel hash semi-join tuning, row-estimation fixes, work_mem and targeted indexes — and resolved logical replication identity issues.

2021 — 2023

Carefer

Senior PHP Developer · Remote

Refactored APIs across the platform, improving response times and long-term maintainability.
Optimized dashboard performance, significantly reducing load times for critical reports.
Built internal tools for process automation that streamlined team workflows, and authored documentation to standardize development processes across the team.

★ Sprint Golden Hero & Silver Hero awards, 2023

2020 — 2021

Flojics

PHP Developer · Remote

Led development of a PHP platform serving cleaning businesses across Canada — task management, time tracking and payments.
Implemented admin-panel CRUD, Twilio SMS integration and QuickBooks accounting integration.

2019 — 2020

ProCrew

PHP Developer · On-site

Touchexhibition Manager — built the admin panel for a touch-screen kiosk platform (PHP Symfony, jQuery DataTables, AES encryption); used Node.js to sync data between server and kiosks and to monitor device status; integrated the MarineTraffic API via cron for live ship locations.
Theqqa — built a car-services platform (fixing, buying, selling, price estimation) on Laravel with Paytabs payment integration.

02 — Stack

The tools I reach for, by job.

Deep in the PHP/Laravel ecosystem, fluent across data, infrastructure and messaging — chosen for reliability, not novelty.

Languages & Backend

PHPLaravelSymfonyCodeIgniterCakePHPSlimZendNode.jsExpressJavaScriptTypeScriptBash

Databases

PostgreSQLLogical replicationQuery optimizationMySQLMongoDB

Infrastructure & DevOps

DigitalOceanLaravel ForgeAWSLinuxNginxApachePHP-FPMDockerCloudflareiptablesJenkinscPanelHeroku

Messaging & Integrations

RabbitMQVICIdialWAHA (WhatsApp)TwilioStripePaytabsQuickBooksOdoo ERPREST APIsWebhooksCron jobs

Automation & Tooling

n8nGitGitHubBitbucketGitLabClaude Code / MCPOOPAgile

03 — About

Backend team lead who owns reliability.

I'm a backend team lead with 7+ years of engineering experience and hands-on technical leadership. I lead backend development for in-house enterprise systems — CRM, call-center infrastructure and ERP integrations — owning architecture, database design, reliability and team standards. I have a strong track record of taking over legacy codebases, driving remediation and mentoring engineers through code reviews, and I write the technical documentation that lets teams scale. I'm comfortable balancing IC work in PHP / Laravel with leadership across cross-functional projects. If that sounds like your team, let's talk.

Certifications

The Git & GitHub Bootcamp ↗

Udemy · 2023

Getting Started with TypeScript ↗

Udemy · 2017

Fully Charge Your Work & Life ↗

Udemy · 2024

Languages

Arabic

Native

English

Intermediate