Backend & Microservices
Scalable, well-tested services and APIs in PHP (Laravel, Yii2), Node.js, and NestJS — built on clean microservice architecture, SOLID, and design patterns.
Open to new opportunities
Hi,I’mMario
SeniorSoftwareEngineer
I design and ship scalable, production-grade software ecosystems end-to-end — from intuitive interfaces to resilient backends, data layers, and cloud infrastructure.
Cairo, Egypt
Available for senior & freelance roles
Full-Stack EngineeringScalable ArchitectureCloud & DevOpsSystem Design
0
Years Experience
0+
Projects Delivered
0+
Payment Gateways Integrated
Get to know me
About Me
I'm a Senior Software Engineer with 5 years of experience designing, building, and scaling production-grade software ecosystems end-to-end — from intuitive front-ends to resilient backends, data layers, and cloud infrastructure. I turn complex requirements into reliable systems that ship and scale.
I work across the full stack and own architecture at the systems level: microservices, APIs, databases, and cloud-native delivery on GCP and AWS with Docker, Kubernetes, and CI/CD. My track record includes high-stakes integrations — payments, banking, and accounting APIs — and secure, multi-tenant, bilingual (Arabic/English) products.
Beyond the code, I own delivery end-to-end: mentoring engineers, driving documentation and engineering standards, and translating business goals into maintainable solutions that last.
Clean codePerformance-firstAccessible by defaultPragmatic
Quick facts
- Focus
- Scalable Full-Stack Systems
- Experience
- 5 Years
- Location
- Cairo, Egypt
- Languages
- Arabic, English
What I do
Services & Expertise
End-to-end engineering — I design, build, and ship complete products, or plug into your team wherever you need depth.
Payments & Banking Integrations
Payment microservices integrating MyFatoorah, Tabby BNPL, PayPal, and enterprise banking APIs (OAuth2, mTLS) with secure webhooks and automated reconciliation.
Full-Stack Web Platforms
End-to-end products with Laravel + Next.js/React, multi-tenant and RTL-first bilingual interfaces, subscriptions, billing, and admin panels.
Databases & Data
Schema design, query and caching optimization, and reliable data modeling across MySQL, PostgreSQL, Redis, and MongoDB.
Cloud & DevOps
Containerized deployments with Docker/Docker Swarm and Kubernetes on GCP and AWS, automated through Bitbucket CI/CD pipelines and proactive error monitoring.
System Design & Ownership
Architecting reliable systems end-to-end — mentoring engineers, driving documentation and engineering standards, and turning business goals into maintainable solutions.
My toolkit
Skills & Technologies
The languages, frameworks, and platforms I reach for to design, build, and ship reliable software at scale.
Stack
One stack, end‑to‑end.
From database schema to production deploy, I own the full lifecycle. My core is robust backend engineering — but I move comfortably across the frontend, mobile, and infrastructure to ship complete products.
- Backend-heavy full-stack — expert in PHP (Laravel, Yii2) & Node.js
- Payments, banking & accounting API integrations
- Cloud-native delivery on GCP/AWS with Docker & CI/CD
01
Languages
- PHP
- JavaScript
- TypeScript
- SQL
- Dart
- Java
- C#
02
Backend
- Laravel
- Yii2
- Node.js
- NestJS
03
Frontend & Mobile
- Next.js
- React
- Angular
- Vue.js
- Flutter
04
Databases
- MySQL
- PostgreSQL
- Redis
- MongoDB
- SQL Server
05
Cloud & DevOps
- Google Cloud
- AWS
- DigitalOcean
- Docker
- Kubernetes
- Nginx
- Bitbucket CI/CD
06
APIs, Integrations & Tools
- REST APIs
- GraphQL
- PayPal
- OAuth2 / mTLS
- Filament
- Git
- Jira
- Postman
Career path
Work Experience
A timeline of the roles where I’ve grown, shipped, and made an impact.
Senior Software Engineer
Evolvice GmbH
Jun 2025 — Present Cairo, Egypt (Remote) · Full-time
Architect and deliver payment and platform services across the Ynmo product suite — from a Laravel-based payment microservice to enterprise banking integrations and a bilingual admin platform.
- Built Ynmo Pay, a Laravel payment microservice integrating MyFatoorah and Tabby BNPL with secure webhooks and end-to-end reconciliation
- Engineered a two-way Qoyod accounting sync with customer deduplication and race-condition-safe upserts via unique locks and recovery jobs
- Deployed and scaled services with Docker Swarm on GCP through Bitbucket CI/CD, with Slack/email error alerting
- Integrated STC Bank B2B payroll (OAuth2, Qitaf mTLS) and JeelPay, and shipped iSpeaker Live (Laravel + Next.js + Flutter)
LaravelYii2Next.jsDocker SwarmGCPFilament
Software Engineer
REFILEX
Dec 2023 — Jun 2025 Cairo, Egypt · Full-time
Owned features across the full application lifecycle — architecture, development, code review, and debugging — delivering clean, efficient, well-tested code.
- Designed and maintained scalable RESTful APIs and optimized schemas, queries, and caching for performance and reliability
- Automated recurring tasks and deployment workflows through custom tooling and scripting
- Collaborated in Agile teams to prioritize and execute features across the SDLC
PHPLaravelMySQLREST APIs
Software Engineer (Contract)
Kick Start Interactive
Aug 2022 — Dec 2023 Remote · Contract
Ensured seamless integration between backend services and frontend/mobile interfaces across web and mobile platforms.
- Maintained consistency and synchronization between platforms
- Collaborated with cross-functional frontend, backend, and mobile teams in an Agile environment
PHPLaravelREST APIs
Software Engineer
Tod-z
Nov 2022 — Jun 2023 Cairo, Egypt · Full-time
Designed scalable, maintainable full-stack solutions with tight integration between frontend and backend systems.
- Deployed and managed applications on AWS cloud infrastructure
PHPMySQLAWS
Backend Developer
OTG
Dec 2021 — Aug 2022 Cairo, Egypt · Full-time
Designed, developed, and maintained robust, secure, and scalable APIs following industry best practices.
- Optimized database schemas and managed replication, backups, and recovery
- Wrote unit, integration, and end-to-end tests and tuned code and queries for performance
PHPMySQLREST APIs
Education
Bachelor of Science in Computer Science
Modern Academy for Computer Science
Maadi, EgyptSelected work
Projects That Ship at Scale
Real products I've engineered — from VC-backed SaaS and payment microservices to marketplaces serving millions. Every one is live in production.
SaaS · EdTech · HealthTech FeaturedEnterprise SaaS Ecosystem
Ynmo
A VC-backed SaaS suite digitizing early-childhood development, special education, and therapy across the Gulf. I built backend and full-stack features across the product family — Ynmo Plan (individualized rehabilitation programs), Ynmo Daycare, Ynmo Tifli, and Ynmo Assessments — spanning subscriptions, billing, and integrated payments in a multilingual, RTL-first platform.
- $5.5M funded
- iOS + Android apps
- Serving Gulf institutions
LaravelYii2MySQLGCPDocker SwarmFilament
PropTech · Consumer Trust · Data FeaturedCompound Rating & Complaint Reports — Egypt
Aqarmap Compounds Ratings
A transparency product inside Aqarmap Egypt — one of the country’s leading real-estate marketplaces — that rates residential compounds before a buyer commits. Each report pairs an expert panel’s assessment with logged buyer complaints against the developer, filterable by location, budget, and property type. I contributed backend features and APIs behind the report pipeline and the filtered, paginated listing that serves it at national scale.
- 1,900+ rating reports
- Expert panel + complaint tracking
- 2M+ monthly visitors
PHPREST APIsMySQLRedis
FinTech · Payments · Microservices FeaturedPayment Microservice
Ynmo Pay
A Laravel payment microservice I architected end-to-end — integrating MyFatoorah, Tabby BNPL, and enterprise banking APIs (STC Bank B2B payroll with OAuth2/Qitaf mTLS, JeelPay). It features secure webhook handling, a two-way Qoyod accounting sync with race-condition-safe reconciliation, a Filament admin panel, and CI/CD deployment on Google Cloud via Docker Swarm.
- 5+ gateways integrated
- OAuth2 + mTLS banking
- Automated reconciliation
LaravelMyFatoorahTabbyQoyodDocker SwarmGCP
PropTech · Marketplace · KSAPropTech Ecosystem — Saudi Arabia
Aqarmap Saudi
Aqarmap’s Saudi arm — a separate market and product line, headquartered in Riyadh, connecting buyers, investors, developers, brokers, landlords, and funds around new real-estate projects. It layers AI-assisted pricing and a vetted consultant and broker-training network on top of the marketplace. I worked on backend features and API development for the Saudi platform.
- Riyadh HQ · FAL licensed
- AI-assisted project pricing
- Developer + broker network
PHPREST APIsMySQLRedis
EdTech · Social · PaymentsSocial E-Learning & Creator Platform
iSpeaker Live
An Arabic-first social e-learning and creator-economy platform where experts host live rooms, sell courses and consultations, and monetize through a built-in wallet. I delivered it end-to-end (Laravel + Next.js) with Sanctum auth, feeds and reactions, self-hosted Jitsi live rooms, a PayPal-backed wallet, RTL PDF invoicing, and a Flutter mobile app shipped to TestFlight.
- Live video rooms
- Wallet + payments
- Flutter mobile app
LaravelNext.jsFlutterJitsiPayPalSanctum
PropTech · InvestmentInternational Real-Estate Investment Portal
Property Turkey
A 20-year-old international real-estate investment portal guiding overseas buyers through acquisition, legal support, citizenship-by-investment, and property management across Istanbul and the Turkish coast. I developed and maintained features for the portal serving a global investor base.
- 20+ years operating
- ~10,000 clients served
- 4.7★ on Trustpilot
PHPLaravelMySQL
HealthTech · On-DemandOn-Demand Home Healthcare
Otlob Tabib
An on-demand home-healthcare platform delivering 24/7 doctor, nursing, and physiotherapy home visits across Egypt via web and mobile apps. I developed backend services powering bookings, scheduling, and the multi-specialty request flow behind its iOS and Android apps.
- 24/7 on-demand
- iOS + Android apps
- Multi-specialty visits
LaravelREST APIsMySQL
GovTech · Marketplace · Vision 2030Government-Services Marketplace
Mueaqib
A Saudi two-sided marketplace connecting citizens with licensed offices to complete government and administrative transactions — users post a request, verified offices compete with offers. A mobile-first product (User + Provider apps) explicitly aligned with Saudi Vision 2030’s public-service modernization goals.
- Dual-app marketplace
- iOS + Android
- Aligned with Vision 2030
LaravelREST APIsMySQL
Property Discovery & Reservation
PropTech · BookingProperty Discovery & Reservation
Book Makan
A real-estate booking platform where users browse available properties and reserve them directly. I built the property discovery and reservation functionality — listing, availability, and the booking flow behind it.
- Property discovery
- Direct reservation flow
- Availability handling
LaravelMySQLREST APIs
E-Commerce · RetailRefurbished-Electronics E-Commerce
Kroobia
A bilingual Egyptian e-commerce platform for renewed and refurbished electronics — laptops, consoles, and audio — backed by a professional inspection guarantee and 14-day returns. I built catalog, category, and checkout features for the storefront.
- Nationwide Egypt shipping
- Bilingual (AR/EN)
- Full checkout flow
LaravelMySQL
On-Demand · Marketplace · MobileMulti-Vertical Delivery Super-App — Egypt
Quick
A bilingual Egyptian delivery super-app I built end-to-end — backend, mobile apps, and marketing site. One cart spans five verticals (grocery, pharmacy, real estate, services, and pet supplies) across multiple vendors, backed by a seven-state live order tracker, prescription upload for pharmacy orders, cash and card payment, push notifications for customers, shops, and drivers, and separate ratings for shop, driver, and order.
- 5 verticals, one cart
- Customer · shop · driver roles
- Bilingual AR/EN + live tracking
LaravelREST APIsMySQLPush notifications
Marketplace · Freelance · Remote WorkFreelance Marketplace — EU Registered
tod-Z
A two-sided freelance marketplace matching project owners with vetted remote talent across web development, UI/UX and graphic design, content writing, translation, data entry, and virtual assistance. I built it full-stack in Laravel — separate onboarding tracks for project owners (corporate, private entity, individual) and freelancers, LinkedIn and Facebook social sign-up, a talent assessment and filtering pipeline, secured payments, and the project management flow that runs a hire to completion.
- Two-sided marketplace
- Secured payment flow
- Registered in Estonia (EU)
LaravelMySQLAWSOAuth social login
HealthTech · Catalog · CorporateMedical-Device Distributor Platform
Biotechnology Egypt
The web platform for a Cairo medical-device distributor operating since 2007, representing international brands across cardiology (ECG, Holter, stress-test systems), pulmonology (spirometry, PFT, CPET), neurophysiology (EEG, TMS, nerve monitoring), and physiotherapy (laser, ultrasound, electrotherapy, shockwave). I built it end-to-end in Laravel — a nested multi-category product catalog with per-product detail pages, service pages, and a “Get a Quote” lead flow feeding the sales team.
- 4 clinical equipment categories
- Distributor since 2007
- Quote-request lead flow
LaravelPHP 8MySQL
HealthTech · Catalog · CorporateMedical Equipment Catalog & Distribution
Nilemed Egypt
The web platform for a specialised medical-equipment distributor in Egypt, representing international manufacturers across urology, gastroenterology, pelvic floor and incontinence treatment, gynaecology, and critical care. I built it end-to-end in Laravel — a clinical-category product catalog with per-product detail pages, a directory of the principals they represent, and a “Request a quote” lead flow, positioned around the after-sale story: local installation, training, service, and continuity of consumable supply.
- 6 clinical areas
- 9 international principals
- Quote-request lead flow
LaravelPHP 8MySQL
Let’s connect
Get in touch
Have a project in mind, a role to fill, or just want to say hi? My inbox is always open.
Let’s build something great.
Available for senior & freelance roles. I usually respond within a day.