Senior Software Engineer · 10+ years · Cairo / GCC
STATUSOpen to opportunities
FOCUSSenior IC · Software Team Lead
GEOGRAPHYGCC (Bahrain residency) · Remote · Open to relocation
STACKTypeScript · Node.js · AWS · PHP/Laravel
LANGSArabic (native) · English (advanced)

I ship cloud-native
systems.
end-to-end.

Senior software engineer with 10+ years across consumer, enterprise, health-tech, and government-scale systems. Most recently owned a multi-market platform at Calo serving customers across the GCC and the UK. I take problems end-to-end — from architecture, through code, deployment, on-call, and the small fixes that make a system reliable.

GET IN TOUCH → SEE WORK ↓
CAIRO · 30.04N REC · v1.0
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01 / ABOUT

The short version.

I'm a senior software engineer focused on building scalable, cloud-native systems that ship and stay shipped. My career has spanned consumer delivery platforms, enterprise ERP, government-scale labor systems, and health-tech — environments where the requirements were ambiguous and the stakes were real.

I most recently spent four years at Calo, owning the engineering side of a delivery platform that served customers across the GCC and the UK. I led the architectural migration off costly third-party dependencies, designed event-driven services on AWS, led the engineering work for the UK market launch, and mentored engineers across cross-functional teams.

Earlier in my career I shipped Laravel and PHP across health-tech platforms (MannaiTech) and contributed to national-scale enterprise systems including the Saudi Ministry of Labor's Ajeer platform and STC IGATE ERP — both audit-driven environments at strict compliance posture.

I'm a native Arabic speaker, and I've been comfortable across four different stacks over my career — so picking up the next one is part of the job.

Years shipping
10+ years
Across senior IC and tech-lead level work.
Markets served
GCC + UK
Multi-market platform at Calo: GCC and the UK.
Production stacks
4
PHP/Laravel, Node.js/TypeScript, React/React Native, AWS Serverless.
Products shipped
6+ end-to-end
Consumer, enterprise, health-tech, government, accessibility.
02 / TIMELINE

Where I've worked.

MAR 2022 → APR 2026 4 years · Senior IC

Senior Software Engineer — at Calo Inc.

D2C healthy food delivery platform · Scale-up · GCC + UK

Owned the engineering side of a multi-market platform — backend microservices on AWS Serverless, customer-facing app, and the operational tooling beneath it. Led the in-house migration off costly third-party dependencies, drove the engineering work for the UK launch, designed internal platforms (ticketing, complaints, specialist tools) that cut issue resolution time ~30%.

Mentored engineers, ran code reviews, contributed to hiring. Worked daily with product, ops, and leadership to translate ambiguous business problems into measurable engineering outcomes.

TypeScript Node.js AWS Serverless DynamoDB React Native GraphQL Microservices UK launch
JAN 2019 → MAR 2022 3 years · Senior IC

Senior Software Engineer — at MannaiTech

Tech subsidiary of Mannai Corp · Enterprise software · Bahrain

Acted as technical lead across multiple concurrent projects — full-lifecycle delivery from architecture through production for products spanning health-tech, education, and communications. Shipped Natural Kitchen (nutrition platform), Evergo (video conferencing & scheduling), and Five&Co (student goal tracking).

PHP / Laravel Livewire MySQL Tech lead Multi-product
JUN 2016 → AUG 2018 2 years · Mid IC

Software Engineer — at ITS

Regional enterprise software firm · Government & telecom · Cairo

Contributed to Saudi Ajeer (Saudi Ministry of Labor) — a national-scale labor management platform — and STC IGATE ERP, one of the largest enterprise ERP deployments in the GCC. Operated in audit-driven environments with strict SLAs and high-stakes data integrity.

Government-scale Telecom ERP Compliance PHP Java
FEB 2014 → FEB 2016 2 years · IC

Software Engineer — at xWare

Egyptian software studio · Inclusive design · Cairo

Designed and built xGame — an accessibility-first gaming platform for visually impaired users. An early Arabic-region project focused on audio-driven design and inclusive UX. Still one of the projects I'm most proud of.

Accessibility Audio-first PHP
"I take problems end-to-end — from understanding the actual business need, through architecture and trade-offs, all the way to deployments, on-call, and the small fixes that make a system feel reliable."
— ON HOW I WORK
03 / SELECTED WORK

Things I've built.

Calo Multi-Market Platform
CALO INC. · 2022 → 2026 · END-TO-END OWNERSHIP
Cloud-native delivery platform serving customers across the GCC and the UK. Owned platform architecture, the customer app, and the backend microservices powering both. Designed event-driven flows on AWS (Lambda, Step Functions, SQS, EventBridge, DynamoDB), led the in-house migration off costly third-party dependencies, and led the engineering work for the UK market launch.
TypeScriptNode.jsAWS LambdaDynamoDBEventBridgeStep FunctionsReact NativeGraphQL
▸ ~20% routing accuracy gain · ~15% delivery time reduction · ~30% issue resolution time cut · ~10% CSAT lift
Saudi Ajeer
MINISTRY OF LABOR · NATIONAL SCALE
Contributed to a national labor-management platform serving millions of residents and employers across Saudi Arabia. Audit-driven environment with strict data integrity and SLA requirements.
PHPJavaMySQLCompliance
▸ Millions of users · Government-grade data integrity
STC IGATE ERP
SAUDI TELECOM · ENTERPRISE
One of the largest enterprise ERP deployments in the GCC. Supporting national-scale telecom operations with stringent reliability, security, and audit-trail requirements.
Enterprise ERPPHPSLA-bound
▸ National telecom scale · Strict audit posture
Natural Kitchen
MANNAITECH · HEALTH-TECH
End-to-end nutrition platform for clinics and end-users. Complex Eloquent models, queue-driven meal-plan generation, admin tooling for nutritionists, and a customer-facing experience.
LaravelMySQLQueuesHealth-tech
▸ Automated meal planning at clinic scale
xGame
XWARE · INCLUSIVE DESIGN
Accessibility-first gaming platform for visually impaired users. An early Arabic-region project focused on audio-driven game design and inclusive UX — still one of the projects I'm most proud of.
PHPAudio-firstAccessibilityArabic-region
▸ Pioneering Arabic-region inclusive gaming
04 / STACK

What I work with.

Languages
TypeScript5y Node.js5y JavaScript10y PHP / Laravel7y
Cloud / Infra
AWS Lambda Step Functions EventBridge / SQS Serverless Framework CI/CD · GitHub Actions Docker
Data
DynamoDB modeling Single-table design RDS / MySQL OpenSearch
Frontend
React React Native GraphQL Livewire
Architecture
Event-driven systems Microservices Distributed systems Multi-tenant platforms System design
Practice
End-to-end ownership Code review Mentoring · hiring Cross-functional
AI tooling
Claude · Anthropic API Cursor OpenRouter LLM API integration
Domains
Consumer · D2C Enterprise ERP Health-tech Government-scale Accessibility
05 / CONTACT

Let's talk.

Currently open to senior or team-lead roles.

I'm based in Cairo, hold an active Bahraini residency, and I'm open to GCC-based roles, fully remote, or relocation. If you're hiring or know a team that is, I'd love to hear from you.

The fastest way to reach me is email or LinkedIn — I respond within a day.

EMAIL hzm4444@gmail.com
LINKEDIN linkedin.com/in/hazem-taha
PHONE +20 109 170 3638
LOCATION Cairo, Egypt · Bahrain residency · Open to relocation
~/hazem — bash
$ whoami hazem-taha · senior software engineer $ cat status.txt ● Open to senior or team-lead roles GCC-based · remote · open to relocation $ curl -s availability.json | jq { "available_from": "immediately", "response_time": "< 24h", "preferred_contact": "email · linkedin" } $ help Available commands: about · short bio stack · technical capabilities work · selected projects contact · how to reach me resume · open the latest CV clear · clear this terminal
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