About
Who am I?
I'm Abdel-Rahman Mohamed Saied — Senior Software Engineer & Team Lead specializing in scalable backend systems, real-time data pipelines, and open-source security tooling.
Summary
Professional Overview
Senior Software Engineer and Team Lead with 6+ years of experience architecting production-grade backend systems across seven industries — from social intelligence platforms and hospitality management to AI-driven services and cybersecurity tooling.
My primary stack is Python and Django, used to build systems processing 5M+ data points daily, multi-tenant hotel reservations, geospatial trip management, and talent marketplace platforms. I also engineer in Go, having designed and shipped Fendix — an open-source hybrid DAST + SAST API security scanner that reduced false positives by ~70% through correlated-findings logic and ships as a single signed binary.
As a team lead, I align engineering decisions with business outcomes: improving system performance by 30%, cutting deployment cycles by 40%, and integrating ML models for real-time trend detection and sentiment analysis. I operate across the full spectrum — from API design and async pipelines to cloud infrastructure, security tooling, and mobile backends.
Stack
Tech Stack & Expertise
Journey
Professional Experience
Senior Software Engineer – Team Lead
- Engineered Twiscope — social intelligence platform ingesting 5M+ data points/day across 5 networks using Django, Celery, and Redis
- Architected Sanad AI (FastAPI + OpenAI + Elasticsearch) for real-time insight and anomaly surfacing inside Twiscope
- Built MURI — multi-role transport platform with PostGIS routing, WebSocket live tracking, and role-scoped booking flows
- Reduced system latency by 25% and deployment cycle time by 40% through CI/CD restructuring and async optimization
- Mentored engineers on distributed systems and security-first practices; led weekly architecture reviews
Freelance Software Engineer
- Delivered Hayyak — multi-tenant hotel system with OHIP (Opera PMS) integration, dual payment gateway failover, and Firebase push notifications
- Shipped Maxpeak — Egypt-to-Saudi talent marketplace with a 3-stage AI vetting pipeline and bilingual (AR/EN) UX
- Designed Check-In — Flutter-based mobile attendance system with real-time tracking, deployed at check-in.sa
Senior Software Engineer – Python Developer
- Led Python/Django development across multiple concurrent product streams, owning API design, data modeling, and service boundaries
- Drove technical direction aligned with product roadmaps, translating business requirements into scalable architectural decisions
- Established code review standards and test coverage gates that reduced production incident rate by 30%
- Onboarded junior engineers through structured sessions on Django internals, async task design, and REST best practices
Software Engineer – Backend Developer
- Shipped Gymawy — a gym and fitness platform with membership management, booking flows, and coach scheduling backed by a Django REST API
- Built and maintained REST APIs serving multiple client-facing web and mobile applications using Django and Node.js
- Automated AWS operational workflows, eliminating manual steps from deployment and environment provisioning pipelines
- Implemented monitoring and alerting that reduced mean time to detection (MTTD) for production incidents
- Optimized database queries and caching strategies, cutting p95 API response times measurably
Software Engineer
- Delivered custom backend solutions for clients across retail, logistics, and professional services verticals
- Translated client requirements into RESTful API contracts and technical specifications
- Operated in short agile cycles, consistently meeting milestone commitments across multi-client engagements
Software Engineer – Desktop Developer
- Designed and shipped cross-platform desktop applications in Python, owning full SDLC from requirements through production
- Built internal tooling that automated repetitive business workflows, reducing manual processing time for end users
- Extended and stabilized legacy desktop codebases, improving reliability and shipping new features for enterprise clients
Why Me
Why Work With Me?
Proven ability to lead high-impact projects and deliver results under tight deadlines
Strong balance between deep technical excellence and team mentorship
Deep experience with scalable systems, modern DevOps, and cloud infrastructure
Strategic thinker with a hands-on approach to building meaningful software
Education
Bachelor's Degree in Computer Science
Higher Technological Institute
Graduated with an A+ in final project and overall good grade.
Let's Connect
Open to freelance opportunities, collaborations, or just a good tech conversation.