tenure
3+
Years shipping production .NET backends.
System Online
Building Resilient
.NET Architectures
I'm Abdelrahman Anwar, a backend engineer specializing in robust, scalable systems using C# and .NET. I design clean APIs, optimize database performance, and build infrastructure that handles complexity with precision. Let's engineer something robust.
CORE STACK
C#
.NET Core
SQL Server
Docker
v.2.0.27
domains
Multi
ERP, e-commerce, e-learning, CRM, marketplace & driver hailing.
ownership
E2E
Greenfield backends owned from design to deploy.
Professional Experience
[sys.log] Tracking career progression and architectural contributions across various engineering environments.
-
Sep 2025 – Present
Backend Developer (.NET)
- Designed and implemented a Hiring service within an ERP microservices ecosystem, including a dynamic approval workflow integrated with an external HR service to support configurable, organization-based approval chains.
- Stabilized critical production government systems (CAC, APA, SLA) by resolving high-priority bugs and improving reliability under live conditions.
C# ASP.NET Core Microservices ERP -
Jan 2024 – Sep 2025
Backend Developer (.NET)
- Took full ownership of multiple backend modules within Talgaha, a large-scale legacy platform covering POS, e-commerce, delivery tracking, and operations.
- Built a Delivery service from scratch with real-time driver tracking via SignalR and full mobile app integration.
- Designed and implemented a mini ERP module covering chart of accounts, journal entries, and financial reporting, integrated with clients, suppliers, inventory, and payroll.
- Led backend development for an e-learning platform, including RBAC, content and exam management, OTP-based enrollment, and online payment integration (Clickpay.sa).
- Designed scalable SQL Server schema and delivered RESTful APIs with real-time communication via ASP.NET Core.
- Contributed to requirements analysis, solution design, and sprint planning alongside product and frontend teams.
- Deployed and maintained multiple production systems using Plesk.
ASP.NET Core SQL Server SignalR Plesk -
Mar 2024 – Nov 2024
Backend Developer (.NET)
- Integrated a secure payment gateway (Sadad) into a construction equipment rental platform.
- Refactored a critical report generation pipeline, cutting execution time from several seconds (with intermittent timeouts) down to milliseconds.
- Resolved production bugs under live conditions, improving system reliability for end users.
ASP.NET Core Payments Sadad SQL Server
Engineering Projects
A selection of robust backend systems and architectural solutions built with .NET and modern infrastructure.
2025 - Present
Ehjz
Rental & Reservations Marketplace (Backend)
- Architected a full generic rental and reservations marketplace backend end-to-end, supporting both vendor and customer workflows.
- Implemented a quote-based negotiation flow with versioned history alongside an instant booking mode with conflict detection (availability rules, exceptions, buffer-time overlaps) backed by a filtered PostgreSQL index.
- Integrated Meilisearch for full-text vendor search with Arabic and English support, using a denormalized document model synced via CQRS command handlers.
- Built an automated notification system with per-action user preferences, a dispatcher/strategy pattern, and a split between an inbox table and a delivery log for tracking.
- Implemented admin analytics including KPI cards, chart endpoints, date filtering, period-over-period comparison, and CSV/PDF export.
ASP.NET Core 10PostgreSQLEF Core
MediatRCQRSHangfireMeilisearchDocker
2025 - Present
QDriven
Driver Hailing App (Qatar)
- Built the entire backend solo: auth, booking flow, driver-rider matching, real-time tracking, pricing, and admin tooling; later integrated with a mobile app and dashboard built by a second developer.
- Designed an expanding-radius matching algorithm — the search circle widens over time if no driver accepts, improving match rate without unnecessary noise.
- Implemented traffic-aware dynamic pricing with a peak-hours multiplier.
- Migrated from SQL Server to PostgreSQL with PostGIS for geospatial queries (proximity search, route calculation), also simplifying deployment.
ASP.NET CorePostgreSQLPostGIS
EF CoreSignalRJWT AuthDocker
2024 - Present
CRM System
Meta & TikTok Integration
- Designed and built a full-scale CRM with automated lead capture from Meta and TikTok via webhooks, and dynamic distribution logic across sales teams.
- Enforced role-based lead limits with override options and auto-detachment of inactive leads after 24 hours.
- Automated Meta/TikTok asset fetching (Pages, Ad Accounts, Subscriptions) and built an order dispatch system routing shipments to J&T or PDC based on area-specific pre-assignments.
- Implemented dynamic pricing and discount rules integrated with the full order-to-shipment workflow.
ASP.NET Core 8SQL ServerCQRS
EF CoreHangfireWebhooks
Skills
A comprehensive overview of the technologies, architectures, and tools utilized across various backend and integration projects.
Programming Languages
C#CC++JavaScript
Databases
SQL ServerPostgreSQLPostGISMongoDB
Architecture & Patterns
REST APIsCQRSRepository PatternClean ArchitectureJWT AuthRBAC
Backend
ASP.NET CoreEntity Framework CoreIdentity FrameworkLINQHangfireSignalRMediatRXUnit
Integrations
KafkaRabbitMQWebhooksElastic SearchMeilisearchMeta / TikTokPayment Gateways
Cloud & DevOps
DockerGit / GitHubPleskFirebaseAWS (Familiar)Azure (Familiar)
Frontend (Basics)
HTMLCSSJavaScriptBootstrapAngular
Education & Certifications
Academic foundation and cloud credentials that support backend engineering work.
BSc in Computer Science & Physics
GPA: 3.75
AWS Certified Cloud Practitioner
CONTACT
Let's build something robust.
Available for backend engineering opportunities, interesting systems work, and technical collaborations.