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Ahmed
Abdelstar

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Technical Team Lead & Senior .NET Engineer with 10+ years of experience delivering enterprise-scale software in banking, government, and fintech. Capable of owning the full lifecycle — from solution architecture and system design to hands-on engineering and team leadership.

Riyadh, Saudi Arabia Open to opportunities
Working across cultures
🇪🇬 🇸🇦 🇱🇾 🇨🇦 🇺🇸
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About Me

Ahmed Abdelstar

I'm a Technical Team Lead and Senior .NET Engineer with a strong ability to own solution architecture — designing scalable, secure systems from the ground up.

Currently at the Ministry of Municipalities and Housing in Riyadh, contributing to the Balady platform — Saudi Arabia's national e-government portal that digitalises the full lifecycle of municipal services: construction & building licenses, commercial activity permits, signboard approvals, demolition & site permits, occupancy certificates, health & safety inspections, and consultant & contractor registration — serving 2.7M+ citizens across 13 regions. I bridge the gap between business requirements and technical delivery, defining system integration strategies and leading teams to ship high-performance Internet Banking, FinTech, and enterprise applications.

10+ Years Exp.
2.7M+ Citizens Served
50K+ Daily Txns
80% Faster Deploys
🎓 BSc Computer Science — Minya (2015) 📜 ISO 27001 Internal Auditor (2025) 🏦 Internet Banking & FinTech Specialist 🌐 Arabic (Native) · English (Professional)

Skills & Expertise

⚙️

Programming & Frameworks

C#.NET CoreASP.NET ASP.NET MVCEntity Framework Node.jsNestJSExpress.jsAngular
🏗️

Architecture & Design

MicroservicesRESTful APISystem Design Design PatternsOOPEvent-Driven
🗄️

Databases & Search

SQL ServerPostgreSQLElasticsearch RedisQuery Optimization
📨

Messaging & Integration

Apache KafkaCamunda BPMN 8FlexCube Message QueueReal-time Events
🚀

DevOps & Tools

DockerKubernetesCI/CD GitSonarQubeTFS
👥

Leadership & Agile

Team LeadAgile / ScrumCode Review MentoringTechnical Leadership

Work Experience

Lead .NET Engineer — Production Operations & Rapid Business Delivery

Current
Ministry of Municipalities & Housing · Riyadh, KSA
Aug 2023 — Present
  • Directed the Balady platform enabling government e-services for 2.7M+ citizens across 13 regions, automating consultant licensing workflows.
  • Reduced SLA resolution time from 2 days to 8 hours through streamlined production operations and fast-track delivery processes.
  • Enforced clean coding standards with SonarQube & Checkmarks, minimizing technical debt.

Technical Leader

EPL House — Fintech & Banking · 6 October
Feb 2023 — Aug 2023
  • Defined system architecture and technical strategy for the Internet Banking System — designed scalable microservices architecture using .NET Core and SQL Server.
  • Architected Wallet & FinTech Platform with microservices for real-time digital payments and account management.
  • Led team of 6 engineers — 30% reduction in post-release defects; sprint velocity up 25%.
  • Enforced system integration patterns, API architecture standards, and OWASP security practices.

Senior .NET Developer L3

EPL House — Fintech & Banking · 6 October
Apr 2022 — Aug 2023
  • Enabled 100K+ secure transactions daily, reducing processing errors by 30%.
  • Streamlined APIs with batch processing efficiency up by 45% and response times under 500ms.
  • Integrated FlexCube core banking with middleware — 35% faster data sync.

Senior .NET Developer

Dsquares · 6 October
Feb 2020 — Apr 2022
  • Delivered loyalty backend handling 500K+ daily transactions with 99.9% uptime for 1M+ users.
  • Built RESTful APIs with Redis caching achieving 5K+ requests/second.
  • Reduced fraudulent transactions by 40% via anomaly-based detection.

.NET Developer

Key2 Soft · Nasr City
Dec 2017 — Feb 2020
  • Built ERP modules for admissions, finance & inventory, reducing manual effort by 60%.
  • Integrated IoT & biometric attendance systems with 99% accuracy.
  • Improved SQL Server query execution by 40%.

.NET Developer

Rent Centric · Nasr City
Mar 2017 — Dec 2017
  • Engineered backend for vehicle search, booking, and payments using ASP.NET Core & EF Core.
  • Automated the full booking lifecycle, cutting manual operations by ~80%.

Projects & Achievements

🏛️ 2023–Present

Balady — National E-Government Platform

Engineering contributor to بلدي (Balady) — the Saudi Ministry of Municipalities & Housing's flagship digital platform serving 2.7M+ citizens across 13 regions. The platform digitalises the full lifecycle of municipal services, eliminating the need for in-person government visits.

  • 🏗️ Construction & Building Licenses — new builds, modifications, demolitions, and site approvals
  • 🏪 Commercial Activity Permits — shop, restaurant & office licensing, renewals, and updates
  • 🪧 Signboard & Advertising Permits — digital approval for commercial signage
  • 📋 Occupancy & Completion Certificates — proactive digital issuance
  • 🔍 Health & Safety Inspections — online scheduling and compliance tracking
  • 👷 Consultant & Contractor Registration — engineering office onboarding
  • 💳 Fees & Fines Payment — e-payment for all municipal charges
.NET CoreMicroservicesKafkaElasticsearchDockerKubernetesCI/CD
🏦 2022–2023

Internet Banking System

Designed end-to-end architecture for a full-featured internet banking platform — customer accounts, transfers, payments, and secure online transactions. Achieved 99.99% uptime handling 100K+ daily operations.

.NET CoreSQL ServerMicroservicesFlexCube
💳 2022–2023

Wallet & FinTech Platform

Architected a scalable digital wallet and FinTech platform using microservices — supporting real-time payments, account management, and financial data processing at enterprise scale.

Node.jsNestJSExpress.jsPostgreSQLKafkaMicroservices
🔐 2025–2026

UMS — User Management System

Designed and built a centralized Identity & Access Management platform serving multiple EPLHouse applications (BCIS, Wallet, etc.). Implemented multi-app RBAC with RS256 JWT access tokens, rotating HS256 refresh tokens, and Redis-based token revocation. Token introspection endpoint enables secure cross-service authentication without sharing private keys.

NestJSPostgreSQLRedisJWT / RS256RBACMicroservices
🏧 2025–2026

BCIS — Bank Cheque Issuance System

Architected and led development of a full-lifecycle bank cheque management system for EPLHouse. Covers cheque batch creation, multi-type issuance (individual, company, banker, GL), printing/reprinting, inventory tracking, and comprehensive reporting. Migrated from .NET Core v1 to NestJS microservices with structured audit logging, correlation ID tracing, and UMS-based SSO.

NestJSPostgreSQL.NET CoreSQL ServerAudit LogsREST API
📊 2023

Dynamic Survey System

Responsive question hub measuring customer satisfaction, collecting and analyzing thousands of responses monthly to enhance service quality.

ASP.NETAngularSQL Server
🔔 2023

Notification System

Centralized 3rd-party service managing SMS, email, and push notifications across multiple platforms with improved delivery reliability.

.NET CoreKafkaREST API
🎁 2021–2022

Loyalty Programs

Scalable loyalty platforms for Lays KSA, Vodafone & Pepsi — voucher redemption, subscriptions, and multi-channel promotions handling millions of transactions.

.NET CoreRedisPostgreSQL
🏫 2020

Key2 School ERP

Comprehensive ERP for schools integrating admissions, finance, inventory, and fees management, reducing manual workload by ~50%.

ASP.NET CoreEF CoreSQL Server
🏭 2019

Factory ERP System

Full ERP for factories covering HR, production planning, accounting, and asset management, streamlining operations and reporting.

ASP.NETMVCSQL Server
🚗 2017

Car Rental ERP

On-demand car rental system automating booking, extensions, customer management, and returns — cutting manual operations by ~80%.

ASP.NET CoreEF CoreSQL Server

Get In Touch

I'm open to new opportunities, collaborations, or just a chat about tech.

Email ahmed.abdelstar.1993@gmail.com
LinkedIn linkedin.com/in/ahmedabdelstar
Phone +966 598 278 781
Location Riyadh, Saudi Arabia
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