Email: ashsada1973@gmail.com | Mobile: +962-79-031-8184 | Amman, Jordan GitHub | Codeberg | Stack Overflow
Full Stack & Systems Engineer with 12+ years of experience across web, desktop, and cross-platform mobile development. Comfortable owning the full stack from low-level systems work in Zig to production ASP.NET Core services and modern JavaScript front-ends (React, Solid, Blazor). Ships across Windows and Linux with strong database design (SQL Server, PostgreSQL) and CI/CD automation.
- Architected a multi-tenant ERP (72K SKUs) with ML-driven forecasting, cutting PO cycle time by 80%.
- Led a 4-dev team building a supply chain ERP replacing legacy VB6, cutting time-to-market from 3 days to 24 hours.
- Designed a HA medical scheduling platform in Zig with PostgreSQL replication and HAProxy load balancing.
- Languages: C#, Zig, JavaScript, Python, Bash, PowerShell
- Back-end / APIs: ASP.NET Core, ASP.NET WebForms, REST, CQRS, DDD
- Front-end: React, Next.js, Solid, Blazor, Vanilla JS, CSS, Tailwind CSS
- Mobile / Cross-Platform: .NET MAUI, Xamarin, Flutter
- Systems / OS: Windows, Linux, Docker, systemd, HAProxy, FFI, Concurrency, Byte Management (memory hierarchy)
- Networking: HTTP/HTTPS, WebSockets, TCP/UDP sockets, IP/Subnets, VPCs, network architecture
- Databases: T-SQL (SQL Server), PostgreSQL, SQLite
- DevOps / Automation: GitHub Actions, Forgejo Actions, Azure DevOps, Docker, Nginx, YAML
- Testing: xUnit, Playwright, pytest
Aug 2024 - Present | Amman, Jordan
Parcel Delivery System (PDS) | C#, ASP.NET Core, Blazor, .NET MAUI
- Designed and delivered a full-stack parcel delivery platform replacing manual Excel-based operations: ASP.NET Core Web API back-end, Blazor web front-end, and .NET MAUI mobile app for field agents (shipment tracking, routing, client management).
- Serves 1,500+ clients, consolidating dispatch, tracking, and billing into a single system.
- Deployment: self-hosted on Linux, Nginx reverse proxy, CI/CD via GitHub Actions.
ERP System | C#, ASP.NET Core, Blazor, ML.NET
- Architected a multi-tenant ERP system (72K SKUs) using Domain-Driven Design, Clean Architecture, and CQRS with a Blazor front-end.
- Implemented ML.NET sales forecasting (linear regression) that automatically updates target purchase quantities based on price changes and demand trends, driving automated purchase-order generation.
- Reduced PO and forecasting cycle time by 80%, improving purchase quantity accuracy and costing precision.
- Deployment: Azure cloud SaaS, CI/CD via GitHub Actions.
Jan 2022 - Jul 2024 | Mafateeh Group IT and Media Solutions, Amman, Jordan
Company Website Migration | PHP to ASP.NET Core, Blazor WASM
- Migrated company website (Home, About, Services, Contact) from PHP to ASP.NET Core with Blazor WASM front-end.
- Improved page load performance, modernized UI/UX, and added client-side validation with anti-probing protections.
- Deployment: self-hosted on Windows Server, CI/CD via GitHub Actions (YAML pipelines).
Digital Marketing CMS | ASP.NET Core, Blazor
- Built a maintenance management system for Digital Out-of-Home (DOOH) advertising: monitors street digital billboards by reading error sensors, tracks and dispatches maintenance jobs.
Computerized Maintenance Management System (CMMS) | ASP.NET Core, Blazor
- Designed a custom CMMS for a leading offline marketing company in Jordan: links each equipment model to its schematic diagram, reads fault codes, and suggests most probable cause with recommended actions.
- Manages spare parts inventory directly tied to equipment models, reducing downtime by eliminating manual lookup.
- Built a fully responsive technician portal (PWA) used by ~20 field technicians, available 24/7.
Technical Support Management System (TSMS) | React, Next.js, ASP.NET Core
- Proposed and built an internal ticketing system for managing client technical support: ticket tracking, priority-based categorization, and resolution workflow.
- Handles 30+ client accounts.
Apr 2020 - Dec 2021 | Remote
- Taught university students online: Java, C#, web layout, CSS, and full-stack fundamentals.
- One student (top 10 graduate, Software Engineering) was trained on practical web development and secured a job post-pandemic.
Nov 2018 - Mar 2020 | TATWIR Foods, Amman, Jordan
Supply Chain & Sales Distribution ERP | C#, ASP.NET Core MVC, SQL Server
- Led a team of 4 junior/mid-level developers to design and build a full ERP system replacing a legacy VB6 application: automated supply chain operations and sales distribution across 3 warehouses and 20 distribution points (40+ SKUs).
- Delivered semi-automated order-to-delivery workflow, deep insight reporting and analysis, tax-compliant invoicing, and accurate cash management.
- Replaced manual data entry with hand-held device order capture and on-site sales invoice printing; sales data syncs directly to the system, significantly reducing input errors.
- Eliminated DB corruption and data leakage by enforcing null constraints and replacing the legacy single-machine architecture with a fully web-based system accessible from hand-helds and by managers remotely.
- Set up CI/CD pipeline (Azure DevOps + Docker), cutting time-to-market from 3 days to 24 hours.
- Coordinated system requirements between operations stakeholders and the dev team; ran 2-week Scrum sprints.
- Mentored junior developers on front-end and back-end development practices.
Oct 2016 - Nov 2018 | ProActive Business Solutions, Abu Dhabi, UAE
Zakat Fund UAE (Government Contract) | C#, ASP.NET, Xamarin
- Participated in a 7-developer team delivering the web application and Xamarin mobile app under a 12-month government contract; built various sections in compatibility with the work-flow engine (developed by a 3rd-party sub-contractor).
ERP Feature Development | C#, ASP.NET Core
- Developed new features for ProActive's ERP platform used by multiple private-sector clients across UAE, especially construction companies; leveraged prior accounting background to translate domain-specific requirements into technical solutions.
- Independently designed and developed a real estate management system targeting the UAE market.
- Added multi-dimensional analysis to the financial reporting module.
- Designed and developed a Letters of Credit (LC) management module.
- Designed a Fixed Assets management module with improved depreciation tracking.
Product Management
- Acted as product manager: met with stakeholders and end users, translated business requirements into technical specs for the dev team lead and operations manager.
Sep 2014 - Oct 2016 | Yamar Business Solutions Development, Amman, Jordan
Car Dealership Estimation Tool | C#, WinForms
- Designed and built a desktop app for a car dealership that scrapes live market prices in Jordan and calculates optimal buying prices using a proprietary formula weighted against vehicle specs and options; also handles used-car and trade-in valuation.
Ministry of Labor Website (Government) | C#, ASP.NET WebForms
- Worked on a team of 3 to extend the existing Ministry of Labor web application with new features, working within the established codebase.
Xevora - Medical Appointments App | Zig, PostgreSQL, SolidJS, Flutter (In Progress)
- Real-time medical scheduling platform for clinics and patients: appointment management, push notifications, and routing control.
- Zig REST API back-end with connection pooling; PostgreSQL primary + 2 read replicas via repmgr; HAProxy load balancer; SolidJS web client, Flutter mobile app.
- Architecture: HAProxy reverse proxy, cache layer, and automated backup store.
- Pioneers Academy | Certificate in Software & Web Developer (Pearson Foundation certified) | Aug - Sep 2014
- Applied Science University | B.A. In Accounting | Jul 1998
- Arabic (native)
- English (fluent)
- Spanish
- Turkish