Alongside my open-source products and reference architectures, explore the mission-critical enterprise systems I architected and delivered across banking, government, energy (SCADA), and manufacturing over my 25+ year career.
A Visual Studio Code extension to manage NuGet packages inside the editor. Highlights vulnerable/outdated packages, inspects dependency chains ('Why is this here?'), and applies safe bulk updates with Central Package Management (CPM) support.
A self-hosted, multi-user subscription and personal finance tracking platform with zero freemium paywalls. Features real-time multi-currency exchange rates, Bring-Your-Own-Key (BYOK) AI cost-saving recommendations, and automated SMTP renewal alerts.
A high-performance, zero-allocation .NET A/B testing library engineered for microservice architectures. Features a Fluent Builder API, deterministic MurmurHash3 traffic bucketing, distributed Redis state, and Fail-Open resilience.
A distributed background ingestion engine that consumes raw, unstructured customer emails via Redis Streams and orchestrates Microsoft Semantic Kernel & Google Gemini AI to classify, prioritize, and transform them into structured JSON tickets.
An enterprise-grade authentication and authorization reference architecture built on ASP.NET Core (.NET 8). Implements PBKDF2 password hashing, strict Refresh Token Rotation, IP-based Rate Limiting, Clean Architecture, and full unit/integration test coverage.
An end-to-end observability reference implementation for distributed systems and microservices on ASP.NET Core Web API, featuring OpenTelemetry instrumentation, distributed tracing, metrics collection, and Jaeger integration.
A schema-driven GraphQL reference architecture on ASP.NET Core designed to solve over-fetching and under-fetching bottlenecks in complex relational data graphs beyond traditional RESTful endpoints.
29 mission-critical systems delivered across banking, FinTech, public sector, and industrial enterprises.
Visit my GitHub profile for additional code samples, architectural prototypes, and open-source contributions.
Real-world commercial and public-sector systems where I led the architecture, backend engineering, or technical delivery. Filter by industry below.
Technical management and architectural preparation of European private banking operations and fintech services under the EU PSD2 directive. Enabled third-party payment providers and API consumers to securely execute financial transactions using eIDAS QWAC certificates.
Development of high-throughput backend services and message dispatcher pipelines for next-generation internet banking front-ends. Refactored non-RESTful legacy API calls into compliant REST architecture and established resilient end-to-end transaction flows for newly introduced banking capability sets.
End-to-end instant retail lending engine built for a high-volume mobile digital wallet. Encompasses real-time rule eligibility checks, dynamic amortization schedule computation, in-app contract signing/approval, and instant digital disbursement via .NET Core Web API backend services.
Online bancassurance integration enabling internet banking users to purchase and instantly activate insurance policies online within configured coverage limits and real-time premium payment processing.
Analysis, modern service adaptation, and production deployment of core backend services powering the redesigned mobile banking application for a global banking group, aligning legacy infrastructure with new mobile interface requirements.
Continuous backend feature development, defect resolution, performance tuning, and change request adaptations for a flagship high-traffic mobile banking platform.
Comprehensive ERP/MES software engineered to manage the entire lifecycle of industrial tire mold manufacturing from order requisition to shop-floor delivery. Tracks personnel workflows, operator performance, warehouse inventory, waybills, and invoicing.
Specialized management system developed for Metropolitan Municipality Social Services Department to regulate welfare operations. Features an ASP.NET web management hub paired with a Windows 8 mobile tablet client for field caseworkers.
Enterprise application software customized on Microsoft SharePoint for Metropolitan Municipality, delivering corporate intranet portals, document lifecycle management, and municipal inter-departmental approval workflows.
Company vehicle entry/exit tracking and requisition system developed with ASP.NET (C#) and integrated with LOGO Human Resources ERP. Enforces organizational authorization hierarchies for vehicle requests, paired with a dedicated .NET WinForms gatehouse security module.
Enterprise CMMS platform (I-MaSS) tracking preventive, predictive, and periodic maintenance, service tickets, and equipment faults. Combines a desktop management console (.NET WinForms), ruggedized Windows Mobile handhelds for technicians, and an ASP.NET web reporting dashboard.
Zero-driver barcode printing tool built with .NET WinForms (C#). Sends raw hardware print commands via parallel port (LPT1) directly using printer PPLA programming language without requiring third-party drivers or spoolers.
End-to-end recruitment and candidate tracking software for corporate HR teams. Career portal applicant submissions collected via ASP.NET web service seamlessly flow into a centralized .NET WinForms review suite with automated candidate communication workflows.
Corporate IT asset and computer inventory tracking suite developed with .NET WinForms (C#) and integrated with LOGO HR. Includes barcode scanning support and a background WMI diagnostic utility that inspects network endpoints to audit hardware specs, installed software, and unauthorized component swaps.
Web-based telemetry monitoring and SCADA surveillance platform for regional natural gas stations. Enables gas engineers to monitor real-time temperature, flow rates, and pressures, generate dynamic trend charts, configure alerts, and design customized audit reports using ASP.NET (C#) and AJAX.
Mission-critical emergency response (187) and excavation safety management software (I-Ness) for natural gas utilities. Orchestrates dispatch commands via Windows Service over GPRS to field technicians equipped with .NET Smart Device handhelds, syncing outcomes to central .NET WinForms dispatch consoles through Web Services.
Automated site intake and ledger software for municipal landfill and excavation dumping sites across distributed locations. Combines a resilient offline-capable C# WinForms gate intake tool with an ASP.NET central web management portal for consolidated compliance reporting.
Comprehensive municipal permitting and logistics platform built with ASP.NET (C#). Regulates waste hauler licenses, generates digital transport acceptance documents against verified company vehicle manifests, and enables field enforcement officers to inspect permits in real time via a mobile web app.
Specialized clinic management software (I-Patient) tailored for corporate occupational health departments. Tracks employee patient charts, scheduled periodic check-ups, vaccine schedules, and daily sickbay records with rich statistical summaries and graphical trend analysis in .NET WinForms (C#).
Distributed weighbridge automation solution (I-KOS). Captures raw tonnage readings from scale indicators at remote sites using C# WinForms, syncing transaction payloads to an ASP.NET central web intelligence platform featuring customizable reports.
Municipal social welfare software administering aid allowances and smart debit cards for qualifying families across the metropolitan area. Built with ASP.NET (C#) to automate beneficiary qualification auditing, electronic balance allocations, and banking card debit integrations.
Desktop reporting suite built with .NET WinForms (C#) directly interfacing with Logo Tiger2 ERP and Logo HR relational schemas. Enables financial controllers to build custom SQL-driven reports, dynamic visualizations, and export datasets to external formats.
Web-based counterpart of the Logo ERP reporting engine developed with ASP.NET (C#). Provides platform-independent, browser-accessible financial reporting, department dashboards, and executive analytics anytime, anywhere.
Nationwide microfinance and social loan system engineered for Special Provincial Administrations across Turkey. Covers borrower application, socio-economic vetting, training tracks, capital disbursement, and installment collections with a companion mobile field interface in ASP.NET (C#).
Hybrid enterprise procurement software (I-Pass). Employees initiate and track requests via an ASP.NET web portal, while procurement officers evaluate supplier quotes, manage multi-level approvals, and issue purchase orders using a robust C# WinForms operations suite.
Automated sales proposal generation platform built with ASP.NET (C#). Produces standardized, dynamic Adobe Acrobat PDF commercial quotes, tracks client revisions and deal pipelines, and enforces role-based pricing and discount authorization limits.
End-to-end fire extinguisher maintenance and compliance suite (I-Fes). Field technicians record barcode scans, pressure levels, and inspection audits on .NET Smart Device terminals; data syncs to a central WinForms console and an ASP.NET customer portal for compliance certification.
Call center ticketing and dispatch routing platform built in .NET WinForms (C#) with deep email server SMTP/POP3 synchronization. Automatically routes citizen/customer complaints to assigned department leads, accompanied by an ASP.NET web reporting portal for supervisor SLA tracking.
Enterprise internal ticketing and work-order resolution suite. Departments submit and track support requests via an ASP.NET (C#) web platform, while team leads and executives analyze workload metrics and SLA reports using a specialized desktop C# WinForms Reporting Tool.