All Healthcare Architecture Open Source AI Product Fintech Hardware SaaS Operations Industrial Internal Tools Automation Platform Ops Trading Systems Research Platform
Healthcare Appointment and Integration Platform Backend and integration work for public web/mobile healthcare platforms, middleware, appointment/e-result surfaces, CRM, payments, video visits, search, OTP login, consent handling, and PII-safe logging.
ASP.NET Core CQRS/MediatR SQL Server Hangfire
Shows the strongest integration-heavy backend story: reliability, supportability, security hygiene, and operational discipline after the first successful API call.
Built .NET APIs and middleware that orchestrated hospital appointment and lab-result systems. CRM, payment, video-call, content, and search integrations behind patient-facing surfaces. Rate limiting, background jobs, validation, reCAPTCHA, and diagnostic logging around external calls. Architecture Layered .NET 7/CQRS APIs for memorial.ro. Tenant-aware hospital middleware unifying Bilmed, Pusula, SAP, IYS, and MobilDev flows. Patient-facing appointment/e-result facade with hardened cookies and strict input hygiene. Operations PII-safe logging through hashing and sanitization. Hangfire jobs for indexing and content maintenance. Full outbound call logging for support and forensics. resume.md 5- Memorial/* freelance/upwork/portfolio-projects/1-healthcare-appointment-integration-platform
Multi-Tenant Clean Architecture Backend Multi-tenant decarbonization and emissions-governance backend with audit/history tracking, metadata APIs, domain events, Azure storage, OpenAI integration, and CI/CD to Azure App Service.
.NET 9 Clean Architecture CQRS/MediatR EF Core
CleanArchitecture.Extensions Open-source NuGet ecosystem extending Jason Taylor's Clean Architecture template without forking it, focused on composable cross-cutting backend primitives.
.NET 10 NuGet MediatR FluentValidation
FiberFits AI Nutrition Platform AI-powered nutrition platform where users log meals by text/photo and receive structured nutrition analysis, maintenance-energy planning, and progress insights.
.NET 9 Next.js 15 OpenAI SQL Server
Banking, OTP and Settlement Integration Jeweler tablet, back-office, and bank-settlement workflows with OTP-gated JWT APIs, EF6 DB-first persistence, banking integrations, SMS OTP, identity checks, and audit logging.
.NET Framework 4.7.2 EF6 JWT SOAP/REST
Merchant Kiosk and Backoffice Platform Hybrid desktop/web merchant platform with kiosk-grade WinForms client, browser-to-hardware bridge, camera/scanner/printer workflows, media uploads, and MVC backoffice.
WinForms CefSharp ASP.NET MVC 5 EF6
Insurance SaaS Backend Platform Multi-tenant insurance sales and advisory backend with modular layering, auditing, edition/feature gating, insurer calculators, payments, storage, messaging, and CI/CD.
.NET 6 ABP/ASP.NET Zero PostgreSQL Docker
Fleet Tire Lifecycle Platform Multi-tenant fleet tire lifecycle backend for customers, vehicles, tires, warehouses, operations, measurements, SAP-synced catalogs, exports, and storage abstraction.
.NET 8 PostgreSQL CQRS/MediatR Hangfire
Hydrotherapy Treadmill HMI Browser-based HMI for a hydrotherapy treadmill, bridging AJAX calls to Modbus TCP PLC control for programs, speed, pumps, heater, lighting, presets, and alarms.
ASP.NET Web Forms C# Modbus TCP PLC
Spare Parts Catalog and Internal Tools Textile spare-parts catalog portal and internal tooling with searchable part pages, admin CRUD, images/docs, validation, reports, exports, and operations ownership.
ASP.NET Web Forms WinForms SQL Server IIS
Media Processing Windows Service Windows Service for server-side image/video handling, processing, deployment, status tracking, and publishing workflows across web properties.
.NET Framework 4.5 Windows Service SQL Server T-SQL
Retiree Benefits API Platform Multi-repo retiree health, benefits, CMS, content, notification, and engagement platform work across APIs, React admin UI, Nginx proxy, MongoDB, object storage, and deployment validation.
APIs React MongoDB Kubernetes/OpenShift
MT5 Trading Algorithm and Visualizer Personal deterministic multi-timeframe continuation trading-system workspace for MT5 with kernel-owned facts, EA runtime state, visualization, portfolio scanning, and verification discipline.
MQL5 MetaTrader 5 Algorithmic Trading Risk Controls
.NET Trading Research Platform Personal .NET 10 trading research platform translating the MT5 strategy into a contract-first engine, replay/backtesting stack, research factory, schemas, adapter boundaries, and analytics groundwork.
.NET 10 C# Backtesting JSON Schema
Shows the strongest integration-heavy backend story: reliability, supportability, security hygiene, and operational discipline after the first successful API call.
Built .NET APIs and middleware that orchestrated hospital appointment and lab-result systems. CRM, payment, video-call, content, and search integrations behind patient-facing surfaces. Rate limiting, background jobs, validation, reCAPTCHA, and diagnostic logging around external calls. Architecture Layered .NET 7/CQRS APIs for memorial.ro. Tenant-aware hospital middleware unifying Bilmed, Pusula, SAP, IYS, and MobilDev flows. Patient-facing appointment/e-result facade with hardened cookies and strict input hygiene. Operations PII-safe logging through hashing and sanitization. Hangfire jobs for indexing and content maintenance. Full outbound call logging for support and forensics. resume.md 5- Memorial/* freelance/upwork/portfolio-projects/1-healthcare-appointment-integration-platform