.NET Backend Developer
Do The Vinh.NET Backend Developer | ERP & Logistics Systems
3+ years in enterprise ERP/logistics systems with strong SQL, reporting, and business-rule depth.
Production experience across WinForms/WPF clients, hybrid WCF/Web API flows, finance/import workflows, and data reconciliation. Intentionally moving deeper into ASP.NET Core Web API and backend service roles on top of that enterprise foundation.
- ERP / Logistics
- Finance Reporting
- SQL Performance
- Workflow Systems
Start with the H2ALL / FastLink case study for the clearest view of enterprise production depth.
Flagship Proof
H2ALL / FastLink
Enterprise ERP / logistics case study
Production Proof
Evidence From Production Work
Selected evidence around reporting performance, data correctness, and large-result-set handling in ERP/logistics workflows.
Report runtime improvement
Improved heavy finance and reporting flows used by operations and finance teams.
Lower DB/query cost
Reduced expensive report/query paths through plan review, query cleanup, and targeted indexing.
Rows handled reliably
Supported large search and report flows where performance and usability both mattered in production.
Reconciliation accuracy
Improved business-key mapping and beginning-balance handling to strengthen import debt reporting.
H2ALL / FastLink
My strongest production story comes from finance, import, reporting, reconciliation, and workflow-heavy modules inside a large enterprise ERP/logistics platform.
Debt & Reporting Logic
Import debt reports, beginning-balance handling, and reporting accuracy in finance-heavy flows.
Hybrid Service Flow
WinForms clients working through WCF, Web API, and internal service wrappers.
Large Result-Set Handling
Reporting and search flows improved through SQL tuning, batching, and reconciliation work.
The case study keeps ownership scoped carefully: assigned backend-oriented business logic, reporting, and cross-layer tracing inside a complex ERP platform rather than ownership of the full system.
Recruiter Priority Read
Start here for the clearest view of enterprise scope, technical depth, and backend fit.
Architecture Direction
Hybrid enterprise flow
WinForms / WPF Client
Operational UI, reporting, workflow-heavy screens
WCF + Web API + Internal Wrappers
Hybrid request flow through service wrappers and endpoints
SQL Server / MySQL Reporting & Reconciliation
Performance-sensitive reporting, reconciliation logic, and large-result-set handling
Backend-Focused Skill Set
Core strengths first, supporting areas clearly labeled
Strong production depth in enterprise desktop systems, with deliberate positioning toward backend .NET and service-oriented work.
Production-proven strengths are shown first. Any current backend-growth areas are labeled explicitly.
Production-Proven Strengths
Core
Backend & APIs
Core
Data & Persistence
Core
Business Domain Knowledge
Supporting Depth
Supporting
Messaging / Integration / DevOps
Supporting
Enterprise Desktop Background
Supporting Public Work
Supporting Backend Projects
A small public project set that supports backend delivery, APIs, persistence, and transition work. The flagship production proof remains the H2ALL / FastLink case study.
NZWalks
ASP.NET Core 8 solution with a Web API for regions, walks, authentication, and image upload, plus a server-rendered MVC UI that currently manages regions through the API.
Shows progression beyond basic API scaffolding into CRUD APIs, JWT auth, EF Core with SQL Server, image upload, and API/UI integration in a small multi-project .NET solution.
BulkyBook (v2)
Earlier supporting ASP.NET Core MVC project covering identity, admin workflows, reporting, and Stripe-backed checkout flows.
Earlier public ASP.NET Core MVC practice project that helped establish the web/backend foundation before moving deeper into APIs.