.NET Developer · Senior Software Engineer

Hi, I'm Mahi,
I build clean, scalable software.

13+ years turning complex business logic, especially in Germany's insurance world (bAV, Payroll, Benefits), into robust, maintainable systems with ASP.NET Core, Blazor, PostgreSQL and SQL Server, deployed via Docker, Terraform, and AWS.

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Mahboubeh Kouhpayeh
Toolbox

Technologies & Skills

Languages, Frameworks & Databases

C#.NETASP.NET CoreBlazor MVCWPFWinForms .NET 6/10EF CoreSignalR SQL ServerPostgreSQLT-SQL

APIs & Security

REST APIJWTOAuth 2.0 Google APIs

Cloud & DevOps

AWSTerraformDocker MicroservicesGitHub Workflows

Tools

GitVisual StudioVS Code Cursor

Methods

Clean ArchitectureAgile/Scrum DebuggingRefactoring ETL & Integration
Career

Experience

10.2023 – Present
Software Developer .NET (Web / Backend / UI)
Helmsauer Gruppe · Wemding, Germany
  • Built and evolved online calculators for insurance & salary modeling (.NET, Blazor, EF Core, PostgreSQL), including a benefit-simulation admin backend.
  • Designed a document management portal (ASP.NET Core, Blazor, REST API) for bAV/Payroll digitalization, cut manual processing time by ~40%.
  • Built a centralized Identity & Access Management system (JWT, OAuth 2.0, SQL Server) unifying security across multiple internal apps.
  • Applied deep German insurance domain knowledge (bAV, Payroll, regulatory compliance) directly into business logic.
  • Built microservices containerized with Docker; after code review and successful testing, merged to a dedicated branch triggering automated Terraform-based deployment to AWS.
04.2013 – 09.2023
Software Developer .NET (Full Stack / Windows / Backend)
Tolue Aryan Hooshmand Co. · Tehran, Iran
  • Built a Windows service for real-time GPS data capture via TCP listener, persisting data to SQL Server.
  • Developed a real-time vehicle tracking portal (ASP.NET MVC, SignalR, SQL Server) for logistics operations.
  • Implemented TCP packet duplication/forwarding for parallel real-time processing across multiple ports.
  • Built WinForms/WPF field applications for emergency vehicles running on industrial hardware (Advantech IPCs).
Background

Education & Certificates

M.Sc. Software Engineering

University, Tehran · 2015–2017

B.Sc. Computer Engineering

University, Kerman · 2004–2008

German B2 (300 hrs)

Language course · 2024–2025

ETL & System Integration

2023

.NET Core Development

2020

MCP / MCPD — ASP.NET

Microsoft · 2012–2013

MCTS — SQL Server 2008

Microsoft · 2012–2013

SQL & Database Development

2011–2012
Beyond the resume

Dev Notes & Design Ideas

A quick look at how I think, not just what I've shipped. Browse the full wiki for the complete write-ups.

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Designing a Clean Identity Provider

How I structured a shared JWT/OAuth 2.0 auth service so five internal apps could stop reinventing login.

Read the write-up →
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API Architecture Patterns

Notes on structuring API servers and clients for maintainability and versioning.

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SQL Index Fragmentation

Lessons from keeping SQL Server indexes healthy under real production load.

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Browse the Full Wiki

Everything I've documented: C#/.NET, SQL, Docker, Cloud, Automation and more.

Explore all topics →