Erhan Yigit - Systems Management Consultant

Q: Where is Erhan based?

Erhan is based in Frankfurt, Germany .

Q: What languages does Erhan speak?

Erhan speaks the following languages: German (Native), English (Intermediate), Turkish (Intermediate) .

Q: How many years of experience does Erhan have?

Erhan has at least 31 years of experience. During this time, Erhan has worked in at least 2 different roles and for 7 different companies . The average length of individual experience is 4 years and 11 months . Note that Erhan may not have shared all experience and actually has more experience.

Q: What companies has Erhan worked for in recent years?

In recent years, Erhan has worked for Freelance software developer .

Q: Which industries is Erhan most experienced in?

Erhan is most experienced in industries like Information Technology , Banking and Finance , and Pharmaceutical .

Q: Which business areas is Erhan most experienced in?

Erhan is most experienced in business areas like Information Technology and Product Development .

Q: Which industries has Erhan worked in recently?

Erhan has recently worked in industries like Information Technology .

Q: Which business areas has Erhan worked in recently?

Erhan has recently worked in business areas like Information Technology and Product Development .

Q: What is Erhan's education?

Erhan attended education in Mathematical-Technical Assistant .

Recommended expert

Frankfurt, Germany

Check rate

Experience

Jan 2007 - Nov 2018

11 years 11 months

Commerzbank

Newly developed an ASP.NET web application for mortgage financing
Maintained and enhanced it both functionally and technically (expanded to other loan types, connected to various services, developed custom web services)
Analyzed business requirements in close cooperation with business units
Created IT concepts and technical documentation
Developed backend and frontend
Designed and implemented automated build, deployment, and testing processes
Created scripts to automatically generate data access layers (C# classes and SQL scripts) and integrated them into build and deployment processes
Languages: C#, PowerShell, JavaScript
Technologies: ASP.NET, Windows Forms, XML Web Services, Windows Services, MS SQL Server, Entity Framework, unit testing, automated build, deployment, and testing processes
Tools: Visual Studio 2005–2015, Team Foundation Server, DevExpress, Rational ClearCase, Rational ClearQuest, CruiseControl.net

Oct 2006 - Dec 2006

3 months

Software development company for Pfizer

Developed two ASP.NET applications to map internal company processes
Languages: C#
Technologies: ASP.NET, Plumtree Portal Server, MS SQL Server
Tools: Visual Studio .NET 2003, Visual SourceSafe

Jul 2006 - Aug 2006

2 months

Software development company for Pfizer

Migrated ASP applications to ASP.NET as part of a portal migration
Created target and realization concepts, implemented and tested
Languages: C#
Technologies: ASP.NET, Plumtree Portal Server, MS SQL Server
Tools: Visual Studio .NET 2003, Visual SourceSafe

Jan 2003 - Dec 2005

3 years

Sinius GmbH

Rollout management software (05/2005 – 12/2005): Designed and developed a web-based rollout management application based on ASP.NET with Oracle integration. Languages: C#, PL/SQL. Technologies: ASP.NET, Windows Forms, ODP.NET, Application Blocks. Tools: Visual Studio .NET 2003, Crystal Reports (VS.NET Edition), Visual SourceSafe, Infragistics NetAdvantage, PL/SQL Developer.
Inspection software (03/2005 – 12/2005): Developed a web-based site inspection application using ASP.NET, XML Web Services, and smart clients with Oracle integration. Languages: C#. Technologies: ASP.NET, XML Web Services, Windows Forms (smart client), WSE, ODP.NET, Application Blocks. Tools: Visual Studio .NET 2003, Crystal Reports (VS.NET Edition), Visual SourceSafe, Infragistics NetAdvantage, NUnit.
Patch and build management software (01/2005 – 04/2005): Designed and developed a system for managing build and patch information. Languages: C#. Technologies: XML Web Services, Windows Forms, WSE, Application Blocks, MS SQL Server. Tools: Visual Studio .NET 2003, Visual SourceSafe.
System configuration and management system (01/2003 – 06/2005): Developed a system for installation, configuration, software distribution, Citrix farm configuration, hardware, software, and user inventory with reporting capabilities on Windows systems. Languages: C#, C++, WSH (JScript, VBScript). Technologies: ASP.NET, XML Web Services, Windows Services (.NET and classic), COM server (ATL), WSE, ADSI, WMI, MFCOM, Application Blocks, O/R mapping, MS SQL Server. Tools: Visual Studio .NET 2003, Visual SourceSafe, NUnit.

Jul 1999 - Present

26 years 10 months

Freelance software developer

Training courses – mainly in the area of Microsoft technologies:
Azure
New .NET technologies (up to .NET 9, C# 13)
…
Various personal projects for private use or practice, e.g.:
Small applications using various APIs (e.g., bitcoin.de, IG, Todoist)
Extracting and displaying information from iPhone backups and third-party apps
…
Languages: C#, PowerShell, Python
Technologies: Azure, .NET Core, .NET 6-9, WPF, MVVM, Blazor, Git, Docker, WSL, Web API, Entity Framework, SQLite, MS SQL Server, …
Tools: Visual Studio 2019-2022, Visual Studio Code, Postman, GitHub, …

Nov 1998 - Dec 2002

4 years 2 months

Sinius GmbH/Deutsche Bank AG

Participated in various projects in development, automation, and systems management

Jan 1998 - Jun 1999

1 year 6 months

Systems Management Consultant

SerCon GmbH

Mar 1995 - Dec 1997

2 years 10 months

System Developer

SRZ Rheinland GmbH

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Banking and Finance, and Pharmaceutical.

Information Technology

Banking and Finance

Pharmaceutical

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology and Product Development.

Information Technology

Product Development

Summary

Professional experience since 1995. Started as a developer at Sparkassen Rechenzentrum Rheinland GmbH, later as a consultant at SerCon GmbH
Freelance software developer since 1999. Main assignments were Commerzbank for 12 years, Deutsche Bank for 7 years
Specialized in Microsoft technologies since 2003
Fullstack developer focusing on Microsoft technologies (C#, .NET Framework up to .NET 9, SQL Server)
Keeping up to-date through training courses and private projects.

Skills

Programming And Scripting Languages

C# +++
Powershell, Html, Css, Javascript, Typescript ++
Python +

Frameworks

.Net Framework, .Net Core, Asp.net, Entity Framework +++

Application Types

Asp.net Mvc, Asp.net Core Mvc, Asp.net Core Web Api, Winforms, Wpf, Xunit +++
Blazor Server ++

Development Tools

Microsoft Visual Studio, Visual Studio Code, Sql Server Management Studio, Postman +++

Source Control And Ci/cd

Microsoft Team Foundation Server, Git +++
Azure Devops +

Processes

Incremental Development, Agile Development (Scrum, Kanban), Oop +++

Patterns And Practices

Solid, Mvvm, Dependency Injection +++

Databases

Microsoft Sql Server, Sqlite ++

Other

Azure, Docker, Wsl ++

Languages

German

Native

English

Intermediate

Turkish

Intermediate

Education

Sep 1992 - Feb 1995

Training as a Mathematical-Technical Assistant · Mathematical-Technical Assistant · Germany

Certifications & licenses

AZ-900: Microsoft Azure Fundamentals

Microsoft Certified Solution Developer (MCSD) For Microsoft .NET

Microsoft Certified Application Developer (MCAD) For Microsoft .NET

Microsoft Certified Professional

Statistics

Experience

Total positions 8

Experience in Information Technology 31 y

Avg length 6 y 3 m

Longest experience 26 y 9 m

Expertise

Recent roles Systems Management Consultant, System Developer

Main industries Information Technology, Banking and Finance, Pharmaceutical

Main business areas Information Technology, Product Development

Qualifications

Certifications earned 4

Profile

Created

August 2025

Last Update

April 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Erhan based?

Erhan is based in Frankfurt, Germany.

What languages does Erhan speak?

Erhan speaks the following languages: German (Native), English (Intermediate), Turkish (Intermediate).

How many years of experience does Erhan have?

Erhan has at least 31 years of experience. During this time, Erhan has worked in at least 2 different roles and for 7 different companies. The average length of individual experience is 4 years and 11 months. Note that Erhan may not have shared all experience and actually has more experience.

What roles would Erhan be best suited for?

Based on recent experience, Erhan would be well-suited for roles such as: Systems Management Consultant, System Developer.

What companies has Erhan worked for in recent years?

In recent years, Erhan has worked for Freelance software developer.

Which industries is Erhan most experienced in?

Erhan is most experienced in industries like Information Technology, Banking and Finance, and Pharmaceutical.

Which business areas is Erhan most experienced in?

Erhan is most experienced in business areas like Information Technology and Product Development.

Which industries has Erhan worked in recently?

Erhan has recently worked in industries like Information Technology.

Which business areas has Erhan worked in recently?

Erhan has recently worked in business areas like Information Technology and Product Development.

What is Erhan's education?

Erhan attended education in Mathematical-Technical Assistant.

Does Erhan have any certificates?

Erhan has 4 certificates. Among them, these include: AZ-900: Microsoft Azure Fundamentals, Microsoft Certified Solution Developer (MCSD) For Microsoft .NET, and Microsoft Certified Application Developer (MCAD) For Microsoft .NET.

What is the availability of Erhan?

Erhan will be available from May 2026.

What is the rate of Erhan?

Erhan's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.