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

Experience

Jan 2007 - Nov 2018

11 years 11 months

Commerzbank

New development of an ASP.NET web application for mortgage financing
Maintenance as well as functional and technical enhancements (expanding to other loan types, connecting to various services, developing custom web services)
Analysis of business requirements in close collaboration with business units
Creation of IT concepts and technical documentation
Development in both back and front end
Design and implementation of automated build, deployment and test processes
Creating scripts for automated generation of data access layers (C# classes and SQL scripts) and integrating 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 test 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

Development of two ASP.NET applications for modeling 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

Migration of ASP applications to ASP.NET as part of a portal migration
Creation of target and realization concepts, implementation and testing
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): Design and development of a web-based rollout management software 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.
On-site Inspection Software (03/2005 – 12/2005): Development of a web-based on-site inspection software 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): Design and development of a system to manage 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): Development of 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 (both .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 9 months

Freelance Software Developer

Trainings – mainly in Microsoft technologies:
Azure
New .NET technologies (up to .NET 9, C# 13)
…
Various personal projects for private use or practice, for example:
Small applications against various APIs (e.g. from 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. Initially 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
Specialization in Microsoft technologies since 2003
Fullstack developer focused on Microsoft technologies (C#, .NET Framework up to .NET 9, SQL Server)
Always up to date through training and personal 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 +

Methodologies

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

Patterns And Practices

Solid, Mvvm, Dependency Injection +++

Databases

Microsoft Sql Server, Sqlite ++

Others

Azure, Docker, Wsl ++

Languages

German

Native

English

Intermediate

Turkish

Intermediate

Education

Sep 1992 - Feb 1995

Training as 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 8 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

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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 is immediately available for suitable projects.

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.