I'm Panagiotis Vangelatos

Software Engineer | Senior SAP Business One Developer

10+ years building SAP Business One add-ons, integrations and enterprise solutions. Passionate about C#, .NET, SQL and business process automation.

10+
Years Exp.
25+
Clients
15+
Add-ons
5
Integrations

About Me

Who I Am

👤

Your Photo Here

Hi! I'm Panagiotis Vangelatos, a Software Engineer with over 10 years of experience in SAP Business One development. I specialize in building add-ons, integrations and enterprise solutions.

I hold a Master's degree from the University of Piraeus in Advanced Software Development Technologies. I've worked with 25+ clients in C#, SAP Business One SDK, T-SQL and SAP HANA, delivering custom solutions, Crystal Reports and system integrations.

Location

Glyfada, Attica, Greece

Experience

10+ Years

Email

panagiotis.vag@gmail.com

Languages

Greek, English (B2)

What I Work With

Skills & Technologies

SAP Business One

SAP Business One

SAP B1 SDK B1 Usability Package SAP HANA SAP Crystal Reports SAP B1 Server/Client Add-on Development
Programming

Programming

C# Java T-SQL SAP HANA SQL
Frameworks

Frameworks & Architectures

.NET Framework .NET 10 ASP.NET Core WebAPI WinUI 3 & Fluent Design MVVM Architectural Pattern
🛠️

IDEs

Visual Studio IntelliJ IDEA Android Studio
OS

OS

Windows Linux Debian

My Work

Work Highlights

SAP B1 Add-on Development

Development of custom add-ons for SAP Business One using C# and SAP Business One SDK for 25+ clients, including Petrogaz, Revoil, Cap Gemini, Pharmaserve Lilly, Win Medica, Palamidis and more.

C# SAP Business One SDK T-SQL SAP HANA SQL B1 Usability Package

DIAS Payment Integration

Integration of the DIAS payment service with SAP Business One for online and offine payments.

C# SAP Business One SDK Payment API T-SQL SAP HANA SQL

POS Integration

Integration of Point of Sale systems with SAP Business One for real-time sync of orders, inventory and sales.

C# SAP Business One SDK ILYDA API POS Systems T-SQL SAP HANA SQL

Regate Effective EXVAN

Integration of Regate Effective EXVAN with SAP Business One.

C# SAP Business One SDK Regate EXVAN T-SQL SAP HANA SQL

Fleet Management Integration

Integration of TELENAVIS and TRUCKMAN with SAP Business One for vehicle tracking and logistics management.

C# SAP Business One SDK TELENAVIS TRUCKMAN

SAP Crystal Reports & Analytics

Creation of custom prints and reports with SAP Crystal Reports for business intelligence.

SAP Crystal Reports T-SQL SAP HANA SQL SAP Business One

Career

Experience & Education

Work Experience

SAP Business One Developer

Current

TEKA Systems Business Solutions — Chalandri, Athens, Greece

06/2014 — Present

Development of custom add-ons for SAP Business One using C# and SAP Business One for 25+ clients. Installation and configuration of SAP Business One Server, Client and Microsoft SQL Server. Creation of custom prints and reports with SAP Crystal Reports and integrations (DIAS, POS, Regate EXVAN, TELENAVIS, TRUCKMAN).

C# SAP Business One SDK T-SQL SAP HANA Crystal Reports

Internship - SAP Business One Developer

TEKA Systems Business Solutions — Chalandri, Athens, Greece

11/2013 — 05/2014

Preparation for SAP ABAP certification. Learning C# and SAP Business One SDK. Development of custom add-ons for SAP Business One.

C# SAP Business One SDK SAP ABAP T-SQL

Education

🎓

MSc — Advanced Software Development Technologies

University of Piraeus

Dept. of Informatics & Telecommunications

2019 — 2021

9.03/10
🎓

BSc — Computer Science

University of Peloponnese, School of Economics and Technology

Dept. of Computer Science and Technology.

2009 — 2015

7.91/10

Certifications & Training

SAP HANA Installation and Modeling Workshop

Hybrid SAP Business One Implementation & Support Consultant Training (TB1000, TB1100, TB1200)

SAP Business One HANA Development Workshop

HANA Virtual Installation Workshop

SUSE Linux 12 Academy

SAP Business One SDK

Always Learning

Continuous Education & Personal Projects

Actively upskilling through personal projects, exploring modern architectures and technologies to stay current with the evolving software landscape.

🏛️

Architecture & Design Patterns

Hands-on application of Clean Architecture (Domain, Application, Infrastructure, Presentation layers) combined with the MVVM pattern for building maintainable and scalable applications.

Clean Architecture MVVM Domain-Driven Design C#
🌐

Web Development

Building ASP.NET Core WebAPI applications using .NET 10 and C# 14, focusing on minimal controllers while maintaining a classic startup structure (no top-level statements).

ASP.NET Core .NET 10 C# 14 WebAPI REST
🔐

Security & Authentication

Exploring modern authentication protocols by building protected API endpoints and implementing token validation via Microsoft Entra (formerly Azure Active Directory).

Microsoft Entra JWT OAuth 2.0 API Security
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Desktop UI — WinUI 3

Designing and prototyping modern Windows desktop interfaces using WinUI 3 and the Fluent Design System, applying MVVM for clean separation of UI and business logic.

WinUI 3 Fluent Design XAML Windows App SDK
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AI Tools & Productivity

Active use of AI-assisted development tools to improve productivity, code quality and problem-solving across daily engineering tasks.

ChatGPT Google Gemini Claude AI Claude Code

Get In Touch

Let's Work Together

I'm open to new opportunities and collaborations. Don't hesitate to reach out!