Profile & portfolio — Quang Phan, PhanTech

Quang Phan.

IT consultant & software developer — owner of PhanTech

I build applications across the full stack — from gathering requirements with the business side through architecture and implementation to delivery and operations. Over the past two and a half years I have built two business systems from the first line of code in that role: a merchandise management and controlling system for agricultural trade, and a freight forwarding suite for dispatching, route planning and billing.

Focus areas

Backend

C# / .NET · ASP.NET Core · Entity Framework Core · REST APIs · Domain-Driven Design

Frontend

Angular · TypeScript · RxJS · NgRx Signals · React · WPF

Data & cloud

PostgreSQL · SQL Server · Azure · Docker · CI/CD

Documents & invoicing

E-invoicing per ZUGFeRD / EN 16931 · GoBD · SEPA payments · PDF and Office generation

Career

since May 2026

Owner · Freelance software developer

PhanTech · Hamburg

Development and consulting around business applications with .NET and Angular — from requirements to operations.

Jan 2024 – May 2026

IT consultant · Software development

NeoGeeks GmbH · Hamburg

Design, development and maintenance of line-of-business applications for mid-sized companies in client projects.

Aug 2021 – Jan 2024

Apprenticeship, application development

HS – Hamburger Software GmbH · Hamburg

Development of standard business software with C#, WPF, C++ and React. Apprenticeship shortened to 2.5 years, graduated (IHK) with grade 1.4.

Oct 2020 – Apr 2021

Software developer

eStrive Tech & Solutions · Hamburg

Development and maintenance of client websites on WordPress.

Projects

Agriculture & trade · 32 months

IGN Qualitätshopfen GmbH

ERP for the hop trade

Lead developer

Replacing sprawling Excel sheets and a legacy application with one system that carries the entire chain — from purchasing through stock management to invoicing and reporting.

C# / .NET · ASP.NET Core · PostgreSQL · Angular · DevExtreme · Azure

Rules in the system, not in people’s heads

Requirements that used to live in spreadsheets and with individual employees are now checked by the system on every posting.
Invoices that pass the audit

All business documents are generated, stored and dispatched; invoices go out as legally compliant e-invoices per ZUGFeRD / EN 16931.
Numbers for management

Reports and dashboards that make day-to-day business and planning visible.

Logistics & freight · 12 months

Freight forwarding software for a logistics provider

Developer

Order intake, dispatching, tariff calculation and billing in long-distance road haulage.

C# / .NET · PostgreSQL · Angular · Docker

Orders that read themselves in

Order documents are extracted with AI assistance and taken over as orders.
Dispatching on screen

Tours and absences are dispatched by drag and drop on a graphical plan.
Proposed tours instead of manual work

Orders are bundled into tours automatically — taking time windows, load capacity and statutory driving and rest periods into account.
Grown legacy data taken over

Historically grown data sets from the predecessor system were imported and moved into the new structure.

Further projects

Payroll · 2022 – 2023

euBP — electronically supported payroll audit

Legally mandated interface for payroll software: payroll data is submitted audit-ready to the German pension insurance.

C# · WPF

Internal tooling · 2022 – 2023

Apprentice report books

Replacing an internal desktop application with a web application for the apprentices’ report books.

C# · ASP.NET Core · Next.js

Volunteering

Coding courses, Hacker School

Leading Python courses for children and teenagers — fundamentals, first own programs, joy in building things.

Python · Course lead

Quang Phan.

Focus areas

Career

Owner · Freelance software developer

IT consultant · Software development

Apprenticeship, application development

Software developer

Projects

ERP for the hop trade

Rules in the system, not in people’s heads

Invoices that pass the audit

Numbers for management

Freight forwarding software for a logistics provider

Orders that read themselves in

Dispatching on screen

Proposed tours instead of manual work

Grown legacy data taken over

Further projects

euBP — electronically supported payroll audit

Apprentice report books

Coding courses, Hacker School

Sounds like your project? Drop me a line.