Armin Herling | Portfolio

About

C++ software engineer specializing in compilers, native desktop applications, and build systems. I design and ship high-performance native tools and maintain open-source projects such as Caracal and CaraTest. My work emphasizes correctness, performance, and maintainability through clean APIs and robust testing.

At Treesoft since 2017, I advanced from apprentice to C++ developer. I lead end-to-end C++/Qt development, migrated codebases to CMake, and built internal tooling that measurably improved engineering productivity. I take responsibility for architecture, implementation, and long-term maintenance of core components.

Skills

C++
C#
Git
SQL
CMake
Qt
LLVM
Compilers
Databases
CI/CD
UI
UX
German
English

Experience

Software Developer C++ · Treesoft GmbH & Co. KG

Since 01.08.2020

Development and maintenance of C++ applications; migrated projects to modern build systems (CMake); performance optimizations and close collaboration with QA and product owners.

Apprentice, IT Specialist for Application Development · Treesoft GmbH & Co. KG

Since 01.08.2017

Apprenticeship focused on software development (C++/Qt); contributed to customer projects, internal tooling, testing, and documentation.

Abitur, Rahel‑Varnhagen‑Kolleg Hagen (Evening School)

2014 - 2016

Completed Abitur at Rahel‑Varnhagen‑Kolleg Hagen (evening school), external branch in Lüdenscheid, 2014 - 2016. Graduated with an overall grade of 2.3 and advanced courses in Mathematics and Biology. Coursework emphasized analytical problem-solving, independent study, and time management, demonstrating discipline and strong academic ability.