Johannes Dohmen

ABOUT ME

Software developer and architect with over 20 years of professional experience and deep knowledge of software development, especially in C++ and Linux, as well as broad knowledge through familiarity with the workings of programming languages, operating systems, networks, UIs, and concepts behind design patterns and software architectures. I leverage my expertise profitably in projects and processes to develop high-quality software.

Experienced in the conception of distributed systems, partly with a centralized server, as well as autonomous systems with monolithic or modular applications with a clear, component-oriented architecture.

Performant in modern and high-quality C++ programming, aligned with the state-of-the-art (TDD, Design Patterns, Best Practices, analysis tools, CI, language standards, ...).

Strong in analyzing problematic implementations, both top-down from conception, through design to implementation, and bottom-up starting from concrete source code and application crashes. Skilled in finding memory problems such as buffer overflows, memory leaks, etc., and in solving the problems at various levels.

QUALIFICATIONS

Programming Languages:

C++ 03 | 11 | 14 | 17 (Excellent)

Shell/Bash (Very Good)

Java (Good)

PHP (Good)

JavaScript (Good)

Python (Basics)

Prolog (Basics)

Web Technologies:

HTML

CSS

Skills:

Team player

Proactive

Analytical

Solution-oriented

Socially competent

Self-critical

Protocols:

Web: TCP, UDP, HTTP, MQTT

IOT: OPC UA

Formats:

XML (XSD, XPATH)

JSON

Development Tools:

Eclipse

make

gdb

wireshark

netcat

nmap

valgrind

eletric-fence

dia

UML Modeling:

- Structure Diagrams: Class Diagrams, Object Diagrams

- Behavior Diagrams: Activity Diagrams, Sequence Diagrams, State Diagrams

System Programming:

- Linux

- Debian Package Management

DBMS:

- SQL

- PostgreSQL

Unix Tools:

sed, awk, vi, ...