Jozef Darida - Developer, Tester, Architect

Q: Where is Jozef based?

Jozef is based in Bratislava, Slovakia .

Q: What languages does Jozef speak?

Jozef speaks the following languages: Slovak (Native), English (Advanced) .

Q: How many years of experience does Jozef have?

Jozef has at least 26 years of experience. During this time, Jozef has worked in at least 3 different roles and for 7 different companies . The average length of individual experience is 4 years and 9 months . Note that Jozef may not have shared all experience and actually has more experience.

Q: What is Jozef's latest experience?

Jozef's most recent position is Developer, Tester, Architect at PulserBot .

Q: What companies has Jozef worked for in recent years?

In recent years, Jozef has worked for PulserBot , SourceLens , NXP Semiconductors , and Infineon Technologies AG .

Q: Which industries is Jozef most experienced in?

Jozef is most experienced in industries like Telecommunication , Manufacturing , and Automotive . Jozef also has some experience in Information Technology .

Q: Which business areas is Jozef most experienced in?

Jozef is most experienced in business areas like Quality Assurance , Product Development , and Information Technology .

Q: Which industries has Jozef worked in recently?

Jozef has recently worked in industries like Manufacturing , Automotive , and Information Technology .

Q: Which business areas has Jozef worked in recently?

Jozef has recently worked in business areas like Information Technology , Quality Assurance , and Product Development .

Recommended expert

Bratislava, Slovakia

Experience

Jan 2025 - Present

1 year 3 months

Developer, Tester, Architect

PulserBot

Developed an open-source platform for creating personalized, multi-theme, and multi-language content bots.

Jan 2025 - Present

1 year 3 months

Developer, Tester, Architect

SourceLens

Designed an LLM-based system for structured analysis of source code and web content.
Defined expected agent behavior, evaluated outputs for correctness and completeness, and reduced hallucinations using AST-based validation.

Jan 2022 - Dec 2023

2 years

Germany

QA Engineer – Test Automation & Dev Integration (Freelancer)

NXP Semiconductors

Implemented test automation and validation scenarios for automotive radar firmware using Java.

Jan 2019 - Dec 2024

6 years

Austria

QA Engineer – Test Automation & Dev Integration (Freelancer)

Infineon Technologies AG

Designed structured test scenarios for embedded firmware.
Defined expected behavior.
Automated evaluation pipelines using Python, Jenkins, pytest.

Jan 2012 - Dec 2018

7 years

Germany

QA Engineer – Test Automation & Dev Integration (Freelancer)

Apple / Intel Mobile GmbH

Tested and evaluated Intel mobile modems (LTE, NB-IoT, LTE Cat M1) in live networks and simulator environments.
Designed structured test scenarios, reviewed system behavior, and validated results across global test labs.

Jan 2007 - Dec 2012

6 years

Germany

QA Engineer – Test Automation & Dev Integration (Freelancer)

Nokia / Nokia Siemens Networks

Tested and validated LTE, LTE Advanced, UMTS, and WCDMA base station components (L1 PHY, L2 MAC/U-plane).
Designed and documented test cases, analyzed failures, and validated protocol behavior using C++.

Jan 2000 - Dec 2006

7 years

Slovakia

Software Engineer – Software Design

Nokia / Alcatel

Designed and implemented core network software modules (SGSN), including RANAP, Charging, and Observation modules.
Developed GSM test frameworks using C++.

Developer, Tester, Architect

PythonLens

Transforms complex software projects into an interactive, local database, allowing developers to instantly visualize dependencies.
Predicts the impact of changes and proactively improves code quality.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Telecommunication, Manufacturing, Automotive, and Information Technology.

Telecommunication

Manufacturing

Automotive

Information Technology

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Quality Assurance, Product Development, and Information Technology.

Quality Assurance

Product Development

Information Technology

Summary

Senior software test engineer and architect with 20+ years of experience in systematic test design, behavioral validation, and automation across embedded, telecom, and safety-critical systems. In recent years, focused on LLM-based systems, including designing structured evaluation scenarios, defining golden paths, reviewing agent outputs, and identifying failure modes such as hallucinations and incorrect reasoning.

Skills

Python
Llm Evaluation
Ai Agents
Test Automation
Llm & Ai Agent Evaluation
Test Scenario Design (Golden Path, Edge Cases, Failure Modes)
Behavioral Scoring & Output Review
Prompt Engineering & Robustness Testing
Python Test Automation (Pytest, Custom Frameworks)
Static Code Analysis (Ast)
Ci/cd (Jenkins, Github Actions)
Technical Documentation & Knowledge Transfer
Python
Java
C
C++
Pytest
Jenkins
Git
Jira
Duckdb
Llm Apis

Languages

Slovak

Native

English

Advanced

Education

Technical University

Dipl. Ing. (Master’s Degree) · Electrical / Software Engineering

Statistics

Experience

Total positions 8

Experience in Telecommunication 19 y

Avg length 3 y 9 m

Longest experience 6 y 11 m

Global Experience

Countries worked in 3 (Germany, Austria, Slovakia)

Primary country Germany

Expertise

Recent roles Developer, Tester, Architect, QA Engineer – Test Automation & Dev Integration (Freelancer), Software Engineer – Software Design

Main industries Telecommunication, Manufacturing, Automotive

Main business areas Quality Assurance, Product Development, Information Technology

Qualifications

Highest degree Master

Profile

Created

January 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Jozef based?

Jozef is based in Bratislava, Slovakia.

What languages does Jozef speak?

Jozef speaks the following languages: Slovak (Native), English (Advanced).

How many years of experience does Jozef have?

Jozef has at least 26 years of experience. During this time, Jozef has worked in at least 3 different roles and for 7 different companies. The average length of individual experience is 4 years and 9 months. Note that Jozef may not have shared all experience and actually has more experience.

What roles would Jozef be best suited for?

Based on recent experience, Jozef would be well-suited for roles such as: Developer, Tester, Architect, QA Engineer – Test Automation & Dev Integration (Freelancer), Software Engineer – Software Design.

What is Jozef's latest experience?

Jozef's most recent position is Developer, Tester, Architect at PulserBot.

What companies has Jozef worked for in recent years?

In recent years, Jozef has worked for PulserBot, SourceLens, NXP Semiconductors, and Infineon Technologies AG.

Which industries is Jozef most experienced in?

Jozef is most experienced in industries like Telecommunication, Manufacturing, and Automotive. Jozef also has some experience in Information Technology.

Which business areas is Jozef most experienced in?

Jozef is most experienced in business areas like Quality Assurance, Product Development, and Information Technology.

Which industries has Jozef worked in recently?

Jozef has recently worked in industries like Manufacturing, Automotive, and Information Technology.

Which business areas has Jozef worked in recently?

Jozef has recently worked in business areas like Information Technology, Quality Assurance, and Product Development.

What is Jozef's education?

Jozef holds a Master in Electrical / Software Engineering from Technical University.

What is the availability of Jozef?

Jozef is immediately available full-time for suitable projects.

What is the rate of Jozef?

Jozef's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.