Jozef (Dipl. Ing.) Darida-Developer, Tester, Architect
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Experience
Developer, Tester, Architect
PulserBot
- Developed an open-source platform for creating personalized, multi-theme, and multi-language content bots.
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.
QA Engineer – Test Automation & Dev Integration (Freelancer)
NXP Semiconductors
- Implemented test automation and validation scenarios for automotive radar firmware using Java.
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.
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.
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++.
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.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Quality Assurance, Product Development, and 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
Education
Technical University
Dipl. Ing. (Master’s Degree) · Electrical / Software Engineering
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Jozef is based in Bratislava, Slovakia.
Jozef speaks the following languages: Slovak (Native), English (Advanced).
Jozef has at least 27 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 10 months. Note that Jozef may not have shared all experience and actually has more experience.
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.
Jozef's most recent position is Developer, Tester, Architect at PulserBot.
In recent years, Jozef has worked for PulserBot, SourceLens, NXP Semiconductors, and Infineon Technologies AG.
Jozef is most experienced in industries like Telecommunication, Manufacturing, and Automotive. Jozef also has some experience in Information Technology.
Jozef is most experienced in business areas like Quality Assurance, Product Development, and Information Technology.
Jozef has recently worked in industries like Manufacturing, Automotive, and Information Technology.
Jozef has recently worked in business areas like Information Technology, Quality Assurance, and Product Development.
Jozef holds a Master in Electrical / Software Engineering from Technical University.
The availability of Jozef needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 6 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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