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# Rotational Program Development Engineer [Signal Integrity]

- **Company:** VIAVI Solutions GmbH
- **Location:** Eningen unter Achalm, Germany
- **Contract:** Temporary contract
- **Skills:** Data Analysis, Computer Programming, Electronic Design Automation, Ethernet, Python (Programming Language), MATLAB, PCI Express, Signal Integrity, Large Language Models
- **Published:** September 3, 2026
- **Apply:** https://www.adzuna.de/details/5869358331

## About the Role

* Master's degree in Electrical Engineering, Communications Engineering, Physics, or a comparable field.
 * Minimum B2 in German and fluency in English.
 * Solid grounding in electromagnetic theory, transmission line theory, and high-frequency circuit behavior.
 * Exposure to signal integrity concepts: S-parameters, impedance matching, crosstalk, loss, and noise.
 * Familiarity with 3D EM or circuit simulation tools through coursework or project work.
 * Programming skills for data analysis (Python, MATLAB, or similar).
 * Flexibility, enthusiasm, and a systematic, independent way of working.
 * Strong analytical skills and attention to detail.
 * Strong written and verbal communication., * Hands-on lab experience with RF/high-speed test equipment (VNA, oscilloscope, BERT, spectrum analyzer).
 * Exposure to high-speed digital standards (PCIe, Ethernet, …).
 * Familiarity with PCB design/EDA tools.
 * Coursework or project experience involving high-frequency PCB design, modelling and characterization.

## Description

* Perform signal integrity simulations for high-speed interfaces (PCIe, Ethernet, SerDes) beyond 100+ Gbps, including S-parameter extraction, channel analysis, and eye diagram / BER evaluation.
 * Build and run 3D electromagnetic models of interconnects, connectors, and PCB structures and correlate simulation results against lab measurements.
 * Support PCB material selection, stack-up definition, and layout reviews of critical high-speed signal paths from an SI/PI standpoint.
 * Contribute to IBIS-AMI model simulation and equalization analysis for channel performance.
 * Design and execute calibrated lab measurements (VNA, oscilloscope), including de-embedding and time/frequency-domain analysis.
 * Use scripting for data analysis, modeling, and lab automation.
 * Document simulation and test results and present findings to cross-functional hardware, layout, and systems teams.
 * Leverage modern AI/LLM tools to increase development and analysis effectiveness.


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