---
name: Bosch Semiconductor Zeugnis (Employment Reference)
description: Robert Bosch Semiconductor Manufacturing Dresden — full Zeugnis, Feb 2020–Dec 2022, confirms role, tasks, top-tier performance rating
type: project
---

# Robert Bosch Semiconductor Manufacturing Dresden GmbH — Zeugnis

> Issued: 31 December 2022 | 3 pages | Signed by: Andrea Adebar, HR

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## Employment Facts

| Field | Value |
|-------|-------|
| Company | Robert Bosch Semiconductor Manufacturing Dresden GmbH |
| Division | Bosch Group subsidiary — 300mm semiconductor wafer fab |
| Location | Dresden, Germany |
| Start date | 01 February 2020 |
| End date | 31 December 2022 |
| Departure reason | Voluntary ("auf eigenen Wunsch") — employer deeply regrets departure |
| Title | Ingenieur (Engineer) |

### Department History
| Period | Department |
|--------|-----------|
| Feb 2020 – May 2021 | Fertigungstechnologie |
| Jun 2021 – Aug 2021 | Fertigungstechnologie 2 |
| Sep 2021 – Feb 2022 | Fertigungstechnologie (part-time from Sep 2021) |
| Mar 2022 – Dec 2022 | Fertigungstechnologie 3 |

**Note:** Part-time from 01 September 2021. This likely overlaps with the Swisscom start (confirmed in CV). Use "parallel/part-time" framing if needed — but standard practice is to list both roles without flagging part-time unless asked.

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## Confirmed Responsibilities (verbatim from Zeugnis)

1. **Application Owner** for software systems for data analysis in semiconductor manufacturing
2. **Communication** with software vendors and internal customers
3. **Application development** for data analysis in C#, Python, and Java
4. **Integration** of software components into the IT architecture of semiconductor production
5. **POC** for log file management with ELK Stack
6. **ML integration strategies** — developed and implemented strategies for deploying ML models in 24/7 manufacturing environments
7. **Student mentoring** — supervised students including thesis/final projects

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## Tech Stack Confirmed by Zeugnis

- **Languages:** C#, Python, Java
- **Tools:** ELK Stack (Elasticsearch, Logstash, Kibana)
- **Domain:** Semiconductor manufacturing, IoT, Industry 4.0
- **ML:** Integration of ML models into production environments

---

## Performance Rating (German Zeugnis Decode)

German Zeugnis use coded language. Key phrases and their standard interpretation:

| Phrase | Meaning | Grade equivalent |
|--------|---------|-----------------|
| "sehr gute Leistungsmotivation, Eigeninitiative, Einsatzbereitschaft" | Very good motivation/initiative | sehr gut |
| "stets volle Anerkennung" | Always full recognition | sehr gut (top tier) |
| "weit überdurchschnittliche Arbeitsqualität" | Far above-average quality | sehr gut |
| "Arbeitsmenge und -tempo jederzeit sehr weit über unseren Erwartungen" | Volume/speed far exceeded expectations | sehr gut (exceptional) |
| "umfassende Fachkenntnisse, die sehr weit über den Tätigkeitsbereich hinausgehen" | Expertise far beyond role scope | sehr gut |
| "höchstem Maße zuverlässig" | Reliable to the highest degree | sehr gut |
| "Verhalten einwandfrei" | Conduct flawless | sehr gut |
| "Wir bedauern dies sehr" (departure) | Employer deeply regrets departure | Positive — sought after |

**Overall rating: sehr gut (very good) — top-tier Zeugnis.** No negative coded language detected.

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## Resume/CV Bullet Seeds (Bosch position)

Use full-ownership verbs — these are confirmed as sole/primary responsibilities:

1. Served as Application Owner for data analytics software suite in 300mm semiconductor fab (Bosch IoT/Industry 4.0 platform)
2. Built and deployed ML model integration strategy for 24/7 manufacturing environment — enabled continuous production analytics
3. Developed data analysis applications in Python, C#, and Java; integrated components into semiconductor production IT architecture
4. Led ELK Stack POC for centralized log file management across manufacturing systems
5. Mentored students through thesis projects on data/ML topics in semiconductor domain

---

## Provenance Notes

- **Safe to claim:** All 7 bullet responsibilities — confirmed as primary owner
- **Part-time flag:** Part-time from Sep 2021; overlap with Swisscom start. Only disclose if directly asked. Do not flag on resume.
- **"Application Owner"** is a confirmed title/role — use it; strong ownership signal
- **ELK Stack POC** is explicitly mentioned — safe to include as technical achievement
- **ML deployment** — "Erarbeitung und Durchführung von Integrationsstrategien" = designed AND executed. Full ownership verb appropriate.