Wissenschaftler

PTB; Braunschweig; Vor Ort; EUR 60.000 - 80.000; Vollzeit

Zusammenfassung

A leading metrology institute in Germany is seeking a Scientist with a PhD in Physics, Electrical Engineering, or Optical Engineering. This full-time role involves developing solutions for noise reduction in quantum communication systems and contributing to experimental capabilities. The ideal candidate should have experience in quantum optics, and strong teamwork skills, and possess a B1 level in German and B2 level in English. Applications are open until February 23, 2026. An exciting opportunity to shape the future of quantum technologies awaits!

Leistungen

Overview of benefits on careers page

Qualifikationen

• PhD or equivalent experience in physics, electrical engineering, optical engineering, or related field.
• Practical experience in quantum optics and entanglement detection.
• Knowledge of laboratory automation and data analysis.

Aufgaben

• Support Working Groups on Metrology for Quantum Communication.
• Develop technical solutions for noise reduction on fiber links.
• Contribute to establishing new experimental capabilities.

Kenntnisse

Quantum optics / entanglement sources and detectors

Fiber links and their stabilization

Time and frequency transfer

Quantum communication protocols

Low-noise measurement and control techniques

Photonic integration

Experimental skills

Teamwork and communication skills

Ausbildung

PhD in physics, electrical engineering, optical engineering, or related field

Tools

Python

MATLAB

Jobbeschreibung

Ihr Profil

The art of measurement made in Germany. Striving to perfect it is the mission of the 2100 employees of PTB the Physikalisch-Technische Bundesanstalt. As Germanys national metrology institute and a leading center of research we operate in an international environment to develop world-class measurement standards. We at PTB work to ensure that people and organizations can trust the measurements they use.

At our Braunschweig site we are looking to fill the following position in Department 4.5 Applied Radiometry:

Scientist (f/m/d) with a PhD in Physics Electrical Engineering or Optical Engineering
Remuneration Group 14 TVöD Bund fixed contract until 30. June 2029 Full-time

Ihre Aufgaben / Responsibilities

You will support Working Groups 4.56 Metrology for Quantum Communication and 4.34 Frequency Distribution via Optical Fiber at the interface of quantum communication and frequency metrology. Your responsibilities include:

• Further development of technical solutions for noise reduction on fiber links e.g. phase/frequency noise polarization drift and dispersion and loss management to stabilize the distribution of high-fidelity entanglement.
• Leading contributions to the establishment of new experimental and software-based capabilities including automated data acquisition calibration routines and simulation/emulation frameworks as well as their integration into existing activities.
• Scientific responsibility for the substantial further development of the NQL research infrastructure in collaboration with ongoing projects along with support for the users of the testbed.
• Foundational work on multi-party scenarios such as interference channels with two receivers or network topologies with multiple communicating parties as contributions to the advancement of the Niedersachsen Quantum Link 2.0.
• Investigation of applications and protocols on the NQL fiber link that directly benefit from entanglement distribution (beyond QKD) including the identification of particularly promising near-term use cases.
• Identification of future research directions that leverage entanglement as a resource beyond QKD e.g. for distributed sensing time/frequency and synchronization services or certified random-number generation.

Ihr Profil / Your profile

• PhD (or equivalent experience) in physics electrical engineering optical engineering or a related field
• Practical experience in at least one of the following areas: quantum optics / entanglement sources and detectors fiber links and their stabilization time and frequency transfer quantum communication protocols low-noise measurement and control techniques photonic integration
• Experience with laboratory automation and data analysis e.g. in Python or MATLAB; knowledge of FPGA or embedded control systems is an advantage
• Ability to translate innovative concepts into robust practical systems
• Commitment and strong experimental skills
• Independent structured and goal-oriented scientific working style
• Strong teamwork and communication skills
• German language skills (B1 level) and English language skills (B2 level)
• A valid drivers license (Class B) is beneficial
• Willingness to travel domestically and internationally

Wir bieten / We offer

Become part of QuantumFrontiers 2 and actively shape the further development of entanglement distribution across optical fiber. This position will help translate fundamental concepts into practical network technologies, working in close interaction and with high visibility in the collaborative interdisciplinary regional research environment as well as with national and European partners.

You can find an overview of our benefits on our careers page.

Das ist uns wichtig / This is important to us

PTB promotes gender equality and strongly encourages applications from female candidates. At the same time we strive to reflect the diversity of our society. We therefore welcome every application submitted regardless of the candidates gender, cultural or social background, religion, ideology or sexual identity. If equally suited to the position, disabled persons or persons having equivalent status under German law will be given preference.

Ihre Bewerbung / Your application

For subject-related questions concerning this position please contact Department 4.5: Dr. Tara Liebisch, phone: 49, email: .

We look forward to receiving your application by 23 February 2026 under Ref. No. B. Please click on the button: ONLINE BEWERBEN. This will directly lead you to our application portal where you can upload your documents (CV, certificates, Cover letter). Applications via email cannot be considered. With your application you accept the data protection regulations.

English version

The art of measurement made in Germany. Striving to perfect it is the mission of the 2100 employees of PTB the Physikalisch-Technische Bundesanstalt. As Germanys national metrology institute and a leading center of research we operate in an international environment to develop world-class measurement standards. We at PTB work to ensure that people and organizations can trust the measurements they use.

At our Braunschweig site we are looking to fill the following position in Department 4.5 Applied Radiometry:

Scientist (f/m/d) with a PhD in Physics Electrical Engineering or Optical Engineering
Remuneration Group 14 TVöD Bund fixed contract until 30. June 2029 Full-time

Your tasks

You will support Working Groups 4.56 Metrology for Quantum Communication and 4.34 Frequency Distribution via Optical Fiber at the interface of quantum communication and frequency metrology. Your responsibilities include:

• Further development of technical solutions for noise reduction on fiber links e.g. phase/frequency noise polarization drift and dispersion and loss management to stabilize the distribution of high-fidelity entanglement.
• Leading contributions to the establishment of new experimental and software-based capabilities including automated data acquisition calibration routines and simulation/emulation frameworks as well as their integration into existing activities.
• Scientific responsibility for the substantial further development of the NQL research infrastructure in collaboration with ongoing projects along with support for the users of the testbed.
• Foundational work on multi-party scenarios such as interference channels with two receivers or network topologies with multiple communicating parties as contributions to the advancement of the Niedersachsen Quantum Link 2.0.
• Investigation of applications and protocols on the NQL fiber link that directly benefit from entanglement distribution (beyond QKD) including the identification of particularly promising near-term use cases.
• Identification of future research directions that leverage entanglement as a resource beyond QKD e.g. for distributed sensing time/frequency and synchronization services or certified random-number generation.

Your profile

• PhD (or equivalent experience) in physics electrical engineering optical engineering or a related field
• Practical experience in at least one of the following areas: quantum optics / entanglement sources and detectors fiber links and their stabilization time and frequency transfer quantum communication protocols low-noise measurement and control techniques photonic integration
• Experience with laboratory automation and data analysis e.g. in Python or MATLAB; knowledge of FPGA or embedded control systems is an advantage
• Ability to translate innovative concepts into robust practical systems
• Commitment and strong experimental skills
• Independent structured and goal-oriented scientific working style
• Strong teamwork and communication skills
• German language skills (B1 level) and English language skills (B2 level)
• A valid drivers license (Class B) is beneficial
• Willingness to travel domestically and internationally

We offer

Become part of QuantumFrontiers 2 and actively shape the further development of entanglement distribution across optical fiber. This position will help translate fundamental concepts into practical network technologies, working in close interaction and with high visibility in the collaborative interdisciplinary regional research environment as well as with national and European partners.

You can find an overview of our benefits on our careers page.

This is important to us

PTB promotes gender equality and strongly encourages applications from female candidates. At the same time we strive to reflect the diversity of our society. We therefore welcome every application submitted regardless of the candidates gender, cultural or social background, religion, ideology or sexual identity. If equally suited to the position, disabled persons or persons having equivalent status under German law will be given preference.

Your application

For subject-related questions concerning this position please contact Department 4.5: Dr. Tara Liebisch, phone: 49, email: .

We look forward to receiving your application by 23 February 2026 under Ref. No. B. Please click on the following button: ONLINE BEWERBEN. This will directly lead you to our application portal where you can upload your documents (CV certificates Cover letter). Unfortunately we cannot accept applications sent via email. With your application you accept the data protection regulations.