Data Science Internship - Wearables & Sensor Data (m/w/d) 80-100%

greenTEG AG; Rümlang; Hybrid; CHF 20,000 - 27,000; Full time

Benefits offered by this job

Vacation days

High-tech role

Process improvement

International team

Flexible schedule

Remote work 1–2 days/week

Social events

Job summary

greenteg AG is seeking a Data Scientist Intern – Wearables & Sensor Data to help integrate our sensor and ML solutions into customer wearable products.

The role focuses on calibrating sensors, collecting data, and validating ML models on real devices. You will develop Python tools, analyze performance, and collaborate with cross-functional teams in Zürich-Rümlang.

Qualifications

• Bachelor’s or Master’s degree (or enrolled) in Computer Science, Electrical Engineering, Applied Mathematics, Physics, or a related field.
• Valid Swiss work permit or EU/EFTA citizenship.
• Strong Python proficiency with experience in scientific and ML libraries (NumPy, SciPy, scikit-learn, TensorFlow, PyTorch).
• Solid understanding of data analysis, statistics, and machine learning fundamentals.
• Strong problem-solving skills and ability to translate real-world problems into robust solutions.
• English proficiency at C1 level.

Responsibilities

• Calibrate sensors and evaluate the performance of ML models on customer devices.
• Plan and conduct data collection and validation studies.
• Analyze, visualize, and report model performance issues observed in real-world usage.
• Develop Python tools and pipelines to support customer integration and troubleshooting.
• Simulate model performance under varying sensor characteristics (noise, sampling rate, signal quality).
• (Optional) Support compilation and deployment of embedded ML libraries on target devices.

Skills

Python

Data analysis

Machine learning

Statistics

Communication

English (C1)

Education

Bachelor's/Master's in CS/EE/Applied Math/Physics

Tools

NumPy

SciPy

scikit-learn

TensorFlow

PyTorch

Job description

greenteg AG develops high-tech thermal sensing solutions for an international customer base. In addition to industrial sensors, we provide a unique core body temperature measurement solution (CALERA®) for wearable devices.

Our technology enables a wide range of applications, including sports performance optimization, continuous and non-invasive patient monitoring, ovulation tracking, sleep analysis, and early disease detection and is integrated by various international customers on different type of wearable devices.

All solutions are developed, manufactured, and commercialized at our headquarters in Zürich-Rümlang, where interdisciplinary teams collaborate across hardware engineering, embedded systems, and machine learning.

Location: Rümlang, Switzerland

Workload: 80–100%

Start Date: Jan 2027 or upon agreement.

Tasks

To strengthen our R&D team, we are seeking a Data Scientist Intern – Wearables & Sensor Data to help our customers along the way to successfully integrate our solutions into their wearable products. You need to understand the needs and demands of each customer and make sure that our machine learning models can meet their requirements.

Main tasks:

• Calibrate sensors and evaluate the performance of our machine learning models on customer devices.

• Plan and conduct data collection and validation studies.

• Analyze, visualize, and report model performance issues observed in real-world usage.

• Develop Python tools and pipelines to support customer integration and troubleshooting.

• Simulate model performance under varying sensor characteristics (e.g., noise, sampling rate, signal quality).

• (Optional) Support compilation and deployment of embedded ML libraries on target devices.

Requirements

Education

• Bachelor’s or Master’s degree (or currently enrolled) in Computer Science, Electrical Engineering, Applied Mathematics, Physics, or a related field

Requirements

• Valid swiss work permit or EU/EFTA citizenship

• Strong proficiency in Python with experience in scientific and ML libraries (NumPy, SciPy, scikit-learn, TensorFlow, PyTorch)

• Solid understanding of data analysis, statistics, and machine learning fundamentals

• Strong problem-solving skills and ability to translate real-world problems into robust solutions

• Ability to clearly communicate technical findings to both technical and non-technical stakeholders

• English proficiency at C1 level

Nice to have

• Experience with signal processing or time-series data

• Familiarity with C programming or embedded systems

• Experience working with sensor data or wearable devices

Benefits

What we offer:

• 20 annual paid vacation days (at 100% workload).

• A stimulating role in high-tech manufacturing, involving diverse technologies.

• Collaborative participation in enhancing company processes.

• An energetic and international team.

• Flexible worktime, option for 1-2 remote days per week (at 100% workload).

• Regular social events, teambuilding, BBQ, free coffee and snacks.