Data Scientist

HORAIZON; Delft; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Residence permits and visas

Career growth opportunities

Job summary

HORAIZON Technology BV in Delft, the Netherlands, seeks a Data Scientist who enjoys building end-to-end data solutions. You will own projects, analyze diverse data types, and shape new capabilities in a small team, making a tangible impact.

You should communicate clearly, take initiative, and help others solve problems. The role combines data analysis, backend development with Django and REST APIs, and ML model development across biology-inspired datasets.

Qualifications

• Bachelor’s, Master’s or PhD in a quantitative field is welcome.
• Experience using Python for data analysis and back-end development.
• Experience with ML tools and deploying models to production.

Responsibilities

• Turn scientific and customer needs into practical data solutions.
• Build and improve data pipelines and analytics workflows.
• Automate processing steps for reliability and performance.
• Develop backend services and REST APIs integrate data from multiple systems.
• Work with databases and client-facing web applications.
• Develop and evaluate machine learning models across varied data types.
• Visualise results and explain findings to technical and non-technical audiences.
• Identify improvements and drive delivery.

Skills

Python

Backend development

Machine learning

Communication

Education

Bachelor/Master/PhD in quantitative field

Tools

Django

REST APIs

PyTorch

scikit-learn

Job description

HORAIZON Technology BV is a biomedical AI company that turns complex biological data into practical insights. Our platforms support near real-time analysis and decision support across the microbiome and a growing range of other omics modalities. We combine modern machine learning with scalable pipelines and clear visualisation to help our customers move from measurement to action faster.

The role

We are growing and looking for a Data Scientist who enjoys building and improving things from end to end. You will take ownership of development projects and data analysis, help shape new capabilities, and work in a small team where your contribution makes a visible difference.

We are looking for someone who communicates clearly, actively works with colleagues and takes initiative. You should feel comfortable bringing ideas forward, asking questions, sharing progress and helping others solve problems.

The data we work with is unusually varied: signals and sound, images and video, free text, and molecular data spanning genetics, epigenetics, the microbiome, proteomics and metabolomics. Each brings different challenges, and part of your role will be choosing methods that fit the problem. Clear visualisation and explanation of results are central to the work.

What you will do

• Work closely with colleagues to turn scientific and customer needs into practical solutions
• Build and improve data pipelines and analytics workflows
• Automate processing steps and improve their performance and reliability
• Develop backend services and REST APIs, integrating data from different systems
• Work with databases and contribute to internal and client-facing web applications
• Develop and evaluate machine learning models across varied data types
• Visualise results and explain findings clearly to technical and non-technical audiences
• Proactively identify improvements, propose solutions and follow through on delivery

What we offer

• Competitive salary matched to your experience and qualifications
• Real ownership and opportunities to learn in a growing biomedical AI company
• Diverse projects where your work goes into production and creates practical value
• Room to grow through coaching and training
• Assistance with residence permits and visas
• A friendly, collaborative team that values ideas and initiative

Requirements

We care about your ability, curiosity and how you work with others. Talented bachelor’s graduates, master’s graduates and PhDs are all welcome. We match the responsibilities and salary to what you bring.

Must have

• Excellent communication skills: you explain ideas clearly, listen carefully and keep colleagues informed about progress, challenges and next steps
• Strong teamwork: you collaborate proactively, share knowledge and support colleagues in achieving shared goals
• Initiative and ownership: you spot what needs doing, propose practical solutions and follow through without waiting for detailed instructions
• Strong interest in biology and/or healthcare
• Experience with Python and backend development, such as Django and REST APIs
• Experience with AI and machine learning tools, such as PyTorch or scikit-learn
• A degree in a quantitative discipline, such as Mathematics, Computer Science, Engineering, AI or a related field

Big plus but not required

• Deep learning experience with sound, images or video
• Bioinformatics or omics data analysis experience
• Experience deploying models or data pipelines into production

Who you are

You enjoy solving problems, building useful tools and delivering high-quality work. You can work independently while staying closely connected to the team. You are open to feedback, willing to ask for help early and keen to contribute beyond your own individual tasks.