Associate Data Scientist at IIIIIIUS

About the role

Responsibilities:
- Work with data scientists and subject-matter experts to clarify project questions, available data and desired outputs.
- Clean, combine and explore datasets; write clear, documented Python code and record assumptions and validation checks.
- Build and compare straightforward statistical and ML models (e.g., regression, classification); use baselines and evaluate accuracy, limitations and potential bias.
- Contribute to prototypes, including appropriate use of language models; validate and test outputs before sharing.
- Prepare concise charts, written findings and presentation materials; explain results to colleagues and, with support, to clients and subject-matter experts.
- Follow code review, reproducible workflows and contribute to team documentation and knowledge sharing.

Requirements:
- Hands-on data science experience from a project, internship, research placement or commercial role.
- Proficiency in Python and experience producing clear, reproducible code; willingness to adopt version control and collaborative practices.
- Solid grounding in statistics and common ML methods, including model training, testing and evaluation.
- Strong attention to data quality, documentation and the ability to communicate technical ideas clearly in written and spoken English.
- Relevant degree or equivalent practical experience in a quantitative or social science field.
- Desirable: exposure to public policy/government work, experience with large language models or AI agents, and familiarity with Git, cloud services or data visualization.

Responsibilities

You will work with subject matter experts to clean, analyze, and model datasets to provide practical solutions for clients. Additionally, you will contribute to prototypes and communicate findings through charts and presentations.

Requirements

Candidates should have hands-on experience in data science through projects or internships and proficiency in Python. A relevant degree in a quantitative or social science field is required, along with strong communication skills.

Key skills

• Python — in 1095 other listings on The Stack
• Data science — in 81 other listings on The Stack
• Statistics — in 46 other listings on The Stack
• Machine learning — in 268 other listings on The Stack
• Regression — in 13 other listings on The Stack
• Classification — in 14 other listings on The Stack
• Data cleaning — in 8 other listings on The Stack
• Data visualization — in 106 other listings on The Stack
• Model evaluation
• Git
• Consulting
• Technical communication
• Documentation
• Language models
• AI agents

On The Stack (as of 2026-10-29)

• IIIIIIUS has 4 other listings on The Stack, 4 of them marked as offering visa sponsorship.
• 65 visa-sponsored jobs in Spain on The Stack, posted in the last 60 days.
• 59 visa-sponsored data scientist jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about IIIIIIUS

Is this Associate Data Scientist role still open?

It was posted on 2026-10-22 and is listed as active on The Stack. Confirm on IIIIIIUS's application page before applying.

Does IIIIIIUS offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on IIIIIIUS's site.

Where is this role located?

The listing gives the location as Spain. It is marked on-site.

What skills does this role ask for?

The listing names: Python, Data science, Statistics, Machine learning, Regression, Classification, Data cleaning, Data visualization, Model evaluation, Git, Consulting, Technical communication, Documentation, Language models, AI agents.