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Data Scientist

Pay
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Work setting
Not stated
Employment
Full-time — employment source
Employment type in the employer’s posting: Full time
From the employer’s posting

Before you apply

Work authorization
Must already have the right to workRight to Work, Location & Sponsorship

What you’ll work on

Full posting
  • Define client problems, success measures, data needs and analytical approach with experts

  • Prepare and analyse data, then develop and evaluate models or prototypes

  • Present findings, assumptions and limitations to clients and nontechnical audiences

  • Contribute technical ideas, estimates and evidence to proposals

  • Turn promising prototypes into reliable solutions with reproducible documentation

From the employer’s posting
Speak with subject matter experts and clients to define the problem, success measures, data needs and an appropriate analytical approach.
Prepare and analyse data, develop and evaluate models or prototypes using statistical methods, forecasting, machine learning or language models where suitable.
Present findings, assumptions and limitations to subject matter experts, clients and nontechnical audiences
Contribute technical ideas, estimates and evidence to proposals
develop promising prototypes into reliable solutions
Apply at Icf International

Posting record

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Status in our records
Live
First seen by us
Oct 19, 202616 days ago
Recorded sightings
43
Last seen by us
Nov 5, 2026

These dates show when we found the posting. Check the employer’s website to confirm it is still accepting applications.

How this job compares

Time since we first saw it

Day 16

Similar jobs usually come down between day 7 and day 56.

At Icf International, jobs usually come down by about day 17.

From 10,204 similar postings that came down, and 39 of Icf International’s. Coming down is not always a hire.

Icf International is hiring

23 open jobs

Open jobs by the week we first saw them, last 12 weeks.

  • Takes jobs down at a usual pace
  • 4% of open jobs were reposted
Hiring record

See how this role fits your experience

Add your resume and we’ll mark which of these tools you already use, and point out anything in the posting that could rule you out.

  • Python
  • SQL
Where the posting names them
What you will bring - Hands-on experience in Python for analysis and modelling, including common data and machine learning libraries, ability to use SQL to extract, join and check data. - Sound grounding in statistics and machine learning, including regression or classification, forecasting, validation, baseline comparisons and appropriate performance measures.

Your next step

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Already applied? Track this application

Has Icf International posted this job before?

Yes. We’ve followed 2 other Data Scientist jobs there since October 2026. All 2 are still up.

  1. LondonStill up after 23 days, first seen Oct 13
  2. New DelhiStill up after 20 days, first seen Oct 16
  3. This jobUp 17 days so far, first seen Oct 19

About Icf International

People
About 8,400 in 2025, down 10% from the year before.Annual report (SEC Form 10-K)
Company
Listed as ICFI.

Demand for Data Scientist roles

New Data Scientist postings at the employers we follow are down 3% over the last 5 weeks compared with the 5 before.

Weekly new Data Scientist postings at the same employers, from the week of August 17 to the week of October 26. The fewest in a week was 1,411, the most 2,973, and the latest week had 1,826.
August 17Last week

Each bar is one week of new postings. The darkest bars are the last 5 weeks.

Counted from the hiring pages we’ve followed for at least five weeks, so employers we add don’t look like growth. Updated weekly.

About the role

We file this job under Data Scientist, by the work the posting describes.

Data scientists use statistics and models to answer harder questions, such as whether a change worked, what demand will look like next quarter, or which customers are likely to leave.

Postings usually ask for Python or R, SQL, statistics, experiment design and common machine learning methods.

Unlike an ML engineer, a data scientist's main output is often an analysis or a first model, not software running inside a product.

US government figures for data scientists

Median yearly pay, May 2025
$120,230
Expected change, 2025 to 2035
34.6% more jobsagainst 3.5% for all jobs

Source: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) and Employment Projections (2025 to 2035). Occupation code 15-2051.

Job description

View original posting ↗

ICF supports governments and organisations on challenges in areas such as energy, the environment, aviation, health and public policy. Our data science team works with subject matter experts to turn evidence and data into practical solutions for clients in the UK and EU.

You will help deliver data science and AI solutions across client projects, working with subject matter experts to frame questions, analyse evidence and deliver findings. This is a hands-on technical and consulting role: you will discuss needs with specialists, present approaches and results to varied audiences, and contribute to proposals. You will join an established team and work across technically diverse projects.

 

What you will do

  • Speak with subject matter experts and clients to define the problem, success measures, data needs and an appropriate analytical approach.
  • Prepare and analyse data, develop and evaluate models or prototypes using statistical methods, forecasting, machine learning or language models where suitable.
  • Present findings, assumptions and limitations to subject matter experts, clients and nontechnical audiences, invite challenge and adapt the work to their feedback.
  • Collaborate with colleagues across different technical disciplines to document work, make results reproducible and develop promising prototypes into reliable solutions.
  • Contribute technical ideas, estimates and evidence to proposals, and manage your work across several concurrent projects.
  • Share methods and reusable approaches with colleagues across the data science team.

 

What you will bring

  • Hands-on experience in Python for analysis and modelling, including common data and machine learning libraries, ability to use SQL to extract, join and check data.
  • Sound grounding in statistics and machine learning, including regression or classification, forecasting, validation, baseline comparisons and appropriate performance measures.
  • Practical familiarity with using large language models in analysis or prototyping, including prompting, checking outputs against evidence and recognising privacy, accuracy and reliability risks.
  • Experience preparing imperfect data, building reproducible analyses and writing maintainable code with version control and testing.
  • Ability to take an ambiguous question from discovery to a working demonstration, explain assumptions and uncertainty, and judge whether a solution is worth developing for operational use.
  • Confidence working independently and engaging stakeholders across teams, clear written and spoken English for technical and nontechnical audiences.
  • A relevant degree or equivalent practical experience in a quantitative field.

 

Useful additional experience

  • Experience working in public policy, government, research or evaluation
  • Experience in consulting, public policy research or client-facing delivery, familiarity with cloud platforms, APIs, data pipelines or deployment.
  • Experience building AI agents or applications that connect language models to data and tools, such as retrieval-based systems. We can train someone with strong core skills.

 

What you can expect

You will work alongside colleagues with a wide range of technical and subject expertise, tackle varied client challenges from discovery to delivery. We will support your career development with ongoing training and opportunities to deepen both your technical and consulting skills.

 

Right to Work, Location & Sponsorship 
We welcome applications from candidates based anywhere in the world. For roles located in the UK, Belgium, Spain, or Germany, applicants must: 

  • Hold the right to work in the country where the role is based, or be eligible for visa sponsorship, which we may consider on a case-by-case basis, and 
  • Be physically present in that country by their first day of employment (or able to relocate beforehand). 

Unless stated otherwise, relocation support is not automatically provided.


#Indeed #LI-CC1


Bot and Third-Party Applications

Please note that this application must be submitted directly by the applicant for consideration. Failure to do so may result in the application being excluded for consideration.  Applicants needing an accommodation for disability or religious purposes in connection with the application process should contact Candidateaccommodation@icf.com for assistance.

Working at ICF

ICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.

Candidate AI Usage Policy

At ICF, we are committed to ensuring a fair and equitable interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate or assist with responses during interviews (whether in-person or virtual) is not permitted. This policy is in place to maintain the integrity and authenticity of the interview process. 

However, we understand that some candidates may require accommodations that involve the use of AI. If such an accommodation is needed, candidates are instructed to contact us in advance at candidateaccommodation@icf.com. We are dedicated to providing the necessary support to ensure that all candidates have an equal opportunity to succeed. 


 

Madrid, Spain (ES01)
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Location & working pattern

Madrid, Spain (ES01)

Working pattern and location restrictions need checking in the full posting.

Work authorization
You will work alongside colleagues with a wide range of technical and subject expertise, tackle varied client challenges from discovery to delivery. We will support your career development with ongoing training and opportunities to deepen both your technical and consulting skills. Right to Work, Location & Sponsorship We welcome applications from candidates based anywhere in the world. For roles located in the UK, Belgium, Spain, or Germany, applicants must: - Hold the right to work in the country where the role is based, or be eligible for visa sponsorship, which we may consider on a case-by-case basis, and - Be physically present in that country by their first day of employment (or able to relocate beforehand).

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