Malt welcome

Welcome to Rafael's freelance profile!

Malt gives you access to the best freelancers for your projects. Contact Rafael to discuss your project or search for other freelancer profiles on Malt.

Rafael Kollyfas
Data Science, Software Engineering
  • Suggested rate
    $305 / day
  • Daily rate details

    Freelancer rate (excluding tax)
    Malt service fees (excluding tax)
    Total (excluding tax)
    This rate is for suggestive purposes only. The freelancer will send you a tailored quote based on the details provided in your project proposal.
  • Experience0-2 years
  • Response rate100%
  • Response time1 hour
The project will begin once you accept Rafael's quote.
Select your freelancers
Add freelancers to your shortlist and contact them all at once!
By contacting up to 6 freelancers, you double your chances of finding the right person for your project.
Location and workplace preferences
Cambridge, England, United Kingdom
Remote only
Primarily works remotely

Project length

  • ≤ 1 month
  • Between 1-3 months
  • Between 3-6 months
  • ≥ 6 months

Business sector

Would prefer to avoid:
  • Agriculture
  • Architecture & Urban Planning
  • Culture
  • Wine & Spirits

Company size

  • 2-10 people
  • 11 - 49 people
  • 50 - 249 people
  • 250 - 999 people
  • 1000 - 4999 people
+1 other

≥ 5000 people


Freelancer code of conduct signed

Read the Malt code of conduct
Verified email
Share this profile
Expertise (22)
Rafael in a few words
Hey there!

I have a proven track record of delivering outstanding results in data analysis and I have mastered the art of machine learning and deep learning modelling.

My education, which includes a distinguished MPhil in Health Data Science from the University of Cambridge, a 90.5% distinction overall degree mark in my MSc in Artificial Intelligence from the University of St Andrews, and a first-class BSc in Computer Science from Newcastle University, has given me a strong foundation in multiple programming languages such as Python, SQL, R, Java, Matlab, Javascript, and HTML/CSS. Through the development of numerous side projects, freelance jobs, and research, I have also honed my skills in cutting-edge technologies and frameworks such as Scikit-learn, Tensorflow, Pandas, Numpy, Matplotlib & Seaborn, Node.js, Firebase, and Flask which I will use to elevate your project to the next level.

To be more precise, I can help you in:

- Data preprocessing and cleaning
- Supervised/ Unsupervised learning
- ML and DL model development
- Model optimisation
- Regression analysis
- Hypothesis verification
- Clustering
- Time series analysis
- Image processing
- Developing a web platform where users can interact with the model / present your findings
- Full-stack web platform
- Web Scraping

With a proactive personality and a love for learning, I am always eager to take on new challenges and excel in any situation. I always bring my best to the table and I am beyond excited about the opportunity to collaborate with you!

Do you really want to delete this item?

  • Google

    Menlo Park, CA, USA

    September 1998 - Today   25 years
    If I had to sum up my life up to this point, I'd say it's been one heck of a ride...

Do you really want to delete this item?

Do you really want to delete this item?


Do you really want to delete this item?


Do you really want to delete this item?