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Javier Sáez GallegoJS

Javier Sáez Gallego

Data Scientist & Machine Learning

€400/day
A Coruña, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Javier

Hello, I'm Javier Saez,

Data scientist with 8+ years of experience in projects related to data, machine learning, and programming.

In brief, my experience could be summarized as:

- 3 years working as a data scientist & ML in a startup, with satellite images, computer vision, geospatial algorithms, backend developer, databases, and product ideation
- 1 year as a consultant and freelancer, developing backends for apps, and with prototypes of various products, for example, factory failure prediction.
- 2 years as a wind turbine warranty engineer, predicting future productions.
- 3 years of PhD at the University of Copenhagen, researching new forecasting and optimization techniques applied to electricity markets

They say about me that I am careful, organized, I write good code, I learn quickly, and I always focus on delivering the right solution. I like open and sincere communication, so let's talk!

How can I help you?

- Everything related to data: extraction, cleaning, saving, automation... data engineer.
- Development of machine learning products: time series prediction, computer vision, deep learning, LLM, you name it. We start with a prototype and feasibility analysis, up to cloud deployment.
- API and backend development
- Web application prototype
  • Spanish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Reforestum
    Senior Data Scientist
    June 2019 - Today (7 years and 1 month)
    Contributed to defining and developing key-company products with a data centric perspective, ranging from deploying machine learning models, implementing geospatial algorithms, and building APIs and data ingestion pipelines. More details are below:
    - Co-define a forest monitoring product that leverages near-real-time satellite images to enhance the transparency of the carbon credits. Develop and deploy machine learning models in production in a Kubernetes cluster.
    - Develop a geospatial splitting service to support the company's core product of collaborative reforestation.
    - Implement several data ingestion pipelines to process voluntary carbon market data.
    - Support various web app developments and company tasks by deploying APIs, managing databases, and creating dashboards.
  • Minsait
    Senior Data Specialist
    January 2020 - April 2020 (3 months)
    A Coruña, Spain
    As a consultant, I contributed to identifying potential business cases where machine learning models could bring value to the clients. On a practical level, I participated in the research, development, and implementation of predictive maintenance models of ATMs for one of the biggest banks in Europe. Developed dashboards and interactive graphs.
  • TecdeSoft Automation
    Data Scientist
    September 2019 - December 2019 (3 months)
    I was responsible for creating business value with available data from existing clients, focusing on data-driven actions. I worked on two projects: predictive maintenance of factory areas and optimal scheduling of hydroelectrical power plants. As the first data scientist in the company, I was also responsible for teaching my colleagues the principles of data science and machine learning.

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Education

  • MSc Mathematical Modelling and Computation
    Danmarks Tekniske Universitet
    2012
    MSc Mathematical Modelling and Computation
  • Licenciado, Statistical Sciences and Techniques
    Universidad de Valladolid
    2011
    Licenciado, Ciencias y Técnicas Estadísticas

Skill set (19)

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