Sebastian P.-ML Engineer
Check rate
Experience
ML Engineer
Aller Media AS
- Designed and deployed NLP/LLM-driven content recommendation algorithms for multilingual Nordic news brands.
- Built and maintained end-to-end ML pipelines (Kubeflow, TFX, Vertex AI).
- Migrated custom ETL workflows to Airflow / Composer.
- Implemented CI/CD for ML models, automated testing, and monitoring of pipelines.
- Collaborated with data engineering teams to enhance the Nordic data platform architecture.
- Worked closely with integrating ML systems and endpoint APIs in the backend.
- Conducted experimentation and A/B testing using traffic and behavioral data.
- Tech stack: GCP (BigQuery, Vertex AI, Pub/Sub, Artifact Registry, Composer (Airflow), GCS, BigTable), Python, SQL, TensorFlow, HuggingFace, NLP, LLMs, Kubeflow, TFX, Docker, Spark
Data Scientist
Zurich Insurance Ltd
- Designed and implemented the insurance fraud detection algorithm, recipient of the Zurich Global Innovation Award.
- Developed ETL processes and automated scoring pipelines in Python and SQL.
- Built predictive models across claims, customer behavior, and operational data.
- Presented findings to senior leadership and collaborated with actuaries, underwriting, and claims teams.
- Published work in the Data Science Journal on fraud analytics methodology.
- Tech stack: Python, TensorFlow, SQL, Machine Learning, Fraud Analytics, Power BI
Data Analyst
Ministry of Transport
- Big data analysis and database design (SQL Server and Python).
- Econometric evaluation of transport projects.
- Collected and analyzed data to create reports for the national Ministry of Transport.
Data Analyst
Centrales de la Costa Atlantica
- Statistics and econometric analysis of the fuel usage in thermic generation central.
- Collected data and created reports using STATA.
- Worked with visualization tools to present data to the business.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Media and Entertainment, Insurance, Government and Administration, and Utilities.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Business Intelligence, and Research and Development.
Summary
10+ years of experience designing, deploying, and scaling machine-learning solutions —specialized in LLMs, recommendation systems, and full ML lifecycle automation.
Strong background in statistics (PhD), cloud pipelines (GCP, Kubeflow, Airflow) and software programming (Python, Tensorflow, SQL, GCP, Spark, unit/integration testing)
Skills
- Programming: Python, Sql, Git, Bash
- Ml & Ai: Tensorflow, Huggingface, Nlp, Tfx
- Data & Cloud: Gcp, Bigquery, Spark, Airflow, Kubeflow, Vertexai
- Devops: Docker, Ci/Cd
- Analytics: Statistics, Ml, A/B Testing, Pandas, Scikit-Learn, Powerbi, Looker
Languages
Education
University of Barcelona
PhD, Statistics · Statistics · Barcelona, Spain
University of Barcelona
MSc, Competition & Regulation · Competition & Regulation · Barcelona, Spain
National University of La Plata
MSc, Economics · Economics · La Plata, Argentina
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Sebastian is based in Madrid, Spain.
Sebastian speaks the following languages: Spanish (Native), English (Advanced), Norwegian (Intermediate).
Sebastian has at least 13 years of experience. During this time, Sebastian has worked in at least 3 different roles and for 4 different companies. The average length of individual experience is 3 years and 2 months. Note that Sebastian may not have shared all experience and actually has more experience.
Based on recent experience, Sebastian would be well-suited for roles such as: ML Engineer, Data Scientist, Data Analyst.
Sebastian's most recent position is ML Engineer at Aller Media AS.
In recent years, Sebastian has worked for Aller Media AS.
Sebastian is most experienced in industries like Media and Entertainment, Government and Administration, and Insurance. Sebastian also has some experience in Utilities.
Sebastian is most experienced in business areas like Information Technology, Product Development, and Business Intelligence. Sebastian also has some experience in Research and Development.
Sebastian has recently worked in industries like Media and Entertainment.
Sebastian has recently worked in business areas like Information Technology and Product Development.
Sebastian holds a Doctorate in Statistics from University of Barcelona, a Master in Competition & Regulation from University of Barcelona, a Master in Economics from National University of La Plata and a Bachelor in Economics from National University of La Plata.
The availability of Sebastian needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Similar freelancers
Discover other experts with similar qualifications and experience
Anton K.
Antonio C.
Eduard V.
Christian S.
Stephan S.
Markus B.
Nino S.
Hernani C.
Ronald F.
Marcel W.
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a ML Engineer
María C.
Renato D.
Vimal R.
Alessandro P.
Thomas H.
Almudena B.
Henning G.
Ashutosh K.
Simona T.
Manuel P.
Nearby freelancers
Professionals working in or nearby Madrid, Spain
Rafael M.
Alberto G.
Rebecca W.
Laurenz S.
Miguel M.
Yurii G.
Gunther H.
Antonio Q.
Davide M.
Carlos G.
