Recommended expert
Daniel (Juan) Yariguay
Data Analyst
Experience
Mar 2025 - Mar 2025
1 monthData Analyst
Mayerfeld Consulting
- Exploratory data analysis and visualization; preparation of technical reports.
- Active participation in feedback sessions and continuous improvement.
- Prepared weekly technical reports and presentations.
- Collaborated on real data analysis projects across different business sectors.
Feb 2025 - Aug 2025
7 monthsData Engineer
RockStar Data
- Increased operational efficiency and reduced costs.
- Implemented automated pipelines for insight extraction and anomaly detection.
- Designed and trained forecasting and classification models applied to real data from clubs and restaurants.
- Collaborated to translate business needs into scalable technical solutions.
Mar 2024 - Oct 2024
8 monthsJunior Database Administrator
Oktana Corporation
- Maintenance and optimization of SQL systems with security protocols.
- Optimization of data management for monthly reports.
- Supported version control, ensuring continuous availability.
Feb 2023 - Nov 2023
10 monthsData Analyst Intern
Banco de Crédito BCP
- Development of Power BI dashboards for different departments.
- Improved data quality processes, reducing reporting time by 30%.
- Collection, cleaning, and integration of data from multiple sources.
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Information Technology (1 year), Banking and Finance (1 year), and Food and Beverage (0.5 years).
Information Technology
Banking and Finance
Food and Beverage
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Business Intelligence (2 years) and Information Technology (1 year).
Business Intelligence
Information Technology
Summary
Data Analyst with training in Data Science and hands-on experience in technical analysis, visualization, data transformation, and project documentation. I have developed solutions with Power BI, SQL, Python, and Machine Learning models. I have applied inferential statistics and predictive models in practical environments. Passionate about turning data into strategic decisions, with a special interest in cloud, artificial intelligence, process automation, and business-oriented data tools. Seeking a Data Analyst/BI or Junior Data Engineer role with business impact.
Languages
Spanish
NativeEnglish
IntermediateFrench
ElementaryEducation
Oct 2024 - Aug 2025
Complutense University of Madrid (UCM)
Master in Data Science, Big Data & Business Analytics · Data Science, Big Data & Business Analytics · Madrid, Spain
Dec 2023 - Jun 2024
Bolivian Private University (UPB)
Diploma in Machine Learning & Data Science · Machine Learning & Data Science · Bolivia
Mar 2013 - Dec 2018
San Simón University (UMSS)
BSc in Chemical Engineering · Chemical Engineering · Cochabamba, Bolivia
Profile
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Frequently asked questions
Do you have questions? Here you can find further information.
Where is Daniel based?
Daniel is based in Madrid, Spain.
What languages does Daniel speak?
Daniel speaks the following languages: Spanish (Native), English (Intermediate), French (Elementary).
How many years of experience does Daniel have?
Daniel has at least 2 years of experience. During this time, Daniel has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 1 year and 6 months. Note that Daniel may not have shared all experience and actually has more experience.
What roles would Daniel be best suited for?
Based on recent experience, Daniel would be well-suited for roles such as: Data Analyst, Data Engineer, Junior Database Administrator.
What is Daniel's latest experience?
Daniel's most recent position is Data Analyst at Mayerfeld Consulting.
What companies has Daniel worked for in recent years?
In recent years, Daniel has worked for Mayerfeld Consulting, RockStar Data, Oktana Corporation, and Banco de Crédito BCP.
Which industries is Daniel most experienced in?
Daniel is most experienced in industries like Information Technology (IT), Banking and Finance, and Food and Beverage. Daniel also has some experience in Professional Services.
Which business areas is Daniel most experienced in?
Daniel is most experienced in business areas like Business Intelligence and Information Technology (IT).
What is Daniel's education?
Daniel holds a Master in Data Science, Big Data & Business Analytics from Complutense University of Madrid (UCM), a Bachelor in Machine Learning & Data Science from Bolivian Private University (UPB) and a Bachelor in Chemical Engineering from San Simón University (UMSS).
What is the availability of Daniel?
The availability of Daniel needs to be confirmed.
What is the rate of Daniel?
Daniel's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.
How to hire Daniel?
To hire Daniel, click the Meet button on the profile to request a meeting and discuss your project needs.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
1000
750
500
250
Market avg: 700-860 €
Market avg: 700-860 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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