Nicolas Valderrama Barrera - Data Analyst & Digital Transformation Consultant

Q: Where is Nicolas based?

Nicolas is based in Hildesheim, Germany .

Q: What languages does Nicolas speak?

Nicolas speaks the following languages: Spanish (Native), English (Intermediate) .

Q: How many years of experience does Nicolas have?

Nicolas has at least 1 year of experience. During this time, Nicolas has worked in at least 2 different roles and for 2 different companies . The average length of individual experience is 1 year and 6 months . Note that Nicolas may not have shared all experience and actually has more experience.

Q: What is Nicolas's latest experience?

Nicolas's most recent position is Data Analyst & Digital Transformation Consultant at Management Solutions .

Q: What companies has Nicolas worked for in recent years?

In recent years, Nicolas has worked for Management Solutions and Central Bank of Colombia .

Q: Which industries is Nicolas most experienced in?

Nicolas is most experienced in industries like Banking and Finance and Government and Administration .

Q: Which business areas is Nicolas most experienced in?

Nicolas is most experienced in business areas like Business Intelligence , Information Technology , and Operations . Nicolas also has some experience in Production .

Q: What is Nicolas's education?

Nicolas holds a Master in Data Analytics from University of Hildesheim and a Bachelor in Mechatronics Engineering from Universidad Militar Nueva Granada .

Q: Does Nicolas have any certificates?

Nicolas has 8 certificates . Among them, these include: AWS Cloud Solutions Architect Professional , AWS Fundamentals Specialization , and Building Deep Learning Models With TensorFlow .

Recommended expert

Hildesheim, Germany

Check rate

Experience

Oct 2024 - Apr 2025

7 months

Data Analyst & Digital Transformation Consultant

Management Solutions

Built a Looker-based analytics application with Python preprocessing and AppScript write-back to support client outreach for 50 bankers (scaling to 200).
Cut manual call-logging time from ~5 minutes to ~1 minute, improving operational efficiency and ensuring audit traceability.
Delivered dashboards used daily by bankers and weekly by managers to prioritise clients, analyse rejection drivers, and evaluate performance.
Worked in Agile cycles with stakeholders to iterate data requirements and prepare the platform for rollout to 200+ users.

Feb 2024 - Jul 2024

6 months

Colombia

Data Transformation Intern

Central Bank of Colombia

Digitised manual tracking in a banknote production plant using PowerApps and PowerAutomate with SQL and Python preprocessing.
Reduced registration time by ~30% and enabled real-time operational dashboards in Power BI across multiple sub-process lines.
Supported staged rollout with both paper and digital traceability to preserve compliance during adoption.
Collaborated in Agile reviews to refine user workflows and extend the solution to additional production sub-processes.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Banking and Finance and Government and Administration.

Banking and Finance

Government and Administration

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Business Intelligence, Information Technology, Operations, and Production.

Business Intelligence

Information Technology

Operations

Production

Summary

Data Analyst with experience in consulting and financial environments, designing data solutions used in production by business stakeholders.

I work with Python, SQL, Power BI, and AWS to build ELT processes and deliver analytics that support decision-making at scale.

Previously contributed to digital transformation projects in the Central Bank and a consulting firm.

Seeking roles where I can create value through data-driven execution and scalable analytics.

Skills

Programming & Querying — Python, Sql, R
Analytics & Bi — Power Bi, Tableau, Looker Studio, Data Visualization
Data Engineering Foundations — Elt Pipelines, Data Cleaning, Data Governance
Aws & Cloud — S3, Glue, Athena, Lambda, Kinesis, Ec2, Redshift, Iam
Automation & Tools — Git, Docker, Powerapps, Powerautomate, Devops (Scrum)
Machine Learning — Scikit-Learn, Tensorflow, Pytorch

Languages

Spanish

Native

English

Intermediate

Education

Apr 2025 - Present

University of Hildesheim

M.Sc. in Data Analytics · Data Analytics · Germany

Jun 2018 - Jun 2024

Universidad Militar Nueva Granada

B.Sc. in Mechatronics Engineering · Mechatronics Engineering · Colombia · Final GPA: 4.02/5.00

Certifications & licenses

AWS Cloud Solutions Architect Professional

AWS

AWS Fundamentals Specialization

AWS

Building Deep Learning Models With TensorFlow

IBM

Deep Learning & Neural Networks With Keras

IBM

Deep Neural Networks With PyTorch

IBM

Google Data Analytics Professional Certificate

Google

Introduction To DevOps

IBM

Machine Learning With Python

IBM

Statistics

Experience

Total positions 2

Experience in Banking and Finance 0.5 y

Avg length 6 m

Longest experience 6 m

Global Experience

Countries worked in 1 (Colombia)

Primary country Colombia

Expertise

Recent roles Data Analyst & Digital Transformation Consultant, Data Transformation Intern

Main industries Banking and Finance, Government and Administration

Main business areas Business Intelligence, Information Technology, Operations

Qualifications

Highest degree Master

Certifications earned 8

Profile

Created

October 2025

Last Update

October 2025

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Frequently asked questions

Have questions? Find more information here.

Nicolas is based in Hildesheim, Germany.

Nicolas speaks the following languages: Spanish (Native), English (Intermediate).

Nicolas has at least 1 year of experience. During this time, Nicolas has worked in at least 2 different roles and for 2 different companies. The average length of individual experience is 1 year and 6 months. Note that Nicolas may not have shared all experience and actually has more experience.

Based on recent experience, Nicolas would be well-suited for roles such as: Data Analyst & Digital Transformation Consultant, Data Transformation Intern.

Nicolas's most recent position is Data Analyst & Digital Transformation Consultant at Management Solutions.

In recent years, Nicolas has worked for Management Solutions and Central Bank of Colombia.

Nicolas is most experienced in industries like Banking and Finance and Government and Administration.

Nicolas is most experienced in business areas like Business Intelligence, Information Technology, and Operations. Nicolas also has some experience in Production.

Nicolas holds a Master in Data Analytics from University of Hildesheim and a Bachelor in Mechatronics Engineering from Universidad Militar Nueva Granada.

Nicolas has 8 certificates. Among them, these include: AWS Cloud Solutions Architect Professional, AWS Fundamentals Specialization, and Building Deep Learning Models With TensorFlow.

Nicolas is immediately available full-time for suitable projects.

Nicolas's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

To hire Nicolas, click the Meet button on the profile to request a meeting and discuss your project needs.

Salary / Daily Rate Distribution

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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.

Average rates for similar positions

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Daily rate avg. 958 €

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1000

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Median rate 820 €

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.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.