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Summary

Expertise

Project Highlights

Education

Agency

JL

English:

Upper Intermediate

Juan Esteban L.

vetted by Youteam

Vetted by YouTeam

Colombia

UTC -05:00

America/Bogota

English:

Upper Intermediate

Computer Engineer specialized in Business Intelligence (BI),with ample hands-on experience in unstructured data analytics (NLP& Machine Learning).

He is a Computer Engineer specialized in Business Intelligence (BI),with ample hands-on experience in unstructured data analytics (NLP& Machine Learning) from acquisition, transformation, modelingand disposition. Team leader who is a natural born problem solver, disciplined and loyal to reaching every goal, Currently holding an analyst position in Colombia’s leading bank, Bancolombia. During his nine years in Bancolombia he has been a "go to guy" for many areas and projects from software developer to product owner and data scientist in NLP field.

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Expertise

Years of commercial development experience

12 years of experience

Core technologies

Python 4 years
Machine Learning 3 years
pandas 3 years
NLP 3 years
Data Scientists 3 years
SQL 10 years

Other technologies

AWS
C#
COBOL
Django
ETL
Flask
Kubernetes
MySQL
OpenCV
PHP
PostgreSQL
Selenium
SQL Server
Git
HTML
PostScript
Scrapy
Scrum
Unit Testing
CorelDRAW
Docker
TensorFlow
AWS Lambda
Keras
Power BI

Project Highlights

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Data Scientist - NLP

Bancolombia

Apr `19 - Present

6 years

Bancolombia

Entity and events detection over Colombian web news sources searchingand scraping text to provide sentiment polarity helping to automate manualsearching processes.

Responsibilities & achievements

Enrichment of unstructured data from text sources to implement specific NLPtasks such as NER and sentiment analysis using machine learning modelingand cloud computing. Also leading model building for image processing aimingto denoise scanned images using classification and generation techniques toimprove the customer experience. · Improvement of image quality over scanned documents through a newprototyped platform starting with Colombian ID and customer financial results statements. It is a preprocessing task for OCR Engines looking forward toimprove data extraction accuracy.

AWS
OpenCV
Python
TensorFlow
Keras
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Data Engineer/ Analyst

Bancolombia

Nov `16 - Apr `19

2 years

Bancolombia

- First contributor for a new corporate web scraping service that aims spidersdeveloping decentralization. Collecting developments from analytics teamsand serving them for credit processes ensuring IT policies and developmentstandards. - Product owner focused on digital processes transformation. Ensuring datareuse and digital process automation.

Responsibilities & achievements

Liaising with stakeholders across the business and analytical teams, managingexpectations and presenting technical and non-technical audiences as firstcontributor in Bancolombia for some new corporative services such as unifiedweb scraping platform, liquid text database and Kofax self-configurationfrontend for business users. Introduced a research project to Colciencias (government agency responsiblefor the science, technology and innovation departments in Colombia) togain access to tax benefits by introducing and qualifying the project in theinnovation category.· Designed and developed various data models and dashboards in MS tools toshowcase details in scanned document fields.· Spearheaded the design and development of a new repository (liquid textdatabase) for the storing of extracted data directly from documents attached toprocesses from Bancolombia’s customers in it first release. Initiated and coordinated the development project of a parametric application(Agility) looking to simplify the incorporation of documenting processes in theKofax tool.

AWS
Kubernetes
Selenium
SQL
Git
Scrapy
Scrum
Unit Testing
Docker
AWS Lambda
Power BI
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Software Developer

Bancolombia

Dec `11 - Nov `16

5 years

Bancolombia

From solutions designing and conceptualization to productization of multiplesoftware projects that support the evolution of transactional channel systems of Bancolombia.

Responsibilities & achievements

· Executed and supported the evolution of transversal applications in thetransactional channels of the Bancolombia Group (SVP, Online Portal,ATMs/ABMs, Audio Recordings, among others). Facilitated the use of agilemethodologies such as SCRUM and actively participated as a developeranalyst in the evolution of solutions based on iSeries and WAS platforms(WebSphere Application Server).· Chaired the implementation of a multi-platform solution for the automatizationof Bancolombia’s account registrations through their transactional channelssuch as SVP, APP and audio response.· Headed and actively participated in a project ensuring with TLS from thecommunication channel between physical bank branches and the bank’s coretransactional servers.· Coordinated the conception and upgrades of the collection process byaccount balance query in ATMs/ABMs using the maximum amount oftransactions.

COBOL
WebSphere
RPG Development
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Back End Developer

PSL

Jul `11 - Dec `11

5 months

PSL

Software Maintenance of commercial publications.

Responsibilities & achievements

Software Maintenance of commercial publications platform for Publicar S.A.(Yellow Pages) in the Genesis projectS.

C#
SQL
SQL Server
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Full Stack Developer

NumRot

Apr `09 - Apr `11

2 years

NumRot

Designed and developed a brand new web billing pdf viewer complementaryto printed forms; also worked in graphic design and development for laserprinting.

Responsibilities & achievements

· Successfully generated a new company product called NumRot eSearch,which stores in an ECM Repository (Alfresco) over AWS-S3, and alsoshowcases in a web interface a copy of the NumRot transactional documents,which are those generated by the printers. Numrots are smart physicaldocuments. · Provided crucial support in the development of a customized web search appfor PDFs, generated in parallel form to the printing of customer invoices. · Proactively built a connection module with POS system ZonaVirtual S.A, acompany that provides a virtual selling platform. Established protocols for the development of documents for printing, whichwere invoice formats created for the Chamber of Commerce focused on themunicipalities of the state of Antioquia and Cundinamarca Department in Colombia.

MySQL
PHP
HTML
PostScript

Education

Higher education in Computer Science

Agency

agency #2877

50-100

GMT+13

Uruguay

Want to hire this engineer?

Check if Juan Esteban is available