SEBASTIAN

SEBASTIAN LANGER

DATA SCIENTIST & DIGITAL MARKETING SPECIALIST

ABOUT ME

I have a double profile as a Big Data Engineer/Data Scientist and Digital Marketing Specialist, also holding a solid track record in the software industry as a developer and technical leader.

I’m skilled in Data Analysis using Python, Numpy, Pandas, Sickit Learn for Hypothesis Testing, Linear, and Logistic Regression. For visualizations, I use Matplotlib, Seaborn, Plotly, Tableau, and Power BI.

With Machine Learning, I have experience using several supervised and unsupervised learning algorithms like Decision Trees, KNN, K-means, SVM, PCA, Neural Networks, among others.

Also, for Big Data engineering, I have experience with Scala, Spark, Hadoop, MySQL, Transact SQL, Postgre SQL, Teradata, and API development with Play Framework, among other technologies.

I find particular interest in Market Basket Analysis, Recommender Systems, Network Analysis, and Natural Language Processing for my focus on marketing problems.

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WHAT CAN I DO

Data Science

Preprocessing, Feature Engineering, Model Evaluation, Supervised, Unsupervised and Reinforcement Learning.

Data Analytics

Data manipulation, cleaning, and transformation, Hypothesis testing, Linear and Logistic Regressions, Reporting and Visualizations.

Digital Marketing

Database Marketing Techniques, Lead Generation, Inbound and Outbound Marketing. Specialization in Email Marketing, Conversion Funnels, and Content Marketing.

Software Development

More than 15 years of experience in Web and Database Development always with the last trends in programming languages, frameworks, and tools.


Testimonials

I had the pleasure of working with Sebastian during his time as a student at BrainStation. Sebastian demonstrated an impressive amount of drive and determination to dive into the fundamentals of Data Science, adapting to the complexities of a new discipline with an exceptional work ethic and willingness to learn.

He consistently approached new concepts with genuine enthusiasm and energy; qualities that make him naturally strong at collaboration. With his deep background expertise in digital marketing, Sebastian would be a valuable asset to any company looking for someone who can combine a data-driven mindset with real empathy.

Edward Prosser

Sebastian is a good Leader, has a great commitment and responsibility in the projects under his charge, has good management of the members of his work group and plans the projects correctly. Understands the diverse needs of the business, collaborates with users and with the company and with its predisposition offers improvements and optimizations in processes and in different systems.

Carlos Alberto Vivas

Sebastian is an excellent professional. I have worked with him on several projects, and he always has demonstrated commitment, professionalism, and a unique relationship with the de whole team. Sebastian has adapted to a lot of situations, and in all of them, he has given timely and adequate solutions.

Karina Giorno

Sebastian is a first class professional. He is excellent in both the technical and interpersonal aspects. Always attentive to be updated in the latest technological trends. He is a person who is continuously predisposed to collaborate with the team. His contributions to each project are always precious.

Luis Villagra

EXPERIENCE

Redbee Studios

Redbee Studios from 09/2019 to present

  • Developed ETL using Scala, Hadoop, Spark, PostgreSQL
  • Optimized model hyperparameters
  • Cleaned and analyzed Data to prototype ML models using Python with Jupyter Notebook
  • Developed API Rest using Play Framework with Scala
  • Developed web applications using React & Redux.
Marketing Data Analyst

Ministry of Production of República Argentina from 01/2018 to 03/2019

  • Built data models to store and process collected information from different public sectors to improve email marketing communications.
  • Designed and developed reports measuring the relationship between the companies of the whole country and the Ministry of Production.
  • Improved KPIs related to the engagement of the companies in the Ministry’s email marketing communications and enrollment in different vital programs
  • Orchestrated the team to develop and implement the processes of the area.
Technical Product Manager

Buffa Sistemas from 04/2015 to 12/2017

  • Drove the entire vision and delivery of new products and features to keep the business relevant and competitive.
Software Development Manager

Buffa Sistemas from 07/2010 to 04/2014

  • Managed successfully the technical resources for more than 80 projects. Led architectural decisions in the .NET platform and database-based solutions by studying existing technology architecture.
.Net Technical Leader

Buffa Sistemas from 03/2007 to 06/2010

  • Developed technical strategies for international client projects, wrote technical requirements, feasibilities, and estimates of time and costs. I directed to local and external software developers
Senior Software Developer

Buffa Sistemas from 06/2004 to 02/2007

  • Developed ASP.Net web applications and services for Microsoft Argentina, Anheuser-Busch, YPF, Tenaris.
  • Selected by Microsoft Argentina to replicate Visual Studio Team System/Team Foundation Server training to 120 companies
Senior Software Developer

Grupo Prominente from 06/2001 to 02/2004

  • Developed Microsoft ASP and MS SQL applications using DHTML, CSS, XML, XSL, XSLT, SOAP services and COM components written in VB 6.
Semi Senior Software Developer

SISEM Sistemas de Informacion from 09/1998 to 05/2001

  • Developed Microsoft ASP and SQL applications using DHTML, CSS, XML, XSL, XSLT.

 

 


EDUCATION

Universidad Antonio de Nebrija

Masted Degree in Big Data and Business Analytics - 02/2020 to 02/2022

BrainStation

Diploma, Data Science - 06/2019

Universitat Politècnica de Catalunya

Master Degree in Digital Marketing - 03/2019

Average 9.43/10

University of California, Irvine Division of Continuing Education

Diploma, Specialization in Digital Marketing - 09/2018

Universidad de Belgrano

Associate Degree in Marketing Diploma - 08/2017

 


SKILLS

Data Science/Big Data Stack

  • Python
  • Scala
  • Hadoop
  • Spark
  • SQL: MySQL/Postgre SQL/Transact SQL
  • Machine Learning: Supervised and Unsupervised Learning
  • Docker/Kubernetes

Reporting Tools

  • Tableau
  • Power BI

Software Development

  • JavaScript
  •  CSS
  •  HTML
  • React
  • Node
  • ASP.Net
  •  C#

Other

  • Git/GitHub
  • TFS

 


Contact MeDownload Resume

CONTACT

  • Phone (Canada)
    +1-(236)-986-8735
  • Phone (Argentina)
    +54-(911)-3296-0183
  • E-mail
    hello@sebastianl.ai
  • Address
    East Vancouver, Vancouver, Canada
  • Address
    San Telmo, Capital Federal, Argentina

 


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