About

Howdy! Thanks for visiting my page. I'm Moorissa, but more often go by Sasa. I was born and raised in Malang, a small city in Indonesia known for its apples and active volcanoes hikes. As adventurous as my hometown made me to be, I've started living on my own when I was 13. I have since traveled to more than twenty countries worldwide (though New York City and Interlaken are still my favorite place to date).

I moved to the United States as a Shannon and Wilson scholar six years ago. Three and a half years later, I graduated from Georgia Tech and subsequently worked as a data analyst for the next two years until my arrival at Columbia. Loving my first full-time job, I decided to pursue data for my long-term career.

My expertise and interests include machine learning, predictive modeling, data visualizations, business intelligence, and cross-functional teamwork. I also get really excited when it comes to data for good. One of my favorite highlights this past fall was winning the 2016 Impact Hackathon by Columbia Business School.

When I'm not playing with data, I enjoy learning new things, spending quality time with loved ones, and constantly thinking about ways to change the world.

Contact Details

Moorissa Tjokro
155 Claremont Ave
New York, NY 10027 US

moorissa.tjokro@columbia.edu

Education

Columbia University

M.S. in Data Science Exp. Dec '17

GPA: 3.7 / 4.0
Coursework: Algorithms, Machine Learning, Applied Machine Learning, Computer Systems, Exploratory Data Analysis, Data Visualizations, Bayesian Networks, Tech Entrepreneurship.

Georgia Institute of Technology

B.S. in Industrial Engineering, c. Statistics and Quality May '14

GPA: 3.8 / 4.0 (Summa Cum Laude)
Relevant Coursework: Probability Theory, Statistical Inference and Modeling, Database Systems Design and Manipulation, Regression and Forecasting, Quality Control, Optimization, Reliability Engineering (graduate level), Stochastic and Queueing Theory.

Work

Target Marketeam

Data Analyst Jul '14 - Jun '16

 

Managed data warehouses, built statistical models, developed interactive decision support tools. Selected as lead analyst for three accounts in < 2 years. Collaborated closely with Senior VP of Analytics and Head of Analytics in integrating strategy execution, methodologies, risk and analytics.

Heidelberg USA, Inc.

Logistics and Modeling Engineer Oct '13 - May '14

 

Developed a user interface for inventory optimizations, yielding an annual savings of $1.02M and 30% increase in the profit margin of the consumables business. Performed simulations, time series analysis, forecasting, and stochastic mixed integer programming to optimize distribution channels.

United Nations World Food Programme

Research Assistant Aug '13 - May '14

   

Constructed a multivariate hub model for Specialized Nutritious Foods with Dr. Nazzal and Spatial Risk Calendar (SPARC) team at WFP. Resulted in 30% decrease in malnutrition rates + commodity shortages across sub-Saharan regions, and model adoption by the Zambian Ministry of Health.

Georgia Institute of Technology

Computer Science & Statistics Teaching Assistant Dec '12 - Dec '13

   

Led weekly recitations, grade exams, and tutored students for Data Manipulation and Database Systems course (~250 students) and Applied Statistics course (~400 students).

Skills

My strengths range from data-driven research and quantitative analysis to optimization modeling and algorithmic programming. Here are some of my most-used coding skills.

  • Python, JavaScript, SQL, HTML5, CSS3, D3, JQuery, SVG
  • R
  • SAS
  • JMP
  • GIS, ArcGIS

...

Fun Fact

Almost double-majoring with fine arts for my undergrad, I have definitely thought of getting some certification in painting one day!

...

  • It's the possibility of having a dream come true that makes life interesting.

    Paulo Coelho
  • If I had asked people what they wanted, they would've said faster horses.

    Henry Ford
  • We make a living by what we get. We make a life by what we give.

    Winston Churchill

Get In Touch

Got any questions? Contact me below!
Don't worry, I love coffee chats too.

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