Practical Data Science - Interview Preparation - Working backwards from End Product with Machine Learning

Van 54 € /h

Class teaches you how to apply your math and coding skills, and prepares you for the interviews with the companies ranging from start-ups to the big tech giants. It covers ML part: (i) working backwards from problem statement with Data Science eyes, (ii) choosing the best Machine Learning approach, (iii) drilling down in ML, and interview preparation part: (iv) preparing you to answer tech questions, (v) ML concepts questions, (vi) product questions, (vii) work principles questions.

Locatie

Online vanuit België

Over

I'm a Sr Data Scientist | Sr Product Manager with 9+ years of experience in Amazon, Generali, and PWC. I am passionate about building strategies, launching products, and democratizing AI knowledge.

Opleiding

Master of Science, Mathematics (Probability and Statistics) from University of Belgrade, GPA 9.75/10
Bachelor of Science, Mathematics (Probability and Statistics) from University of Belgrade, GPA 9.28/10

Leservaring

Amazon EU, Italy / Belgium
Sr Product Manager Expansions (July ’21 – present)
• Owner of the Selection and Vendor management strategy for Amazon expansion into a new geography, creating and
executing on a first-time-at-Amazon scalable and lean operating model for expansion
• Single-threaded leader of the Catalog Localization for 5 new countries launch across 3 continents
Amazon EU, Milan, Italy
Sr Data Scientist | Sr Product Manager (July ‘19 – June ‘21)
• Leading a team that uses Machine Learning to introduce step-change in Amazon EU Retail business by incubating
innovative ideas that improve customer experience and optimize the way business is managed.
• Projects: Automatic root cause detection using NLP on customer feedback (return rate reduction 24% using ML
classification and unsupervised insights extraction); Causal inference pipeline for Promotions propensity and
incrementality (>1000 business users, yearly savings 12%); Price erosion prediction along the product lifecycle
• Tech stack: Python (spacy/BERT, sklearn, Keras), AWS (Lambda, Amazon SageMaker, s3, QuickSight)
Generali Group, Milan, Italy
Sr Data Scientist ( March ‘16 – June ‘19)
• End to end Data Science projects: Business case setup, guidance on analytical process, product implementation
• Business areas: Process optimization and automation, Fraud, Claims management, Health insurance, Pricing
• Machine Learning algorithms: Deep Learning with Keras, Computer Vision, Natural Language Processing, OCR
• Tech stack: Python, Spark, R, Microsoft Azure, Spotfire, Tableau
Generali insurance Serbia, Belgrade, Serbia
Actuary (June ‘13 – February ‘16)
• Pricing and product development for property and casualty insurance, modeling of new tariffs for non-life insurance
• Pricing risk assessment, Reserving risk assessment, and technical reserves calculation
• Forecasts and business plans: best estimate of liabilities
PricewaterhouseCoopers, Belgrade, Serbia
Intern in Assurance (September ‘12 – March ‘13)
• Team member on audit engagements of financial statements: audit of business processes, design, and operation of
internal controls, performing substantive testing
• Assessment of loan loss provisions in the financial services industry

Leeftijd

Tieners (13-17 jaar oud)

Volwassenen (18-64 jaar oud)

Niveau van de leerling

Beginner

Gemiddeld

Gevorderden

Duur

60 minuten

De les wordt gegeven in

Engels

Italiaans

Servisch

Frans

Vaardigheden

Python

Computerwetenschappen

Product management

Beschikbaarheid typische week

(GMT -05:00)

New York

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Hanna

4.5

(2)

Dear student

I am a young, motivated, and enthusiastic mathematics, computer science, and study methods teacher.

Students may not always be able to follow along well in certain lessons because sometimes things go fast, and sometimes just need a little more time to understand certain things. Understanding the subject matter is very important. I therefore offer tailor-made extra lessons for every student! Every student is different and learns differently. Because of the teacher training that I have followed and the years of experience in giving tutoring, I know a lot of (online) tools with which students can store things efficiently and better in memory. The student will realize that learning in this way is also much more fun!

Courses in which I give extra lessons:
- Math
- Computer science (Excel, Word, Access, Programming ...)
- Study methods

Feel free to contact me if you have any questions. :)

Mahmood

4.5

(2)

Technology is advancing at a rapid pace, and we rely more and more on computers for everything from cooking to organizing our taxes. An understanding of computer basics is compulsory nowadays.

The goal of this course is to give you a solid foundation on basic IT and computer knowledge. Once you understood these basics, you will have a clear understanding on which to build your future knowledge of an skill with computers and the Internet.

COURSE OUTLINES:

KNOWING COMPUTER
- Introduction and objectives
- What is Computer?
- Components of Computer system
- Concept of Hardware and Software
- Concept of computing, data and information
- Applications of IECT
- Bringing computer to life
OPERATING COMPUTER USING GUI BASED OPERATING SYSTEM
- Introduction and objectives
- Basics of Operating System
- The User Interface
- Operating System Simple Setting
- File and Directory Management
UNDERSTANDING WORD PROCESSING
- Introduction and objectives
- Word processing Basics
- Opening and closing Documents
- Text Creation and manipulation
- Formatting the Text
- Table manipulation
USING SPREAD SHEET
- Introduction and objectives
- Elements of Electronic Spread sheet
- Manipulation of Cells
- Formulas and Function
INTRODUCTION TO INTERNET, WWW AND WEB BROWSERS
- Introduction and objectives
- Basic of Computer Networks
- Internet
- World Wide Web (WWW)
- Web Browsing Softwares
- Search Engines
- Understanding URL
- Surfing the web
COMMUNICATIONS AND COLLABORATION
- Introduction and objectives
- Basics of E-mail
- Using E-mails
- Document collaboration
- Instant Messaging and Collaboration
MAKING SMALL PRESENTATIONS
- Introduction and objectives
- Basics of Making small Presentations
- Creation of presentation
- Preparation of slides
- Presentation of slides
- Slide show
FINANCIAL LITERACY FOR BANKING SCHEME AND APPLICATIONS
- Introduction and objectives
- Why Savings are needed?
- Drawbacks of keeping cash at home
- Why Bank is needed?
- Banking products
- Banking Service Delivery Channels
- Various Schemes
- Bank on your mobile
- Insurance

Joris

4.5

(2)

Python is the fastest growing programming language. Master it and you can solve business and science problems!

If you are an absolute beginner, don't worry, I've got exercises that will help you get up to speed.

About me: I have worked 10 years in financial markets (bond trading and market data). Now I am working as a freelance Python trainer & developer.

Favourite Python packages / frameworks: Pandas, Numpy, Flask, Django, Beautifulsoup, PySpark & Pytest,

Robert

4.5

(2)

As a Franco-Belgian management teacher, I give Excel lessons with passion!
Whether remotely or face-to-face, I offer many examples and exercises to accompany you.
I travel without problem throughout the region of Brussels and its surroundings, for lessons of at least 2 hours. For France, courses are only given remotely.

Here are some key words that will be covered in my classes:
Scenario analysis, Year, Rounding, Today, Bdnb, Bdnbval, Bdsum, Search, Column, Copy/paste in values, Copy/paste with transposition, Consolidation, Date, Datedif, Determat, Dollar, Right, Righterg, Equiv, Esterror, Estna, Frequency, Filter (simple and advanced), Format of cells, Left, Large.Value, Printing of documents, Index, Indirect, Inversemat, Day, Weekday, Line, Matrix, Max, Maxa, Max.Si, Min , Mina, Mina.If, Formatting of cells and ranges, Month, Average, Average.If, Nb, Nb.If, Nbval, Naming of cells and ranges, No, Small.value, Product, Productmat, Protection of cells, Lookup (Lookup), Lookupv (VLookup), Lookuph (HLookup), If (If), If.Not.Disp, If.Conditions, Iferror, Sum, Sumproduct, Sum.If, Sum.If.Set, Substitute , Pivot tables, Sorting, Cell locking

Do not hesitate to contact me to organize your lessons according to your needs and availability. Together, we will develop your Excel skills in an efficient and personalized way.

Kelly

4.5

(2)

Python is a Programming Language widely used with huge capabilities on building projects of many different kinds but the most important advantage is that it is easy to learn and it can be a good start for someone to embrace Computer Science and improve their logical thinking.

Mehdi

4.5

(2)

I am a certified communication scientist (WO, MSc.) who teaches computational data analysis methods in SPSS, Python, R and thesis supervision.

During the lessons we can cover the basics of computational methods or data analysis. I can also help you gain a better understanding of the data structure, design a questionnaire in QUALTRICS (or similar program), or collect data together with you. We can do this in the programs Python, R or SPSS. I am also an expert in supervising theses.

I give lessons of one hour as standard, but these can be longer if desired. If you are looking for guidance for a longer period, I can offer you a package where you get a discount on my hourly rate.

I have experience teaching computational data analysis and machine learning at university and college level. I myself have a research master's degree in communication sciences.

Stephen

4.5

(2)

I believe that anyone can learn to program. And with an average rating of 8.5 for my exam training at, among others, lyceo, I have experienced a lot of others doing the same.

Because of the programming minor that I did in addition to my Master's degree in Mathematics, I have seen where the friction is with many students and that often helped them on their way. I can do that because I taught myself to program next to my study Do you need help with a programming assignment, or are you not very good at the theory on your own? Then we start by looking at what you do know or understand, and where things are still unclear. Based on your understanding, we devise a plan of action for your assignment together.

We usually only have an hour together and that flies by. That is why I offer for the entire week (7 days) after our tutoring to help you online, via WhatsApp or Messages (iOS)

See you soon!

Přemysl

4.5

(2)

I can show you how to upload edit and export your video using Avid, Pinnacle or other video editor. I can teach you how to use wix online editor to create your own webpage, how to design the webpage, how to use all the options of the platform and chose best plan for your idea.

Alexandre

4.5

(2)

Embark on an immersive journey that will help you and clarify the material as we take a deep dive into of Java, Python, Object-Oriented Programming (OOP), Machine Learning, and Deep Learning, focusing on neural networks, Liquid State Machines (LSM), Genetic Algorithms (GA), and more.

Special rate applies for purely web/app development as a part-time full-stack developer/engineer.

Yoeri

4.5

(2)

I teach Python classes , both in English, French and Dutch. I am a trained teacher, have been tutoring for several years, and have years of professional experience as Analytics Consultant. My goal is to teach at your level, making you as independent as possible, as quickly as possible.
I can help both with solving concrete problems, and learning Python in general. While I have used many different libraries the past few years, I have specialised knowledge regarding data analysis, visualisation and data science (Numpy, Pandas, Scikitlearn, Seaborn, Scikitlearn ...)

Nadeesha

4.5

(2)

I specialize in teaching ICT, computer science, and programming to help students develop essential digital skills for today's tech-driven world. My lessons are designed to guide you through both foundational concepts and more advanced topics, depending on your current level. I teach you very easy methods to understand complex parts of programming, breaking down difficult concepts into simple, digestible steps. Whether you’re a complete beginner looking to understand basic computer operations or an advanced learner aiming to master coding, networking, or system administration, I tailor each lesson to your needs. You will work on real-world projects, and I will provide exercises to reinforce learning and track your progress. Let's build your technical expertise together!

Mohamed

4.5

(2)

Dive into the world of Python, one of the most powerful programming languages for Data Engineers and Data scientists. With hands-on projects, real-world examples, and engaging lessons, you'll not only learn the fundamentals of Python but also gain the confidence to tackle complex programming challenges.

Audrey

4.5

(2)

Gives private lessons on computer and smartphone use for beginners in Brussels (including Kraainem and Wezembeek).
Courses in French and English.

• At your home, at my home or online.
• Possibility to ask questions between classes via message.

*For whom?
• Beginners or people who didn't grow up with smartphones.
• Those who finally want to know how to use the basic functions of their computer or smartphone (Examples: sending emails, using Word, organizing files, installing programs, using an online calendar, searching the Internet, etc.).
• Solving small problems: mailbox not working, update to be performed, assistance in contacting a technical service and explaining the problem in technical language over the phone.

Available from 9am to 11pm every day at your home, mine or via webcam.

Why me ?
3rd year Bio-engineering Bachelor.
In the past, I taught my now 93-year-old grandmother how to use WhatsApp (which allowed her to make video calls to us during the lockdown period) and how to use other applications on her tablet. I taught my mother, born in the 1960s, how to use the basic functions of her PC. I also gave lessons to 2 other grandmothers in my neighborhood, particularly on how to use the STIB app. Very attentive to personalization, I simplify the material according to each need. I share tips, I provide motivation and organizational techniques on PC or smartphone. Passionate about sharing knowledge, I dissect digital tools to make them understandable.

Gergely

4.5

(2)

“AI is the future.” You’ve heard it before, but what does it actually mean? Facial recognition, recommendation systems, self-driving cars—it all starts with data, algorithms, and code. The best part? You can learn it too.

Whether you're a curious beginner or someone already dabbling with machine learning, I offer hands-on guidance through the AI jungle. Using libraries like Pandas, Scikit-learn, TensorFlow, and OpenCV, I’ve built projects ranging from eye-tracking systems to classification models. I know how to explain complex concepts in simple terms—and help you build real, working prototypes.

From your first regression model to deploying your neural network, I’ll be your guide. Whether you want to understand the math behind it or just want results, we’ll move at your pace. available remotely across Europe.

Wahagn

4.5

(2)

Hi! I’m Wahagn, a qualified international school teacher with 4+ years of teaching Computer Science and Computing to 8-18 year old students. I hold a BSc and MSc in Computer Science from Leiden University and have worked in international schools across Europe.

I teach fun, engaging programming classes for absolute beginners and give school support. Students learn logical thinking, problem solving, and creativity.