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Top 10 Data Scientist Skills to Develop to Get Yourself Hired

  • March 30, 2021
  • admin

In my previous story Data Scientist — 12 Steps From Beginner to Pro I described how to master a profession from scratch. In this article, I will focus on the key skills required to become a Data Scientist.

? Hard Skills ?

1. Mathematical base

Knowledge of machine learning techniques is an integral part of the Data Scientist job. Working with machine learning algorithms requires an understanding of the basics of calculus (for example, partial differential equations ), linear algebra, statistics (including Bayesian theory), and probability theory. Knowledge of statistics helps the Data Scientist to critically assess the significance of data. The mathematical base is also important in developing new solutions, optimizing and adjusting the methods of existing analytical models.


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Online courses in the following areas of mathematics with high student ratings:

Statistics Fundamentals with Python
Data Scientist with Python
Foundations of Probability in Python
Linear Algebra for Data Science in R
Machine Learning Fundamentals with Python

 

2. Programming

Collecting, cleaning, processing, and organizing data are also important skills of a Data Scientist. For these tasks and the implementation of the machine learning models themselves, the programming languages ​​Python and R are used. How to get started with Python, I discussed in the article “I Want to Learn How to Program in Python. Where to Begin?”.

Python courses:

Python Programming

Machine Learning Scientist with Python

Deep Learning in Python

Data Scientist with Python

Google’s Python Class

R courses:

Introduction to R

Data Scientist with R

Machine Learning Scientist with R

 

3. Working with databases

Most Data Scientist tasks require programming skills using the SQL query language. Despite the fact that NoSQL and Hadoop are also an important part of Data Science, SQL databases are still the main way of storing data. The Data Scientist must be able to produce complex queries in SQL.

Call me crazy, but I want to teach SQL to every data professional of any kind. I’m talking about people from HR, IT, sales, marketing, finance, vendors, and so on. If your goal is to make the most of your data-driven work, the Excel + SQL combination allows you to do amazing things. If your goal is to move into analytics (for example, as a business analyst), you definitely need SQL skills […] Why not start learning SQL this weekend?
*David Langer , Vice President of Schedulicity Analytics*

Related courses I found to be essential for Data Science specialist:

Read More  How AI Can Help Choose Your Next Career And Stay Ahead Of Automation

Fundamentals of Structured Query Language (SQL)

SQL for Data Science

 

4. Data preprocessing

Data Scientist also prepares data for analysis. Often data in business projects is not structured (videos, images, tweets) and not ready for analysis. It is imperative to understand and know how to prepare the database to obtain the desired results without losing information. During the Exploratory Data Analysis (EDA) phase, it becomes clear what data problems need to be addressed and how the database needs to be transformed to build analytical models.

Data Science Methodology. Data Preparation

Exploratory Data Analysis

 

5. Algorithms

To work on creating machine learning projects, you will need knowledge of classic machine learning algorithms such as linear and logistic regression, decision tree, support vector machine. The following courses will help you understand the intricacies of machine learning algorithms:

Algorithms: theory and practice. Methods

Machine Learning Algorithms: Supervised Learning Tip to Tail (eng.)

6. Skills specific to the selected field of analysis

After gaining basic knowledge, you will need specific skills for your chosen field of work. For example, deep learning is a class of machine learning algorithms based on artificial neural networks. These techniques are commonly used to create more complex applications such as object recognition and generation algorithms, image processing, and computer vision. So it is a good idea to be aware of new state-of-the-art algorithms and solutions in different areas of both machine and deep learning.

Some useful resources here are:

▶ Deep Learning Digest
*A weekly digest of the new state-of-the-art (SOTA) Deep Learning approaches and solutions*medium.com

Read More  A Human-Machine Collaboration To Defend Against Cyberattacks

▶ AI In Plain English
*Where Artificial Intelligence, Machine Learning, Data Science and Big Data get together.*medium.com

 

? Soft Skills ?

7. Ability to convey your idea

The Data Scientist must be able to communicate the message to a wide audience. This is especially important in the business area, where project customers may not have technical skills and terminology. Presentation of the results will require the skills of presenting information, the ability to convey the idea in simple language. Participate in Data Science conferences and online meetups. This is an opportunity not only to improve communication skills and small-talk with colleagues but also to get feedback.

Courses on Principles of a Successful Presentation:

Data Analysis and Presentation Skills: the PwC Approach Specialization;

Communicating Business Analytics Results — course by University of Colorado;

A Data Scientist’s Guide to Communicating Results is a guide to mastering effective presentation skills.

 

8. Teamwork

The Data Scientist profession involves teamwork on projects. This requires communication skills and a clear vision of their own role in the team. The successful outcome of a collective project directly depends on the effective interaction of the participants. The ability to hear a different opinion and make a joint decision is also important for team participation in Data Science Kaggle competitions.

Data Science is a team sport, and those who say “hitters are the best!” Are likely to face rebellion from the rest of the team. Every team member is valuable! If everyone plays their part well, then the business will continue to derive value from data.
*Ku Ping-Shung , Co-Founder / Director of Data Science Rex Workshop*

Successful teamwork comes with experience, and to master the intricacies, check out the following resources:

The 17 Indisputable Laws of Teamwork by John Maxwell — my personal handbook, highly recommend taking a look;

Read More  PyCon 2019 | Introduction to Data Science with Python

Peopleware: Productive Projects and Teams by Tom DeMarco and Timothy Lister — one of the favorite books of mine and team leads I worked with

Working in Teams: A Practical Guide — a course on the intricacies of teamwork and conflict resolution;

 

9. Ability to see the commercial side of the issue

A key Data Scientist skill for working in a business environment is the ability to find cost-effective solutions with minimal resource costs. Companies that use Data Science for profit, need for specialists who understand how to implement business ideas with data.

As organizations begin to fully capitalize on internal information assets and explore the integration of hundreds of third-party data sources, the Data Scientist’s role will continue to grow.
*Greg Boyd , director of the consulting firm Protiviti*

About the features of Data Science for business applications:

Data Science for Business — an interactive course from DataCamp;
A Guide to becoming Business-Oriented Data Scientist is a guide to the intricacies of Data Science in business applications.

 

10. Critical thinking

The skill of critical thinking helps to find approaches and solutions to problems that others do not see. Data Scientist critical thinking is about seeing all sides of a problem, considering data sources, and showing curiosity.

The Data Scientist must understand the business problem, be able to model and focus on what matters to solve it, not what is outsider and can be ignored. This skill, more than anything else, determines the success of the Data Scientist.

Anand Rao, Head of Global Artificial Intelligence and Innovation in Data and Analytics, PwC

 

Outcome

If you are looking to build a career as a Data Scientist, get started now. This area is constantly expanding and needs new specialists. To master the essential Data Scientist skills from scratch, enroll in the free online Data Science courses mentioned here, and become a professional ✨Data Scientist✨.

This article is republished from hackernoon.com


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