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  • Writer's pictureAnantaya Pornwichianwong

How to Become a Data Scientist: Your Step-by-Step Guide

Being a data scientist might be a dream job for individuals who are passionate about technology, enjoy uncovering insights from data, and aspire to build cutting-edge machine learning models that can act as an artificial brain to analyze and extract value from data.

In this article, Sertis aims to guide you through the steps necessary to become a data scientist. Let's explore where we should begin. We hope you find this article helpful.

What is the scope of a data scientist's work?

Data scientists hold one of the most sought-after roles in the field of data-related jobs. They leverage their expertise in mathematics, statistics, machine learning, and computer science to analyze, interpret, and harness data, thereby generating value for businesses.

The role of a data scientist involves utilizing tools such as statistical methods, data analytics software, and machine learning models to identify patterns, trends, and correlations within data. These insights enable them to make predictions about future outcomes, which clients or organizations can then use to inform decisions, formulate strategies, or optimize operational processes.

Additionally, data scientists often find themselves tasked with creating dashboards and reports, using data visualizations like graphs, charts, and other visual elements to convey their findings in a clear and practical manner.

Benefits of being a data scientist

  1. High demand and growth: A data scientist is among the most in-demand and rapidly growing professions. Statistics project a 36% increase in the demand for data scientists from 2021 to 2031.

  2. Lucrative earnings: With the increasing value of data in today's world, data scientists enjoy high earning potential. This field offers continuously rising income opportunities.

  3. Diverse job opportunities: Data scientists are sought after in various industries, including finance, marketing, and healthcare. This diversity provides them with a wide range of career choices, allowing them to specialize in their area of interest.

  4. Continuous learning: Working as a data scientist necessitates staying updated with new AI and data technologies and tools. This profession encourages ongoing learning and adaptation, enabling data scientists to stay relevant in an ever-evolving world.

Fundamental skills required to become a data scientist

  1. Programming languages such as Python and R, which are commonly used for data-related tasks like data manipulation and analysis.

  2. Data manipulation and analysis, involving organizing and transforming data to prepare it for analysis. This includes the ability to apply various techniques and tools for data analysis.

  3. Statistics and mathematics, encompassing areas like probability, hypothesis testing, regression analysis, linear algebra, and calculus.

  4. Machine learning, including familiarity with algorithm types such as classification, regression, clustering, and recommendation. Additionally, the ability to perform model evaluation and fine-tune hyperparameters.

Data visualization such as the ability to create easily understandable and visually appealing reports and dashboards using graphs, charts, and other visual elements.

Where to begin your journey toward becoming a data scientist

Once you have gained insight into what it means to be a data scientist and have a grasp of the essential skills required, the next step is to embark on your journey of learning and skill acquisition to become a professional in this field.

Education and skill acquisition

  • For individuals planning to pursue a bachelor's degree, choosing majors such as data science, economics, statistics, mathematics, or information technology is an excellent starting point for aspiring data scientists.

  • For individuals who hold a degree in a different field and seek to transition into the field of data science, online courses, especially those offering professional certificates, are among the best options. There is a wide array of courses available, and obtaining certifications can serve as a valuable ticket to securing a professional data scientist position.

Consider enrolling in a data science Bootcamp as another compelling choice for advancing your career in this field. These Bootcamps offer intensive training programs that typically span from a few weeks to several months.

For self-taught learning, we recommend following these steps:

  1. Begin by establishing a solid foundation through the acquisition of skills in data manipulation, cleaning, and preprocessing, as well as gaining knowledge in data structures and databases.

  2. Dive into machine learning, familiarizing yourself with various algorithms, including supervised and unsupervised learning, regression, and classification.

  3. Master the use of essential libraries and tools.

  4. Gain proficiency in creating data visualizations using tools like Tableau.

  5. Enhance your learning experience by actively engaging in projects and building a portfolio to bolster your job applications.

How to land your first step towards a professional career

To begin your journey toward a professional career as a data scientist, it's essential to acquire the necessary skills and gain practical experience. We recommend that you start by seeking an internship opportunity. This will provide you with invaluable real-world exposure, allowing you to apply your skills in a professional setting while experiencing the work environment with less pressure. Following your internship, consider transitioning to entry-level positions. These roles offer opportunities to accumulate more experience and advance your career.

We assure you that the path to your dream job is not out of reach if you remain committed to learning, practice diligently, and embrace challenges that help you grow better.

At Sertis, we offer the chance to work with top-tier clients spanning various industries. We are dedicated to fostering your growth within a community of tech enthusiasts who share your passion for data and AI.

If you want to be part of us in the world of data and AI, find open positions and opportunities at

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