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8 Essential Tips for People starting a Career in Data Science


Learning data science can be intimidating. Specially so, when you are just starting your journey. Which tool to learn – R or Python? What techniques to focus on? How much statistics to learn? Do I need to learn to code? These are some of the many questions you need to answer as part of your journey.

That is why I thought that I would create this guide, which could help people starting in Analytics or Data Science. The idea was to create a simple, not very long guide which can set your path to learn data science. This guide would set a framework which can help you learn data science through this difficult and intimidating period.

Just follow through these tips, and enroll in the below courses to get a head start in your data science journey!

So let’s get started!


1. Choose the right role

There are a lot of varied roles in data science industry. A data visualization expert, a machine learning expert, a data scientist, data engineer etc are a few of the many roles that you could go into. Depending on your background and your work experience, getting into one role would be easier than another role. For example, if you a software developer, it would not be difficult for you to shift into data engineering. So, until and unless you are clear about what you want to become, you will stay confused about the path to take and skills to hone.

What to do, if you are not clear about the differences or you are not sure what should you become? I few things which I would suggest are:

  • Talk to people in industry to figure out what each of the roles entail
  • Take mentorship from people – request them for a small amount of time and ask relevant questions. I’m sure no one would refuse to help a person in need!
  • Figure out what you want and what you are good at and choose the role that suits your field of study.

Here is a descriptive comparison done by Analytics Vidhya a few months back on what is it like being a Data Scientist vs Data Engineer vs Statistician. I’m sure it will help you reach your decision.

A point to keep in mind when choosing a role: don’t just hastily jump on to a role. You should first understand clearly what the field requires and prepare for it.


2. Take up a Course and Complete it

Now that you have decided on a role, the next logical thing for you is to put in dedicated effort to understand the role. This means not just going through the requirements of the role. The demand for data scientists is big so thousands of courses and studies are out there to hold your hand, you can learn whatever you want to. Finding material to learn from isn’t a hard call but learning it may become if you don’t put efforts.

What you can do is take up a MOOC which is freely available, or join an accreditation program which should take you through all the twists and turns the role entails. The choice of free vs paid is not the issue, the main objective should be whether the course clears your basics and brings you to a suitable level, from which you can push on further.

When you take up a course, go through it actively. Follow the coursework, assignments and all the discussions happening around the course. For example, if you want to be a machine learning engineer, you can take up Machine learning by Andrew Ng. Now you have to diligently follow all the course material provided in the course. This also means the assignments in the course, which are as important as going through the videos. Only doing a course end to end will give you a clearer picture of the field.


3. Choose a Tool / Language and stick to it

As I mentioned before, it is important for you to get an end-to-end experience of whichever topic you pursue. A difficult question which one faces in getting hands-on is which language/tool should you choose?

This would probably be the most asked question by beginners. The most straight-forward answer would be to choose any of the mainstream tool/languages there is and start your data science journey. After all, tools are just means for implementation; but understanding the concept is more important.

Still the question remains, which would be a better option to start with? There are various guides / discussions on the internet which address this particular query. The gist is that start with the simplest of language or the one with which you are most familiar with. if you are not as well versed with coding, you should prefer GUI based tools for now. Then as you get a grasp on the concepts, you can get your hands on with the coding part.

You can learn Python for Data Science here.


4. Join a peer group

Now that you know that which role you want to opt for and are getting prepared for it, the next important thing for you to do would be to join a peer group. Why is this important? This is because a peer group keeps you motivated. Taking up a new field may seem a bit daunting when you do it alone, but when you have friends who are alongside you, the task seems a bit easier.

The most preferable way to be in a peer group is to have a group of people you can physically interact with.  Otherwise you can either have a bunch of people over the internet who share similar goals, such as joining a Massive online course and interacting with the batch mates.

Even if you don’t have this kind of peer group, you can still have a meaningful technical discussion over the internet. There are online forums which give you this kind of environment. I will list a few of them:

  1. Analytics Vidhya
  2. StackExchange
  3. Reddit


5. Focus on practical applications and not just theory

While undergoing courses and training, you should focus on the practical applications of things you are learning. This would help you not only understand the concept but also give you a deeper sense on how it would be applied in reality.

A few tips you should do when following a course:

  • Make sure you do all the exercises and assignments to understand the applications.
  • Work on a few open data sets and apply your learning. Even if you don’t understand the math behind a technique initially, understand the assumptions, what it does and how to interpret the results. You can always develop a deeper understanding at a later stage.
  • Take a look at the solutions by people who have worked in the field. They would be able to pinpoint you with the right approach faster.

Create your first Time Series Forecast using Python here.


6. Follow the right resources

To never stop learning, you have to engulf each and every source of knowledge you can find. The most useful source of this information is blogs run by most influential Data Scientists. These Data Scientists are really active and update the followers on their findings and frequently post about the recent advancement in this field.

Read about data science every day and make it a habit to be updated with the recent happenings. But there may be many resources, influential data scientists to follow, and you have to be sure that you don’t follow the incorrect practices. So it is very important to follow the right resources.

Here is a list of Data Scientists that you can follow.


7. Work on your Communication skills

People don’t usually associate communication skills with rejection in data science roles. They expect that if they are technically profound, they will ace the interview. This is actually a myth. Ever been rejected within an interview, where the interviewer said thank you after listening to your introduction?

Try this activity once; make your friend with good communication skills hear your intro and ask for honest feedback. He will definitely show you the mirror!

Communication skills are even more important when you are working in the field. To share your ideas to a colleague or to prove your point in a meeting, you should know how to communicate efficiently.


8. Network, but don’t waste too much time on it!

Initially, your entire focus should be on learning. Doing too many things at initial stage will eventually bring you up to a point where you’ll give up.

Gradually, once you have got a hang of the field, you can go on to attend industry events and conferences, popular meetups in your area, participate in hackathons in your area – even if you know only a little. You never know who, when and where will help you out!

Actually, a meetup is very advantageous when it comes down to making your mark in the data science community. You get to meet people in your area who work actively in the field, which provides you networking opportunities along with establishing a relationship with them will in turn help you advance your career heavily. A networking contact might:

  • Give you inside information of what’s happening in your field of interest
  • help you to have mentorship support
  • Help you search for a Job, this would either be tips on job hunting through leads or possible employment opportunities directly.


End Notes

The demand of data science is huge and employers are investing significant time and money in Data Scientists. So taking the right steps will lead to an exponential growth. This guide provides tips that can get you started and help you to avoid some costly mistakes.

If you went through a similar experience in the past and want to share this with the community, do comments below!


Learn, engage, compete, and get hired!

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  • Arihant Jain says:

    Nice Article Faizan !! Keep Writing

  • Param says:

    Finding the right MOOC is also very important. Each one has a different style.
    I went through this journey and lost many days enrolling into theory based course.
    Later I jumped into another course, which was like marketing a specific product from a specific company.
    I then found another course which is good and continuing there. But this is surely not sufficient. A long way to go.
    I initially lost interest due to the first 2 courses I attended. But my interest in Analytics did not sleep. I continued my search and it is going on, though with some breaks in between due to work schedule. but I am motivated to complete.

  • Yogi says:

    Nice Write up Faizen! Kudos to the good work.

    In addition to the courses mentioned. We can also do following course in edx to get a good grip of basics of statistics using R.
    1) Foundation of Data Analysis (Part 1 & 2) by University of Texas.

    As you told there are many tools in Data Science market, we have to pick one tool and stick to it to keep our focus. otherwise, we lost!

    Thanks for the suggestions.

  • Naman says:

    I am in final year of computer science engineering and I want to pursue career in data science.
    Is it good to start with “data science course by Johns Hopkins ” through coursera?
    How do I learn practical knowledge?
    Pls guide me

  • Ravinder Singh Gandhi says:

    Param can you mention the MOOC which
    you found right for you.. I am also confused.

    • Param says:

      Hi Ravinder,
      I come from an SAP functional background. Zero coding experience. That is also be the reason I struggled in first 2 courses. Later I started to learn some basics through HTML and Javascript learning in W3 schools.
      I then found Kunal’s “Programming foundations with Python” in Udacity. This is a great course for those without Programming knowledge.
      Finally the MOOC I was referring (and found good for me) in my above comment was “Python for Data Science and Machine Learning Bootcamp” in Udemy.

  • Mrinal says:

    1.Is it a beeper job?
    2. What are the suitable roles for technical managers in this ecosystem?

    • Faizan Shaikh says:

      Hi Mrinal,

      I’m not sure what you mean by “beeper” job, but I’m sure technical expertise is needed to be better at data science

  • Pawan says:

    I have completed my graduation in business management, don’t have any technical background.
    Guide me to start my career in data science.

  • Some really good tips that can only be said by someone who has learned the same way. Thank you for listing them out together like this, will help many!

    Sanad 🙂

  • Jennifer Horne says:

    Great and practical advice for people looking into an exciting and rapidly growing field. Thanks for the article!

  • Catherine Shen says:

    I do enjoy learning on the MOOC classes you recommended! Thanks for sharing ! Nice Article!

  • Ramcharan says:

    Thank you Faizan, these are really good tips.

  • faizan fulara says:

    Well written and very informative…..Thanks Faizan

  • Peter says:

    1. Data visualization
    2. “path to data scientist” image
    3. Python, R, Spark, Tableau

    I like that you put having a peer group as number four. Thanks Faizan for the article!

  • Anurag Ujjainkar says:

    Hii Faizan I am a 8 year old mechanical engineer ,5 year old Sales Marketing Engineer & 27 in total age.
    I have born in Data Sciences recently ,like I cannot speak in this world language(on data sciences).
    Fortunately I can read & learn,the article you wrote makes me feel like I am listening/reading to a mid aged mentor,it gives wonderful insights.

    I intend to be an employable data scientist soon, taken up “Learning R text book by Richard Cotton”,started some free online tutorials.

    Your article is wonderful.Keep doing the good job.

    I would be happy if like minded people going cross functional would contact me,so we build a learning platform.

    I am present on LinkedIn with the name Anurag Ujjainkar.

  • Arunima Garg says:

    Hi Can you please suggest few courses which are free to get into data science career.I know java,sql and R prog.But please suggest a proper course where knowledge to use them practically fr data science is provided