I do build "AI products". That's more like well established machine learning algorithms though - word embeddings with a CNN for text clarification, for example. A lot of the job is setting up the service configuration to run on a kubernetes cluster, setting up alerts and responding to them. Then there's hearing back from stakeholders and tweaking things here and there in the code. Some would maybe call my role data engineering, and maybe that's what you should look for. I can say for myself that I wanted to work with "machine learning products" and I like it very much today. Answer from OperaRotas on reddit.com
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Coursera
coursera.org › coursera articles › data › data science › what is a data scientist? salary, duties + how to become one
What Is a Data Scientist? Salary, Duties + How to Become One | Coursera
A data scientist uses data to understand and explain the phenomena around them, and help organizations make better decisions.
Published   October 14, 2025
Views   423
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Northeastern University
graduate.northeastern.edu › home › what does a data scientist do?
What Does a Data Scientist Do? - Role & Responsibilities
January 10, 2025 - They design data modeling processes, create algorithms and predictive models to extract the data the business needs, and help analyze the data and share meaningful insights with peers. While each project is different, the process for gathering and analyzing data generally follows the path below:
Discussions

What do data scientists do anyway?
I do build "AI products". That's more like well established machine learning algorithms though - word embeddings with a CNN for text clarification, for example. A lot of the job is setting up the service configuration to run on a kubernetes cluster, setting up alerts and responding to them. Then there's hearing back from stakeholders and tweaking things here and there in the code. Some would maybe call my role data engineering, and maybe that's what you should look for. I can say for myself that I wanted to work with "machine learning products" and I like it very much today. More on reddit.com
🌐 r/datascience
92
139
September 24, 2023
What do data scientists actually do on their day-to-day?
Drinking coffee, checking reddit and stackoverflow, being in meetings. Joking aside, there is a flaw with your question, and that is that you assume that all data scientists do the same tasks, or have even moderately similar day-to-days. Put differently: you just asked the equivalent of "what do lawyers actually do in their day to day?" I imagine that your day to day looks very different if you're a litigator vs. an IP attorney, vs. an international tax law attorney vs. a forensic attorney vs. a constitutional law attorney. The same is true for data science, but with maybe even looser boundaries. To oversimplify the world, I would say there are going to be 4 types of tasks that data scientists do on some regular cadence: Research: you will have to read up on different ways to solve problems, or different tools/technologies that you can use, or how to tackle specific modeling issues, or how to call a function, etc. It can be as quick as a 5 minute read on a new package in Python, or as long as several weeks to do a comprehensive literature review on modeling methods. Code: once you somewhat know what you have to do, you have do it. Normally you will start by identifying the data that you will need, scoping it, examining it, cleaning it, looking at it some more, do some basic analysis on it, clean it some more, do more advanced analysis, clean it again, put it in a nice format for modeling, more cleaning, and then code up some type of model. Then you clean the data some more, tune your model, debug it, clean, tune, debug, debug debug debug debug debug debug, look at results, they don't make sense, debug debug debug debug debug debug, hey that looks like something that makes sense, oh wait, no, debug debug debug, ok, that looks reasonable. Communicate results: you now have results and you need to convince someone in the organization that those results are good, and that those results are useful. Discuss how to make data science work usable by the organization: once you are able to convince key people that your work is useful, you will need to work with other people across the organization to execute your work in a way that actually drives better outputs. Your usual suspects will be your enterprise development team, a project manager/management team, and the lead business unit responsible for the process that you are working on improving. More on reddit.com
🌐 r/datascience
62
183
April 12, 2019
Data scientists/analysts of Reddit, can you ELI5 your job?
  1. Do some math

  2. Make some graphs to explain to myself what 1. did

  3. Repeat steps 1-2 until it's worth showing to a co-worker

  4. Repeat steps 1-3 until it's worth showing to a customer

  5. Show to customer

  6. Repeat steps 1-5 until retirement

More on reddit.com
🌐 r/datascience
71
104
March 13, 2018
Would you take a "Data Science" job that involved no modeling?
Honestly I think it's a little professionally limiting to consider modelling as the core specialisation of a data scientist (and I say that as somebody with what many would consider a 'modelling heavy' role). As a scientist your job is to come to a better understanding of a phenomenon / process either in nature or in business. How you do that is up to your professional judgement, sometimes that involves modelling and sometimes it doesn't. A lot of DS culture revolves around modelling to (what seems to me) an unhealthy and frankly counterproductive extent. I mean, there are entire scientific fields that barely do any modelling at all. (You can probably tell that this is a bugbear of mine :) ). People really need to stop valuing themselves by the amount of time they spend modelling. I mean for crying out loud it's often not even the most interesting part of the job. More on reddit.com
🌐 r/datascience
84
119
September 7, 2022
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IBM
ibm.com › think › topics › data-science
What is Data Science? | IBM
November 17, 2025 - Data scientists are not necessarily directly responsible for all the processes involved in the data science lifecycle. For example, data pipelines are typically handled by data engineers, but the data scientist may make recommendations about what sort of data is useful or required.
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Indeed
indeed.com › career-advice › finding-a-job › types-of-data-science-jobs
11 Types of Data Science Jobs (With Responsibilities) | Indeed.com
Data science is the process of gathering and analyzing data to better make decisions and understand situations. Data scientists can specialize in many areas of data science, from business intelligence to statistical analysis.
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Simplilearn
simplilearn.com › home › resources › data science & business analytics › data scientist job description: role, responsibilities, and more
Data Scientist Job Description: Role, Responsibilities, and More
March 9, 2026 - Learn data scientist job description in detail. Know what is a data scientist, the roles and responsibilities of a data scientist, its career path, and more.
Address   5851 Legacy Circle, 6th Floor, Plano, TX 75024 United States
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Reddit
reddit.com › r/datascience › what do data scientists actually do on their day-to-day?
r/datascience on Reddit: What do data scientists actually do on their day-to-day?
April 12, 2019 -

I know they code and use statistical models on huge amounts of data to come to conclusions or train the models even more but what do they ACTUALLY do? What do they spend most of their time doing? What do they rarely do?

I'm thinking of getting a master's at DS but I'm overwhelmed by the amount of tasks "data science" includes and I'm trying to figure out what the day-to-day of a data scientist looks like and how would that interest me.

Top answer
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Drinking coffee, checking reddit and stackoverflow, being in meetings. Joking aside, there is a flaw with your question, and that is that you assume that all data scientists do the same tasks, or have even moderately similar day-to-days. Put differently: you just asked the equivalent of "what do lawyers actually do in their day to day?" I imagine that your day to day looks very different if you're a litigator vs. an IP attorney, vs. an international tax law attorney vs. a forensic attorney vs. a constitutional law attorney. The same is true for data science, but with maybe even looser boundaries. To oversimplify the world, I would say there are going to be 4 types of tasks that data scientists do on some regular cadence: Research: you will have to read up on different ways to solve problems, or different tools/technologies that you can use, or how to tackle specific modeling issues, or how to call a function, etc. It can be as quick as a 5 minute read on a new package in Python, or as long as several weeks to do a comprehensive literature review on modeling methods. Code: once you somewhat know what you have to do, you have do it. Normally you will start by identifying the data that you will need, scoping it, examining it, cleaning it, looking at it some more, do some basic analysis on it, clean it some more, do more advanced analysis, clean it again, put it in a nice format for modeling, more cleaning, and then code up some type of model. Then you clean the data some more, tune your model, debug it, clean, tune, debug, debug debug debug debug debug debug, look at results, they don't make sense, debug debug debug debug debug debug, hey that looks like something that makes sense, oh wait, no, debug debug debug, ok, that looks reasonable. Communicate results: you now have results and you need to convince someone in the organization that those results are good, and that those results are useful. Discuss how to make data science work usable by the organization: once you are able to convince key people that your work is useful, you will need to work with other people across the organization to execute your work in a way that actually drives better outputs. Your usual suspects will be your enterprise development team, a project manager/management team, and the lead business unit responsible for the process that you are working on improving.
2 of 5
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Besides modeling, there’s a lot of cleaning, merging, training, parsing, visualization and other prep work for big datasets. Then there’s a lot of admin work, meetings and stuff really eat into my time at work.
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UC Riverside
engineeringonline.ucr.edu › blog › career-spotlight-data-scientist
Data Scientist: Salary, Skills and Job Description - UC Riverside
But these skills are central to many data science jobs, in which scientists are tasked with creating custom software implementations and statistical models for their organizations – especially ones that are not “data companies” per se and are building their analytics infrastructure for the first time.
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iSchool
ischool.syracuse.edu › home › articles
What Is a Data Scientist? Role, Skills & Career Guide
October 30, 2025 - Data science combines programming, statistics, domain expertise, and problem-solving across many fields. Job growth for data scientists is strong, with a projected 36% increase this decade.
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TechTarget
techtarget.com › searchenterpriseai › definition › data-scientist
What is a Data Scientist? What Do They Do?
The first step in data science applications is to collect and prepare the data to be analyzed. This involves gathering, cleansing, organizing, transforming and validating data sets.
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Wikipedia
en.wikipedia.org › wiki › Data_science
Data science - Wikipedia
4 days ago - As schools try to prepare students for jobs that use data, these practices become more common. The professional title of "data scientist" has been attributed to DJ Patil and Jeff Hammerbacher in 2008. Though it was used by the National Science Board in their 2005 report "Long-Lived Digital Data Collections: Enabling Research and Education in the 21st Century", it referred broadly to any key role in managing a digital data collection. In data science, data analysis is the process of inspecting, cleaning, transforming, and modelling data to discover useful information, draw conclusions, and support decision-making.
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Built In
builtin.com › data-science › data-science-jobs
12 Data Science Job Titles — Which Role Is Right for You?
There are several types of data science jobs. | Video: Luke Barousse · As a data scientist, you’ll deal with all aspects of a project from knowing what’s important to the business, to data collection and analysis and finally to data visualization and presentations. A data scientist is a jack of all trades.
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Harvard SEAS
seas.harvard.edu › news › what-can-i-do-degree-data-science-career-paths-skills
What Can I Do With a Degree in Data Science? Career Paths & Skills
May 14, 2025 - At its core, data science is an interdisciplinary field that combines: ... Organizations are increasingly depending on data-driven insights to help with decision-making. This dependency has positioned data science as one of the most in-demand career paths. More specifically, roughly 20,800 data scientist job ...
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Société Générale
careers.societegenerale.com › en › tips-candidates › what-does-data-scientist-do
What is a Data Scientist? Roles & Skills (Job Description)
Learn everything you need to know about this promising job! Specialised in data science, a Data Scientist manages and analyses the data collected by a company for customer prospection purposes.
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Caltech
pg-p.ctme.caltech.edu › blog › data-science › data-scientist-job-description-roles-responsibilities
A Data Scientist Job Description: The Roles and ...
Simplilearn is the popular online Bootcamp & online courses learning platform that offers the industry's best PGPs, Master's, and Live Training. Start upskilling!
Address   5851 Legacy Circle, 6th Floor, Plano, TX 75024 United States
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GeeksforGeeks
geeksforgeeks.org › data science › data-science-job-roles
Data Science Job Roles - GeeksforGeeks
3 weeks ago - A Data Scientist is a professional who analyses large datasets to extract insights, build predictive models and support data-driven decision-making within organisations. Responsibilities: Analyze complex data, apply statistical and machine learning ...
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365 Data Science
365datascience.com › blog › career advice › the types of data science roles explained
8 Key Data Science Roles Explained – 365 Data Science
December 3, 2024 - A significant focus of such data science roles is data availability—determining whether to collect data internally or find ways to acquire it externally. Ultimately, product managers strategize the most effective ways to execute the production process. We hope this helps you navigate the multifaceted world of data science. You can choose between a variety of data science roles; find your niche and start preparing for your dream job.
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Workable
resources.workable.com › home › data scientist job description
Data Scientist Job Description [+2024 TEMPLATE]
May 22, 2023 - A Data Scientist is a proficient specialist who applies mathematical, problem-solving, and coding skills to manage big data, extracting valuable insights. They design tailor-made solutions from this data, aiding organizations in achieving their ...
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Coursera
coursera.org › coursera articles › data › data science › what is data science? definition, examples, jobs, and more
What Is Data Science? Definition, Examples, Jobs, and More | Coursera
Data science combines statistical tools, analytical methods, machine learning algorithms, artificial intelligence, and domain expertise to gain insights into your data. You can use this to inform decision-making and next steps.
Published   October 15, 2025
Views   423