News

Top 5 Key Skills A Good Data Scientist Should Have

November 16, 2018

Data scientist job roles are hugely in demand and are turning out to be a lucrative career option. However, candidates need to be adept in a wide array of skills from programming knowledge to be good in communication, and more. While the industry has varying metrics on what being a good data scientist is, here are the five key skills a good data scientist should have.

Analytical Mindset

One of the key requirements for a data scientist is to have an analytical mindset with a strong statistical background and good knowledge of data structures and machine learning algorithms. They need to be strong in Python or R and should be comfortable in handling large data sets.  Nearly 70% of a data scientist’s time is spent in data preparation – data cleaning and munging and preparing data such that machine learning algorithms can be applied on that data. So, it is important that they are comfortable with the 4 V’s of data – Volume, Velocity, Variety and Veracity.

Domain Knowledge

It is important for the data scientist to have sound domain knowledge. They need to understand the business problem and choose the appropriate data science model for the problem. They should be able to interpret the results of their models and iterate quickly to arrive at the final model. They need to have an eye for the detail. It also very important for them to have good communication skills as they need to explain their results in simple language that can be understood by a wider audience. They should be able to clearly document their approach so that it is easy for someone else to build on that work. They should be able to understand research work published in their area and apply it for their problems.

Problem Solving Skills

While it is important for a data scientist to keep themselves abreast on the latest tools and developments, it is mandatory for them to work on solving problems. A data scientist is like a doctor, the more problems they solve and more experience they have, they get better in their job. That is why companies value experience a lot more than the educational qualification. But it is important to have the basic educational qualification. A full-time course will be valued more than an executive course.

Statistical And Programming Skills

A data scientist is expected to have a good knowledge of statistics, mathematics and algorithms and good software engineering skills. They should start with a basic course on statistics and mathematics with a primary focus on probability, set theory, algebra, functions and graphs. Then they need to learn a programming language preferably python along with libraries such as pandas, numpy, scipy and matplotlib or R. They should then learn machine learning and if needed advanced topics in deep learning. There are a lot of free and paid resources to learn these topics.  There are free and paid beginner and advanced level courses in Coursera, Udacity and EdX. There are free short courses offered by Kaggle and Google’s AI team. They are a lot of free lectures on YouTube from universities like Stanford. Once they have completed these courses, they would need to apply their knowledge in solving practical problems. They can do this by participating in competitions hosted by sites such as Kaggle.

Solving Real-World Problems

If a student wants to choose data science as a career, they should start paying attention to subjects such as Statistics, Probability, Algebra, Set theory and Data Structures and Algorithms. If they are strong with the basic concepts, then they can use the technology tools to their advantage to build great models.

While a lot of theoretical knowledge can be gained by doing these courses, their learning would not be complete until it is applied to practical problems. Industry mentors can play a vital role in this aspect. They will also help in understanding the practical difficulties in applying their knowledge to real-world problems. This will also help them in building their domain knowledge that will help them to be a good data scientist.

You May also like...

Great Customer Offer – The Economic Times

Big Data Analytics -Taking a Deeper Dive, Financial Express

“Is internal comms about to get interesting?”, PR Moments

Training Gen-Y employees to be leaders by Nick Williams, Human Capital

Madhu Menon – CFO, Tesco HSC Participates In Bloomberg India CFO Summit 2014

We are investing more in tech as digital property is the way forward: Tesco CIO, the Economic Times

Company Encourages Employees to Go Green, The New Indian Express

Business Women Get More Opportunity, DNA

In Pursuit Of Happiness_The Hindu Business Line

The Future of Big Data in Retail, Images Retail

Garden away those corporate woes – Bangalore Mirror

Hackathons Morph Into Recruiting Vehicle, The Hindu

Tesco HSC Steps to Clean Karunashraya Lake, Bangalore | CSR Vision

Is Diversity Your Company’s Most Resounding Mantra? by Anju Sethi, Head, Learning and Development, Tesco HSC | CXOtoday.com

Oh Baby! Why women can’t break the IT ceiling | Bangalore Mirror

Decade-old Tesco captive still strong, Business Standard

Glen Attewell Interviewed On NASSCOM Website’s Face 2 Face Column

IndiaCSR: Tesco HSC Launches Sustainability Initiatives For Greener Future

OUR AIM TO PLANT TREES

Plan to protect dwindling wetlands of Bengaluru

NEW LIFE TO PLANTS IN PARK: Eenadu

In Retail, Domain-specific Skills Must For Effective Customer Servicing – TimesJobs.Com

Cos Now Hire Storytellers to Mentor Staff – The Economic Times

Training The Managers, The Tesco Way – HR Katha

Every Bit Counts – Human Capital

Lay The Foundation of IT With Agile Technology – CIO Review

For Children Of Migrant Worker – Bangalore Mirror

When change is the only constant – Times Ascent

Staying power of the new workplace

From Nottingham To Whitefield, Metro Life – Deccan Herald, October 5, 2015

Tesco HSC Announces Corporate Name Change to Tesco Bengaluru

From Seeing The Dawn Of Windows To Being The Director Of Technology For Tesco, Bengaluru, Vidya Laxman’s Journey – YourStory.com

Expat’s Diary: For Tesco Bengaluru’s HR-Head, ‘Passion’ And ‘Relationship’ Hold The Key To Indian Work Culture: HR Katha

Boss’s Day: Be a leader, not a ‘boss’ – Timesjobs.com

Gender Diversity’s Good, But Where Is It? – CXO Today

5 Ways To Appreciate An Employee – The Economic Times

Technology Consulting – What Does the Future Hold? – Consultants Review

Tesco Bengaluru Partners With Lithium Urban Technologies to offer a pioneering and emission-free transportation experience for its employees

Tesco Bengaluru Partners with Lithium Urban Technologies to offer emission-free transportation employees: India CSR

Eco-friendly Cars: Samyuktha Karnataka

Emission-free Transportation : Eenadu

Tesco, Lithium Urban Joins Hands: Deccan Herald

Tesco Bengaluru opts for green transportation with Lithium: The Times of India

Need to Reassess Traditional Approaches: People Matters

Marathon Mania: The Economic Times

Women techies log on to trendy, soft wear – Bangalore Mirror

How Retail Giant Tesco Handled The e-comm Onslaught – The Hindu BusinessLine

Investment In People Makes Good Sense: CXOToday

Deck the halls – Deccan Herald

Seminar on M-commerce Held – The New Indian Express

Staying power of the new workplace

Looking inside contemporary application architecture – Silicon India

Employee Volunteering is a key element in Tesco’s CSR efforts

Press Release: Tesco Bengaluru Wins Best Practice in Data Analysis Strategy Award

Tesco keen to work with Indian start-up ecosystem – Business Standard

TechGig: Women Achievers: It is important for women in technology to be seen, heard and leave an impact, says Tesco Bengaluru tech director Vidya Laxman

New Indian Express: Women Had a Blast

Bangalore Mirror: City Team Feeding UK’s Hungry

Economic Times: Whitefield Builds a Kingdom of Its Own

Hindustan Times: Want the job? Here’s why you should ditch the professionally-written CV

IndiaCSR: Tesco Bengaluru celebrates World Environment Day

Silicon India: Making Your Organization the Best Workplace

Company CSR: Tesco Bengaluru Supports Sankara Eye Hospital To Enable 430 Free Eye Surgeries

CSR India: Tesco Bengaluru supports Sankara Eye Hospital to enable 430 free eye surgeries

Tesco Bengaluru Plants 6500 Saplings Together with Local Communities to Increase City’s Green Cover

Prajavani: Tesco’s Tree Plantation Drive

TimesJobs.com: A Fresher’s Guide to The Technology Industry

Press Release: Tesco Bengaluru hosts Technology Day – Ignite 2016

Tesco Bengaluru bets on agile market push

Tesco Bengaluru installs e-toilets in Whitefield

Tesco Bengaluru Extends Maternity Leave to 22 Weeks

Forbes: Big Data At Tesco: Real Time Analytics At The UK Grocery Retail Giant

Human Capital: Technology At The Very Helm!

CSR Mart: Eco-friendly Transportation for Colleagues

Mint: Lithium Urban Tech paves the way for EV revolution in India’s cab market

ETRetail: Dev-ops adoption in retail in India

Human Capital: Creation of Measurable Goals

Press Release: Tesco Bengaluru renews its commitment to serving Tesco shoppers and colleagues at dedicated shared service centre

Outlook Business: Ride to rejuvenate

Be Grateful, Positive And Strong Urges Deepa Malik at 2017 IWD Event

ET CIO: Tesco Labs has up to 50 projects on the go at any one time: Tesco Bengaluru’s Priyadarsanie Ramasubramanian

Deccan Herald: Keeping a close watch

Deccan Chronicle: Corporate sector leads way in implementing new maternity bill

The Statesman: Path of progress

YourStory: Tesco’s Glen Attewell: ‘My father was a weaver, mother worked in textiles, they pushed me to succeed’

Press Release: Tesco Bengaluru appoints Sumit Mitra as CEO

ET Retail: Retail supply chain planning and optimization

Financial Express: Maternity Benefit Bill, 2016: From Anand Mahindra to TeamLease and Paypal: Will this hurt employment of more women? Here’s what they said!

World HR Dairy: Maternity Benefit (Amendment) Bill, 2016 increases paid Maternity Leave to 26 weeks in India | Major Highlights and Industry Reaction

TheDrum: Apple, Google, Lego, Tesco and BMW top UK’s most loved brands on social media

Economic Times: Bye-bye corner office: It’s one team, one space

Press Release: Tesco Bengaluru reinforces commitment to sustainable practices through World Environment Day activities

Business World: We Go Beyond The Mandated 2% For CSR: Aniisu Verghese, Tesco

Economic Times: Here is how companies are learning from millennials’ mistakes

Deccan Herald: Rise of AI redefining retail

Financial Express: Tesco Bengaluru CEO Sumit Mitra: We believe in driving a culture of innovation

Economic Times: 5 ways to delegate decision making

The Economic Times: To bridge gender gap, companies going big on innovation

Dr. Sumit Mitra wins ‘CEO of the Year’ at the Future Leaders Summit and Award 2018

Tesco in Bengaluru collaborates with Indian Institute of Science for a technology fellowship programme

Tesco Leaders at NASSCOM Product Conclave 2018

Securing mobile apps – Preventing MiM attack

Bengaluru goes from technology capital to talent hub as e-tailers hunt for IT skills

Tesco establishes a Business Services Centre in Budapest to serve its Central European operations

How to make an organisation an awesome place to work

We are a Great Place To Work® certified organisation.

Applied data scientists – A natural evolution for software engineers?

Tesco Business Services – UK Receives Process Improvement Award at the Engage 19

Tesco establishes a Business Services Centre in Budapest to serve its Central European operations

Tesco collaborates with NASSCOM Foundation to set up its first Nook in Bengaluru

Tesco, Nasscom to improve employability

My First Job: Sumit Mitra,CEO, Tesco Global Business Services

Read interview of Sumit Mitra; he is CEO of TESCO Global Business Services

Shiva Chinnasamy of Tesco on the evolving role of a technology leader

Top 5 Key Skills A Good Data Scientist Should Have

Bengaluru is central to how we run Tesco, says CEO Dave Lewis

Dr. Sumit Mitra – CEO, Tesco Business Services & Tesco Bengaluru is now on Confederation of British Industry (CBI) advisory board for India

NASSCOM Leader Talk: Interview with Dr. Sumit Mitra, CEO – Tesco Business Services & Tesco Bengaluru

Business Today: Tesco Bengaluru Helps Over 320 Underprivileged Youth Stand Tall Through Life Skills and Vocational Training and Job Placements.

TimesJobs.com: Leader’s talk: Sumit Mitra, CEO, Tesco Business Services

Economic Times: Develop The Habit of Collaboration

Entrepreneur India: Make Your Employees Feel Like the Founder

Tesco announces launch of community-based clean water programme in rural Bengaluru

Entrepreneur.com: Why Innovation in Hiring Has Become the Need of the Hour

Dr. Sumit Mitra wins ‘CEO of the Year’ at the Future Leaders Summit and Award 2018

Tesco Bengaluru appoints Sumit Mitra as CEO

Tesco Bengaluru reinforces commitment to sustainable practices through World Environment Day activities

Tesco Bengaluru renews its commitment to serving Tesco shoppers and colleagues at dedicated shared service centre

Tesco Bengaluru hosts Technology Day – Ignite 2016

Tesco Bengaluru Wins Best Practice in Data Analysis Strategy Award

Tesco HSC Announces Corporate Name Change to Tesco Bengaluru

Economic Times: Companies go liberal in giving time off to new dads

Analytics India: How Tesco Bengaluru Is Working On Using AI, VR And 3D Modelling In Retail Industry

Tesco Bengaluru Participates in Women – Only Hackathon

Dr. Sumit Mitra wins ‘CEO of the Year’ at the Future Leaders Summit and Award 2018

Tesco Bengaluru inaugurates first community career development Centre in partnerhsip with NASSCOM Foundation

Delivering The Most Compelling Offer For Customers

Tesco Business Services is recognised as one of the top 20 Most Admired Shared Services Organisations in the World by SSON

Waste food to Plant Wealth: Tesco helps farmers with compost

Sustainability Practices at Tesco

Business services of the future: More digital, more intelligent

How Bengaluru kept UK’s Tesco retail ops going during Covid-19

Vidya Laxman, Director, Tesco Technology: A bag full of opportunities will soon overflow with AI

Refuelling India’s Tech Economy

Top skills companies will look for in the post COVID era

How Analytics Is Shaping The Retail Industry In India

BCP PlayBook: Tesco put people at the heart of its COVID-19 resilience plan

Staying power of the new workplace

Tesco Business Services receives four awards at the ‘Impact Annual Awards Asia 2020’ organized by Shared Services & Outsourcing Network (SSON)

Tesco Bengaluru appoints Ramamoorthy Rajagopal as Finance Director

Tesco Bengaluru Appoints Nimmi Sebastian as Head of Communication & CSR

Despite Covid, Bangalore helps Tesco engineer a success story: An Economic Times Coverage

How analytics helped Tesco improve its customer satisfaction amid Covid: An Economic Times Coverage

Three years in a row, Tesco Business Services recognised as one of the Top 20 Most Admired Shared Services Organizations in the World by SSON