Lead Data Scientist (Optimisation)

Hours: 36

Salary: Competitive

Location: Welwyn Garden City, Hertfordshire, AL7 1GA

United Kingdom

Apply by: 07/10/2017

Lead Data Scientist (Optimisation)

Welwyn Garden City, Hertfordshire, AL7 1GA

About the job

About the Tesco Data Science Team

The Data Science Team sits centrally within Tesco and focuses on solving complex business problems and developing data products that can be deployed at scale to our customers. Our work spans across multiple areas including physical stores, online, fulfilment, marketing and Clubcard and we encourage rotation amongst our Data Scientists so they can apply their skills to different business challenges and gain deeper levels of subject matter expertise. The Data Science Team is made up of multi-disciplined researchers and practitioners with varied backgrounds from both academia and the business world. We strive to foster a culture of innovation by encouraging our Data Scientists to focus 20% of their time on self-driven projects that utilise their expertise to solve real-world challenges that Tesco faces.

Our core work involves:

  • Developing data products that can be deployed at scale both internally and externally
  • Supporting the automation of decision making across the business
  • Optimising processes for key business objectives
  • Conducting deep dive exploratory analysis to inform strategic decision making

Examples of our previous work include:

  • Building search and recommender Systems for our web portfolio
  • Optimising space and range within our stores
  • Optimising delivery routes for our vans
  • Developing enhanced picking algorithms for our fulfilment centres
  • Optimising online prices
  • Developing measures of long term customer value

Main Responsibilities

As a Lead Data Scientist (Optimisation) you will have the following responsibilities:

  • Own the Optimisation technical domain and lead strategic engagements with multiple business units
  • Line manage junior Data Scientists and mentor and coach wider team in best approaches to optimisation problems
  • Help to define the strategic direction the team should take, trading off between contradicting priorities
  • Translate ambiguous business challenges into data science problems and applications
  • Manage, guide and mentor the team in their daily work
  • Communicate complex solutions in a clear, understandable way to non-experts
  • Work end-to-end on Data Science developments, contributing to all aspects of the project lifecycle which result in productionised data products
  • Scientifically analyse and evaluate the effectiveness of different approaches to guide future development and track the value created by the team
  • Build mathematical models on top of big data architectures to gain deep insights into opportunities to improve the customer experience and the Tesco business
  • Promote data science across Tesco, and promote Tesco across the external Data Science community

Ideal candidate

You are an experienced Data Scientist with an advanced level of capability across the Data Science Toolkit (Maths & Stats, Programming, Machine Learning, Communication & Visualisation etc) and a deep knowledge of the Mathematical Optimisation technical domain. You therefore tick the majority of the following points:

Specialist Optimisation Knowledge:

  • An expert in aspects of mathematical optimisation including one or both of the following techniques:
    • Meta-heuristics for large scale problems
    • Mixed integer linear programming decomposition methods (i.e. Branch and Price, Lagrangian relaxation etc.)
  • Hold a doctoral degree in an area of optimisation or similar equivalent industrial experience
  • A deep knowledge of state-of-the-art approaches and algorithms in combinatorial optimisation
  • Previous experience of stochastic, dynamic, or robust optimisation problems
  • Undertaken a year or more of post-doctoral research in an academic research group
  • Industrial experience in applying Optimisation techniques across industrial problems in fulfilment, supply chain or logistics

Mathematical & Statistical Understanding:

  • A strong numerical higher degree in a mathematical, scientific, engineering or computer science discipline with application to Data Science
  • The ability to use your academic knowledge and commercial experience to tackle specific business problems
  • An analytical mind set and the ability to use your academic knowledge to tackle specific business problems

Programming Experience:

  • Experience with different programing languages and an advanced level in at least one - Python, Java, Scala, R (or similar)
  • Experience configuring open source Data Science environments
  • Experience using open source big-data technology such as Apache Hadoop, Spark, Impala, Hive, Pig, MapReduce

Management & Leadership Experience:

  • Line management experience desirable
  • Experience of coaching / mentoring other in optimisation approaches
  • You have experience in setting a strategic direction and running complex data science projects with multiple stakeholders
  • Experience in hiring and building out high performing Data Science teams within large and complex organisations
  • You can influence senior stakeholders
  • You have a passion for implementing change

Commercial Experience:

A proven track record of:

  • Leading Data Science project developments involving multiple stakeholders
  • Delivering high impact Data Science developments within complex organisations
  • Generating insights from large data sets containing event records for millions of customers
  • Partnering with technology teams to productionize your developments and roll out at scale

A background or strong understanding of the retail sector, logistics and/or ecommerce would be advantageous but is not required

About the company

Our vision here at Tesco is to serve Britain’s shoppers a little better every day.

We want to become every customer's favourite way to shop, whether they are online or in our stores.

As one of the world’s largest retailers, Tesco has over 6,000 stores globally, successful online and digital businesses and a truly innovative culture. We operate in complex environments and with a volume of data few other companies have access to. We have embraced Data Science solutions full on, exploiting expert techniques to drive the business ambition of becoming a multi-channel leader and we are looking for curious individuals who want to make a mark and contribute to this ground breaking work.

Package description

Package Description

  • We offer excellent benefits that help make Tesco a great place to work. These include but aren’t limited to:
  • An annual bonus scheme which you can achieve up to 3.5% of base salary.
  • Privilegecard (including a 2nd card for a family member) after 6 months service with 10% off most purchases at Tesco.
  • A retirement savings plan - 4%-7.5% contribution rate
  • Life Assurance - 5 x contractual pay
  • Buy As You Earn Scheme
  • Save As You Earn Scheme
  • Deals & Discounts through Tesco including Tesco Mobile & Tesco Bank
  • Deals and Discounts through many other external businesses

Application process

Our office application process varies depending on the role and the level of experience needed.

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