Senior Data Scientist

  • Holland & Barrett
  • Liverpool Street, London EC2M 7PP, UK
  • 15/07/2020
Full time Data Science Data Analytics Big Data Statistics

Job Description

Do you want to make a difference by being part of a next-generation data processing and analytics platform in the cloud in a greenfield environment? Holland and Barrett are a successful business focusing on making people healthier and happier. We started in 1870 and today, we are a highly profitable global Health and Wellness retailer with more than 1,000 shops worldwide, and we are the largest health and wellness retailer in the UK.

You will join the Data Science and Analytics team in London. You will work closely with Data Engineers and Business Stakeholders to deliver products ranging from topics like supply chain optimisation to loyalty schemes. Long-term, you will collaborate on optimising and automating the Data Science workflow to build the basis for our prescriptive analytics or artificial intelligence strategy where self-optimising solutions make independent, intelligent decisions.

Holland and Barrett are committed to its transformation into a technology and data-driven business. We hired an outstanding CTO with a long history of success in turning retailers into technology-driven businesses. We are bringing together highly talented and experienced people like yourself to build our data processing and analytics platform. We love the cloud, data, analytics and data science, and building our own solutions. We embrace the continuing evolution of Data Science and want to be at the forefront of building repeatable, automated Data Science and Machine Learning solutions to reduce or remove the Data Scientist's efforts on time-consuming, low impact, repeat tasks.

You have experience in solving real-world problems with machine learning using a variety of tools. You know how to solve a problem as well as how to deploy it into production, measuring and updating it as needed over time. You love working closely with data engineers and others in cross-functional teams to develop solutions iteratively. Importantly, you are pragmatic and experienced, able to identify and solve common problems swiftly and effectively with tools and libraries and you don't reinvent the wheel.

The Person

Key Accountabilities

  • Business
    • Collaborate with business and other stakeholders.
    • Communicate complicated results in a clear, non-statistical way to stakeholders.
    • Identify quick wins and long-term opportunities.
    • Help plan delivery.
    • Converting Business problems into Data Science projects.
  • Data
    • Exploration and ad-hoc preparation.
    • Feature engineering.
    • Collaboration with Data Engineers for automation or additional ingests.
  • Machine Learning
    • Define metrics and measures.
    • Identifying relevant algorithms and libraries.
    • Selecting candidate algorithms based on experience and knowledge.
    • Prototyping solutions to narrow options and parameters.

People Skills

  • Resilient
  • Open minded
  • Collaborative
  • Supportive
  • Positive
  • Conscientious
  • Fun

Technical Skills

  • Minimum 3 years of experience in a comparable role.
  • Analytical background and degree, e.g. Math, Data Science, etc.
  • Essential skills and experience
    • Data querying with Python or R and SQL
    • Proficient in R or Python
    • Supervised and unsupervised machine learning
    • Spark (SparkR / sparklyr or pyspark)
    • Statistics
    • Packaging Code
    • Git
    • Building / Maintaining Automated Production Systems
  • Beneficial experiences
    • Software Development practices
    • Cloud Computing
    • Distributed Computing
    • AWS (SageMaker, Airflow, Kafka, etc.)
    • Machine Learning for Streaming Data
    • Retail sector
    • Management Experience

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The Company

Holland & Barrett is one of the nation's most loved and trusted brands, known for offering quality health food, vitamins and supplements all sold by highly trained and qualified advisors.

Bucking the current trend of high street retailers, we forecast significant growth and expansion plans in the coming years, with considerable investment going into all areas of the business. We certainly embrace change and drive speed in everything we do. Every day presents a different challenge, but every day is also filled with fun, teamwork and passion to succeed and surpass every expectation.

Join us and see how far you can go…