Job Description

Senior Software Engineer - Backend

  • Division:
    Technology
  • City:
    London
  • Country:
    UK
  • Job Type:
    Full Time
  • Number of Hours:
    37.5
  • Contract Type:
    Permanent
  • Closing Date:
    23 November 2025
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Senior Software Engineer - Backend (37472)

About the role:

Join us at Holland & Barrett as we shape the future of chat, wellness advice, and AI automation.

Our Chat & Automations team is a pioneering new group on a mission to redefine how our customers engage with wellness through intelligent, personalised AI experiences. Working at the intersection of innovation and wellbeing, you'll help us build the next generation of customer interactions—powered by data, AI, and a passion for making healthy living simple and accessible.

We're looking for a Senior Software Engineer to join our mission-focused engineering squad and help us bring this ambitious vision to life.

What You'll Be Doing

  • Collaborate within an agile, cross-functional team of frontend and backend engineers, product managers, and engineering leaders.

  • Partner closely with teams across Design, Data, and Customer Service to deliver seamless AI-driven customer experiences.

  • Shape and deliver a roadmap that drives the digital transformation of a beloved 150-year-old brand.

  • Define and track success metrics that showcase your team's impact.

  • Thrive in a high-ownership, high-autonomy environment where innovation is encouraged and celebrated.

  • Work primarily remotely, with occasional in-person team days and visits to our London (Oxford Street), Nuneaton, or Amsterdam offices to connect, collaborate, and celebrate milestones.

Key requirements:

What You'll Bring

  • Proven software development experience with TypeScript, Go, Python, or similar languages.

  • Hands-on experience with OpenAI or other large language models (LLMs).

  • Strong understanding of RDBMS and NoSQL databases (e.g. PostgreSQL, DynamoDB).

  • Solid experience with AWS services – particularly Lambda, S3, API Gateway, Chime, and Connect.

  • Familiarity with vector databases, RAG, and agentic AI approaches.

  • Experience in real-time and event-driven architectures (e.g. WebSockets, Kafka).

  • Working knowledge of Docker and Kubernetes for scalable deployments.

  • Proficiency with modern testing tools and methodologies (e.g. TDD).

  • A strong STEM degree or equivalent professional experience that demonstrates exceptional technical capability.

Why Join Us

At Holland & Barrett, we're not just building technology – we're building a better future for wellness. You'll be joining a passionate, forward-thinking team that values creativity, autonomy, and meaningful impact. Here, your work directly enhances how millions of people engage with their health every day.

If you're excited by the challenge of bringing AI and innovation to the world of wellness, we'd love to hear from you.

What we offer:

What we offer:

Wellbeing & Lifestyle Benefits 

  • Health Cash Plan  
  • Life Assurance
  • Incentive Scheme - Based on company & personal performance
  • Virtual GP 
  • Private Medical care
  • FREE at-home blood test kit 
  • Holiday Purchase option 
  • Pension Contribution scheme
  • Access to ‘Wellhub' with gyms, studios and wellbeing apps 

Discounts & Savings 

  • 25% Colleague Discount with FREE Next Day Delivery 
  • Exclusive Discounts from a wide range of partners 
  • £/€50 Annual Product Allowance to spend in store 

Learning & Development 

  • Access to a variety of learning opportunities, including Level 2-5 Apprenticeships, Workshops and our Digital Learning Library 
  • AND MORE! 

Our culture respects equality, values diversity and encourages individuality – because this allows our people to unlock their potential and be their best. We welcome everyone who shares our EPIC values regardless of background, culture, disability, ethnicity, gender identity or sexual orientation

Holland & Barrett does not accept unsolicited resumes from search firms/recruiters. Please do not forward resumes to our job alias, employees, or any other company location. Holland & Barrett is not and will not be responsible for any fees if a candidate submitted by a search firm/recruiter unless otherwise agreed with respect to specific open position(s).


 
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Location
London Hub
7-10 Chandos Street, London, United Kingdom, W1G 9DQ
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