Senior Software Engineer


LoyaltyLion is a data-driven loyalty and engagement platform trusted by thousands of ecommerce brands worldwide. Merchants use LoyaltyLion when they want a fully customised loyalty program that is proven to increase customer engagement, retention and spend. Stores using LoyaltyLion typically generate at least $15 for every $1 they spend on the platform.

Today LoyaltyLion works with over 10,000 fast-growth ecommerce retailers. Our mission is to help them succeed in the age of Amazon, driving growth through long-lasting customer relationships that go beyond price or logistics. Relationships built on emotional connections, aligned values and great customer experiences.

We’re a Deloitte Fast 50 company that recently raised $12.5m from Kennet, a SaaS-focused growth stage investor and we’ve grown from 40 to over 100 employees in the last year, and that’s just the beginning for us (we’ll be 150+ in 2022).

Role information

As a Senior Software Engineer, you will be working in the high-performance SCRUM team. Helping to build applications, delivering high-quality code with performance and scalability in mind. Mentoring more junior engineers. Working with the Tech Lead on designing architecture. Continuously improving your own skills to get the team and self to achieve the best results.

Some of the things you'll be doing:

  • Working in the Agile environment as part of the high performance SCRUM team
  • Delivering clean, well tested, scalable and maintainable code, both Front-end and Back-end
  • Working closely with the design team to deliver high-quality UI components
  • You will be crucial part of planning and continuous delivery of valuable features to the end user
  • You will be working on your personal growth with the Engineering Manager and Tech Lead.
  • Collaborating with the teammates on delivering high-quality solutions and code
  • Continuously doing Peer Reviews for achieving best results
  • Mentoring more junior engineers
  • Actively participate in design discussions; being the voice of experience

What we’re looking for:

  • Substantial experience in software engineering
  • Solid experience building React applications
  • In-depth knowledge of Javascript and Typescript
  • Strong understanding of testing
  • Strong understanding of good practices and clean code principles
  • Experience in building the back-end part of the application
  • Experience in Agile development practices
  • An insatiable appetite for learning

As an added bonus, you might:

  • Have exposure to the secondary languages we use in our stack (Ruby)
  • Have prior experience in e-commerce


Our technical stack:

  • Javascript & Typescript
  • React
  • Node
  • Ruby
  • Postgres
  • AWS

What we offer:

We are currently operating on a hybrid model, with a mix of home and office-based work from our new HQ on Fleet Street!

In addition to this we offer:

  • Be part of the first 100 employees that drive the future growth
  • Join at a major inflection point – eCommerce is booming and with it the demand for loyalty software like LoyaltyLion
  • Macbook, magic keyboard, and any other tech or equipment you need to do a great job
  • Remote and flexible working
  • 25 days holiday + bank holidays + carry 13 days holiday over into the next holiday year
  • Company days out and events, and team socials
  • Home office budget
  • Cycle scheme
  • Employee Assistance Program
  • Private medical insurance

Tom Banner

Connect with a Loyalty Analyst

Speak to a member of the team to find out how LoyaltyLion can help you drive customer loyalty and engagement.

Talk to us