Senior Back End Engineer

Permanent employee, Full-time · London

KatKin’s Opportunity

Did you know that some cat food contains as little as 4% meat? Considering cats need meat to thrive, that’s a problem. Cats have been neglected by the pet food industry for too long, being offered variations of dog food, rather than food designed specifically for their enjoyment and health. KatKin gives cats what they really need and crave - 100% Fresh premium meat. Pure and simple.

Rated 4.9 out of 5 on Trustpilot with many cat owners reporting transformative benefits, we’re the highest rated cat food brand in the UK. Join our fast-paced, innovative team and help more cat people discover the best food for their cat’s health!

Why You’ll Love Working With Us

If you want to join and grow an ambitious, mission-led, high-growth startup that’s making a genuine difference to cat’s (and their people’s) lives, you’ll love working at KatKin.

With a growing audience of cat people, an expanding Fresh meals recipe book, and the science to back it all up, you get the sense that KatKin is a mere whisker away from becoming a household name for helping cat people do the best for their cats.

The Role
You will work closely with our CTO as part of the tech team to help meet the day to day back end business needs of KatKin and its stakeholders. This includes planning, execution and delivery of the API’s, Data Models, Service Infrastructure and integrations.  We are a close-knit, focused team who are committed to consistently delivering high quality technology, on time, as part of a tech-driven mindset that lets us focus on building the right solutions for scaling our business into the future.
This Hands-On Role Includes Ownership Of:

  • Shared responsibility for the maintenance and quality of codebases and infrastructure

  • Delivering new API’s to serve our scaling needs

  • Delivering Services to bring new features to our customers

  • Delivering Integration with partners and third party services that help our customers love our product

Who You Are

  • Very familiar with RESTful web services and OAuth 2 concepts.

  • 5+ years experience as a full-time developer experienced  in a statically typed OO language (e.g. Java, Kotlin, C#, C++).

  • Familiarity with microservices architecture and design.

  • An understanding of software security and common exploit methodologies

  • Agile development (scrum, kanban, peer reviews etc)

  • An ability and desire to learn new skills quickly

  • TDD is your thing, you write unit tests because it’s the right thing to do.

  • Coordinate and coach other developers.

  • Genuine passion for technology

Nice to Have (but not essential)

  • Strong familiarity with the AWS ecosystem of products, ideally with experience building serverless or microservice-driven applications

  • TDD & BDD experience

  • Familiarity with CI/CD pipelines and tools, particularly Github Actions, Jenkins or CircleCI

  • Experience with Git

  • Familiarity, or an interest in Observability

What We Offer:
  • Competitive salary and a MacBook

  • Career defining opportunity in being instrumental to scaling our brand, fast

  • No egos and a small close-knit team

  • 25 days holiday every year plus your birthday off

  • 4 week WFA (work from anywhere) policy

  • 1-2 days WFH every week

  • 12-weeks paternity / maternity leave

  • Discount for KatKin fresh meals

  • AXA Health Insurance including optical and dental

  • Yearly personal development budget 

  • Company pension

  • Free popcorn, all the tea and coffee you can drink, fresh fruit, great banter and a cat (and dog) friendly office

To Apply
Send your CV to
About us
We aim to encourage a culture where people can be themselves and be valued for their strengths. We’re proud to be an equal opportunity employer, and actively encourage applications from all backgrounds. At KatKin we celebrate differences, and everything that makes our colleagues unique, by upholding an inclusive environment in which we can all thrive. 

We want to make our recruitment processes accessible to everyone, so if there is any way that we can support you to be the best you can be, please contact
We are looking forward to hearing from you!
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