Job Details


Belfast, Northern Ireland


Platform Engineer (Ruby / Python or Go)

  • What is Slice?

    Slice is the easiest way to order authentic local pizza. We serve the $45 billion U.S. pizzeria market in two ways: by providing a pizza-centric mobile and web ordering experience for consumers and by empowering local restaurants with technology that grows their business and helps them compete with Big Pizza. Can you imagine what a local pizza shop could achieve with the resources of Domino’s?

    Slice was born in 2011 and has quietly bootstrapped its way to profitability while building a network of more than 10,000 pizzerias nationwide. Ilir Sela, the founder and CEO, started the company as a passion project to help friends and family in the pizza business but he quickly saw a massive opportunity and has built an amazing team of operators, technologists, and investors.

    We celebrate pizza as the ultimate shareable food: It turns everyday moments into memories and brings together friends, families, and communities. And when you order pizza from a place in your neighborhood, you support a local business. So whether you call it a pizza parlor, slice joint, or pizzeria, we’re here to help you order authentic local pizza and live your best slice life.

    The Ideal Candidate

    You are self motivated with the ability to make smart decisions and ask questions when necessary. You will have an understanding of, and interest in, highly available distributed systems. You always design for failure. You are also keen to learn more about new technologies.

    Things you will work on if you work with us:

    Building out reusable services that will scale across multiple product teams by understanding the larger product direction and solving for the general capabilities of the platform.

    • Deconstruct a product application into a smaller domain specific service with a plan to migrate to the new services.

    • Expanding on and building new tooling that will help developers move at a high velocity.

    • Use your experience in system design and software engineering skills to develop and deploy software that will help drive improvements towards availability, performance, efficiency, and security.

    • Collaborate with engineering teams to discover common pain points, develop solutions, and promote best practices.

    Things you may have already worked on:

    • Highly available web services.

    • A migration from a monolithic application into individual lightweight services.

    • Performance tests, load tests, smoke tests.

    • Working in a polyglot environment focusing on the best tool for the job.

    • Rewriting something in your favourite language, because why not?

    Essential Criteria

    • 3+ years professional experience.

    • Comfortable with a high level language like Ruby, Python or Go.

    • Experience with API design.

    • Solid grasp on testing principles.

    • General database and SQL knowledge.

    • Comfortable with the command line and Unix.

    • A fun and positive approach to your work, and treat others well.

    • Excellent problem solving, analytical and organisational skills.

    • Strong communication skills.

    • Able to clearly express opinions on product design, while respecting the thoughts and opinions of their peers.

    • Proven ability to communicate and collaborate effectively with engineers and non-engineering stakeholders alike.

    Desirable Criteria

    • Experience with distributed systems.

    • A background in refactoring monolithic systems.

    • Familiarity with messaging systems (RabbitMQ, SQS, ZeroMQ, Kafka).

    • Experience with Container Orchestration (Mesos, Kubernetes) and Docker.

    • Hands on Experience with ElasticSearch or Solr.

    • Love for Pizza.


    We operate like a startup, so being self-motivated, curious, and flexible is a good start. You prefer to come up with your own solutions to problems but are not afraid to ask for help. You enjoy making suggestions for how to improve our product and business, no matter the department. You’re the kind of person who roots for the underdog. And lastly, this job will probably be a lot easier if you have a soulmate-level love for authentic pizza.

     Why Slice?

    Join a community of best-in-class engineers who combine creativity, curious minds and a commitment to excellence with the desire and commitment to grow and build on the engineering skill base and community here in NI. Missing a few of the criteria but have worked in a pizza shop? Why not get in touch!



    • Market leading salary

    • Share options

    • Strong pension contribution

    • Health and dental care

    • Income and Death insurance

    • £750 a year to use for any self learning/education

    • Health and wellbeing benefits

    • Market leading maternity and paternity Schemes

    • Flexible working

    • Generous time off allowance and policies

    • Free friday pizza and Monday breakfast

    • Fully stocked kitchen/snacks

    • Annual conference attendance and training/development budget

    • Substantial gym membership discount

     How to apply?

    We do not use agencies as we have a strong network of referrals, and also want you to have the best recruiting experience possible. A CV gives us a good idea of your background, we are interested in your latest work and projects. Education is great to see, but it's not overly important to us. If you have them, be sure to include links to any personal projects, blogs, contributions, or anything you want to add to your application.

    My Pizza Slice Ltd is an equal opportunities employer and we value Diversity. We appreciate the differences in style and perspective as we believe it adds value to the organization, and we aim to recruit likeminded employees. We are also proud members of the Diversity Mark NI initiative as a Bronze Member.