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Junior Front End Developer

About the role

SamKnows is the global leader in internet performance measurement. We’ve been collecting data since 2008 on all manner of metrics, from how good Netflix performance is to figuring out why Fortnite isn’t working for gamers. The SamKnows front-end team plays a crucial role in how this data is displayed on our cloud-based analytics platform for the most influential Internet Regulators and Service Providers in the world.

That’s where you come in. You’ll be working as part of our multi-functional product teams to build features and products that our users will love. If you’re self-organising, embrace agile working and are user experience focused, with a good understanding of the product lifecycle and are familiar with Vue.js or React, then it’s likely that you’re the perfect fit for us.

You’ll be joining a supportive and collaborative team where hard-working, determined and responsible candidates will thrive. We’re always keen to hear new ideas and feedback on processes, so someone happy to instigate change and motivated to make things better is essential.

Best of all, SamKnows is the place to change a job into a career. There are tons of opportunities to progress with additional responsibility and autonomy on offer if you want it.

Our team often goes to conferences and makes use of the generous SamKnows training budget.

Example projects

Here's a couple things you could be working on:

  • Growing and maintaining our storybook-powered component library
  • Helping improve SamKnows One, our central product, with new features and improvements
  • Helping maintaining our marketing sites using our reusable component library, as well as adding new pages created by our creative team to our main site: samknows.com

Our tech stack

  • Vue.js, Vue CLI 3, Vuex, vue-router to power our sites
  • Cypress for end-to-end testing
  • ES6+ and TypeScript for writing the actual code
  • ESLint / Prettier for code formatting
  • Highcharts for charting and Leaflet for mapping
  • Jest for unit testing
  • Storybook for our component library
  • SASS / Atomic design / BEM / Bootstrap grid (flexbox)
  • A tiny bit of node.js
  • Prismic as our headless CMS

(This is what we use, not a wish list - don't worry if you don't know what some of this is!)

Essential skills

  • Experience with Git
  • Worked in an Agile environment and good understanding of AGILE principles
  • Good understanding of HTML, CSS and JavaScript, and experience working on websites of any size
  • Self learner
  • Self organised and can work independently with good interpersonal and communication skills
  • You have some familiarity with a modern JS framework such as React, Vue, Svelte etc. (or you are enthusiastic about learning more about them).

Desired skills

  • Interest in design systems, component library, living styleguide, or reusable components/styling
  • Desire to level up on JavaScript
  • Desire to learn about testing techniques: unit and end to end (we use Jest and Cypress)
  • Understanding of REST APIs
  • You understand the value in delivering quality work—as opposed to building quick code that'll need to be rewritten later
  • You understand that the web is for everyone and build inclusive, accessible systems.


We offer the following benefits, as well as awesome colleagues, engaging work, and the opportunity to help us make the internet better for everyone!


25 days holiday each year plus bank holidays. You can sell back any unused holiday, but we strongly encourage you to take them.

Great office location

Whether you’re working at our London office, nestled just behind the Tate Modern and a stone’s throw from Borough Market, or in Washington at Tyson’s Corner, there’s plenty of culture, eateries, drinking holes, and interesting things to do.

Flexible working

Whether your child's ill, you're waiting for a package, or you have some deep-focused work to do, we all work from home from time to time.

Maternity and paternity leave

Paid maternity, paternity, and adoption leave, which you’re eligible for if you join SamKnows more than 13 weeks before your expected date of childbirth or adoption.


SamKnows have a private pension scheme and will contribute 5% to your pension if you contribute a minimum of 4%.

Private health & dental care

Private health insurance with AXA PP Healthcare, includes dentist and optician cover. Paid sick leave (for both your physical and mental health).

Hardware of your choice

Choose your own equipment and we’ll do our best to get them for you before you start.

Learning and training

We’ll contribute towards books, training courses, and conferences that help you learn and grow in your career here.

Interest free season ticket loan

Not for your favourite football team – for you to get into work for less! Pay back the loan in your monthly pay check before tax.