Mid Level Fullstack Ruby on Rails Developer

About us

We believe in a world where you have trustworthy customer reviews for all products and services. Our mission is to increase trust between consumers and businesses by making online reviews more reliable and transparent.

Judge.me is a bootstrapped, profitable, and fast-growing SaaS company. We build our own products that customers love, best known for Shopify's number 1 ranked app Judge.me Product Reviews app with over 27,000 five-star app reviews.

We rapidly gained enormous traction, growing our number of users by more than 50% per year for the last four years just by word of mouth with zero paid marketing or sales. Over 400,000 shops in 140+ countries actively use our software and altogether fulfill over 70 million orders every MONTH, for which we generate over 2 million order-verified buyer reviews per month.

Most of our 50+ person team is working at our headquarters in London (UK) and we have customer support staff in London (UK, headquarters), Saigon (Vietnam), Casablanca (Morocco), and Sao Paulo (Brazil), enabling 24/7 service. 

Don’t miss this exciting opportunity to be at the forefront of a transformation of the customer reviews space.

Find out more about our culture and about our team.

About the job

We are looking for an experienced mid-level fullstack engineer who can assist in developing, testing, maintaining, and improving our system whilst mentoring our junior team of developers. The role will be based in London where we are building out the HQ office.


  • Assist in designing, developing, testing, maintaining, and improving the system.
  • Participate in product planning management discussions for a better understanding of the company's products.
  • Being user-oriented when delivering features and developer-oriented when delivering codes.
  • Reviewing the code of others to identify potential inefficient codes.
  • Self-management and delivery of features without hand-holding.
  • Training, mentoring, and managing our junior developers.


  • 4 to 7+ years experience. Any programming languages but preferably in Ruby and Vue.js
  • Good problem-solving skills with an understanding of data structures and algorithms.
  • Security and performance awareness.
  • Familiarity with coding standards and best practices.
  • Self-management and self-motivation.
  • Great English, both verbal and written.

The ideal candidate will have:

  • A Bachelor's degree in Computer Science or similar.
  • Experience with production troubleshooting, monitoring systems, and managing large production infrastructure.
  • Experience with Linux, command line, scripting (Bash, Python)
  • Experience with our tech stack:
    • Ruby, Rails, Sidekiq
    • VueJS, JavaScript, CSS, HTML
    • PostgreSQL, ElasticSearch
    • AWS services, e.g. EC2, EB, ES, S3
    • MongoDB, Redis
    • NodeJS, PHP, Python, Bash
    • Git, GitHub, GitHub flow
    • NewRelic, Kibana, Cloudwatch
    • CircleCI, GitHub Action
  • Familiarity with cutting-edge technologies, big data, or artificial intelligence algorithms.
  • Have an investment mentality, and want to build for the long term

Why it's awesome to work with us

  • We're a diverse, international, and close-knit team that is growing rapidly.
  • We make products that our customers love.
  • We champion an open culture of continuous improvement, where everyone is heard and criticism is always constructive.
  • Our hours are flexible. There's no overtime and no dress code. You can wear whatever you want (but wear something, of course).
  • We offer great development and learning opportunities.

Challenging yet interesting problems we are trying to solve:

  • Business: We deliver real business results to e-commerce businesses of all sizes, with our super affordable tool delivering great ROI to customers by improving trust, generating reviews that improve conversion rates on product pages, and generating follow-up sales directly.
  • Performance: at our scale, with tens of millions of requests a day, a simple change makes a meaningful impact.
  • Reliability: We serve over 240K shops, and generate over 1 million verified buyer reviews monthly, in virtually all of the timezones, 24/7, all year around.
  • Security: To verify the authenticity of reviews, we have access to orders with billions of USD in value every month. With great data, comes great security responsibility.

Compensation and Benefits:

  • £45,000 - £78,000 per annum based on experience
  • Hybrid Remote/Office working - 2 days in the office
  • Company laptop.
  • Private health package with Vitality.
  • Employee discount: instant vouchers, cashback, reloadable cards, and the SmartSpending app.
  • Employee Wellbeing Centre: exercise videos, recipes & nutrition, financial guides, and tools, and mindfulness videos.
  • 30 days leave
  • Weekly team lunches out, on us.
  • Quarterly team events.
  • Flexible work hours, within reason. No overtime
  • No dress code, wear whatever you want (but wear something of course).


  • Office in London, UK
  • Located in Old Street in the heart of Shoreditch, easily accessible, with excellent transport links.


London, United Kingdom

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