Junior to Mid Full Stack Engineer

🔒 Confidential Employer
Posted 24 March 2026
LOCATION
London
TYPE
Full-time
LEVEL
Associate
SALARY
£50,000 / year
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

JavaScript ReactJS NodeJS MongoDB Express HTML CSS Git

FULL DESCRIPTION

Junior to Mid Full Stack Engineer

Date posted: Tue Mar 17, 2026
Chancery Lane, London

SALARY RANGE
Competitive £40,000 to £50,000 per year + benefits depending on circumstances

ABOUT US

We are disrupting the way SMEs and entrepreneurs manage their business admin to give them more clarity, more free time, and less hassle. Our innovative software as a service platform (SaaS) was created to help people with no experience venture into the world of entrepreneurship. We build technologies that take care of the boring stuff, so entrepreneurs can focus on building great products and services.

Join us and discover hybrid-friendly, dynamic roles that make a difference for over 100,000+ small businesses in the UK.

ABOUT THE ROLE

Summary

Software Engineer / Developer - full-time - Junior to Mid-Level - Visa sponsorship available for UK based candidates.

  • Software Engineer – Developer
  • Design & develop our next gen web application & API with a MERN stack
  • Maintain and improve our proprietary CMS engine (Bootstrap/jQuery/ES6, OOPHP 8, MongoDB)

Responsibilities

  • Full SDLC: From requirements to design, implementation and production through CI/CD pipelines
  • Report directly to the CTO
  • Research and apply best practices throughout the system
  • Design and develop REST API endpoints with NodeJS/Express, build beautiful documentation
  • Design and develop MongoDB data structures, advanced queries/aggregation, and optimize performances
  • Design and develop web application with ReactJS according to product/UI specifications, user focused
  • Maintain and build new products/services/features with current systems
  • Maintain and build integration with various external APIs (AWS, Stripe, Zendesk, SendGrid, Twilio, Google Cloud (vision), AdWords/Bing Ads, Companies House, HMRC)
  • Maintain proprietary CMS (OOPHP 8, bootstrap/jQuery/ES6) and automation tools (NodeJS, ES6)
  • Collaborate closely with the product/content team, the business intelligence/digital marketing team, and the customer experience team
  • Contribute to code reviews, learning sessions and workshops

Technical skills

  • Must have 2 years commercial experience with the following -
  • JavaScript: ES5, ES6 - Front-end (single page app - ReactJS or jQuery/Bootstrap) - back-end (NodeJS, Express) - NPM, Webpack
  • HTML/CSS (DOM, CSS selectors, JS events)
  • At least one other object oriented language (OOPHP, Java, C#...)
  • Experience with responsive design
  • Experience with unit testing
  • MongoDB: Aggregation - Experience with querying advanced data structures (nested arrays and objects)
  • Experience with debugging tools (Chrome Dev Tools, Node inspect, Python debugger…)
  • Git
  • Basic Linux administration

COMPANY BENEFITS

  • Hybrid, from the creative studio, in the heart of London
  • Receive a powerful computer to work from your home
  • Annual pay-rise + bonus opportunities - pay reviews annually, with high increase potential, using a fair, objective and consistent formula
  • Employee stock options scheme (in development)
  • 10% Time to dedicate towards learning
  • 25 days holiday + bank holidays
  • 3% employer pension contribution
  • Cycle to work scheme
  • Health insurance
  • Gym discount
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