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The Company
Founded in 2015, ExpenseIn set out to make expense management easier and less frustrating, replacing time-consuming, paper-based processes with a smarter, faster solution. As we grew, we introduced new modules like invoice management, carbon reporting, and volunteer expense claims - all designed to save businesses time and hassle.
Today, we help companies in over 50 countries process more than a million expenses every month. In January 2025, we were acquired by AccountsIQ to bring even more value to finance teams. Together with the AIQ team, we continue to innovate and scale, helping businesses take control of their finances with smarter, more connected solutions.
The Role
Reporting to the Product Director, we’re seeking an experienced Full Stack JavaScript Developer to join the UK’s leading cloud-based expense management solution. In this role, you’ll be expected to execute front-end and back-end development activities whilst demonstrating your passion for delivering high-quality and innovative software solutions.
While you’ll be experienced in multiple technologies (e.g. React, Next.JS, Vue.JS), you’ll also be working in a collaborative and agile environment, with opportunities to co-own the application’s architecture and technical direction.
What you’ll be doing
- Designing, building and deploying mobile, web and headless CMS applications using a range of technologies such as React Native, TypeScript and Next.JS.
- Responsible for the full development stack, including front-end (React Native, HTML, CSS, Tailwind) and back-end (SQL persistence).
- Partaking in collective ownership of the application’s domain-driven architecture following established object-oriented design principles.
- Partaking in all parts of the development process from design to testing and delivery.
- Writing and executing unit, integration and system tests on both your own and others' code.
- Performing code reviews and implementing secure coding practices.
- Working well in a team, including technical and non-technical colleagues.
What you’ll need
- 3+ years of experience working with the following technologies
- JavaScript (React Native, TypeScript and Next.js)
- Mobile development (iOS and Android)
- SQL and database design (SQLite or similar)
- HTML & CSS (Tailwind, Bootstrap or similar)
- Excellent understanding of HTTP and REST
- Degree in an IT-related discipline.
- First-class interpersonal and communication skills (both written and verbal).
- Knowledge of automated testing tools and frameworks would also be beneficial, along with exposure to DevOps, technical documentation writing and open-source work.
Why work with us?
As a forward-thinking, collaborative company, we combine drive, energy, and ambition with a friendly, supportive culture that encourages everyone to do their best work. With a strong focus on growth and expansion, we're poised to elevate both the ExpenseIn product and the level of service we provide to our customers. We’re looking for passionate, talented individuals to join our team as we work together to increase efficiency and add value to ordinary business processes.
Some of our perks
- 28 days annual leave + bank holidays + 1 day off for your birthday
- Service Leave
- Remote working
- Private Health Insurance
- Pension contribution (3%)
By submitting your application, you agree that AccountsIQ Group may collect your personal data for recruiting, global organization planning, and related purposes. AccountsIQ Group’s Privacy Policy explains what personal information we may process, where we may process your personal information, our purposes for processing your personal information, and the rights you can exercise over AccountsIQ Group’s use of your personal information.
AccountsIQ London, England Office
24 Eversholt Street, London, United Kingdom, NW1 1AD
