Fullstack Software Engineer



YAYZY is looking for a superstar Software Engineer to help us bring the world’s first bank for climate action and sustainability to life. If you love dipping your fingers in different technologies, are genuinely motivated to create incredible experiences and are an empathic problem solver with tons of software engineering experience, we’d love to speak with you.

This role is responsible for implementing new features, maintaining and extending the existing projects for both backend and mobile client and future projects. The engineer would strive to ship extensible software with the speed and beautiful UI in mind.


We’ve got a clear mission - to boost sustainable consumption and increase wealth and to do so we are helping our customers track their carbon footprint within a delightful banking and investment experience. We are VC-backed early-stage fintech start-up based in the city of London.  


As an early member of the team you would have significant influence over how the product shapes, would design and implement the product from scratch and help us grow the tech team. So, it’s important you can work autonomously, set your own schedule and are excited about helping us scale rapidly.


Job duties

Building reusable code and libraries for future use.

Translation of UI/UX wireframes to native mobile components.

Working closely with business stakeholders, designers and staff to apply your expertise to many interesting technical problems.

Constant communication with colleagues.

Determine the best libraries and services to integrate for a specific functionality.

Write tests and documentation covering written code.

Assesses projects security and update or replace unsecure dependencies and/or fix the vulnerabilities.

Improve and extend the overall architecture of the application.


Qualifications and skills

Degree in Computer Science BSc or a BSc in a related field, or experience in lieu of this

Commercial experience

Learn about and champion best practices in code, architecture & processes

Analytical Thinking

Critical Thinking

Strong communication skills

Eye for detail and identifying problems

Collaborate and learn with other team members via pair programming, mentoring, code reviews, and technical talks

An understanding of business

Pro-active, entrepreneurial 'can do’ attitude


Nice to have: Environment volunteering, Fintech experience


Tech Requirements


Must have:

  • JS ES6

  • React / React Native

  • Node.js

  • Source control and versioning: Git


Very good to have:

  • Expo

  • Jest

  • Express.js

  • AWS / Azure


Nice to have: 

  • Python

  • Postgres

  • MongoDB


  • Great opportunity to grow with Yayzy

  • Flexible working

  • Proper Coffee

  • Beer on tap

  • Dog friendly workplace

  • Working Closely with YAYZY’s founding team

  • Teas, Cider, hot chocolate fruits and more

  • Ping-pong, Foosball and arcade games 


We’re building a collaborative culture of inspiration, action, integrity and technological innovation. We will listen to you and we want you to grow and develop with us

If you’re interested in the role and have UK work authorisation, please send your CV and link to your portfolio to recruitment@yayzy.com 

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Contact us: hello@yayzy.com

Copyright © 2019 YAYZY Limited. Registered in England and Wales, no.12272318,

with a registered office at 2 Minster Court, City of London, EC3R 7BB, London, UK.