Full Stack Developer- Flexible Working Available

London (Central), London (Greater)
14 May 2021
14 Jun 2021
Full Time
Contract Type


This is an opportunity to join a creative, cutting edge software company.

Caplin is the market leader in web trading technology and single-dealer platforms. Its award-winning software enables its customers to build high-performance web trading apps and to deliver real-time information, including live prices, securely and reliably to those apps.

We currently have an immediate vacancy for a software engineer based in London who can work closely with other developers, QA and User Experience in an agile environment.

This is an outstanding opportunity for an individual wanting to bring their skills to an organisation at the leading edge of web-based trading technology and with blue-chip global financial clients.

The Role

The successful candidate will be building large-scale, complex applications.  Our solutions use Javascript and React on the front end, React Native on mobile, and Java and Kotlin on the back end.

At Caplin we look for team members with a wide experience of technologies and with deep knowledge in at least a few; people who are happy to get stuck in and deliver with the most appropriate technology for the job at hand.

We expect you to have good commercial experience with at least one of either Javascript or Java, but you will also have some experience in a number of other areas, such as:

  • Web development using HTML and CSS
  • React / React Native / Redux
  • Delivery in an agile environment
  • Server side development in Java / Kotlin


As a Caplin Developer you will be:

  • Creating compelling front-end applications for performance critical financial applications
  • Working with cutting edge web development tools and Caplin’s streaming based libraries
  • Building well architected, tested and documented products
  • Participating in hack days and exploring emerging technologies
  • Working with experienced, like-minded colleagues in a relaxed and friendly environment


  About You

You have the following skills and experience:

  • Web development using React or server side development using Java
  • Have a keen eye for Design and UX
  • An understanding of automated test tools and the need to write tests for your code
  • Enthusiasm for Agile development approaches and environments
  • A team player, and enjoy working closely with other developers, UX and QA engineers in small teams
  • Proactive and self-improving
  • Detail-oriented

Other desirable skills

  • Server side development, using Kotlin
  • Understanding of messaging and pub/sub patterns as well as request/response.
  • Knowledge of cloud deployment tools and environments
  • Experience in working in finance

Compensation & Benefits

  • Salary range appropriate to qualifications and experience
  • Flexible working environment and option for working from home days
  • Regular self-directed time
  • 6% additional salary pension contributions; life cover; income protection; private medical insurance with Vitality; salary sacrifice scheme for additional holiday purchase and additional pension contributions
  • Training and development opportunities
  • Enhanced Maternity/Paternity policies
  • Regular staff social events
  • 24 days holiday per year rising annually to 28


Bankside House, 107 Leadenhall St, London EC3A 4AF

About Caplin Systems Ltd

Caplin’s award winning software provides real-time web connectivity products that allow market data and trading services to be delivered over the Internet using HTML5 technologies and unique UX driven applications.


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