ION Developer – 10007BRM2

Website Proactive IT


£825 – 850 per day

ION Developer – HYBRID WORKING – 3 days onsite

We are working with a Global MSP who are in turn working with a reknowned Global Financial Services institution.

Your role

Are you passionate about delivering new and exciting applications to support the Fixed Income Rates and Credit trading desks? Are you motivated to deliver real business value whilst ensuring existing functionality remains intact? We’re looking for someone like that to:

  • Develop solutions to key business challenges developing Java applications or using the ION toolset
  • Refactor and enhance existing components and solutions
  • Manage UAT and demonstration sessions with key stakeholders

Your team

You’ll be working in the global Fixed Income Rates and Credit markets technology team. We are a fast paced, highly motivated, delivery focused but friendly team, present in 8 cities in 6 countries covering US, Europe and Asia Pacific. Our job is to create and deliver innovative solutions for business problems whilst maintaining a complex and multifaceted platform.

Your expertise

  • Good java experience (minimum 5 years)
  • Previous ION knowledge, to an expert level (ION Trading / ION MarketView Platform experience)
  • Good understanding of low-latency, multi-threaded code
  • Sound knowledge of object-oriented programming and design patterns. Exposure to functional programming is also highly desirable
  • Experience of working in agile teams

The following are highly desirable but not a strict prerequisite:

  • Good understanding of bond pricing, ideally with PXE
  • Solid understanding of Rates and Credit bonds and derivatives
  • Detailed understanding of the nuances of trading venues such as Bloomberg, TradeWeb
  • Experience in automated testing and continuous integration
  • Experience of Python, Perl and other scripting languages
  • Experience of Kafka


Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted. 

Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation

We take our obligations to protect your personal data very seriously.  Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website

  • Accepted file types: jpg, doc, docx, pdf, Max. file size: 5 MB.
    Allowed file types: jpg, doc, docx, pdf Maximum upload size: 5mb
  • This field is for validation purposes and should be left unchanged.