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London - £700 - £900 per day Contract Posted by: Joseph Harry Ltd Posted: 1/28/2026 7:46:30 AM
 
 

REMOTE Lead Python Developer (Software Engineer Programmer Developer React TypeScript Python PostgreSQL Node Fixed Income Equities Derivatives JavaScript Node Credit Rates Bonds Agile AWS GCP Azure Buy Side Asset Manager Investment Management Finance Front Office Trading Financial Services) required by our asset management client in London.

You MUST have the following:

  • Good experience as a Senior/Lead React Developer/Software Engineer/Programmer
  • Demonstrable leadership experience such as carrying out projects, delegating work, reporting to senior management, architecture and mentoring more junior team members
  • Expert TypeScript, JavaScript, React and Node
  • Advanced Ag-Grid
  • Experience in finance
  • Agile

The following is DESIRABLE, not essential:

  • Trading, equities, Fixed Income, derivatives
  • Redux, Redux Saga
  • AWS or GCP
  • PostgreSQL
  • Python

Role: REMOTE Lead Python Developer (Software Engineer Programmer Developer React TypeScript Python PostgreSQL Node Fixed Income Equities Derivatives JavaScript Node Credit Rates Bonds Agile AWS GCP Azure Buy Side Asset Manager Investment Management Finance Front Office Trading Financial Services) required by our asset management client in London. You will lead one of five teams that are responsible for the build and maintenance of a multi-asset, in-house portfolio management system. You will be a hands-on lead but also have line management responsibility. The team has a Back End emphasis, using a stack of Python, Node, PostgreSQL and AWS. There would be a small amount of Front End exposure, but your Front End ability can be limited. The Front End is React, TypeScript, Redux, Redux Saga and Ag-Grid.

You will join the team having demonstrable leadership experience such as carrying out projects, delegating work, reporting to senior management, architecture and mentoring more junior team members. It is imperative that you have worked in finance. From a technology perspective, you will be an expert across Python, PostgreSQL and AWS. An appreciation of trading and financial products, including derivatives, would be desirable, but is not essential.

The department has a relaxed hybrid working policy. You will need to come into the office for demos and other meetings but, generally, around twice/week is sufficient.

This is an environment that has been described as the only corporate environment with a start-up/fintech attitude towards technology. Hours are 9-5.

Duration: 12-24 months

Rate: £700-900/day

London, UK
IT
Executive
12-24 months
ASAP
£700 - £900 per day
Joseph Harry Ltd
Anthony Russell 
JS-BETL
1/28/2026 7:46:30 AM
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