Application Support Specialist

Company: twentyAI
Apply for the Application Support Specialist
Location: London
Job Description:

6 month Contract Inside IR35 – intent to extend or convert to perm

Hybrid – Central London

My client, a leading Financial Services organisation are seeking an Application Support Engineer to join a fast-paced trading technology environment on a contract basis.

This is not a traditional support role. The team sits at the intersection of production support, infrastructure, automation and engineering, supporting critical trading and post-trade paltforms used across global financial markets.

Key Responsibilities

  • Support Front-Office and Back-Office trading applications
  • Provide 2nd/3rd line support for trading and post-trade applications
  • Investigate and resolve production incidents and system issues
  • Work very closely with developers, infrastructure teams, and business users
  • Perform SQL-based data analysis
  • Develop and mainatin scripts using PowerShell or Python

Key Skills Required

  • PowerShell or Python scripting experience (essential)
  • Background in financial services / trading environments
  • Knowledge of Windows and/or Linux systems
  • Experience in application or production support roles
  • Ability to work in a fast-paced, high-pressure environment

This is a great opportunity to work closely with trading technology, contribute to critical systems, and gain exposure across the full trade lifecycle in a global financial markets environment.

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Posted: July 13th, 2026