Application Support Engineer – Trading Systems (Fintech)
£500–£575/day Inside IR35
6-Month Contract - Hybrid (London – 3 days) - With the option to convert to perm.
You'll be working in a front-office trading environment in Central London. The business is scaling its support and engineering capability across critical trading and post-trade systems.
They are investing heavily in automation, resilience, and next-gen tooling (including AI/LLMs), creating a role that sits beyond traditional support — closer to engineering, optimisation, and platform ownership.
This hire is driven by growth, system complexity, and the need to modernise workflows across both execution and post-trade operations. Strong likelihood of long-term extension or permanent conversion.The Role
This is a high-impact support & engineering role within a live trading and post-trade ecosystem:
Own stability and performance of production trading and post-trade systems
Drive automation across support processes (PowerShell / Python)
Troubleshoot complex issues across Windows, SQL, and integrated applications
Work closely with traders, ops, and vendors to resolve and prevent issues
Improve post-trade workflows, reconciliation, and data processing pipelines
Influence system improvements and future platform direction
Engage with vendor platforms (e.g. TT, ATEO or similar post-trade/reconciliation solutions)
What We’re Looking For
Strong PowerShell and/or Python scripting capability
Experience in trading / financial services environments
Solid Windows and SQL background
Exposure to post-trade or reconciliation platforms - Preferably Trading Technologies ATEO system or similar such as Duco, SmartStream, etc.)
Proven track record of automating and improving support functions
Comfortable in high-pressure, front-office-aligned environments
Interest or exposure to AI / LLM tooling (bonus)
Why This Role
Direct impact across trading and post-trade operations
Blend of support, automation, and engineering ownership
Exposure to AI-driven initiatives and modernisation work
Clear path to long-term role in a growing platform environment
To apply – click the link or email for a faster response
or continue with email
£500–£575/day Inside IR35
6-Month Contract - Hybrid (London – 3 days) - With the option to convert to perm.
You'll be working in a front-office trading environment in Central London. The business is scaling its support and engineering capability across critical trading and post-trade systems.
They are investing heavily in automation, resilience, and next-gen tooling (including AI/LLMs), creating a role that sits beyond traditional support — closer to engineering, optimisation, and platform ownership.
This hire is driven by growth, system complexity, and the need to modernise workflows across both execution and post-trade operations. Strong likelihood of long-term extension or permanent conversion.The Role
This is a high-impact support & engineering role within a live trading and post-trade ecosystem:
Own stability and performance of production trading and post-trade systems
Drive automation across support processes (PowerShell / Python)
Troubleshoot complex issues across Windows, SQL, and integrated applications
Work closely with traders, ops, and vendors to resolve and prevent issues
Improve post-trade workflows, reconciliation, and data processing pipelines
Influence system improvements and future platform direction
Engage with vendor platforms (e.g. TT, ATEO or similar post-trade/reconciliation solutions)
What We’re Looking For
Strong PowerShell and/or Python scripting capability
Experience in trading / financial services environments
Solid Windows and SQL background
Exposure to post-trade or reconciliation platforms - Preferably Trading Technologies ATEO system or similar such as Duco, SmartStream, etc.)
Proven track record of automating and improving support functions
Comfortable in high-pressure, front-office-aligned environments
Interest or exposure to AI / LLM tooling (bonus)
Why This Role
Direct impact across trading and post-trade operations
Blend of support, automation, and engineering ownership
Exposure to AI-driven initiatives and modernisation work
Clear path to long-term role in a growing platform environment
To apply – click the link or email for a faster response
Sign in
To continue your applicationor continue with email
By continuing you agree to our Terms & Privacy Policy.
Similar jobs
Show more