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# Application Support Engineer

- **Company:** Harrington Starr
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Artificial Intelligence, Python (Programming Language), Windows PowerShell, SQL Databases, Scripting, Large Language Models, Data Pipelines
- **Published:** August 30, 2026
- **Apply:** https://www.collegerecruiter.com/job/2815448629-application-support-engineer

## About the Role

* 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)

## Description

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)


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