At a Glance
- Tasks: Support and optimise trading systems while driving automation and troubleshooting complex issues.
- Company: Dynamic fintech company in Central London with a focus on innovation.
- Benefits: Competitive daily rate, hybrid work model, and potential for permanent role.
- Other info: Opportunity for career growth and exposure to AI-driven initiatives.
- Why this job: Make a direct impact in a fast-paced trading environment with cutting-edge technology.
- Qualifications: Strong PowerShell/Python skills and experience in financial services.
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
- 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 Barry.Ansell@HarringtonStarr.com for a faster response.
Support Engineer, Application Support Engineer, SQL Server in London employer: Harrington Starr
As a leading player in the fintech sector, our company offers an exceptional work environment that fosters innovation and growth. With a strong focus on automation and next-gen tooling, employees are empowered to take ownership of their roles while collaborating closely with traders and operations in a dynamic, high-pressure setting. Located in the heart of London, we provide ample opportunities for professional development and a clear pathway to long-term career advancement, making us an attractive employer for those seeking meaningful and rewarding employment.
