Production Engineer (HFT)

TechShack; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

TechShack is seeking a backend engineer to join the team behind the trade systems. You will work on production Python code, ETL pipelines, deployment tooling and data quality frameworks, while also running the firm's on-prem Linux estate, monitoring and pager rotation.

Trading-focused environment with a small team close to the users; a background in trading is preferred but not required, making this a role centered on building reliable, low-downtime systems rather than scripting.

Qualifications

• Shipped Python into production.
• Experience running systems where downtime is costly.
• Experience with on-prem infrastructure.
• Familiar with containerisation, configuration management and infrastructure as code.
• Experience with mid/back office systems is helpful.

Responsibilities

• Hands-on Python within internal apps, ETL, data pipelines, deployment tooling and CI/CD.
• Run the on-prem Linux estate, monitoring and pager rotation.
• Collaborate closely with internal users who rely on the build.

Skills

Python production

System reliability

Containerised workloads

Infrastructure as code

Monitoring & alerting

On-prem infrastructure

Job description

We're working with a proprietary trading firm, trading its own capital in the most competitive traditional markets for over a decade. Colocated infra with FPGAs handling market data decode and order entry.

The seat

You would join the team that covers everything behind the trade: the books and P&L, the risk numbers the desk trades against, position keeping, and daily reporting.

Half the role is hands-on Python - internal applications, ETL and data pipelines, deployment tooling and CI/CD, and reconciliation and data quality frameworks. This is genuine building, not scripting. The other half is running the estate: their own on-prem Linux, monitoring and alerting, and a pager rotation.

A trading background is preferred, but not required. Recent engineering hires came from outside the industry. Exchanges, clearing houses, banks and payments all count.

What you will want on your CV

• Python you have shipped into production
• Time spent running systems where downtime is expensive
• On-prem infrastructure rather than cloud consoles alone
• Containerised workloads, configuration management and infrastructure as code
• Mid or back office systems - P&L, positions, reconciliation - useful, not essential

Why them

Small firm and team. Sat close to the people who use what you build daily.