Senior Network Engineer

Senior Network Engineer | Global hedge fund | London, 3 days onsite | inside IR35

When the network is the trading platform, every millisecond and every change counts. We’re looking for a senior engineer who can own it, automate it and keep it fast.

The essentials

Location: Central London, 3 days a week in the office

Start: immediate

Who you’ll be working for

A global hedge fund with a systematic trading business that runs around the clock. Technology is central to how they make money, and they hold their engineers to a high standard. The network team is expanding its global footprint, and this hire will be a senior voice within it.

Where you’ll make an impact

• Taking ownership of a global network spanning data centres, offices and the cloud
• Keeping trading connectivity fast, resilient and stable under pressure
• Stepping in to lead when incidents hit, and fixing root causes, not symptoms
• Replacing manual network change with Python and Ansible automation
• Working closely with engineering teams worldwide and helping develop less experienced engineers

What you’ll bring

• A solid track record in enterprise or data centre networking, typically 7+ years
• Routing expertise, especially BGP and OSPF, well beyond the basics
• Hands-on security tooling experience with Palo Alto firewalls and Zscaler
• Automation you’ve actually shipped, using Python, Ansible or both
• Calm, methodical troubleshooting in environments where downtime is not an option
• Time in a hedge fund, bank, exchange or electronic trading firm
• Experience with low-latency design, multicast or market data feeds
• AWS networking, particularly Transit Gateway and Direct Connect
• Working within a follow-the-sun support model

Entasis Partners is an equal opportunities employer. We welcome applications from everyone and will make reasonable adjustments on request.