Network Engineer | London

Network Engineer | Financial Services | London, Hybrid

Our client is a globally recognised firm with offices across major financial centres.

Their London office is a strategic hub supporting global operations. They foster a culture of innovation, agility, and excellence, and we’re looking for a rising star in network engineering to join their infrastructure team.

Role Overview

The firm is looking for a Network Engineer who’s passionate about designing, implementing, and maintaining secure and scalable network solutions.

You’ll be part of a small, high-performing infrastructure team, supporting the firm’s critical operations across trading, investment, and corporate systems.

This is not a “maintenance-only” role, it’s hands-on, creative, and strategic.

You’ll be involved in design discussions, process improvement, and ensuring the firm’s network infrastructure evolves alongside new technologies and business needs.

?London-based

?Permanent Role

?Competitive Salary + Benefits package

Key Responsibilities

• Design, configure, and maintain the firm’s network infrastructure (LAN/WAN/Wi-Fi, firewalls, VPN, routing, and switching).
• Support and enhance voice and video systems (Zoom, Teams, Cisco, etc.).
• Collaborate with the systems and cloud teams to optimise virtualised network environments (VMware, Azure, or similar).
• Participate in the network design process, offering innovative, scalable solutions to support business growth.
• Troubleshoot complex network issues quickly and effectively, maintaining minimal downtime.
• Ensure compliance with security standards and assist with network monitoring and incident response.
• Contribute to documentation, process improvements, and best practice development.

Required Experience & Qualifications

• Proven experience in a mid-sized company environment (approx. 200–500 users).
• CCIE certified or working toward CCIE – strong understanding of Cisco technologies.
• Exposure to network design and architecture principles.
• Experience in professional services environments such as investment banking, legal, or consultancy firms.
• A strong desire to learn, grow, and take ownership within a collaborative, forward-thinking team.

Hands-on experience with:

• Routing and switching (Cisco preferred)
• Firewalls (Palo Alto, Fortinet, or Cisco ASA)
• VPN, SD-WAN, and network segmentation
• Zoom and voice systems integration
• Virtual infrastructure (VMware, Hyper-V, Azure networking)

Ideal Candidate Profile

• You’re an ambitious and detail-oriented Network Engineer with a balance of hands-on technical skill and strategic curiosity.
• You’ve cut your teeth in a professional environment, enjoy problem-solving under pressure, and want to grow into a senior engineering role where your ideas and initiative are valued.

What's on Offer

• Opportunity to work in a prestigious global investment firm with cutting-edge technology.
• Clear career progression and development pathways.
• Competitive compensation and global benefits package.
• Collaborative and inclusive team culture.

If you are interested in this Network Engineer role, please respond to this advert directly with your updated CV or email it to chantelle.smith@sourcegroupinternational.com