Senior Network and Security Engineer

CMC Markets Plc; Greater London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading financial services provider in Greater London seeks an experienced Senior Network and Security Engineer to join their Technology team. This crucial role involves designing, building, and supporting high-performance network infrastructure with a focus on resilience and security. Key responsibilities include ensuring effective network services and troubleshooting issues. Essential skills include strong Cisco ACI knowledge and CCNP certification. The ideal candidate thrives in high-stakes environments, making this an exciting opportunity to make a significant impact.

Qualifications

• Strong experience operating and troubleshooting Cisco ACI environments.
• Hands-on experience with multicast networking.
• CCNP-level networking knowledge or certification required.

Responsibilities

• Design, implement and maintain global LAN, WAN and cloud network infrastructure.
• Implement new network services aligning with internal policies and security requirements.
• Monitor network performance, providing proactive support and troubleshooting.

Skills

Cisco ACI environments

multicast networking

CCNP-level networking knowledge

designing and building data centre and cloud networks

Cisco Catalyst and Nexus switch platforms

documentation skills

stakeholder engagement

Tools

Cisco ASA

Palo Alto firewalls

Meraki Wireless

Job description

Senior Network and Security Engineer page is loaded## Senior Network and Security Engineerlocations: Londontime type: Full timeposted on: Posted Todayjob requisition id: CMC5085CMC Markets is looking for an experienced Senior Network & Security Engineer to join our Technology team. This role plays a key part in designing, building and supporting our global network infrastructure, ensuring high performance, resilience and security across on-premise and cloud environments.You will work across both project delivery and business-as-usual operations, supporting critical trading platforms in a fast-paced, regulated environment.### ### Key Responsibilities* Design, implement and maintain CMC Markets’ global LAN, WAN and cloud network infrastructure* Deliver network engineering and design for new initiatives, alongside ongoing BAU growth and optimisation* Monitor network performance, capacity and availability, providing proactive support and troubleshooting* Implement new network services in line with internal policies, standards and security requirements* Identify, advise on and remediate network and security risks* Maintain secure VPN connectivity with external partners, ensuring alignment with current best practices* Perform BAU changes and troubleshooting on Palo Alto and Cisco ASA firewalls* Lead investigation and resolution of network and security incidents* Collaborate closely with internal technology teams to resolve connectivity issues* Maintain accurate technical documentation and diagrams* Ensure all work is delivered in line with CMC Markets’ policies, procedures and compliance obligations### **Skills & Experience****Essential*** Strong experience operating and troubleshooting Cisco ACI environments* Hands-on experience with multicast networking* CCNP-level networking knowledge or certification* Proven experience designing and building data centre and cloud networks* Solid knowledge of Cisco Catalyst and Nexus switch platforms* Excellent documentation, communication and stakeholder engagement skills**Desirable*** Experience supporting Market Data network feeds* Exposure to SD-WAN technologies* Experience supporting low-latency production networks within trading or financial services environments* Experience with Cisco ASA and Meraki Wireless* Hands-on experience with Palo Alto firewallsAt CMC Markets, you’ll work with cutting-edge technology in a collaborative environment where reliability, security and performance are critical. If you’re passionate about networking and thrive in complex, high-availability environments, we’d love to hear from you.CMC Markets is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of gender, sexual orientation, marital or civil partner status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age.CMC Markets is one of the world’s first ever fin-tech companies and was launched in 1989 to break down the barriers of financial trading and make trading accessible to everyone.Our mission is to use our award-winning, Next Generation trading platform and unparalleled client service to empower millions of people to have the best trading experience out there. Our clients can trade on thousands of instruments using the best technology, supported by sophisticated charting, competitive pricing and automated execution. We're trusted by investors globally, but also by banks, brokers, funds and trading desks though our top-tier liquidity institutional offering, enabling these businesses to expand into new markets and increase revenue potential. We were recently listed on the FTSE250, and our business continues to go from strength to strength as we continue to invest in our technology and our people.