Network Manager in London

Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges.

The group provides access to the world’s major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 3,000 employees across Europe, Asia and the Americas.

The Technology Department delivers differentiation, scalability and security for the business. Technology provides digital tools, software services and infrastructure globally to all business groups. Software development and support teams work in agile ‘streams’ aligned to specific business areas. Our other teams work enterprise-wide to provide critical services including our global service desk, network and system infrastructure, IT operations, security, enterprise architecture and design.

The Network Team is responsible for the overall IT network of the company. The Network Team is central to the success of the organisation and works with our IT teams across the globe to monitor and maintain the network systems to ensure maximum uptime and service delivery to the business.

Role Summary

The network team is responsible for designing, building, and operating our global network infrastructure that connects our offices, data centres, cloud environments, and remote users. They ensure secure, reliable, and high-performing connectivity to support the needs of our rapidly growing business. We're looking for an experienced Network Manager to lead our network team. This role combines hands-on leadership with strategic direction, overseeing the stability, performance, and evolution of our enterprise network. You’ll be responsible for running a reliable and secure global network, while also driving the adoption of modern solutions and using automation and AI. You’ll lead a globally distributed team, support acquisition integrations, and help ensure that our infrastructure scales with the business.

Responsibilities

• Lead a global team of network engineers, providing direction, mentorship, and performance management.
• Own the end-to-end operation and stability of the global enterprise network, across data centres, cloud, offices and remote users.
• Develop and implement strategies to ensure high network availability, reliability, and performance.
• Oversee and optimise network operations, including incident response, change management, monitoring, and proactive maintenance.
• Architect and maintain a scalable, secure, and modern network.
• Improve observability by leveraging tools for performance monitoring, fault detection, and root cause analysis.
• Collaborate closely with security and infrastructure teams to ensure alignment and integration across platforms.
• Contribute to capacity planning, scalability initiatives, and disaster recovery strategies to ensure future-proof infrastructure.
• Support M&A integrations, including discovery, planning, and execution of network consolidation and onboarding strategies for newly acquired companies.
• Standardise network tools, policies, and configurations across acquired entities to meet enterprise standards.
• Manage the relationships with Network vendors, manage renewals and identify cost/value optimisation initiatives that meet the organisation’s objectives.
• Continuously improve network processes and capabilities through automation, documentation, and cross-functional collaboration.
• Serve as a key escalation point during critical incidents and participate in post-incident reviews with actionable outcomes.
• Project network consultancy for different lines of business for new technical network requirements.
• Ensure network projects are delivered on time and on budget.
• Resource planning and allocation to ensure priorities are met.
• Track and manage the overall Network budget.
• Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with.

All staff:

• Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with.
• Role model for demonstrating highest level standards of integrity and conduct and reflecting Company Values.
• At all times comply with the Marex’s Code of Conduct.
• Ensure that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility.
• Report any breaches of policy to Compliance and/or your supervisor as required.
• Escalate risk events immediately.
• Provide input to risk management processes, as required.

Competencies, Skills, Experience & Qualifications:

Skills and Experience:

• Team Management and Leadership Experience (minimum 5 years).
• Previous experience of working in the finance industry.
• Proven experience in designing, implementing, and managing large-scale networks.
• Strong understanding of cybersecurity principles and practices related to networks.
• Project management skills from inception to delivery.
• Experience with global rollout of SASE, SSE solutions, Prisma Access, Zscaler.
• Cloud network design and implementation, AWS, Azure.
• Network automation, Infrastructure-as-code, Ansible.
• NextGen Layer 7 firewalling, User-ID, SSL decryption, Network Access Control.
• Relevant product Knowledge and Industry Experience – Palo Alto, Cisco, Arista and Juniper, Aruba (WIFI/Clearpass NAC).
• Understanding of WAN technologies: MPLS, IPSEC VPN, SD-WAN, QOS, NAT.
• Routing and Switching protocols: BGP, OSPF, EIGRP, WIFI, VLAN, Multicast.
• WAN/Campus LAN network design and implementation.
• Internet, Firewall and DMZ design and implementation.
• Understanding of different exchange connectivity (e.g. CME, SGX, ICE, Eurex, LME).
• Experience working in a global organisation with distributed teams.
• Use Agile methodologies, Scrum or Kanban.
• ITIL v4 beneficial.

Competencies:

• Resilient in a challenging, fast-paced environment.
• Strategic visionary with tactical thinking.
• Collaborative leader who thrives in a team-oriented environment.
• Passionate about technology and innovation, with a commitment to staying ahead of industry trends.
• Strong organisational skills, with the ability to manage multiple priorities and projects simultaneously.
• Strong Oral and Written Communication Skills.
• Strong attention to detail and a focus on delivering high-quality results.

Conduct Rules, You must:

• Act with integrity.
• Act with due skill, care and diligence.
• Be open and cooperative with the FCA, the PRA and other regulators.
• Pay due regard to the interests of customers and treat them fairly.
• Observe proper standard of market conduct.
• Act to deliver good outcomes for retail customers.

Company Values

• Respect - Clients are at the heart of our business, with superior execution and superb client service the foundation of the firm. We respect our clients and always treat them fairly.
• Integrity - Doing business the right way is the only way. We hold ourselves to a high ethical standard in everything we do – our clients expect this and we demand it of ourselves.
• Collaborative - We work in teams - open and direct communication and the willingness to work hard and collaboratively are the basis for effective teamwork.
• Developing our People - Our people are the basis of our competitive advantage. We look to “grow our own” and make Marex the place ambitious, hardworking, talented people choose to build their careers.
• Adaptable and Nimble - Our size and flexibility is an advantage. We are big enough to support our client’s various needs, and adaptable and nimble enough to respond quickly to changing conditions or requirements.

Marex is fully committed to being an inclusive employer and providing an inclusive and accessible recruitment process for all. We will provide reasonable adjustments to remove any disadvantage to you being considered for this role. We value the differences that a diverse workforce brings to the company. We welcome applications from candidates returning to the workforce.