Senior Network Engineer

We are seeking a highly skilled and hands-on Senior Network Engineer to join our Enterprise Network Services team with 8 years+ experience. This role is responsible for deploying and supporting critical network infrastructure across both internal enterprise environments and external customer-facing platforms. The ideal candidate will have extensive experience planning and executing critical network security and infrastructure patch rollouts in fast-paced, highly regulated, and uptime-sensitive environments.

The role requires deep expertise in routing, switching, data centre networking, internet connectivity, network security, and production change management, preferably in a Financial Services Firm. The successful candidate will demonstrate a strong track record of executing complex infrastructure changes with minimal risk, maintaining network resiliency, and supporting business-critical services operating in 24x7 global environments. The ability to work both independently and as a team member is essential.

In the Technology division, we leverage innovation to build the connections and capabilities that power our Firm, enabling our clients and colleagues to redefine markets and shape the future of our communities. This is an Infrastructure Production Management & Reliability Engineering position at Director level, which is part of the job family responsible for maintaining the stability and reliability of the organization's infrastructure systems, ensuring optimal performance and availability to support business operations.

What you’ll do in the role:

• Implement, and support enterprise-scale network infrastructure across data centres, campus and branch environments.
• Provide Tier-3 support and technical leadership during major incidents and escalations.
• Develop and maintain network standards, update documentation, and engineering procedures.
• Lead planning, testing, risk assessment, and deployment of critical security and infrastructure patches across production environments, ensuring timely rollout with zero unplanned outages.
• Drive execution of complex, large-scale maintenance activities across global environments with minimal customer or business impact.
• Coordinate maintenance windows, rollback plans, validation testing, and post-implementation reviews.
• Ensure compliance with security, audit, and regulatory requirements through timely remediation of vulnerabilities.
• Partner with Security, Infrastructure, Application, and Operations teams to prioritize remediation activities and maintain resilient business services.
• Coordinate end-to-end remediation activities including maintenance windows and pre/post validations across multiple stakeholders, including business application owners, multiple infrastructure teams (Unix, Load Balancer, Firewall etc), security teams, and all relevant third-party vendors (Cisco/Arista etc).
• Maintain high availability and resilience of business-critical services while improving network reliability and security posture.
• Monitor network performance and proactively identify risks before they impact production.
• Develop automation solutions using Python, Ansible, or similar tools to improve operational and deployment efficiency.
• Standardize deployment procedures and reduce manual intervention through automation to lower operational risk.
• Drive operational excellence through continuous process improvement and infrastructure optimization.

What you’ll bring to the role:

• Strong hands-on experience with Leaf-Spine Architectures across Cisco and Arista Platforms.
• Ethernet technologies: STP, 802.1Q, VPC, Multilayer Switching.
• IP Routing protocols: RIP, OSPF, BGP, MPBGP, TCP/IP.
• VxLAN.
• Platform knowledge on Cisco Switching & Routing Platforms.
• Platform Knowledge on Arista Switching platforms.
• Wireshark, Infoblox, HPNA, Splunk, Sevone is a plus.
• Good to have some cloud and wireless knowledge.
• Familiarity with JIRA for project and task management, specifically work in Agile.
• Ansible, Python, Terraform, Github.
• At least 8 + years’ relevant experience.
• Proven experience executing critical security patching and production network upgrades in large-scale environments - global data centres and branch sites.
• Experience operating in financial services, trading, telecommunications, cloud, or other mission-critical environments.
• Demonstrated ability to perform complex maintenance and migration activities during scheduled change windows.
• Strong understanding of network resiliency, high availability, and disaster recovery principles.
• Willingness to support weekend implementations, emergency changes, and critical incident response when required.
• Preferred CCNP, CCIE, or equivalent industry certifications.
• Preferred knowledge of network automation frameworks.

Morgan Stanley is an equal opportunity employer committed to building and maintaining a workforce that is diverse in experience and background. Our recruiting efforts reflect our strong commitment to a culture of inclusion, where individuals are hired, developed, and advanced based on their skills and talents.