Senior Network Engineer - Investment Bank, Trading System Infra

EIRE Systems partners with a major financial institution in Tokyo, to manage a dedicated infrastructure for a suite of proprietary Trading Systems.

We have a fantastic new opportunity for an experienced Senior Network Engineer (CCIE / CCNP level) for an immediate opening in this team.

The role functions as a member of a dedicated team of Network and Server specialists to manage the live environment and to engineer and implement continuous improvements as the environment grows and evolves.

We're a lean team of talented and highly experienced engineers, which offers the unique opportunity to manage the entire network infrastructure, end-to-end.

The Senior Network Engineer will :

- Represent the network team, as the senior networks SME during critical client meetings.

- Validate technical feasibility of requests coming from the client

- Review plans for changes prior to submission for change approvals.

...and function as a member of the team to:

- Support and develop the networking infrastructure. Contribute ideas regarding Network Architecture and propose technical solutions to meet the needs of the business.

- Monitor, guard and analyze the proper functioning of our network infrastructure. Take adaptive, retentive, and corrective measures and perform structural maintenance.

- Troubleshoot, diagnose, and resolve LAN/WAN problems, performance, and security issues

- Perform maintenance activities on switches and routers (Cisco Nexus, Arista, among others) and firewalls (Palo Alto, Cisco ASA); working with the team to design, plan and execute changes such as firewall settings, device replacements, configuration changes and updates/upgrades.

- Proactively improve our infrastructure by contributing scripts and code to our automation efforts.

- Contribute to Network Automation transformation, Software Defined Networking and CI/CD for zero touch deployment (Network as Code); Develop, test, present for reviews and implement approved automation solutions.

- Adhere to Network Engineering documentation standards for all changes/requests

- Create and update detailed network diagrams and reports.

Technical Requirements:

- Advanced level knowledge of layer 2 and layer 3 network designs and expertise in supporting a variety of enterprise Cisco switches and routers, preferably Cisco Nexus configuration experience. (Arista Low latency switch experience is a nice to have)

- Expertise for multiple routing protocols (BGP, EIGRP, OSPF, static routing, virtual routing)

- Demonstrated ability to identify, recommend and execute improvements in a production network environment.

- Network troubleshooting skills utilizing tcpdump or other command line packet capture tools.

- Skills and experience parsing syslog messages

- Experience setting up, configuring and supporting firewalls, preferably Cisco ASA and Palo Alto.

- Knowledge/experience designing, implementing and/or supporting New Generation Data center Network Design, e.g.: Spine-Leaf architecture (Preferred)

- Multicast - configuration experience (Preferred)

- Experience in one or more automation frameworks such as Ansible, Saltstack or Nornir (Preferred)

- Scripting skills for automating network administration tasks, preferably using Python (Preferred)

- Good understanding of Time synchronization like PTP including troubleshooting.

- Strong experience in packet analysis tools like Wireshark, Tshark etc.

- Experience in Data Center Monitoring features like SPAN, ERSPAN, Time tagging, Tap Aggregation etc.

*Applicants should be eligible to work full-time in Japan and be available to physically access the client site in Tokyo as and when required.