Senior Network Engineer

Senior Network Engineer

London Full-Time 48000 - 84000 ÂŁ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead and manage network projects while ensuring system stability and performance.
  • Company: Join a global IT team dedicated to innovative network solutions across EMEA and North America.
  • Benefits: Enjoy a full-time role with opportunities for mentorship and professional growth.
  • Why this job: Be part of a dynamic team that values collaboration and cutting-edge technology.
  • Qualifications: Extensive experience with Cisco technologies and strong communication skills are essential.
  • Other info: Willingness to work flexible hours and travel to data centers is required.

The predicted salary is between 48000 - 84000 ÂŁ per year.

Purpose of Job

  • The Senior Engineer is responsible for the technical ownership of specific elements of the organisation’s Network global platforms, providing subject matter expertise and acting as the point of escalation for any significant technical system issues.
  • The Senior Engineer leads and actively participates in the delivery of IT projects for the organisation, including technical resource management and task planning. Furthermore, they support the Network Solution Architects in defining the expected standards, policies and documentation with which to administer and maintain the platforms operationally.
  • The role requires strong cross-team and cross-region collaboration and the ongoing maintenance of the vendor relationships, at a technical level, on behalf of PD-ITSD.
  • The Senior Engineer is a key resource within the Network and Datacentre team and is responsible for the implementation and lifecycle management of a business-critical infrastructure comprised of a large Cisco, Check Point, Palo Alto, F5 and Network Monitoring enterprise estate.

Background

  • The Senior Engineer is a key resource within PD-ITSD with technical ownership of key IT systems deployed across EMEA and North America. The role requires a strong and broad technical skillset, exemplary communication skills, project management discipline and the capacity to fluidly and efficiently balance operational support and strategic project delivery requirements. The senior nature of the role necessitates technical mentorship of junior staff and knowledge transfer to other related IT teams.
  • The primary focus of the Senior Engineer is to maintain operations of existing systems whilst developing, building and deploying new IT systems and initiatives for the benefit of the organisation. The Senior Engineer is responsible for ensuring the ongoing stability and performance of the LAN, MAN and WAN networks within SMBC. The organisation has invested in software defined networking and the Senior Engineer is expected to be proficient in the support and configuration of these solutions.
  • Through close partnership with the Network Solution Architecture function the Senior Engineer realises the conceptual designs provided and then builds and operationally introduces the new technology platform/solution for the organisation. They oversee the handover to operational support colleagues and ensure that documentation is current and accurate.
  • The Senior Engineer will work in a discrete, focused team dedicated to a specific technology area but will foster core relationships with other IT teams in both EMEA and North America.

Facts / Scale

  • The Senior Engineer is part of a global IT team with ~30 members. The Network team in London comprises 6 people at present.
  • Typically leads 3+ IT projects/deployments annually.
  • Provides technical escalation for IT systems situated throughout 6 enterprise class datacentres and multiple branch sites across EMEA and North America. 5000+ client endpoints. 3000+ Servers.

Accountabilities & Responsibilities

  • Technical ownership and support of the organisation’s Network estate.
  • Assisting the Network Solution Architecture Team with ensuring that the design of the Network environment is such that it is resilient and highly available.
  • Proactively monitor and enhance the Network and Datacentre environment by ensuring alerts generated by the system are managed and progressed.
  • Ensuring that the Network environment is enrolled in the appropriate capacity management reporting systems in order to provide accurate system utilisation data.
  • Evaluate emerging security threats and action / implement patching schedules to protect the organisation’s systems against threats accordingly.
  • Assisting the Architecture and Engineer Team with managing the environment’s hardware and software life cycles, ensuring that the organisation’s systems do not become affected by end-of-life or end-of-support milestones.
  • Working with the organisation’s architecture team to recommend and scope tactical and strategic enhancements to the organisation’s IT environment, engaging 3rd party suppliers where appropriate.
  • Work closely with counterparts to develop global Network standards.
  • Ensuring all technical documentation is maintained to an appropriate level and reflects the as installed environment.
  • Integrate automated processes where relevant and appropriate.
  • Managing and developing collaborative relationships with other groups within the IT division, locally and globally.
  • Act as the point of escalation for out-of-hours issues in the area of expertise.
  • Mentor junior members of the team.
  • Undertaking other reasonable tasks at the discretion of the Network and Datacentre Lead and head of the section.
  • Preparedness to work unsociable hours and weekends and be contactable when away from the office.
  • Undertake visits to Datacentre locations in order to support underlying technologies.
  • Participate in the on-call rota for Network Support.
  • Ongoing development of technical skills pertinent to role.
  • Adhere to the policies and procedures of the organisation.

Knowledge, Skills, Experience & Qualifications

Knowledge

  • Detailed understanding of TCP/IP Networking.
  • Extensive knowledge of IP routing (Static and dynamic) especially BGP routing.
  • Excellent knowledge of L2 technologies (STP, LACP, LLDP, etc.).
  • Detailed knowledge of IPv4 and IPv6 addressing.
  • A very good understanding of network security concepts and how these can be applied to network infrastructure.
  • Detailed knowledge of firewall operation, configuration and deployment.
  • Detailed knowledge of network infrastructure protocols (DNS, DHCP, etc.).
  • Any knowledge of cloud connectivity would be an advantage.
  • Good knowledge of software defined networking concepts.
  • Excellent communication skills especially the ability to communicate with non-IT staff within the bank.
  • In addition to the above, clear evidence of a passion for technology.
  • A willingness and track record of learning new technologies.

Skills

  • Extensive experience of the configuration of network equipment (preferably Cisco).
  • Extensive experience of troubleshooting issues on large network environments.
  • Configuration and management of complex Firewall environments.
  • A record of working on large Network related projects including planning and deployment.
  • Experience of working with Architecture teams to transition network designs into production deployments. Ensuring that operational support procedures are in place.
  • Experience of managing network related Vendors.
  • A track record of mentoring more junior staff, both onshore and offshore.

Experience and Qualifications

  • Extensive experience of working with Cisco networking technologies and solutions.
  • Cisco Certifications, CCNA, CCNP, CCIE.
  • Experience of configuring and supporting Cisco ACI.
  • Experience of configuring and supporting Cisco SD-Access.
  • Experience of Checkpoint Firewalls. Checkpoint certifications, CCSA.
  • Experience of Palo Alto Firewalls.
  • A good understanding of F5 Load Balancers or experience with other Load Balancing solutions.
  • Experience of working with Forescout or an alternative Network Access Control product.
  • ITIL Foundation.
  • Experience of working with IT Security teams to deliver Security related projects.
  • Team Leadership (ie mentoring junior staff) and/or Project Management (as an example managing the Network stream of a project) would be beneficial.

Personal Characteristics

  • An individual with excellent written, verbal and interpersonal communication skills who can communicate effectively with end users, peers across the IT function and direct management.
  • A dependable self-starter who can take appropriate action with minimal direction.
  • An individual who can leverage project management methodologies and effectively manage multiple projects and tasks.
  • A customer focused individual, who is flexible and eager to take ownership of issues and projects.
  • An individual who demonstrates a consistent and meticulous attention to detail.
  • An individual who demonstrates an effective professional presence and impact.
  • An individual who can work under pressure to resolve issues and maintain a positive outlook.
  • An individual who can work collaboratively with multiple support teams on emerging issues.

Seniority level

  • Mid-Senior level

Employment type

  • Full-time

Job function

  • Information Technology

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Senior Network Engineer employer: Sumitomo Mitsui Financial Group Inc.

At our organization, we pride ourselves on being an exceptional employer, offering a dynamic work environment that fosters collaboration and innovation. As a Senior Network Engineer, you will have the opportunity to lead impactful IT projects while benefiting from a culture that emphasizes professional growth and mentorship. Located in London, you'll be part of a global team that values diversity and provides access to cutting-edge technologies, ensuring your skills are continuously developed in a supportive atmosphere.
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Contact Detail:

Sumitomo Mitsui Financial Group Inc. Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Network Engineer

✨Tip Number 1

Make sure to showcase your extensive experience with Cisco networking technologies. Highlight specific projects where you've configured and managed Cisco equipment, as this is crucial for the Senior Network Engineer role.

✨Tip Number 2

Demonstrate your ability to mentor junior staff by sharing examples of how you've supported and guided less experienced team members in previous roles. This will show that you can contribute to the team's growth.

✨Tip Number 3

Emphasize your project management skills by discussing any large network-related projects you've led or participated in. Detail your role in planning and deployment to illustrate your capability in managing complex tasks.

✨Tip Number 4

Highlight your communication skills, especially your ability to convey technical concepts to non-IT staff. This is essential for collaborating across teams and ensuring everyone is on the same page.

We think you need these skills to ace Senior Network Engineer

TCP/IP Networking
IP Routing (Static and Dynamic, especially BGP)
L2 Technologies (STP, LACP, LLDP)
IPv4 and IPv6 Addressing
Network Security Concepts
Firewall Operation, Configuration and Deployment
Network Infrastructure Protocols (DNS, DHCP)
Cloud Connectivity Knowledge
Software Defined Networking Concepts
Cisco Networking Technologies and Solutions
Configuration of Network Equipment (preferably Cisco)
Troubleshooting Large Network Environments
Complex Firewall Environment Management
Vendor Management
Mentoring Junior Staff
Cisco Certifications (CCNA, CCNP, CCIE)
Checkpoint Firewalls and Certifications (CCSA)
Palo Alto Firewalls
F5 Load Balancers or Other Load Balancing Solutions
ITIL Foundation
Project Management Skills
Excellent Communication Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your extensive experience with Cisco networking technologies and solutions, as well as any relevant certifications like CCNA, CCNP, or CCIE. Emphasize your project management skills and experience in mentoring junior staff.

Craft a Strong Cover Letter: In your cover letter, express your passion for technology and your ability to communicate effectively with both technical and non-technical stakeholders. Mention specific projects where you have successfully managed network-related tasks or collaborated with architecture teams.

Showcase Technical Skills: Clearly outline your technical skills related to TCP/IP networking, IP routing, firewall operation, and software-defined networking. Provide examples of how you've applied these skills in previous roles, especially in large network environments.

Highlight Collaboration Experience: Since the role requires strong cross-team collaboration, include examples of how you've worked with different IT teams or vendors. Discuss any experience you have in managing vendor relationships and how you’ve contributed to global network standards.

How to prepare for a job interview at Sumitomo Mitsui Financial Group Inc.

✨Showcase Your Technical Expertise

Be prepared to discuss your extensive knowledge of TCP/IP networking, IP routing, and firewall operations. Highlight specific projects where you've successfully implemented or troubleshot network solutions, especially with Cisco technologies.

✨Demonstrate Project Management Skills

Since the role involves leading IT projects, share examples of how you've managed complex network deployments. Discuss your experience in planning, resource management, and ensuring operational support procedures are in place.

✨Emphasize Communication Abilities

The position requires excellent communication skills, especially with non-IT staff. Prepare to explain how you've effectively communicated technical concepts to diverse audiences and collaborated with cross-functional teams.

✨Prepare for Scenario-Based Questions

Expect questions that assess your problem-solving abilities in real-world scenarios. Think about past challenges you've faced in network management and how you approached them, particularly in high-pressure situations.

Senior Network Engineer
Sumitomo Mitsui Financial Group Inc.
S
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