Staff Network Engineer

Visa; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Visa is seeking a Staff Network Engineer in London to shape the technical direction of enterprise WAN, LAN, wireless, and secure-connectivity.

You will lead architecture reviews, design standards, and incident response, partnering with Security, Operations, Architecture, and vendors to deliver scalable, reliable networks.

This senior role emphasizes autonomy, mentoring, and cross‑functional collaboration to drive observability, automation, and long‑term technology outcomes.

Qualifications

• Extensive experience designing enterprise WAN/LAN and secure connectivity.
• Proven leadership in architecture and cross-functional collaboration.
• Strong incident response, RCA, and automation skills.

Responsibilities

• Provide technical direction for enterprise WAN, LAN, wireless, remote-access, and secure-connectivity solutions.
• Lead the design and technical delivery of the organization's most complex, high-risk, or enterprise-scale network initiatives from requirements and architecture through implementation and operational acceptance.
• Influence and develop network architecture principles, reference patterns, design standards, and reusable engineering practices in partnership with Architecture, Security, Operations, and other technology teams.
• Produce and govern high-level and low-level network designs, technical decision records, implementation strategies, resiliency requirements, and supportability criteria.
• Lead technical-design reviews and ensure solutions address reliability, scalability, capacity, security, observability, automation, and lifecycle requirements.
• Assess network performance, capacity, resiliency, and technical debt and provide strategic recommendations.
• Lead root-cause analysis for significant network events and ensure corrective actions address gaps.

Skills

Network design

WAN

LAN

Wireless networks

Network security

Python

Leadership

Education

Bachelor's degree in Computer Science or related

Tools

Network automation tools

Observability tools

Job description

About Us

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

At Visa, you'll have the opportunity to create impact at scale - tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.

Join Visa and do work that matters - to you, to your community, and to the world. Progress starts with you.

Job Description

Role Overview

The Staff Network Engineer is a senior individual contributor responsible for the technical direction, architecture guidance, design governance, implementation oversight, and operational support of enterprise WAN, LAN, wireless, and secure-connectivity solutions within a corporate network environment.

This role provides technical leadership for the organization's highest-complexity and enterprise-scale network initiatives. The Staff Network Engineer influences architecture, reference patterns, engineering standards, and technology roadmaps; provides end-to-end technical oversight across engineering, security, project, operations, and vendor teams; and serves as a senior escalation point for complex cross-domain issues.

The Staff Network Engineer operates with a high degree of autonomy and uses technical influence, mentoring, and engineering leadership to improve network reliability, security, scalability, operational supportability, and long-term technology outcomes.

Key Responsibilities

Network Design & Implementation

• Provide technical direction for enterprise WAN, LAN, wireless, remote-access, and secure-connectivity solutions.
• Lead the design and technical delivery of the organization's most complex, high-risk, or enterprise-scale network initiatives from requirements and architecture through implementation and operational acceptance.
• Influence and develop network architecture principles, reference patterns, design standards, and reusable engineering practices in partnership with Architecture, Security, Operations, and other technology teams.
• Produce and govern high-level and low-level network designs, technical decision records, implementation strategies, resiliency requirements, and supportability criteria.
• Lead technical-design reviews and ensure solutions appropriately address reliability, scalability, capacity, security, observability, automation, and lifecycle requirements.
• Assess network performance, capacity, resiliency, and technical debt and provide strategic recommendations supporting current and long-term business requirements.
• Evaluate emerging network technologies and determine their potential applicability, benefits, risks, dependencies, and operational impact.
• Provide technical oversight for design validation, testing, implementation readiness, rollback planning, and operational handoff.

Operations & Advanced Support

• Serve as a senior engineering escalation point for highly complex, cross-domain, recurring, or business-critical network incidents.
• Lead root-cause analysis for significant network events and ensure corrective actions address systemic technical, process, monitoring, or supportability gaps.
• Provide technical direction during major incidents and coordinate engineering analysis across internal teams, vendors, and service providers.
• Establish expectations for network observability, operational readiness, troubleshooting procedures, resiliency testing, and support documentation.
• Analyze incident, problem, performance, and capacity trends to identify systemic risks and prioritize engineering improvements.

Security & Compliance

• Provide senior technical guidance to ensure security and compliance requirements are incorporated into network architectures, standards, and major initiatives.
• Lead technical analysis and remediation planning for significant network vulnerabilities, security events, and control gaps.
• Evaluate proposed designs for security, resiliency, operational risk, and control effectiveness and recommend required improvements.
• Promote secure-by-design practices throughout the network-engineering lifecycle.

Vendor & Stakeholder Collaboration

• Provide senior technical direction to vendors and service providers and evaluate proposed products, designs, implementation approaches, and corrective actions.
• Provide technical leadership across Project Management, Account Management, Security, Network Operations, Enterprise Architecture, application teams, vendors, and service providers.
• Communicate complex technical risks, decisions, tradeoffs, and recommendations clearly to technical and nontechnical stakeholders.

Continuous Improvement & Automation

• Define and advance technical practices for Python, network automation, configuration validation, testing, and operational analytics.
• Lead the development and adoption of reusable automation frameworks, engineering templates, validat