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Senior Network Engineer - IT Infra Global - London

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TikTok

2mo ago

  • Job
    Full-time
    Senior Level
  • Software Engineering
    IT & Cybersecurity
  • London
    Remote

AI generated summary

  • You must have 5+ years in networking, expertise in WAN, BGP, Cisco/SD-WAN, firewall design, scripting skills, and relevant certifications. Strong leadership and DDoS experience are essential.
  • You will design network infrastructure, ensure security compliance, manage vendors, mentor team members, automate solutions, and handle escalations during outages while documenting processes.

Requirements

  • 5+ years combined experience with networking, firewall, standards, certification testing, design life-cycle and documentation.
  • In-depth experience and understanding of WAN, ISP peering, BGP, QoS, IPv4/IPv6, DNS/DHCP, firewalls, wireless and L2 switching.
  • Experience with Cisco, Fortinet and Velocloud SDWAN design, troubleshooting and deployment.
  • Must have design and deployment experience with Cisco routing and switch products and beneficial to have Cisco 802.1x wired/wireless, Aruba Wireless.
  • On-call rotation and occasional domestic and international travel will be necessary.
  • Strong technical leadership, teamwork, collaboration and communication skills.
  • Must have automation/scripting skills - proficiency in Python, Ansible or Terraform.
  • Cisco and Palo Alto Certifications: CCNP, CCDP, CCIE, PCSNE.
  • Zero trust proxy solutions.
  • Hybrid data center and multi-cloud routing.
  • Experience with DDoS protection and mitigation.
  • Hamina or Ekahau wifi survey and design.
  • Experience with Fortinet, Ruijie, Palo Alto, and Juniper Firewall.

Responsibilities

  • Develop standards-based network designs for the company's office and backbone infrastructure.
  • Delivery of robust and comprehensive design documentation, incorporating best practices which address disaster recovery, incorporate test / compliance cycles and ensure as-build deployments meet design specs.
  • Familiarity with design and deployment of controller based WLAN architecture, as well as cloud-based/controller-less enterprise WiFi solutions; experience with WiFi planning, post-install verification testing and user experience monitoring / modeling.
  • Experience with network security, authentication and identity for wired and wireless 802.1X clients; Preferred background with Cisco ISE (Identity Services Engine).
  • Evaluate new products, features and technologies which improve service availability and reduce costs, while providing comprehensive analysis and detailed implementation recommendations.
  • Drive an embedded and pervasive security model into all aspects of network and voice infrastructure, site / backbone interconnectivity and to partner managed sites.
  • Perform as Tier 3 escalation in support of IT operational organization during complex highly impactful outages that can cross multiple functional domains, involving chronic recurring problems, vendor product bugs and other critical network functionality.
  • Participate in following the sun on-call rotation.
  • Vendor Management - maintain relationships with major product manufacturers and service providers, understanding product capability and placement; driving QBR content/direction and influencing service and product capabilities and roadmaps.
  • Produce quality detailed documentation through the entire project delivery life-cycle and lead by example producing best-in-class design, deployment and operational documentation to cover all aspects of infrastructure systems ... from architecture, topology, support models, maintenance, troubleshooting runbooks, deployment cookbooks, disaster recovery, technotes, testing, etc.
  • Automation - Drive simple and scalable approach to new technology solutions using automation to enable the organization to easily deploy and operate new features, capabilities and functionality.
  • Coach, mentor, and motivate team members and contractors, providing positive career and personal growth.
  • Capacity Management - Drive development of capacity planning model and tools, including ownership of decisions regarding upgrade planning and contract negotiations.
  • Working globally - Ability to work effectively as a regional/remote team member, owning tasks to completion and socializing across team(s) to gain feedback.
  • Set, own and continually manage technology project expectations with team members and stakeholders.
  • Assist with identifying and screening future team members.

FAQs

What is the primary responsibility of the Senior Network Engineer in this role?

The primary responsibility is to establish design solutions, standards, documentation, and tools to improve the Bytedance network infrastructure, enhancing reliability, quality, and user experience across various services.

What are the qualifications required for this position?

Candidates must have a minimum of 5+ years of experience with networking, firewalls, standards, certification testing, and design life-cycle documentation, along with in-depth knowledge of WAN, ISP peering, BGP, QoS, and related technologies.

Is experience with specific technologies preferred for this job?

Yes, preferred experience includes familiarity with Cisco, Fortinet, Velocloud SDWAN, automation/scripting skills (Python, Ansible, Terraform), and cybersecurity solutions.

Will the Senior Network Engineer need to participate in on-call rotations?

Yes, the role requires participation in an on-call rotation, as well as occasional domestic and international travel.

What types of networking architecture should the candidate be familiar with?

The candidate should be experienced in designing and deploying LAN, WAN, WiFi, firewall, and VPN solutions across global office and backbone infrastructure.

How will the Senior Network Engineer contribute to security within the network infrastructure?

The engineer will drive an embedded and pervasive security model into all aspects of the network and voice infrastructure and will evaluate new products and features to improve service availability and security.

Is there an opportunity for mentorship in this position?

Yes, the role includes responsibilities for coaching, mentoring, and motivating team members and contractors.

What kind of documentation is expected from the Senior Network Engineer?

The engineer is expected to produce robust design documentation that incorporates best practices for disaster recovery, testing, compliance, and as-built deployments.

What specific certifications are preferred for this role?

Preferred certifications include Cisco and Palo Alto Certifications such as CCNP, CCDP, CCIE, and PCSNE.

What is the work culture like at TikTok?

TikTok fosters an inclusive environment that values curiosity, humility, and a team-driven approach to innovation. The company encourages resilience and a mindset of continuous learning and growth.

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TikTok

Entertainment & Media
Industry
10,001+
Employees
2017
Founded Year

Mission & Purpose

TikTok is a social media platform where users create and share short videos on various topics, including entertainment, education, and lifestyle. Their ultimate goal is to inspire creativity and bring joy to people's lives through engaging and entertaining content. TikTok's purpose is to provide a platform for self-expression and connection, fostering a global community where individuals can express themselves authentically and connect with others who share similar interests and passions.