Senior Network Engineer (L3)

NTT Limited; Cape Town; Hybrid; ZAR 600,000 - 800,000; Full time

Job summary

A global technology company in Cape Town seeks a Senior Network Engineer (L3) to lead managed services and ensure client satisfaction. Responsibilities include resolving technical incidents, coaching junior team members, and optimizing network operations. Candidates should possess strong skills in Ansible, Python, and network security principles alongside relevant certifications. This role offers a hybrid working model and the opportunity to be at the forefront of technology innovations.

Qualifications

• Must have the ability to build secure networks for enterprise applications.
• Experience with network security and incident response preferred.
• Advanced knowledge of Multi-Protocol Label Switching (MPLS).
• Experience with deploying network systems.
• Good understanding of OSI Model and TCP/IP protocol suite.

Responsibilities

• Lead in providing exceptional managed services to clients.
• Identify and resolve critical incidents and problems.
• Coaching and mentoring junior team members.
• Conduct thorough analyses to provide resolutions.
• Provide onsite technical support and field engineering services.

Skills

Ansible

Python

Expertise in firewalls

Excellent customer service skills

Ability to work independently

Linux shell scripting

Cisco device management

Routing Protocols: OSPF, EIGRP

Network security principles

Understanding of SD-WAN technologies

Education

Diploma, degree, or relevant qualification in IT/Computing

CCNP Enterprise

CCNA Enterprise

ITILv4 certification

Fortinet NSE4 certification

Tools

Cisco

Fortigate

Meraki

Service Now

Remedy

Job description

Senior Network Engineer (L3) page is loaded

Senior Network Engineer (L3)

Apply remote type Hybrid Working locations Cape Town, South Africa time type Full time posted on Posted 25 Days Ago job requisition id R-131463

Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

Your day at NTT DATA
As a Networking Managed Services Engineer (L3) at NTT DATA, you will lead in providing exceptional managed services to our clients. Your day will revolve around proactively identifying and resolving technical incidents and problems, ensuring our clients meet all service level agreement (SLA) conditions, identify root cause of critical incidents and implement solutions for problems identified. With your advanced technical expertise, you will manage high-complexity tickets, conduct thorough analyses, and provide resolutions to a variety of complex issues, all while coaching and mentoring junior team members. Important responsibility is to create knowledge articles for frequent tasks/issues and train junior team members in executing those tasks. Provide inputs to automation teams to reduce manual efforts.

You will ensure that our clients' infrastructure is configured, installed, tested, and operational, performing necessary checks and employing monitoring tools to respond to alerts in a timely manner. Your role will involve identifying and logging problems before they escalate, analysing and escalating support calls, and investigating third-line support calls to find root causes and solutions.

Additionally, you will provide onsite technical support and field engineering services to clients, work closely with third-party vendors for issue escalation, and offer continuous feedback and updates to all involved parties. Through your efforts, you will drive operational improvements and optimize work processes, including opportunities for automation.

You may also have the opportunity to manage and implement projects within the technology domain, deliver disaster recovery functions and tests, and improve the quality of incidents and service requests through random monthly reviews. Your work will play a key role in delivering high-quality services that ensure a positive client experience throughout their journey with us.

• Review and assist the implementation of complex IT security.
• Ansible and Python knowledge.
• Understand firewalls and other network tools.
• Provide system documentation and diagrams as well as maintenance documentation.
• Implement change management procedures that accommodate system architecture changes.
• Identify and document undocumented areas of a network to develop a network diagram.
• Evaluate current IT resources and technology resources, develop and maintain security policy by identifying and evaluating threats to the organization's information assets.
• Ensure that the systems and networks of the organization are secure and operational.
• Understanding and working knowledge of SD-WAN technologies, Fortigate, Cisco, Meraki.
• Analyze and detect risks and vulnerabilities associated with new technologies, processes, and applications.
• Identify and investigate risk and vulnerability issues and develop and implement solutions to resolve them.
• Assist in developing and maintaining standards and procedures.
• Conduct comprehensive security investigations and audits and security-conscious implementations.
• Review client network policies and security documents and recommend changes or alterations.
• Experience with deploying network systems.
• Experience with security principles and principles of design.
• Excellent customer service skills.
• Ability to work independently with minimal supervision.
• Partake and abide by CAB processes when involved in changes.
• A well-working acquaintance in the Linux environment.
• Linux Shell Scripting.
• Security administration port security on switches and IP security on Routers via Access list.
• Preparing monthly work status reports and updating technology-specific documents.
• Responsible for designing and implementation of customers' network infrastructure.
• Cisco device management specific technical skills.
• Installing, Configuring, and Troubleshooting of Networking Equipment: Routers and Switches.
• Knowledge of Layer-2 Switching, VLANs, and Access-list.
• Routing Protocols: OSPF, EIGRP.
• Advanced knowledge of Multi-Protocol Label Switching (MPLS), Cisco Call Manager, and routing protocol BGP.
• Good understanding of OSI Model, TCP/IP protocol suite (IP, ARP, ICMP, TCP, UDP, SMTP, FTP, TFTP).
• IP addressing and subnetting, Routing concepts.
• Sound knowledge of routing protocols - OSPF, EIGRP.
• Switch Configuration and VLAN setup on switches.
• Implemented SNMP on devices to allow for network management.
• Implemented traffic filters using Standard and Extended access lists, Distribute-Lists, and Route Maps.
• Implementation of HSRP, VRRP, DHCP, DNS, FTP, TFTP, SCP.
• Perform Troubleshooting end-to-end between two sites.
• Working knowledge of enterprise-level network design and implementation.

Advantageous Skills:

• Knowledge and Experience with CISO DNAC.
• Ansible scripting
• Knowledge of Enterprise Monitoring (Spectrum, Cisco Prime, LogicMonitor, Solarwinds).
• Knowledge of incident management systems.
• Moderate years of relevant managed services experience.
• Moderate level knowledge in ticketing tools preferably Service Now and Remedy.
• Working knowledge of Infoblox.
• Fortinet SD-WAN.
• Knowledge of Cisco and Fortinet support, and TAC processes.
• Palo Alto Networks Certified Network Security Engineer (required)

Academic Qualifications:

• Diploma, degree, or relevant qualification in IT/Computing (or demonstrated equivalent work experience).

Qualifications:

• Must have the ability to build secure networks for enterprise applications; to maintain security configurations, troubleshoot problems related to network configuration and outages.
• Experience with network security and incident response preferred.
• CCNP Enterprise.
• CCIE Enterprise or Wireless would be advantageous.
• FortiNet NSE4 (NSE5 – NSE6 and NSE7 will be an advantage).
• ITILv4 or up to date and relevant ITIL certification (Foundation Level).
• CCNA Enterprise.
• Certified Wireless Network Expert (CWNE) - advantageous
• Certified Wireless Network Professional (CWNP) - advantageous

Workplace type :

Hybrid Working

About NTT DATA
NTT DATA is a $30+ billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long-term success. We invest over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure, and connectivity. We are also one of the leading providers of digital and AI infrastructure in the world. NTT DATA is part of NTT Group and headquartered in Tokyo.

Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.

About Us

Is innovation part of your DNA? Do you want to enable a connected future for people, organizations, and society?

Join our growing global NTT family and you’ll be part of the world’s largest ICT company (by revenue). We’ve combined the capabilities of 28 remarkable companies to become one, leading technology services provider. Together, we help our people, clients, and communities do great things with technology to create a more secure and connected future.

We employ 40,000 people across 57 countries. By bringing together the world’s best technology companies and emerging innovators, we work together to deliver sustainable outcomes to businesses and the world. Innovation is part of our DNA. We believe it’s key to what makes us different. So, we strive to move forward, challenge the status quo, and drive excellence through the technologies we integrate and the services we deliver around the world. The result is connected cities, connected factories, connected healthcare, connected agriculture, connected conservation, connected mobility, and connected sport. Together we enable the connected future.

You’ll be joining a global employer that is committed to attracting, growing and keeping the best talent. A place where you will be at the heart of our success!