50 Network Manager jobs in Nigeria

The Network Security Engineer will be responsible for designing, implementing, monitoring, and supporting security solutions across enterprise networks and OT/ICS environments in the Oil & Gas sector. The role ensures the protection of critical infrastructure, business applications, and data assets against evolving cyber threats while aligning with industry standards and regulatory requirements.

Role & responsibilities

• Design, implement, and manage network and security infrastructure, including firewalls, IDS/IPS, VPNs, proxies, and NAC solutions.
• Monitor, analyze, and respond to security incidents, threats, and vulnerabilities across IT and OT environments.
• Ensure secure connectivity between onshore/offshore facilities, refineries, data centers, and cloud platforms.
• Conduct regular risk assessments, penetration testing, and vulnerability scans; apply remediation and hardening measures.
• Implement and maintain SIEM, SOC tools, and logging solutions for proactive threat detection.
• Collaborate with cross-functional teams to ensure secure integration of IT and OT (SCADA, DCS, ICS) systems.
• Maintain compliance with Oil & Gas industry cybersecurity standards (e.g., NIST, IEC 62443, ISO 27001, GDPR, and local regulations).
• Develop, document, and enforce security policies, procedures, and best practices.
• Provide technical expertise during audits, incident investigations, and disaster recovery exercises.
• Support awareness and training initiatives to build a security-first culture across the organization.

Qualifications & Experience

• Bachelors degree in Computer Science, IT, Cybersecurity, or related field. Masters degree preferred.
• 58 years of experience in Network & Security Engineering, preferably in Oil & Gas, Energy, or critical infrastructure.
• Strong hands-on experience with firewalls (Palo Alto, Fortinet, Cisco ASA), IDS/IPS, SIEM tools (Splunk, QRadar), and endpoint protection.
• Knowledge of OT/ICS cybersecurity frameworks (ISA/IEC 62443, NERC CIP) is highly desirable.
• Experience with secure cloud (Azure/AWS), Zero Trust, and remote access solutions.
• Familiarity with industrial protocols (Modbus, OPC, DNP3) and their security implications is a plus.
• Relevant certifications such as CCNP Security, CISSP, CEH, GIAC (GICSP, GRID), or similar.

Key Skills

• Strong troubleshooting and analytical skills in complex IT/OT environments.
• In-depth understanding of cybersecurity threats, malware, and mitigation strategies.
• Ability to design and implement network segmentation, access controls, and secure architectures.
• Excellent communication, stakeholder management, and documentation skills.
• Ability to work in high-pressure environments and support 24/7 operations when required.

Company Description

At Creastech Limited, we are passionate about leveraging technology to help our clients optimize their operations, reduce costs, and increase productivity. Our team of highly skilled professionals brings extensive experience and expertise to every project we undertake. We are dedicated to delivering innovative solutions that meet the unique needs of our clients and drive their success.

Role Description

This is a full-time on-site role for a Network Security Administrator located in Lagos State, Nigeria. The Network Security Administrator will be responsible for ensuring the security and integrity of our clients' network infrastructure. Daily tasks include network administration, network security measures, troubleshooting network issues, implementing cybersecurity strategies, and maintaining information security protocols to protect against threats and vulnerabilities.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, or related field
• Proven
  2years
  experience as a Network Administrator, Systems Administrator, or similar IT role.
• Proficiency in Network Administration and Network Security
• Familiarity with Microsoft/Windows Server, Linux, and Active Directory.
• Ability to troubleshoot network issues effectively
• Knowledge of Cybersecurity and Information Security practices
• Excellent analytical and problem-solving skills
• Strong understanding of security protocols and systems
• Relevant certification such as CISSP, CompTIA Network+, Fortinet NSE, Sophos or CCNA Security is a plus
• Ability to work independently and collaboratively in a team environment

What We Offer

• Competitive salary and benefits package.
• Professional development opportunities, including certification support.
• A dynamic, innovative, and collaborative work environment.
• Exposure to diverse IT projects across industries.

Today

S

Rest of Nigeria (Nationwide)

Confidential

• Minimum Qualification :

Company Description

Standard Bank Group is a leading Africa-focused financial services group, and an innovative player on the global stage, that offers a variety of career-enhancing opportunities – plus the chance to work alongside some of the sector's most talented, motivated professionals. Our clients range from individuals, to businesses of all sizes, high net worth families and large multinational corporates and institutions. We're passionate about creating growth in Africa. Bringing true, meaningful value to our clients and the communities we serve and creating a real sense of purpose for you.

Job Description

• Implementation and administration of Network security controls and management strategies to maintain the confidentiality, integrity, availability, accountability, and compliance of the bank's network information assets.
• Development and management of network security policies, standards and procedures based on knowledge of best practises and compliance requirements
• Ensure that network security software and hardware are up to date and that security measures are in place to protect against outside threats. Also carries out other operational security activities to ensure that the organizations network is not compromised. Activities include administration and management of firewalls, Internet gateways, Internet based DDOS protection, Internet traffic advertisement and filtering, intrusion prevention and detection as well as ensuring that only secure network protocols permitted across the network.
• Configuration and administration of SSL VPNs (Remote access or Site-to-site), Troubleshoot technical application and network problems and provide remote support. Ensure that all incidents are responded to, actioned and resolved within the required MTTR. Ensure that calls are escalated and communicated to the required support teams and to management where required
• Design and Implement security protocols and procedures to protect the organizations systems and data
• Manage Core network devices for connectivity across network segments (DMZ, Internet, etc). Manage the network segmentation requirements across the organization and take responsibility for ensuring the required network controls are in place for maintaining the organization's PCIDSS certification
• Implement and Manage network connectivity with 3rd party partners over MPLS networks
• Implement and design network security controls for cloud services on AWS, Azure and other SAAS deployments
• Collaborating with network architects, technology suppliers, project managers and other technology support teams to design, build, and implement secure application systems
• Provide technical leadership and mentorship for network security analysts. Stay current on security measures and industry standards and regulations
  Manage housekeeping activities for the network security team, demonstrate high level competence with regards to enterprise Network security systems and work in tandem with the operational and information security functions to ensure security of the organization's information and technology estate

Qualifications

• First degree in Computer Science or any IT related discipline
  Professional qualification in CCNA, CEH, CCNP

Experience

• Minimum of five (5) years of post qualification experience
• IT security Experience/ communication or Network experience.
• Knowledge of a variety of network management tools, test equipment, circuits and routers,
• Experience in TCP/IP protocol stacks and firewall security in an inter-networking environment.
  Experience designing/implementing QoS in an enterprise environment, checkpoint, Cisco switches and routers

Additional Information

Behavioural Competencies

• Interacting with People
• Generating Ideas
• Interpreting Data
• Exploring Possibilities
• Team Working
  Following Procedures

Technical Competencies

• Network Security
• Network Analysis and Troubleshooting
• IT Support
  Business Continuity Management

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IT'S NOT JUST AN OPPORTUNITY TO GET ON THE CAREER LADDER.
IT'S AN OPPORTUNITY TO HELP THE WORLD GET ON TOGETHER
Why do people call us the world's most international company? Is it because we operate in more countries than any other logistics provider? Is it because we invented cross border shipping over 45 years ago? Or is it, perhaps, because what we do connects people across the world. And the more we can connect people, the better life on earth becomes.

We love our role in the world. And we're looking for the right people to help us maintain – and grow it. People like you.

Role context
Empowered to manage the DHL Aviation SSA network on a day to day basis. Enact contingency plans and manage compliance to NCG Standards and systems

Key Responsibilities

• Real time management of the SSA dedicated air network. Identify potential service incidents and initiate corrective actions to minimize service impact (Network Operational Center NOC).
• Schedule and capacity management of the SSA dedicated network. Mid and short-term allocation

planning, forecasting, ULD planning and balancing together with the relevant global, regional, local & functional stakeholders incl. partner airlines

• Ensure that all stakeholders are updated in regards to service incidents, crisis events and relevant information across all functions.
• Main contact point for other DHL Express Regional & Global Network Control departments. Maintain and implement global NCG standard operating process and procedures.
• Act as a first point of escalation for Network Control issues making decisions to ensure the highest level of on time performance is achieved.
• Develop and provide necessary monitoring, analysis and support for the escalation and resolution of trends.
• Monitor regional network performance including OTP and capacity to resolve issues as they arise, ensuring compliance to pre defined contingency plans.
• Provide and manage agreed capacity splits between airline / DHL Express / ACS and others, providing DHL Express the opportunity for growth. When required actively engage ACS to fill any capacity gaps
• Comply with Global NCG process and tools and act as first contact point to Global and other Regional NCG's.
• Lead the process and system compliance of the Regional NCG's.
• Develop Corrective Action and Contingency plans in conjunction with Regional NCG's and Aviation Managers
• Respond to issues arising from demand changes in the network to ensure movement of shipments without service impact at the lowest possible cost.
• Monitor Regional Compliance to updating ULD inventory systems to ensure sufficient inventory is available.
• Ensure compliance of Regional NCG's to ULD Balancing strategies.
• Activate the Regional Crisis Management Team (RCMT) when deemed necessary by monitoring regional events that impact on DHL.
• Assist regional Aviation Managers in the coordination, agreement and activation of flight contingencies.
• Activation of the Regional Crisis Centre by monitoring regional events that impact DHL's people, assets or shipments.
• Ensure clear and concise network communication in these events.

Minimum Requirements
Education & experience

• Minimum of 6 years in middle (regional or country) management, including senior experience in operations.
• University degree or equivalent industry experience.
• Good management, influencing & communication skills.
• Strong operational and network knowledge.
• Strong planning and decision-making competencies.
• Well-developed planning and organisation skills.
• Effective communication skills in English.
• Entrepreneurial spirit.
• Project management and planning skills.
• High level of cross-cultural competency and interpersonal understanding.
• Analytical thinking and problem-solving skills highly developed.
• Advanced Software Skills.

We are looking forward to your application.

(25007J2)

Nigeria-Lagos | Full-time | Permanent | Mixed Shift

IT'S NOT JUST AN OPPORTUNITY TO GET ON THE CAREER LADDER.

IT'S AN OPPORTUNITY TO HELP THE WORLD GET ON TOGETHER

Why do people call us the world's most international company? Is it because we operate in more countries than any other logistics provider? Is it because we invented cross border shipping over 45 years ago? Or is it, perhaps, because what we do connects people across the world. And the more we can connect people, the better life on earth becomes.

We love our role in the world. And we're looking for the right people to help us maintain – and grow it. People like you.

Role context

Empowered to manage the DHL Aviation SSA network on a day to day basis. Enact contingency plans and manage compliance to NCG Standards and systems

Key Responsibilities

• Real time management of the SSA dedicated air network. Identify potential service incidents and initiate corrective actions to minimize service impact (Network Operational Center NOC).
• Schedule and capacity management of the SSA dedicated network. Mid and short-term allocation

planning, forecasting, ULD planning and balancing together with the relevant global, regional, local & functional stakeholders incl. partner airlines

• Ensure that all stakeholders are updated in regards to service incidents, crisis events and relevant information across all functions.
• Main contact point for other DHL Express Regional & Global Network Control departments. Maintain and implement global NCG standard operating process and procedures.
• Act as a first point of escalation for Network Control issues making decisions to ensure the highest level of on time performance is achieved.
• Develop and provide necessary monitoring, analysis and support for the escalation and resolution of trends.
• Monitor regional network performance including OTP and capacity to resolve issues as they arise, ensuring compliance to pre defined contingency plans.
• Provide and manage agreed capacity splits between airline / DHL Express / ACS and others, providing DHL Express the opportunity for growth. When required actively engage ACS to fill any capacity gaps
• Comply with Global NCG process and tools and act as first contact point to Global and other Regional NCG's.
• Lead the process and system compliance of the Regional NCG's.
• Develop Corrective Action and Contingency plans in conjunction with Regional NCG's and Aviation Managers
• Respond to issues arising from demand changes in the network to ensure movement of shipments without service impact at the lowest possible cost.
• Monitor Regional Compliance to updating ULD inventory systems to ensure sufficient inventory is available.
• Ensure compliance of Regional NCG's to ULD Balancing strategies.
• Activate the Regional Crisis Management Team (RCMT) when deemed necessary by monitoring regional events
  
  that impact on DHL.
• Assist regional Aviation Managers in the coordination,
  
  agreement and activation of flight contingencies.
• Activation of the Regional Crisis Centre by monitoring regional events that impact DHL's people, assets or
  
  shipments.
• Ensure clear and concise network communication in these events.

Minimum Requirements

Education & experience

• Minimum of 6 years in middle (regional or country)
  
  management, including senior experience in
  
  operations.
• University degree or equivalent industry experience.
• Good management, influencing & communication
  
  skills.
• Strong operational and network knowledge.
• Strong planning and decision-making competencies.
• Well-developed planning and organisation skills.
• Effective communication skills in English.
• Entrepreneurial spirit.
• Project management and planning skills.
• High level of cross-cultural competency and interpersonal understanding.
• Analytical thinking and problem-solving skills highly developed.
• Advanced Software Skills.

We are looking forward to your application.

Posting Legal Entity SSA Regional Services (Pty) Ltd.

WE ARE HIRING

Job Title:Cyber Security and Network Security Trainer

Company: Alexander George Consulting Services

Location: Kaduna, Nigeria

Employment Type: Full-Time

Job Summary

We are seeking an experienced and passionate Cyber Security & Network Security Trainer to join our team at Alexander George Consulting Services. The ideal candidate will have strong technical expertise and the ability to deliver high-quality training sessions to individuals and corporate clients.

Key Responsibilities

• Design, develop, and deliver comprehensive training programs in Cyber Security and Network Security.
• Conduct hands-on practical sessions, simulations, and real-world case studies to enhance learner engagement.
• Prepare course materials, training manuals, and assessment tools.
• Evaluate student progress and provide constructive feedback.
• Stay updated with the latest cybersecurity threats, trends, tools, and compliance standards.
• Assist in curriculum improvement and development to meet industry standards.
• Provide mentorship and career guidance to trainees.

Requirements

• Minimum of BSc in Computer Engineering, Computer Science, or a related field.
• Minimum of 3 years proven experience in Cyber Security and Networking.
• Strong understanding of network protocols, firewalls, VPNs, intrusion detection/prevention systems (IDS/IPS), and related technologies.
• Proficiency in cybersecurity tools and frameworks ( NIST, ISO 27001, CIS Controls).
• Familiarity with ethical hacking, penetration testing, vulnerability assessment, and incident response.
• Must possess relevant industry certifications, such as CISSP, CompTIA Security+, CCNA Security, or equivalent.
• Excellent communication, presentation, and facilitation skills.
• Ability to simplify complex concepts for learners of varying technical levels.
• Experience withWindows and Linux system security.
• Knowledge ofcloud security and network architecture design.
• Priortraining or teaching experience in a similar role.

Salary & Benefits

• Competitive salary based on experience.
• Professional development and continuous learning opportunities.
• Friendly and innovative work environment.

How to Apply

Interested and qualified candidates should send their CV to )

with the subject line: "Application for Cyber Security & Network Security Trainer"

Please note: only shortlisted candidates will be contacted

Job Type: Full-time

Application Question(s):

• Do you have Cyber Security training experience?
• Can you perform cyber security practicals?

Today

Z

Lagos Full Time

Confidential

• Minimum Qualification :
• Experience Level : Senior level
• Experience Length : 5 years

Responsibilities

• Product Strategy & Planning :
• Define and execute the product roadmap for fixed network solutions.

• Conduct market research and competitor analysis to identify trends, customer needs, and business opportunities.
  Translate market and customer requirements into product requirements specifications (PRS).

• Product Lifecycle Management :

• Lead cross-functional product teams through the entire product lifecycle – from concept to end-of-life.

• Collaborate with R&D to ensure timely and high-quality product delivery.
  Monitor product performance post-launch and implement improvement strategies.

• Go-to-Market (GTM) Strategy :

• Develop and implement GTM strategies, including pricing, positioning, and messaging.

• Prepare product presentations, datasheets, white papers, and other sales enablement materials.
  Support sales and marketing teams with technical and commercial product training.

• Customer & Stakeholder Engagement :

• Serve as the internal voice of the customer, ensuring alignment between product development and customer needs.

• Engage with key customers and partners to gather feedback and drive product innovation.
  Represent the company at industry events, trade shows, and customer meetings.

• Business Analysis :

• Track product performance metrics (e.g., revenue, margin, market share).
  Analyze product profitability and contribute to business planning and forecasting.

Qualifications

• Bachelor's degree or higher in Telecommunications, Electrical Engineering, Computer Science, or a related field.
• Minimum 5 years of experience in product management, preferably in the fixed broadband or telecom infrastructure industry.
• Solid technical understanding of wirelsee network technologies, including:IP/MW)/DSL technologies (VDSL2, G.fast)/IP Routers and Switches/Network Management Systems
• Proven experience in product lifecycle management, go-to-market planning, and cross-functional team leadership.
• Excellent analytical, communication, and presentation skills.
  Fluent in English (written and spoken).

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Today

G

Ibadan & Oyo State Full Time

IT & Telecoms Confidential

• Minimum Qualification :
• Experience Level : Mid level
• Experience Length : 8 years

GVA is a telecom operator acting in the provision of very high-speed internet access. It builds, operates and markets its own fibre-to-the-home network under the CANALBOX brand. GVA launched its activities in 2017, and has since been operating in 9 countries (Gabon, Togo, Congo, Ivory Coast, Rwanda, Burkina Faso, Democratic Republic of Congo, Uganda) and 14 cities (Libreville, Port-Gentil, Lomé, Pointe-Noire, Brazzaville, Abidjan, Kigali, Rubavu, Ouagadougou, Bobo-Dioulasso, Kinshasa, Goma, Kampala, Cotonou).

As part of its expansion in Nigeria, GVA is looking for a Network & Infrastructure Manager based in Ibadan.

Job Duties

The Network and Infrastructure Manager is the manager of GVA's network and telecommunications infrastructure divisions. He/she plans and he/she monitors network engineering projects and technical operations for GVA's business. He/she coordinates the execution of GVA's technical network activities with internal operational teams and service providers. He/she may work alone or as part of a team, and report to the Technical Director.

Tasks

• Manage the infrastructure, network, and service delivery for international IP leased lines, national IP transit, backhaul, national and metropolitan leased lines.
• Supervise the team, resources, and service providers to ensure the delivery and quality of service and connectivity, and support the implementation of changes required for service delivery.
• Manage the technical implementation of agreed initiatives, in collaboration with all stakeholders, to ensure successful delivery.
• Assist the Group Engineering team in the deployment of network infrastructure and assets within GVA and ensure that the utilization, performance, and maintenance of infrastructure and assets are compliant with standards.
• Responsible for network resilience and redundancy plans.
• Oversee and manage network operations and infrastructure deployment.
• Understand technological trends in telecommunications infrastructure and implement relevant technological changes to evolve the company's infrastructure and meet changing business and customer requirements.
• Develop, monitor, and maintain network availability and quality indicators for all routes.
• Master disaster recovery processes for systems and infrastructure.
• Oversee and ensure the implementation of appropriate maintenance processes to preserve long-term service performance.
  Produce network infrastructure management procedures.

Activities may evolve based on service needs.

Responsibilities

• Ensure that assignments are completed on time and in accordance with defined schedules.
• Escalate any issues encountered to management.
• Produce activity reports and other reports.
• Generate weekly and monthly reports.
• Comply with the company's QHSE standards.
• Comply with the company's anti-corruption rules.
  Act as the technical director's local liaison on infrastructure and network engineering issues

The position is part of a context of application and scrupulous respect for the procedures and standards of the regulations in force as well as the internal regulations.

Required profile

Education and experience

• Engineering degree in telecommunications/computer science or equivalent
• Minimum 5 years of experience
  Professional certifications in computer networks would be an advantage

Skills

• Minimum of 5 to 8 years of relevant experience in a similar position, including at least 3 years in a management role.
• 8 to 10 years of professional/technical experience in the B2B infrastructure/telecommunications sector, with a strong understanding of planning and designing internet access delivery networks.
• Experience in a service company designing FTTx and telecommunications (ISP) infrastructure would be an asset.
• Good knowledge of BOQs and BOMs for ISP networks.
• Proven experience leading and delivering network deployment projects.
• Experience working in a multinational company with a strong understanding of emerging markets.
• Knowledge of IT and telecom networks.
• Knowledge of protocols such as TCP/IP, DHCP, and routing (OSP, BGP, MPLS).
• Skills in network QoS management.
  Knowledge of data center environments.

Soft skills

• Active and attentive listening. Quick to understand and grasp situations.
• Fluent in expression / good communicator
• Adaptability
• Ability to meet tight deadlines and manage high-pressure situations
• Ability to maintain discretion and confidentiality
• Ability to work in a team
• Polyvalent and able to handle requests outside of the job description.
• Ability to work on-call during shifts
  Knowledge of electrical infrastructure would be an asset

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