52 Network Security 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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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?

Company Description

AIICO Capital Limited is a subsidiary of AIICO Insurance PLC, registered by the Nigerian Securities & Exchange Commission to carry out portfolio and fund management services. This alignment with AIICO Insurance PLC's mission to become a comprehensive financial institution allows for optimized fund management and revenue diversification through third-party funds management. AIICO Capital provides bespoke wealth solutions by leveraging a research-based approach to investment decisions, ensuring that client investments align with their objectives.

Role Description

This is a full-time Network and Security Engineer role at AIICO Capital Limited. The Network and Security Engineer will be responsible for managing, maintaining, and securing the company's IT infrastructure. Daily tasks will include network administration, monitoring security systems, identifying vulnerabilities, and implementing security measures. The role also involves ensuring compliance with security policies and doing regular system updates. This is a hybrid role based in Lagos, with some work-from-home flexibility.

Qualifications

• Network Administration, Configuration, and Troubleshooting skills
• Experience in Security Systems Monitoring and Vulnerability Assessment
• Proficiency in implementing security measures and policies
• Network Security and Cybersecurity Awareness
• Strong Analytical and Problem-Solving skills
• Excellent written and verbal communication skills
• Ability to work independently and as part of a team
• Experience in the financial services industry is a plus
• Bachelor's degree in Computer Science, Information Technology, or related field

Company Description

CrestPrime Studios (CPS) is a leading provider of comprehensive digital solutions, offering services ranging from UI/UX Design, AI Integration, and Motion Design to Mobile and Web App Development. At CPS, we strive to bring your vision to life by providing a one-stop shop for all your digital needs. Our team is dedicated to delivering top-notch services to help you achieve your digital goals.

Role Description

This is a full-time hybrid role for a Cyber Security Specialist located in Port Harcourt. While some work can be done from home, candidates are expected to work on-site as required. The Cyber Security Specialist will be responsible for ensuring the security of applications, networks, and information systems. Daily tasks include monitoring security measures, identifying vulnerabilities, implementing security protocols, and responding to security breaches.

Qualifications

• Skills in Application Security and Cybersecurity
• Experience in Network Security and Information Security
• Expertise in Cyber security practices
• Excellent analytical and problem-solving skills
• Strong understanding of security protocols and best practices
• Ability to work both independently and collaboratively in a hybrid work environment
• Bachelor's degree in Information Technology, Computer Science, or related field
• Professional certifications such as CISSP, CISM, or CEH are a plus
• 5/7 years experience in the said field (Senior)
• 2/3 years experience in the said field (Junior)

Company: 21 search

Position Title: IT Security Specialist

Industry: FMCG

Location: Ogun State

Role Summary:

Our client seeks a skilled IT Security Specialist to develop, implement, and manage robust information security policies and systems across the organization. The ideal candidate will have a solid background in cybersecurity, hands-on experience with modern security technologies, and the ability to train staff on best practices to protect digital assets.

Key responsibilities:

· Develop, implement, and maintain the organization's information security policies, procedures, and standards.

· Conduct risk assessments and audits to identify and mitigate potential security threats and vulnerabilities.

· Manage and administer security tools and systems, such as firewalls, antivirus, encryption, authentication, backup, and recovery.

· Research and evaluate new security technologies and solutions to enhance the organization's security posture.

· Report and document security issues and incidents, and provide recommendations and solutions

Minimum Requirement

· First degree in computer science, information technology, cybersecurity, or a related field

· Professional certification CISSP, CISM, CEH, or CompTIA Security+ etc. will be an advantage.

· Minimum of 5 years' experience in information security or a similar role.

· Knowledge of information security principles, frameworks, standards, and best practices, such as ISO 27001, NIST, and COBIT.

What we Offer

Competitive Salary Package

Annual Leave Allowance

13th month, HMO

Other Benefits

How to Apply

Interested candidates should fill the google form using the link attached below:

Job Type: Full-time

We're seeking an Information Security Officer to oversee security governance, risk management, and compliance across the organization. This role ensures that security policies, controls, and practices align with business objectives while meeting local and industry regulatory requirements. The ideal candidate will have deep experience in security governance and translating technical risks into business terms for executives and stakeholders.

At
TeKnowledge
, your work makes an impact from day one. We partner with organizations to deliver AI-First Expert Technology Services that drive meaningful impact in AI, Customer Experience, and Cybersecurity. We turn complexity into clarity and potential into progress—in a place where people lead and tech empowers.

You'll be part of a diverse and inclusive team where trust, teamwork, and shared success fuel everything we do. We push boundaries, using advanced technologies to solve complex challenges for clients around the world.

Here, your work drives real change, and your ideas help shape the future of technology. We invest in you with top-tier training, mentorship, and career development—ensuring you stay ahead in an ever-evolving world.

Why You'll Enjoy It Here:

• Be Part of Something Big
  – A growing company where your contributions matter.
• Make an Immediate Impact
  – Support groundbreaking technologies with real-world results.
• Work on Cutting-Edge Tech
  – AI, cybersecurity, and next-gen digital solutions.
• Thrive in an Inclusive Team
  – A culture built on trust, collaboration, and respect.
• We Care
  – Integrity, empathy, and purpose guide every decision.

We're looking for innovators, problem-solvers, and experts ready to drive change and grow with us.

We Are TeKnowledge. Where People Lead and Tech Empowers.

Responsibilities

• Ensure policies, controls, and security practices are aligned with business goals and regulatory compliance.
• Define, implement, and maintain IT processes derived from security policies.
• Oversee compliance with industry standards, local regulations, and internal security frameworks.
• Translate security risks into clear business impacts for senior leadership and stakeholders.
• Work closely with risk, compliance, and IT teams to monitor adherence to security requirements.
• Contribute to security awareness initiatives and governance reporting.
• Support audit processes, remediation efforts, and continuous improvement of security posture.

Qualifications

Education & Certifications

• 4-year IT-related degree (mandatory).
• CISM and CISSP certifications (required).

Experience

• 7 years of experience in the cybersecurity domain.
• Proven track record in defining IT processes, aligning them with policies, and ensuring compliance with local and industry regulations.

Core Skills & Competencies

• Strong expertise in security governance, risk, and compliance.
• Ability to translate technical security risks into business language.
• Excellent stakeholder engagement and communication skills.
• Strategic mindset with attention to regulatory and operational requirements.
• Proactive approach to identifying gaps and recommending improvements.

We are seeking an experienced Information Security Consultant with strong offensive and defensive cybersecurity skills. The ideal candidate has a hacker's mindset — able to think like an attacker to identify vulnerabilities, but also experienced in building strategies, defenses, and best practices to secure organizations against threats.

Key Responsibilities

• Conduct security assessments and penetration tests across networks, web apps, mobile apps, and cloud environments.
• Identify and exploit vulnerabilities, then provide actionable remediation guidance.
• Advise clients on risk management, security policies, and compliance (ISO 27001, NIST, GDPR, etc.).
• Perform threat modeling and security architecture reviews.
• Develop and deliver incident response plans and conduct post-breach investigations.
• Provide security awareness training and help organizations build a strong security culture.
• Stay current with emerging threats, vulnerabilities, exploits, and mitigation techniques.

Required Skills & Knowledge

• Strong understanding of operating systems (Linux, Windows, macOS, mobile platforms).
• Deep knowledge of networking protocols (TCP/IP, DNS, HTTP/S, VPNs, firewalls).
• Hands-on experience with penetration testing tools (Burp Suite, Metasploit, Nmap, Wireshark, etc.).
• Proficiency in scripting/programming: Python, Bash, PowerShell; familiarity with C/C++ and JavaScript is a plus.
• Knowledge of web app security (OWASP Top 10) and common vulnerabilities (SQLi, XSS, CSRF, privilege escalation).
• Experience with cloud platforms (AWS, Azure, GCP) and their security models.
• Familiarity with cryptography, authentication, and identity management.
• Strong communication skills — ability to present findings to both technical and non-technical audiences.

Preferred Certifications (not mandatory)

• OSCP, OSCE, OSEP (for offensive security skills).
• CISSP, CISM, CISA (for governance & consulting credibility).
• CEH (Certified Ethical Hacker) or equivalent.
• GIAC certifications (GCIH, GPEN, GREM, etc.).

Job Type: Full-time

Pay: ₦250, ₦300,000.00 per month