Network Security Engineer Job Vacancy in Koidu, Sierra Leone – Telecommunications

Job Description

Position: Network Security Engineer

Company: Orange Sierra Leone

Location: Koidu, Sierra Leone

Experience: 5+ years in network security, preferably in telecom environment

Education: Bachelor’s degree in Computer Science, Information Security, or related field

Employment Type: Full-time

Industry: Telecommunications

Department: Network Operations

Salary: SSP 1,200,000 – 2,000,000 per annum

Vacancies:1

Company Overview

Orange Sierra Leone is a leading telecommunications provider delivering mobile, broadband, and digital services across the nation. As part of the global Orange Group, the company combines international expertise with local market insight to drive connectivity, innovation, and economic growth in Sierra Leone. With a commitment to sustainable development, Orange Sierra Leone invests in community projects, digital literacy programs, and infrastructure that empower individuals and businesses. The organization values diversity, inclusion, and continuous learning, offering a dynamic environment where talent thrives. This role contributes directly to the company’s mission of providing secure, reliable, and cutting‑edge network services, making it an exciting opportunity for professionals seeking to shape the future of telecommunications in Sierra Leone.

Job Overview

The Network Security Engineer will design, implement, and manage security solutions that protect Orange Sierra Leone’s network infrastructure from evolving cyber threats. Working closely with the Network Operations and IT teams, the engineer will ensure the confidentiality, integrity, and availability of data traversing the mobile and fixed‑line networks. Responsibilities include threat monitoring, vulnerability assessments, incident response, and the development of security policies aligned with industry standards. This position offers a chance to work on large‑scale projects, collaborate with international experts, and contribute to the resilience of Sierra Leone’s digital ecosystem. For more information, visit our career portal.

Key Responsibilities

• Design and deploy network security architectures, including firewalls, intrusion detection/prevention systems, and VPN solutions.
• Conduct regular vulnerability assessments and penetration testing on network devices and services.
• Monitor security alerts, analyze incidents, and lead incident response activities to mitigate threats.
• Develop and enforce security policies, standards, and procedures in line with ISO 27001 and NIST frameworks.
• Collaborate with telecom engineers to integrate security controls without impacting service performance.
• Provide technical guidance and mentorship to junior security staff and cross‑functional teams.
• Maintain up‑to‑date documentation of security configurations, risk assessments, and compliance reports.
• Stay informed about emerging threats, zero‑day vulnerabilities, and industry best practices to continuously improve the security posture.

Required Skills

• Strong knowledge of network protocols (TCP/IP, BGP, MPLS) and telecom equipment.
• Hands‑on experience with firewalls (e.g., Palo Alto, Fortinet), IDS/IPS, and SIEM platforms.
• Proficiency in scripting languages such as Python or Bash for automation.
• Understanding of encryption technologies, PKI, and secure VPN configurations.
• Excellent analytical and problem‑solving abilities with a proactive security mindset.
• Effective communication skills to convey technical concepts to non‑technical stakeholders.
• Relevant certifications (CISSP, CCNP Security, CEH) are highly desirable.

Education

A Bachelor’s degree in Computer Science, Information Security, Electrical Engineering, or a related discipline is required. Advanced degrees or specialized training in cybersecurity will be considered an advantage.

Experience

Applicants must have a minimum of five years of professional experience in network security, preferably within a telecommunications environment. Demonstrated experience in managing large‑scale network infrastructures and leading security initiatives is essential.

Salary

The compensation package ranges from SSP 1,200,000 to SSP 2,000,000 per annum, commensurate with experience and qualifications. The package includes performance‑based bonuses and comprehensive benefits.

Benefits

• Health insurance covering medical, dental, and vision care.
• Retirement savings plan with employer contributions.
• Paid annual leave, sick leave, and public holidays.
• Employee assistance program and wellness initiatives.
• Opportunities for international assignments and cross‑border projects.

Training

• Access to Orange Group’s global learning platform for continuous skill development.
• Sponsored certifications and industry‑recognized training courses.
• Regular internal workshops on emerging security technologies and threat intelligence.

Working Environment

Orange Sierra Leone offers a collaborative, fast‑paced environment where innovation is encouraged. Employees work in modern office spaces equipped with the latest tools and technologies. The role may require occasional on‑site visits to network sites across the country, providing exposure to diverse operational settings.

Application Process

Interested candidates should submit their updated CV and a cover letter outlining relevant experience through the online application portal. Shortlisted applicants will undergo a technical assessment followed by interviews with the Network Operations and HR teams.

Equal Opportunity Statement

Orange Sierra Leone is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive workplace where all employees are valued, respected, and given the chance to succeed regardless of gender, ethnicity, disability, or background.