Network Administrator
Full Time - Onsite @ITJobs.lk posted 23 minutes ago in IT Infrastructure & Cloud , in IT Support & Administration: Email JobJob Description
Employment Type: Full-Time
Location: Colombo, Sri Lanka (Onsite)
Industry: Financial Services / Banking
About the Opportunity
Are you a skilled network professional looking to secure and optimize critical financial infrastructure? One of Sri Lanka’s leading Financial Institutions is seeking a highly reliable and proactive Network Administrator to join their core IT infrastructure team based in Colombo.
In the financial sector, network stability and security are paramount. This full-time, onsite position offers a robust environment where you will take hands-on responsibility for maintaining, monitoring, and upgrading high-availability corporate networks, ensuring seamless operations across the institution.
Key Responsibilities
-
Oversee the daily installation, configuration, maintenance, and troubleshooting of the institution’s network infrastructure (routers, switches, firewalls, and VPNs).
-
Monitor network performance, uptime, and traffic configurations to optimize bandwidth and prevent system downtime.
-
Implement and enforce strict network security protocols, firewalls, access controls, and data encryption standards to safeguard sensitive financial information.
-
Manage network backups, disaster recovery protocols, and routine firmware/software updates across all network infrastructure.
-
Collaborate closely with system administrators and cybersecurity teams to de-risk network vulnerabilities and resolve high-priority hardware or connectivity issues.
Requirements & Skills
-
Experience: Minimum of 8-10 years of proven hands-on experience as a Network Administrator or Network Engineer, preferably within banking, financial services, or a highly regulated enterprise infrastructure environment.
-
Technical Proficiency: Strong expertise in routing and switching protocols, LAN/WAN setup, VLAN configurations, and managing next-generation firewalls (e.g., Fortinet, Cisco, or Sophos).
-
Certifications: Professional certifications such as CCNA, CCNP, or equivalent network security credentials are highly advantageous.
-
Availability: This is a full-time, 100% onsite role based at the head office in Colombo, requiring the ability to provide on-call support for critical infrastructure maintenance outside standard hours when necessary.
-
Problem-Solving & Communication: Sharp analytical skills to troubleshoot complex network bottlenecks rapidly, combined with clear English communication skills for documentation and cross-team collaboration.
What We Offer
-
Financial Sector Exposure: Gain invaluable experience managing high-security, high-availability corporate network infrastructure within a premier financial giant.
-
Hands-On Technical Growth: Direct involvement in scaling and securing enterprise-grade network hardware and security firewalls.
-
Stability & Career Growth: Long-term career progression and institutional stability within a recognized industry leader.
-
Highly competitive, industry-standard corporate salary package alongside standard financial sector benefits.
How to Apply
If you have the technical expertise to support and secure a leading financial network, click Apply Now on the ITJobs.lk platform. Alternatively, forward your updated resume directly to hello@itjobs.lk with the subject line “Application: Network Administrator – Financial Sector”.
Other jobs you may like
-
Level 1 & 2 Support Engineer Featured
- @ ITJobs.lk
- Sri Lanka

