Harikrishnan Koroth | Senior Network Engineer

About

I build and run IT infrastructure across networks, security, servers, storage and cloud. My work covers the full lifecycle: high- and low-level design, implementation, daily operations, and the troubleshooting that keeps complex environments stable.

I'm at my best resolving hard problems, organizing projects end to end, and making infrastructure serve what the business actually needs.

Based in: Dubai, UAE
In the field since: 2010
Current company: Moniify
Focus: Network and security
Languages: 4
Phone: +971 52 803 4966

Featured projects

A few of the larger pieces of work I've led, from design through to delivery.

Mawarid Holding Investment · 2022–2024

Group-wide SD-WAN, SASE and ZTNA rollout

Modernizing connectivity and secure access for multiple entities and subsidiaries under one holding group, in line with group standards and each business's needs.

What I delivered

Designed and led the SD-WAN implementation and the move to SASE and ZTNA for secure access.
Ran firewall migrations, layer 2 and layer 3 switch upgrades, and enterprise Wi-Fi with RADIUS.
Owned the documentation, BOQ, cost analysis and budget for the program.

SD-WAN
SASE
ZTNA
Firewall migration
RADIUS

Unilabs Middle East · 2021

Healthcare systems integration across the UAE

Connecting a regional lab network's systems with lab analyzers, hospital clients and UAE government health platforms, working with the Unilabs HQ team.

What I delivered

Led LIS integrations with COBAS, Bio-Rad and Indexor, and with hospital systems for Mediclinic, Medcare, UMC and SEHA.
Led network integrations with DHA, DOH, the Malaffi portal and the Alhosn app.
Delivered the email migration to Office 365 and endpoint protection for enterprise users.

LIS / HIS
DHA / DOH
Malaffi
Office 365
Healthcare IT

ICSME · 2021–2022

Enterprise wireless and data center design for clients

Planning, building and tuning wireless networks and high-availability data centers for a range of client organizations.

What I delivered

Surveyed and designed enterprise Wi-Fi using Ekahau, then deployed Cisco Aironet, Aruba and Ubiquiti.
Validated RF link performance and optimized radio parameters and neighbor lists.
Designed high-availability data centers and SD-WAN for data centers and branches.

Ekahau
Cisco Aironet
Aruba
Ubiquiti
Data center

Career route

Every hop from my first role to today. Select a role to see what I did there.

08 MoniifySenior Network Operations Engineer, Dubai 2024–now
- Lead end-to-end design of network, server, storage and cloud infrastructure, producing HLD and LLD for LAN, WAN and data center environments.
- Implement and run firewalls, Nexus switching, virtualization platforms and SASE for high availability.
- Enforce security through firewall, SASE and ZTNA policies, segmentation, access control and patching.
- Lead infrastructure projects from planning to delivery, including BOQs, CMDB updates, POCs and vendor management.
- Nexus
- SASE
- ZTNA
- Virtualization
- HLD / LLD
07 Mawarid Holding InvestmentSenior Network Engineer, UAE 2022–2024
- Designed network infrastructure for entities and subsidiaries across the group.
- Led SD-WAN, SASE and ZTNA rollouts, firewall migrations, switch upgrades, and enterprise Wi-Fi with RADIUS.
- Managed identity and access, internet policy, and patching for firewalls, endpoint and email security.
- Owned project documentation, BOQs, cost analysis and the annual network and security budget.
- SD-WAN
- SASE
- Firewall migration
- RADIUS
06 ICSMESenior Network Engineer, UAE 2021–2022
- Planned enterprise wireless projects for clients using Ekahau design and survey tools.
- Implemented and optimized Cisco Aironet, Aruba and Ubiquiti deployments, and validated RF link performance.
- Designed high-availability data center projects and SD-WAN for data centers and branches.
- Ekahau
- Cisco Aironet
- Aruba
- Ubiquiti
- Data center
05 Unilabs Middle EastSenior IT Engineer, Dubai 2021
- Led email migration to Office 365 and endpoint security rollout with the Unilabs HQ team.
- Led LIS integrations with lab vendors and hospital systems including Mediclinic, Medcare, UMC and SEHA.
- Ran network integrations with government platforms: DHA, DOH, Malaffi and Alhosn.
- Managed system and network architecture across Middle East subsidiaries, including risk and cybersecurity assessments.
- Office 365
- LIS integration
- DHA / DOH
- Healthcare IT
04 Sultan HoldingIT Manager, Business Bay, Dubai 2017–2021
- Developed IT policies for network architecture, security and disaster recovery in preparation for annual SOX compliance audits.
- Managed UTM firewalls, routers, core and distribution switches, and cloud-controlled Wi-Fi.
- Negotiated vendor and consultant contracts, managed SLAs, and owned the IT budget.
- Led project testing and commissioning, and kept executives and department heads informed.
- SOX compliance
- UTM firewalls
- IT budgeting
- Vendor management
03 Radio Asia NetworkIT Network Engineer, Dubai 2013–2017
- Planned, designed, deployed and supported the station's enterprise network across LAN, WAN, NAS, VPN and wireless.
- Configured routing protocols, ACLs, NAT, load balancing and site-to-site VPN tunnels over static and dynamic IPs.
- Built UTM firewall rules, web and content filters, and monitored inbound traffic through IPS and IDS.
- Managed VoIP and PABX systems, streaming servers and AoIP studio equipment for FM and AM stations.
- Routing
- VPN
- IPS / IDS
- VoIP
- Axia AoIP
02 Mathrubhumi Printing and PublishingIT Engineer, India 2011–2013
- Ran technical operations for four FM radio stations, covering IP networks, broadcast networks and studio-to-transmitter MPLS links.
- Designed custom VLANs for user groups and set up VPN links between studio and transmitter sites.
- Installed and maintained AoIP-based Axia studio mix engines, nodes and Element consoles.
- Supervised installation of 8 Mbps optical lines for television studios and trained technical staff.
- MPLS
- VLANs
- Broadcast networks
- SAP ERP
01 Kerala State Electricity BoardAssistant Engineer, Kozhikode, India 2010–2011
- Responsible for all IT, networking and telecom infrastructure in a power plant.
- Operated and troubleshot IP SCADA applications, engine automation and instrumentation.
- SCADA
- Telecom
- Industrial networks

What I work with

The technologies and responsibilities I've handled across enterprise, healthcare, broadcast and holding-group environments.

Networking

Design and operation of LAN, WAN and data center networks.

Routing
Switching
Nexus
SD-WAN
VLANs
MPLS
VPN

Security

Policy, segmentation and threat protection across every layer.

Fortinet
Check Point
SASE
ZTNA
IPS / IDS
Patching

Wireless

Survey, design and optimization of enterprise Wi-Fi.

Ekahau
Cisco Aironet
Aruba
Ubiquiti
RADIUS

Cloud and systems

Servers, storage, virtualization and cloud platforms.

Microsoft Azure
Virtualization
Storage
Office 365

Project leadership

Running infrastructure projects from design to handover.

HLD / LLD
BOQ
Budgeting
Vendor management
CMDB

Certifications

Vendor certifications across routing, switching, security and cloud.

CCNACisco

CCNPCisco

NSE 4Fortinet

Certified Security AdministratorCheck Point

Microsoft AzureMicrosoft

Education

Bachelor of Engineering

Electrical, Electronic and Communications Engineering

Karpagam College of Engineering, 2005–2009

Languages

Malayalam Native
English Full professional
Hindi Full professional
Tamil Professional working