Gayan Wimalarathna

About Me

Cloud & Security professional with 12+ years of experience driving enterprise digital transformation, building high-performing teams, and leading high-value Microsoft cloud projects across Sri Lanka’s top enterprises. Proven expertise in Microsoft Azure, Microsoft 365, and Security governance, with a strong background in strategy, licensing, and compliance. Recognized Microsoft Certified Trainer (MCT) and lecturer, blending deep technical knowledge with business leadership.

Technical Skills

Azure

Microsoft 365

Cloud Architecture

Cybersecurity

Zero Trust

Identity & Access Mgmt

Threat Protection

Compliance

Enterprise Licensing

Azure Virtual Desktop

Azure Networking

DevOps (IaC)

PowerShell Automation

Windows Server

Active Directory

Presales Consulting

Solution Architecture

Cloud Strategy

Team Leadership

CIE Experience

Education

M.Sc. in Computer Science

(Security Engineering)

University of Moratuwa, Sri Lanka

2016–2020

B.Sc. (Hons) in Computing

Buckinghamshire New University, UK

2013–2014

BCS

The Chartered Institute for IT

2011-2012

G.C.E (A/L) Physical Science

Royal College, Colombo

2010

Certifications

Microsoft Certified Trainer

CCNA 200-301

Azure Solutions Architect Expert

Cybersecurity Architect Expert

Enterprise Administrator Expert

Azure Administrator

Azure Security Engineer

365 Security Administration

Azure Virtual Desktop

Azure Network Engineer

ITIL® 4 Foundation

Fortinet Certified Associate

Career Journey

Cloud & Security Consultant

Threely Technologies (Pvt) Limited

Sep 2025 – Present

Spearhead the organization’s cloud-first strategy, driving adoption of Microsoft 365, Azure, and security solutions.
Direct enterprise cloud transformation projects ensuring compliance, scalability, and cost optimization.
Establish and govern cybersecurity frameworks (Zero Trust, IAM, Threat Protection).
Lead presales, delivery, and managed services teams aligned with business growth objectives.
Forge strategic partnerships with networking and security vendors, strengthening market positioning.

Consultant

Tech One Global Lanka (Pvt) Limited

Sep 2025 – Present

Advise enterprise clients on Microsoft cloud adoption, licensing, and infrastructure modernization.
Review Azure and Microsoft 365 architecture designs, migrations, and security implementations.
Conduct technical demonstrations, workshops, and customer immersion experiences.

Head of Solutions Consulting

Tech One Global Lanka (Pvt) Limited

June 2023 – Sep 2025

Led cloud solutions consulting team driving presales, solution design, and enterprise transformation projects.
Defined/Reviewed scope, architecture, and estimates for Azure, M365 and Microsoft on-premises solutions.
Conducted training, Customer Immersion Experience (CIE) and customer events.
Contributed to securing more than 10 Microsoft Enterprise Agreement customers (each > USD 100K).
Played a key role in achieving Microsoft Azure Advanced Specialization status.

Career Progression

Previous Roles (2017 - 2023)

Cloud Solutions Architect (2022–2023)
Consultant → Senior Consultant – Cloud Infrastructure (2020–2022)
Technology Specialist → Senior Technology Specialist – Presales (2017–2020)

Leadership & Memberships

CSSL

Computer Society of Sri Lanka

Professional Member (MCS) (2015-2019)

BCS

British Computer Society

Professional Member (MBCS) (2014-2019)

Leo Club

Leo Club of Colombo (Host)

Member, Director & President (2015–2022)

Cloud and Security Consultant