About Citrus

Providing refreshingly simple IT solutions to customers.

Technology can help your business do great things.

We’ll help you unlock the juicy parts that matter.

At Citrus, we understand that evolving your IT infrastructure isn’t just a decision - it’s a road-map of constant change, adoption and seamless execution that gives back time to manage your team and operate your business.

We take a consultative approach to understand your requirements, and are dedicated to building out a customised solution that adapts to the way your business does – making sure you and your team are supported every step of the way.



Implement a secure infrastructure with the right policies, process and architecture by bring together our experience and solutions partners to address your security requirements



Support all aspects of your network infrastructure solutions requirements via our highly skilled professionals use abstraction, orchestration, and automation tools to ensure we maximise your infrastructure outcomes and optimise cost

Hybrid IT Managed Service


Manage all aspects of your hybrid IT infrastructure using our extensive optimisation and automation solutions to maximise your infrastructure outcomes.

Our Company

David Barker

Nalaka Karunaratne
Co-Founder & Technical Director

Dan Barker
National Sales Director

Kiran Vuppalapati
Technical Lead

Abu Hadee
Technical Lead

Peter Papaioannou
Snr Business Advisor

Our Team

Learn More

Leadership Time

David Barker is a seasoned business executive having more than 28 years of leadership experience across systems and high end converged infrastructure, networking, collaboration and cloud.

David’s roles have included Managing Director of VCE in ANZ which was a joint venture between Cisco, EMC and VMWare, VP for Oracle Systems group, 16 years at Cisco Systems along with opening local offices in ANZ for Wellfleet Communications and Infotron.

These roles involved stints across Australia, New Zealand and Asia. David now lives in Australia.

David Barker

Managing Director

Dan Barker has twenty years’ experience in the IT industry and has an outstanding track record of success in pre/post sales technical support earning the highest level of Cisco certification "CCIE".  

Dan spent 16 years at Cisco in varying technical positions from level 3/4 post-sales support, consulting in the advanced services group to very large financial institutions, government departments, dept of defence and finally pre-sales activities.

With his strong communication skills, thirst for customer success has lead him to a sales career where he worked at a Cisco gold partner in a business development/account executive role.

Dan Barker

Business Development

Nalaka Karunaratne has over 15 years of industry experience with Information and Communications Technologies.

He has a passion to grow and transform today’s businesses through technology, and his experience in global communications projects helps him to better understand client requirements and exceed expectations.

He has previously worked as a Cisco employee and is a Collaboration and Video specialist who currently holds a CCIE in Collaboration.

Nalaka Karunaratne

Solutions Consultant

Kiran Vuppalapati has over 15 years of experience and a proven track record designing and implementing Cisco Collaboration solutions. He also has a strong technical services background which enables him to approach problems in a calm and methodical manner when troubleshooting critical and complex environments.

Kiran has a diverse background across multiple sectors, including education, finance and government working with Cisco gold partners, integrators, service providers and various vendors.

He has previously worked as a Cisco employee and is a Collaboration and Contact Centre specialist. He has achieved a double CCIE in both Routing & Switching and Collaboration.

Kiran Vuppalapati

Solutions Consultant

Abu Hadee has over 20 years of experience in IT and brings diverse experience and expertise in Collaboration, Contact Centre and Virtualization.

He has the ability to understand your Contact Center business requirements and fulfill these requirements through reliable, resilient and flexible solutions. With in-depth understanding of the products, He is able to get the best out of vendor products and can provide customised solutions.

Abu has extensive knowledge in SIP and SIP Solutions and has previously worked as a Cisco employee. He was part of Cisco A2Q and a DMS team member which brings in-depth knowledge of Cisco best practice design for UCCE. Abu is triple CCIE in Routing and Switching, Service Provider, and Voice. He is also SIP School Certified.

Abu Hadee

Solutions Consultant

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Capabilities Brochure

For a complete overview of what Citrus Solutions can offer your business, click the link below.

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