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Mark Devanney Email & Phone Number

Network Security Specialist at BT Group
Location: Cumbernauld, Scotland, United Kingdom 10 work roles 2 schools
1 work email found @bt.com LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

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Work email m****@bt.com
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Current company
Role
Network Security Specialist
Location
Cumbernauld, Scotland, United Kingdom
Company size

Who is Mark Devanney? Overview

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Mark Devanney is listed as Network Security Specialist at BT Group, a with 72789 employees, based in Cumbernauld, Scotland, United Kingdom. AeroLeads shows a work email signal at bt.com and a matched LinkedIn profile for Mark Devanney.

Mark Devanney previously worked as Professional Services Consultant at Check Point Software Technologies Ltd and Awaiting a new challenge at Tbc. Mark Devanney holds Bachelor'S Degree, Electrical, Electronics And Communications Engineering, Distinction from Glasgow Caledonian University.

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Email format at BT Group

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{first}.{last}@bt.com
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Profile bio

About Mark Devanney

Technology leader with 14 years’ experience across hands on technical roles and leadership. Managed IT infrastructure, security devices and teams of network security engineers for divisions of a FTSE 100 global-reach telecoms corporation, BT Group plc , whilst delivering first class customer experience through a culture of continuous improvement and learning. I'm passionate about IT transformation and focused on a shift to cloud strategy and reducing complex legacy on premise infrastructure.Earlier career spanning multiple IT disciplines and sectors ranging from Education, Oil & Gas, IT consultancy and more, strong deliverables, operational nous and device/estate management on a large scale.Full & Clean Driving LicenceSecurity Cleared – SC********

Listed skills include Firewalls, Network Security, Cisco Technologies, Checkpoint, and 14 others.

Current workplace

Mark Devanney's current company

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BT Group
Bt Group
Network Security Specialist
Cumbernauld, GB
Website
Employees
72789
AeroLeads page
10 roles

Mark Devanney work experience

A career timeline built from the work history available for this profile.

Network Security Specialist

Cumbernauld, Gb

Awaiting A New Challenge

Tbc
Jan 2022 - Apr 2022

Senior Manager - Data Centre Networks & Firewall - Bt Technology

Bt

Cumbernauld, Glasgow, Edinburgh - Uk Wide

Leading a global team of highly skilled professionals from design, support & operations across BT’s extensive Datacentre network security estate and global interconnects, third party access back into BT. Telco grade infrastructure with added complexity that includes balancing technical skills with excellent leadership/management skills Accountable for :-• Setting Strategy• Protecting Service – keeping service issues to a minimum and making sure BT’s ability to Trade runs at the highest levels• Design authority - Security Architect lead across Firewalls, loadbalancers & Proxies• Operations & Support including incident management • Capacity Management, Tooling and alerting• Change management including bau and complex deliverabiles• Various technology evaluations and implementations across full customer experience lifecycle• Vendor engagement• Unit Costs including ongoing capex/opex• People Engagement & wellbeingTechnical Aspects :- • Checkpoint & Cisco Firewalls including physical/virtual across complex estate covering over 1600 + devices, VSEC, FTD’s, IP/CP Appliances/Crossbeams/VSX• Pulse Secure load balancers and service directors – Cisco ACE and netscalers• Bluecoat/Symatec/Broadcom proxies• Algosec Tickets integration plus automation• Nexus Cisco large router/switching network inlcuding ACI

Sep 2017 - Jan 2022

Head Of Network Security – Bt Tso

Bt

United Kingdom

A proven track record of delivering enterprise-wide efficiency, consolidation, automation, and virtualization programs in a network security environment – advanced experience across the security vendors – leading on software-based OS/ Application upgrades, Hardware refresh using latest checkpoint/ cisco technologies- Experience deploying SPLAT/GAIA on checkpoint UTM, Resilience and open serverExtensive network security experience in an extending to advanced virtualized security gateway technologies and Network Layer 2 security gateways- understanding of Datacentre topologies deployed within BT- Example UDC/VDC/ECDetailed knowledge and extensive experience of BT's global corporate IP network operations and deployed network security solutions extending to BT Data Centre environments and next generation Data Centre’s- experience of core network infrastructure on top of security devices preferred.

Sep 2011 - May 2017

Senior Security Specialist : Implementation – Bt Security

Bt

United Kingdom

Managed service lead for BT internal, Health (NHS) & Government contracts including Lehrer, PKI and PSN. Managing customer deliveries including new deployments, changes, and 3rd line support across the various verticals, Design and consultation, customer relationship management in co-ordination with BT Security Account management teams.

Jun 2010 - Sep 2011

Security Specialist : Bt Hadrian Security Operations

Bt

Glasgow

Technical security lead within the Hadrian security team, leading on new datacentre designs for BT’s customer facing units. Management and owner of delivery of managed security servicesResponsible for the prioritisation and allocation of resource in supporting the protection of service and growth internally across the various line of business.Responsible for Technical deliveries across the estate- expert experience delivering and supporting checkpoint layer3 firewall devices, Cisco Layer 2 single/ multi-mode devices (FWSM/ ASA), Cisco layer 3 security devices, Advanced knowledge, and experience of Checkpoint Virtualised solutions with hands on experience of latest vendor deliveries- Checkpoint GAIA, SPLAT, VSX/VE.

Apr 2007 - Jun 2010

Network Security Consultant

Scotland

Design and implementation of network solutions serving clients throughout the UK.• Customer Consultancy, aligning customer needs and delivering new solutions, managing customer expectations, creating growth and generation of new business via technical pre sales offering viable solutions to existing / new customers • Designed Hosted Data Centre services to sell managed service solutions to external customers across the UK• Perimeter security and VPN provision using Check Point FW1and Cisco technologies. Creation of customer design solution, security architecture design and generation of support agreements- Checkpoint/ Cisco/ McAfee/ Microsoft (ISA)• MS Domain migration service lead- TDA to customer windows AD migration services- New/Migration services / consultancy to customers windows Domain proposals• Provision of email security gateway and web content management products.• Microsoft Windows infrastructure consultancy and design and support.• Design and implementation of IBM Blade Centre and Storage Area Network solutions and other IBM servers.Key Certification :- MCSE +I, Checkpoint CCSA, CCSE, Symantec, IBM Blades, Cisco CCNA/NP

Jan 2005 - Mar 2007

Group Network Manager

Howco Group

Glasgow, United Kingdom

IT Network Manager- specialising in infrastructre deployment and support. Leading Global IT department.• Leadership of multi-disciplined worldwide IT Team creating a high performing motivated team- 30 people worldwide• IT Compliance and Security Focus• Network Management with specific focus on security, data protection, disaster recovery and the group’s messaging and content filtering. Provide the security and compliance tools to allow the company to trade 24x7 with no service disruption.Key Certification :- MCSE +I, Checkpoint CCSA, CCSE

Apr 1997 - Apr 2005

Computer Engineer

Glasgow

Electronic Technician/ Computing Support Office within the Department of Engineering

Mar 1992 - 1998
Team & coworkers

Colleagues at BT Group

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2 education records

Mark Devanney education

Bachelor'S Degree, Electrical, Electronics And Communications Engineering, Distinction

Specialising in Data Communications

Education record

Our Ladys High School
FAQ

Frequently asked questions about Mark Devanney

Quick answers generated from the profile data available on this page.

What company does Mark Devanney work for?

Mark Devanney works for BT Group.

What is Mark Devanney's role at BT Group?

Mark Devanney is listed as Network Security Specialist at BT Group.

What is Mark Devanney's email address?

AeroLeads has found 1 work email signal at @bt.com for Mark Devanney at BT Group.

Where is Mark Devanney based?

Mark Devanney is based in Cumbernauld, Scotland, United Kingdom while working with BT Group.

What companies has Mark Devanney worked for?

Mark Devanney has worked for Bt Group, Check Point Software Technologies Ltd, Tbc, Bt, and Campbell Lee.

Who are Mark Devanney's colleagues at BT Group?

Mark Devanney's colleagues at BT Group include Carl Weathers, Sandeep Tiwari, Nitin Tanwar, David Turnbull, and Amber Kumar Satpathy.

How can I contact Mark Devanney?

You can use AeroLeads to view verified contact signals for Mark Devanney at BT Group, including work email, phone, and LinkedIn data when available.

What schools did Mark Devanney attend?

Mark Devanney holds Bachelor'S Degree, Electrical, Electronics And Communications Engineering, Distinction from Glasgow Caledonian University.

What skills is Mark Devanney known for?

Mark Devanney is listed with skills including Firewalls, Network Security, Cisco Technologies, Checkpoint, Security, System Deployment, Data Center, and Disaster Recovery.

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