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Sam Stickland

Network Security Analyst @ Barclays

Software Developer and CCIE Network Engineer

London, United Kingdom

Ranked #993 out of 19,860 for Network Security Analyst in United States

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Sam Stickland's Email Addresses & Phone Numbers

Sam Stickland's Work Experience


Network Security Analyst

November 2014 to Present

Groupe Castel

Network Consultant

July 2014 to August 2014

CACI (previously Tomorrow Communications)

Network Consultant

February 2006 to June 2014

Sam Stickland's Education

University of Southampton

Chemistry with Computer Science

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About Sam Stickland's Current Company


Frequently Asked Questions about Sam Stickland

What company does Sam Stickland work for?

Sam Stickland works for Barclays

What is Sam Stickland's role at Barclays?

Sam Stickland is Network Security Analyst

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Sam Stickland's colleagues are Duncan Stuart, Jay Dalu-Chandu, and Stanisław Klajn

About Sam Stickland

📖 Summary

High skilled networking professional with over 12 years networking experience. CCIE certifed (#21455 Routing and Switching). I have held a number of senior network design and implementation roles. Prior to networking my programming experience has given me an understanding of all levels of the IT infrastructure. Consistently seen as highly technical with excellent interpersonal and management skills. I have particular expertise in the following areas: • Datacentre Network Design • Global Routing Design • Technology Evaluation and Selection • Trading Floor Network Design • Quality of Service • Multicast • Network Integration and Consolidation I keep up to date with networking technology trends and direction, which at present time is centralised around Software Defined Networking, Network Virtualisation and Overlays and Whitebox Networking Components. I have extensive working knowledge of the following technologies: - Cisco: The entire switching catalogue, including Nexus (7k, 6k, 5k 2k) and Catalyst 6500s, and a majority of the routing catalogue, including 7600s, ASR1000s and ISRs G1 & 2 Routing: Extensive experience with global routing environments involving BGP, OSPF, MPLS, VRFs and EIGRP - Multicast: Extensive multicast design and operational experience in trading environments - Security and Firewalls: Fortigate, Juniper, Cisco ASAs and Checkpoint - Load Balancing: F5 and Cisco ACE - Network Management: Cisco Works, HP Openview. Developed written custom monitoring systems for clients. - Software Development and Scripting: Python, Ruby, LAMP, SQL.Network Security Analyst @ From November 2014 to Present (1 year 2 months) Network Consultant @ Conducted an audit of a proposed pan-Africa WAN design. Conducted an audit of a number of sites within Burkina Faso Produced global design standards and QoS recommendations From July 2014 to August 2014 (2 months) Network Consultant @ I worked as a senior consultant at this company for a number of years, normally seconded to full time positions for our major clients (as detailed elsewhere in this profile). From February 2006 to June 2014 (8 years 5 months) Network Engineer @ This role involved developing a number of global design standards, sitting on the technical review board for all global network designs and projects, evaluation and selection of new networking technologies, and root cause analysis for major outages. Responsibilities / Achievements: • Design and deployment of global DDOS solution for multiple datacentres • Technical review of proposed designs and project plans • Evaluation and selection of new network technologies • Root Cause Analysis of major outages From December 2012 to May 2013 (6 months) London, United KingdomNetwork Consultant @ Short term assignment to provide design expertise on two very specific projects, global QoS design and automated market data feed failover between data centres. From August 2012 to December 2012 (5 months) Network Strategy, Architecture and Engineering @ Held a position on the Network Strategy, Architecture and Engineering team, first in Markets & International Banking, then Global Infrastructure Services. This role involved developing a number of global design standards, sitting on the technical review board for all global network designs and projects, evaluation and selection of new networking technologies, and root cause analysis for major outages. The environment made extensive use of multicast, IPSEC, VRFs and tunnelling technologies. Overlapping address space required ‘global’ NAT gateways with extensive traffic engineering techniques to ensure global route symmetry. Responsibilities / Achievements: • Developed the global network design for Front Office voice (trading) that utilities IPC’s SIP based Unigy • Developed the global BGP routing design used in the migration from EIGRP to OSPF • Worked on the team that delivered the global VRF and encryption designs used to consolidate multiple WANs from multiple business units • Architected a global network QoS design • Contributed to the global EIGRP to OSPF migration plans • Technical review of proposed designs and project plans • Evaluation and selection of new network technologies • Root Cause Analysis of major outages (including complicated multicast issues) From August 2009 to August 2012 (3 years 1 month) Network Consultant @ Re-architecture of two data centres, whose current layout was causing a significant amount of operational overhead. Also provided Security Consultancy to analyse and redesign of firewall rule base to meet the Payment Card Industry Data Security Standard (PCI DSS). This included custom software development to analysis the Firewall Service Module configurations. Responsibilities/Achievements: • Requirements gathering, evaluation and testing of technology solutions • Production of overall architecture, high level design and detailed low level designs. • The solution involved a greatly increased use of VMware, consolidation and rationalization of firewalls and provision for a large projected growth in secure connectivity to 3rd parties. From April 2009 to August 2009 (5 months) Network Consultant @ Implemented network monitoring. From February 2009 to April 2009 (3 months) Senior Network Support Engineer @ Based at a major TV broadcaster, Sam was a senior network engineer bridging the support and design teams. Responsibilities/Achievements: • Ratifying network designs (including server farms/data centres, campus LAN, 3rd party connectivity and broadcast environments) • Highest level of technical escalation • Support led redesign and refactoring of network architecture • Oversaw development of in-house network monitoring tools • Mentoring team members From 2006 to 2009 (3 years) Technical Director @ Design and implementation of a pan-European service provider network, spanning 17 datacentres and multiple internet exchanges. Responsibilities/Achievements: • Full routing architecture (BGP and OSPF) • Data centre Network Design • Development of in-house network monitoring tools • Highest level of technical escalation From January 2002 to February 2006 (4 years 2 months) Chemistry with Computer Science @ University of Southampton Sam Stickland is skilled in: QoS, OSPF, BGP, Programming, Multicast, Cisco Technologies, Routing, Network Architecture, Network Design, Data Center, ASA, EIGRP, Switches, Network Administration, CCIE

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In a nutshell

Sam Stickland's Personality Type

Introversion (I), Sensing (S), Thinking (T), Perceiving (P)

Average Tenure

2 year(s), 1 month(s)

Sam Stickland's Willingness to Change Jobs



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