Dan Sexton

Experience

• 

  Enterprise Management Engineering - Barclays

  Aug 2011 - Jul 2021

  Responsibilities:• Tanium SME at Barclays, involved in all technical aspects of Tanium including designing, engineering, implementing, deploying, operationalising, supporting and utilising the platform.• Leading a team of system engineers to design, deliver and manage systems management capabilities including Tanium & Cisco Tetration.• Providing support to team members while enabling them to develop their technical skills and general competencies. • Developing short and long term team plans that align to business strategies.• Continuously managing plans and prioritising workload according to business needs and commitments. • Enhancing team brand to increase awareness and improve reputation. Show less Responsibilities:• Tanium SME. Involved in all technical aspects of Tanium including designing, engineering, implementing, deploying, operationalising, supporting and utilising the platform.• Designing, engineering and leading the delivery of cutting edge global scale enterprise solutions, including Tanium, ServiceNow Service Mapping, Splunk and ITM6.• Hardening applications and infrastructure using native technologies, HSMs (SafeNet) and password repository integrations (CyberArk).• Providing effective communications to senior management, stakeholders and project representatives.• Creating detailed, visual and easy to interpret infrastructure diagrams and writing thorough build and support documentation.Key Achievements:• Lead the successful implementation & deployment of Tanium and numerous Tanium modules.• Developed multiple Tanium integrations including a fully automated custom content promotion pipeline, API integrations with several products such as Resilient and Connect integrations to multiple destinations including Splunk, SQL Server, VirusTotal & HTTPS listeners.• Coordinated and delivered numerous successful complex Tanium migrations and upgrades, including a full migration from Barclays managed Tanium infrastructure to Tanium appliances and multiple platform & module upgrades.• Created numerous custom Tanium sensors & packages for Cyber Security and IT Service Management purposes. Show less • Delivering, supporting and managing global scale monitoring and analytical infrastructure, applications and processes including: Tivoli (DM, ITM5 and ITM6), Tivoli TEC, Tivoli Netcool/OMNIbus, CA Nimbus, Splunk, xMatters AlarmPoint, HP BAC, Novell BSM, Netuitive, SCOM (2007 & 2012), Ganglia Metric Reporting, RTView, ServiceNow ServiceWatch and ServiceDiscovery. • Organising and leading the successful delivery of complex monitoring solutions whilst ensuring project deadlines are met and key stakeholders expectations are managed accordingly.• Troubleshooting, debugging and resolving complex technical issues under pressure and out of hours, whilst maintaining strict SLA’s to maximise service availability.• Continuously developing innovative and proactive solutions to increase service stability and improve stakeholder experience.• Adhering to appropriate responsible IT Service Management methodologies such as ITIL V3 framework and abiding by strict financial and data privacy regulations.• Working proficiently with a variety of computer operating systems, including AIX, Linux RedHat/Suse/Ubuntu, Solaris and Windows.• Writing, debugging and enhancing advanced scripts in a variety of computer languages, including Perl, Bash/Shell, C/C++ and SQL.• Providing thorough technical training and workplace mentoring to new joiners and global colleagues. • Writing detailed implementation, support and process documentation to be used by global colleagues. Show less

  • VP - IT Systems Management Lead

    Aug 2020 - Jul 2021

  • AVP - IT Systems Management Engineer

    Aug 2016 - Aug 2020

  • IT Infrastructure Analyst

    Aug 2011 - Jul 2016
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  EndpointX

  Jul 2021 - now

  Senior Consultant