I have nearly two decades of computer administrator experience, covering a broad spectrum of roles and technology. At the forefront of my skills are primarily Windows and Linux server administration backed up with solid shell, PHP and PowerShell scripting and automation.Although network security and administration have been part of my role for many years, in my most recent position I have been heavily focused on security hardening systems and applications and driving change towards a more secure platform, supported by my years of knowledge, attention to detail and perfectionist mindset.My specialty is uncovering problems and designing and implementing automated scripted solutions to them.I am fully bilingual English and Polish with a general interest in other languages, primarily German.Key Skills:Microsoft Windows 2000, 2003, 2008, 2012 & 2016CentOS, RedHat, Debian & SuSE LinuxCisco IOS, ASA firewalls and routersVMwareCHFI, CybersecurityBASH, PHP, PowerShellActive DirectoryMySQL, MSSQL, PostgreSQLWireshark, Tenable
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Cyber Security EngineerMasternaut Aug 2019 - PresentHq London (Worldwide Locations), GbResponsible for identifying and managing system vulnerabilities and cyber threats to the business.Architected a Tenable deployment to identify and track vulnerabilities across nearly 2000 systems.Worked with multiple teams, from developers, to system administrators and architects to diagnose and plan remediation strategies based on security findings.Lead hardening of HAProxy load balancer and Apache configurations to minimise attack vectors.Auditing and tightening rules on Cisco ASA firewalls.Improving security within Active Directory infrastructure by implementing automated monitoring and management of machine and user accounts and developing more controlled Group Policies,Identified weaknesses in processes and designed solutions to mitigate and eliminate them.Implementing secure-by-design principles based around Security Advisor as part of expansion to Azure cloud.Other main tools used include nmap & wireshark for network forensics and PowerShell & bash scripting for network information gathering and mass staged deployment of fixes and improvements. -
Operations EngineerMasternaut Oct 2011 - Aug 2019Hq London (Worldwide Locations), Gb3rd Line Engineer.Maintenance and support of numerous platforms, running on Windows and Linux in VMware.Microsoft Certified support for MSSQL databases plus MySQL and PostgreSQL.Network support and analysis.Firewall management on Cisco ASA and Juniper firewalls.Design and maintenance of HAProxy-based load-balancing solutions.Development and support of in house tools to automate tasks and bring together and provide information to improve efficiency, mostly using PowerShell and PHP.DevOps work utilising Chef based CI infrastructure.Active member of the Information Security team working to identify, analyse and proactively prevent security breaches and virus intrusions.In house digital forensics specialist with CHFI training for security best practise guidance. -
It Support EngineerCarleton Furniture Limited Jan 2005 - Aug 2011IT support and server administration.Single-handedly ran the department for 8 months.Maintenance and development of a mixed environment of 10 Windows, Linux and UNIX servers and approximately 80 Windows and Linux desktops across 3 sites.Securing and testing the various computer systems, applications and networks for vulnerabilities.Design and deployment of user VPN via a Cisco PIX and site to site VPNs.Development of in-house document management system.Deployment of Squid proxy and caching server.Built platform monitoring solution.Migration of full infrastructure to VMware.Management of users, files and security via Active Directory on Server 2003.Administration and deployment of backup solutions for all systems and users.Main products used include MS Windows (95, 98, 2000, XP, Vista, 7, 2003 & 2008), Linux (RedHat, SuSE and Debian), SCO UNIX, VMware, Acronis Trueimage, Backup Exec, CrashPlan Pro, Progress, MySQL, PostgreSQL, Squid, Apache, VPOP3, Exchange, MS Office, OpenOffice and Cisco IOS, Draytek routers. -
It TechnicianTenet Group May 2002 - May 2004Leeds, England, GbSetup of site-to-site VPN.Implementation of firewall and network monitoring.Support and maintenance of Windows servers and desktops.Main products used include MS Windows (NT, 2000 & 2003), RedHat Linux, MS Office, ZoneAlarm Pro, NetScreen firewalls, Sophos anti-virus and Citrix. -
Web DeveloperBlack Horse Properties 2004 - 2004Freelance web development.Wrote web-based property management system for client’s website.
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It AssistantTenet Group 2001 - 2001Leeds, England, GbGeneral assistant in the IT department.Tasks included system audit, technical assistance, setting up workstations and servers.
Adam Firth Education Details
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University Of BradfordInternet Computing
Frequently Asked Questions about Adam Firth
What company does Adam Firth work for?
Adam Firth works for Masternaut
What is Adam Firth's role at the current company?
Adam Firth's current role is Cyber Security Engineer at Masternaut.
What schools did Adam Firth attend?
Adam Firth attended University Of Bradford.
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