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Work Experiences

Infrastructure Engineer

Sep 2022 - Present

Rail Delivery Group Ltd

200 Aldersgate Street, London

- Recruited to the Infrastructure team to assist in the transition to new premises and general system management/maintenance. - Azure, Office 365, Active Directory, Exchange, Mimecast, SQL Server, Cisco Networking & Security appliances, PowerShell, Adaxes, Varonis DatAdvantage, Bullwall

Infrastructure Engineer & Owner

Sep 2022 - Present

Leigh IT Services Limited

Southend-on-Sea, Essex

Senior Infrastructure Engineer

Jul 2021 - Sep 2022

Carpetright

Purfleet, Essex

- Responsible for managing and delivering project implementations. - IT Infrastructure support for the group. - Management of alerts from systems and ensuring the appropriate action is performed. - Maintain messaging platform, including Exchange, Mimecast, Exchange online. - Configure and troubleshoot servers, including e-mail, print, and backup servers and their associated operating systems and software. - Project manage and deliver the implementation of new solutions in line with the business and ICT Strategy. - Ensure network and IP connectivity of all workstations, application servers, and back-end office infrastructure. - Maintain and support virtualisation platforms. - Maintain / administer Microsoft stack (On-Premises & Cloud). Azure, Office 365, Active Directory, Exchange, Mimecast, SQL Server, Networking, Firewall (Palo Alto, FortiGate), PowerShell, Automation

Infrastructure Engineer

Nov 2020 - Feb 2021

Ventrica

Southend-on-Sea, Essex

- I was hired to assist the IT Director and the rest of the IT Team in achieving PCI Compliance to provide additional services to their customers. Whilst not an exhaustive list of tasks; this involved several tasks including upgrading Juniper firewalls (both hardware and firmware), patch management, updating and decommissioning new and old Windows Servers, implementing best practices for AD management. Security hardening; Active Directory, Windows Firewalls, Access Control shares. Updating and Securing Microsoft Exchange Server 2013. Requirements for the role were met and PCI Compliance was achieved by the target date of December 31st.

PCI Infrastructure Engineer

Aug 2019 - Feb 2020

Ventrica

Southend-on-Sea, Essex

- I was hired to assist the IT Team in achieving PCI Compliance in order to provide additional services to their customers. Whilst not an exhaustive list of tasks; this involved several tasks including upgrading Juniper firewalls (both hardware and firmware), patch management, updating and decommissioning new and old Windows Servers, implementing best practices for AD management. Security hardening; Active Directory, Windows Firewalls, Access Control shares. Updating and Securing Microsoft Exchange Server 2013.

3rd Line Service Desk Technician

Feb 2019 - Jul 2019

Six Degrees Group

St. Katherine Docks, London

- Resolve complex technical incidents logged by clients in an efficient, professional, and consistent manner, this requires extremely thorough analytical skills drawing from my own personal experience. Triage multiple high complexity tickets for demanding clients in a variety of bespoke infrastructures. Diagnose but also make infrastructure design changes where required. Manage the change process and provide technical vetting for change controls to senior management prior to sending it to the client for approval. Document my work and provide regular technical briefings to senior management. Provide consistent communications to the end user and key customer stakeholders. Provide training and mentoring to 1st and 2nd line staff. Function as incident manager during Priority 1 and Major Incidents. Function as back up to the Service Desk team in monitoring and acting upon all channels of communication into the Service Desk; ensure a timely response to all communication in line with customer expectation and Service Desk SLAs and targets. Provide consultation to Account Managers and Pre-Sales for capacity planning and road-mapping.

Senior IT Administrator

Jul 2018 - Dec 2018

Solopress

Southend-on-Sea, Essex

- Working with the Head of IT to implement a new virtual environment using Dell EMC Storage, Dell Unity Fibre Channel Switches and VMWare 6.5. We re-designed the original network (All Cisco Meraki) to allow the provision of VLANs for network segregation, separating the different departments and providing a more secure environment. We built a new domain and integrated it with Azure Active Directory to make better use of the O365 Business Licences and to leverage the additional services available (Onedrive/Skype/Sharepoint/Teams/Powershell Automation). The original E-Mail solution GFI Kerio Connect was migrated to Exchange 365, making use of the increased mailbox sizes and additional redundant storage allocations for Email Archiving. Implemented DKIM/SPF/DMARC records to dramatically reduce the current levels of SPAM throughout the organisation - I monitored DMARC regularly to ensure the solution was working effectively (dmarcanalyzer.com). Performed my additional requirement of training other team members on the helpdesk whilst on-the-job when assisting with day-to-day activities where required. - During this time, I also spent my personal development time creating a PowerShell Module to automate future configuration of the Cisco Meraki equipment - https://github.com/BanterBoy/CiscoMeraki

3rd Line Service Desk Technician

Jan 2018 - Jul 2018

Six Degrees Group

St. Katherine Docks, London

- Resolve complex technical incidents logged by clients in an efficient, professional, and consistent manner, this requires extremely thorough analytical skills drawing from my own personal experience. Triage multiple high complexity tickets for demanding clients in a variety of bespoke infrastructures. Diagnose but also make infrastructure design changes where required. Manage the change process and provide technical vetting for change controls to senior management prior to sending it to the client for approval. Document my work and provide regular technical briefings to senior management. Provide consistent communications to the end user and key customer stakeholders. Provide training and mentoring to 1st and 2nd line staff. Function as incident manager during Priority 1 and Major Incidents. Function as back up to the Service Desk team in monitoring and acting upon all channels of communication into the Service Desk; ensure a timely response to all communication in line with customer expectation and Service Desk SLAs and targets. Provide consultation to Account Managers and Pre-Sales for capacity planning and road-mapping.

Infrastructure Engineer

Feb 2017 - Dec 2017

FSI Cloud

Upminster, London

- As a member of the hosted infrastructure team, I provided 3rd line IT support to both internal and external customers by diagnosing and resolving issues with managed services in our private cloud environment. I also provided assistance to the internal IT team to support the smooth running of the business as a whole by troubleshooting both client and server machines, networking and telephony, and IT-related business practices. I take a proactive approach to reviewing and maintaining processes and solutions to ensure ISO9001 and ISO27001 conformance and general IT security best practice using resources such as regular internal and external vulnerability assessments, analysing SIEM data, and keeping abreast of developments in the threat landscape where relevant to our business. Role Summary: Supporting IaaS as part of key business systems for numerous international companies, this role requires the ability to react quickly to changes in state, and it is crucial to be proactive in maintaining system up-time; I followed a strict change control process, ensuring to make any adjustments with minimal or no downtime. Day-to-day I also analysed network performance to identify opportunities for optimisation and strengthening our security posture. Project Work: Planning and documenting a new solution to manage and maintain the company and client infrastructure more securely by enhancing the current design and implementing a number of key security changes. This design is to incorporate "Automation" into the structure, implementing the use of PowerShell allowing for structured deployment and management of both client and company domains. Adding automation to many of the current daily tasks in order to free up our engineers and speed up the deployment of new and existing solutions and also to ensure standardised build deployment and assurances towards compliance.As a member of the hosted infrastructure team, I provided 3rd line IT support to both internal and external customers by diagnosing and resolving issues with managed services in our private cloud environment. I also provided assistance to the internal IT team to support the smooth running of the business as a whole by troubleshooting both client and server machines, networking and telephony, and IT-related business practices. I take a proactive approach to reviewing and maintaining processes and solutions to ensure ISO9001 and ISO27001 conformance and general IT security best practice using resources such as regular internal and external vulnerability assessments, analysing SIEM data, and keeping abreast of developments in the threat landscape where relevant to our business. Role Summary: Supporting IaaS as part of key business systems for numerous international companies, this role requires the ability to react quickly to changes in state, and it is crucial to be proactive in maintaining system up-time; I followed a strict change control process, ensuring to make any adjustments with minimal or no downtime. Day-to-day I also analysed network performance to identify opportunities for optimisation and strengthening our security posture.

Network Architect | Webmaster | PCI Compliance Specialist

Mar 2008 - Sep 2016

Insure and Go Insurance Services Limited

Southend on Sea & Bristol

- Ownership of the company's WAN infrastructure and provision of 3rd line support ensuring the continuity of all network services and server systems within the company's infrastructure. Full management of server administration including specification, analysis, design, upgrade and migration with added responsibility for retaining compliance with card scheme mandates governing PCI DSS. Designing the local network based on the corporate technological platform and directives and liaising with the development teams to ensure the successful deployment of projects along with website and application service deployment and changes. Taking total control of site data security and resilience, backup, anti-virus and disaster recovery as well as advising on major network strategy development and deployment. Compiling system documentation/specifications and providing technical support and in-depth problem solving capabilities for seamless use of systems. Meticulously maintaining company public DNS servers and websites and establishing/monitoring support processes for a high availability to promote the health of websites. Provided education and training to stakeholders, customers and 3rd parties on PCI validation requirements Redesigned a WinTel infrastructure and network architecture to amalgamate the offices in Wales, Bristol, Southend and London into a single secure PCI-compliant network Integrated the Bristol, Southend, London and Wales infrastructure into the Mapfre Global WAN Repaired critical systems that were malfunctioning which required the migration of virtual systems between domains and virtual infrastructures Migrated the London infrastructure to the NGD data centre in Wales Conducted the virtualisation of all IT infrastructure and migration of these systems to the hosted data centre solution in Wales 1st point of contact on merchant PCI validation requirements and 3rd party compliance

IT Support Analyst

Feb 2008 - Mar 2008

Witan Jardine

13 Southampton Place, London

- I was responsible for ensuring that all the office users had access to all the network resources (Servers, Databases, Firewalls, VOIP etc) and to provide fixes and upgrades within the required internal SLA to ensure a minimum amount of downtime.

Infrastructure Manager

Aug 2004 - Jan 2008

IRIS Software Group

New St, London

- Infrastructure Manager with complete responsibility for the company networks and office systems across London, Bristol and Lymm with added accountability for team management comprising of 4 members of staff who ensured all office users had access to network resources and provided fixes / upgrades within the required internal SLA. Overall control of internal projects such as updating systems and sourcing solutions for different team requirements including migration to Windows 2003, upgrading the external support systems, providing a viable network solution for external remote support for clients and implementing a web-based terminal server solution for home working staff. Further achievements and duties as Infrastructure Manager involved: - Ensured a minimum amount of downtime to make the most efficient use of working hours - Acted as External Support Manager during absence - Coordinated and managed the 1st and 2nd line team members - Provided comprehensive and relevant staff training - Performed quality control checks on live and logged calls - Adopted a calm and professional approach when dealing with escalated customer complaints - Used applications and technologies including Microsoft Office, Microsoft Windows, Microsoft Exchange, IIS, TCP / IP, WINS, DNS, DHCP, Firewalls / Routers, VPN and remote access solutions, Microsoft SQL Server, Crystal Reports, Veritas Backup Exec and Dreamweaver MX

2nd Line Technical Support Analyst

Aug 2003 - Aug 2004

IRIS Software Group

New St, London

- 2nd Line Technical Support Analyst who offered advice and support to the client base of solicitors and legal firms covering all aspects of their software. Maintained office systems and network infrastructure and advised staff on how to get the best out of the office systems. - Produced a compact company website for the installation CDs - Maintained the support intranet for FAQs and fixes

Service Support Technician

Nov 2000 - Feb 2003

Callserve Communications

6-7 Harbour Exchange Square, London

- Service Support Technician who provided round-the-clock support for office systems, production systems and the voice / data network for Europe's largest internet telecommunications company. Additionally gave telephone and email support to customers and international distributors and compiled detailed instructions that were incorporated as templates into the online support pages and help desk support system. - Instrumental in installing and maintaining office equipment - Demonstrated excellent leadership skills when training new staff with regard to office systems - Extensively tested updated software in test and live environments on all Windows operating systems before going live to customers producing testing scripts for new versions of the software for future testing

Computer Support Technician

Aug 1994 - Nov 2000

Seetec

Main Road, Hockley, Essex

- Computer Support Technician primarily concerned with dealing and solving customer problems as well as maintaining customer networks remotely and on site. Played a key role in customer installations, building, configuring and installing computer systems. - Visited customer sites and trained them to use the in-house medical system as well as other Microsoft software supplied with the installation

Professional Skills

Top Skills

Elixir/Phoenix

Expert

Scalable and maintainable applications API Development and reliable package developer at Hex. Command line application development and Distributed Code development across remote nodes. Prominent in GenServer Processes and Supervisor Control over the GenServer in an application building process.

JavaScript/NodeJs

Advanced

JSON REST API development. Scalable Network Applications development. Full Stack Development with jade template engine. Good in the areas of Ajax requests,Document models, data visualisation, animations, plugin development. Knowledgeable in promises and closures resolving.

EmberJs

Advanced

Client API developement to build websites with rich and complex user interactions. Expertises in the areas of multilevel Routing and Multilevel Component handling. Self Non Destructive and re-usable Ember-Addon Development. Capable of building highly customizable Templates & Graphical Data Visualization.

Other Skills

C/C++ Python SASS Erlang CoffeScript Git Graphic Design Vfx Design Adobe

Portfolio

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Exlist

Extended List Library

Source Code
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GenTcp

TCP Client & Server Implementation

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Typex

Data Type Checke

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Elixir CLI Animations

Spinnig Animations for Command Line Applications

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IsX

Data Validator

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Coterie

Slack Client

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Printex

Color Log Printer

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Banana

Asana Client

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Kritus

Base Camp Client

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Guardian Auth

The Guardian Authentication Template Using Ecto/Postgresql Elixir Phoenix [ User Authentication ]

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Mp3 Parser

Command Line Application for parsing the Mp3 file

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GenCoap

Elixir CoAP Protocol Library

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TB10

Telegram Client

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Contact Me

This is me!

Luke Leigh

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I can help with the following:

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Drop me line at [email protected] or call me at 07977 532524