Linux Systems Administration
Extensive experience with various Linux distributions including RedHat, Debian, Ubuntu, and UCS Linux. Proficient in system configuration, management, and troubleshooting.
DevOps and Cloud Infrastructure
Expertise in cloud-init, Git/Bitbucket, QEMU, KVM, Terraform with AWS (EC2, S3, RDS, Route53, ELB, IAM, CloudWatch, λ functions). Skilled in Ansible, Puppet, and Jenkins for automation and CI/CD.
Network and Security
Proficient in TCP/IP and IPv6 protocols, VLANs, VPNs, and various network services. Strong background in security implementations including ModSecurity, OWASP CRS, and PCI/DSS Compliance.
Virtualization and Containerization
Skilled in virtualization technologies and container orchestration, including experience with VMWare and exposure to Docker.
Database Management
Proficient in MySQL and familiar with other database systems used in various projects throughout career.
Programming and Scripting
Competent in Bash, Python scripting, and familiar with Puppet, Perl, and Prolog for automation and system management tasks.
Web Services and Applications
Experience with web servers like Nginx/Apache2, and application servers such as Tomcat. Familiar with load balancing and high availability configurations.
Project history
11/2023
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05/2024
Senior LDAP Engineer
Klarna Bank AB
Supported global LDAP directory, built KVM images for LDAP infrastructure, and maintained CI/CD pipelines for AWS infrastructure.
06/2022
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11/2023
Senior Linux Engineer
Arm Holdings plc
Rationalized LDAP group structure, managed QEMU sandboxed LDAP servers, responsible for HPC clusters, and designed global Exim mail clusters.
04/2022
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06/2022
Senior Linux Engineer
Medical Research Council (Biostatistics)
Rebuilt LDAP directory, automated VM generation, re-engineered NFS/AutoFS, and provided support for 18 months.
01/2022
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03/2022
AWS DevOps Engineer
Department for Work and Pensions (Universal Credit)
Short-term contract role as AWS DevOps Engineer.
06/2021
-
10/2021
AWS DevOps Engineer
JRNI (BookingBug)
Migrated staging and production platform to AWS Nitro, scripted with Python Boto3 and Ansible.
09/2020
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04/2021
Senior Systems Engineer
Nominet UK
Managed .uk domains, maintained corporate website, rebuilt environments with Ansible and VMWare, and handled Linux security.
09/2019
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05/2020
DevOps Systems Engineer
Elsevier
Developed cloud-based applications using EC2, S3 & RDS, managed with Terraform and created Jenkins pipelines.
08/2018
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07/2019
DevOps Systems Engineer
Cobalt Telephone Technologies
Managed PCI/DSS projects, supported Terraform AWS/Docker builds, and maintained Linux Apache/NGinx infrastructure.
03/2018
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07/2018
DevOps Engineer
Ocean Mind
Short-term contract as DevOps Engineer.
10/2017
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03/2018
Senior Systems Engineer
Oracle Cloud Operations
Supported Oracle's Linux and Solaris Cloud Infrastructure, deployed services using Ansible.
07/2015
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06/2017
Linux Security Consultant
The University of Reading
Deployed ModSecurity with OWASP CRS, automated VM builds, upgraded systems, and handled security breaches.
07/2014
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06/2015
Senior Systems Administrator
Formula E Operations
Built Ubuntu LTS data centre, managed microservices, and handled networking in international locations.
10/2013
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01/2014
Senior Systems Administrator
Redbee Media (Access Services)
Short-term contract as Senior Systems Administrator.
06/2013
-
09/2013
Senior Systems Administrator
Rank Interactive
Short-term contract as Senior Systems Administrator.
01/2013
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06/2013
Senior Systems Administrator
My Wealth Cloud
Short-term contract as Senior Systems Administrator.
03/2012
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09/2012
Senior Systems Administrator
Oxford University Computer Services
Short-term contract as Senior Systems Administrator.
04/2011
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11/2011
Senior Systems Administrator
OpenBet Technologies
Short-term contract as Senior Systems Administrator.
08/2010
-
04/2011
Senior Systems Administrator
Cisco Systems (Communication and Collaboration)
Short-term contract as Senior Systems Administrator.
Local Availability
Only available for remote work
Experienced Systems and DevOps Infrastructure Engineer
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