Tim Harrison

[email protected]

Aim: To use my technical expertise and excellent communication skills to help a team achieve success.

Key Skills

Project Management: Consultancy, Office 365 Migrations, P2V (Physical > Virtual Server Migrations), Brand Development (Inc Website, Corporate Branding, Marketing Campaigns) working to tight Deadlines with close Customer contact. Understanding of App Development processes (Agile) and different release methods (Canary,Blue / Green).

Communication Skills: Strong communication skills both written and verbal, both in team leadership and Customer facing account management to key stakeholders and budget owners.

DevOps: CI/CD (Gitlab Pipelines / CodeFresh / Teamcity / Jenkins Scripted Pipelines), Ansible, Build Server management (Teamcity / Jenkins), Development Pipelines (From DevOps side), Docker (docker,docker-compose, repository management), Kubernetes (Helm, ISTIO, Velero Backups, Rancher, StorageOS, MetalLB, EKS, GKE, Rook/Ceph, GlusterFS), Environment Testing (Stability, redundancy on failures, capacity - Including automatic scaling), Atlassian Products (Advanced Jira management - Projects, Workflows, Automation & Confluence Management).

Network Management: Physical Networking, TCP/IP, VLAN, DHCP (Windows, linux DHCPD), DNS (Windows, Linux BIND), Cisco, Juniper, Wireless (Cisco, Ubiquiti), SNMP, Log management (ELK (Self Hosted and Elastic Cloud), Graylog), VPN (Openvpn, L2TP/IPsec), DNS and Domain Management, SSL Certificates (Including LetsEncrypt), Two Factor Authentication (Duo Mobile, Google Authenticator), Network Security, Firewalls (Cisco, Pfsense).

Server Management: Physical Hardware Management (Purchasing, Hardware + Software RAID), Virtualisation (Vmware, Hyper-V, KVM), Windows Server (2002-2019), Linux (Ubuntu, Redhat, CentOS), backups / Disaster Recovery (Inc Acronis, VMWare, Windows Server Backup), Kubernetes, Docker, docker-compose, Monitoring (Nagios, Prometheus), Databases (SQL, MySQL, Mongodb, redis, redis-cluster), Log Management (rsyslog, Windows Events). Cloud hosted solutions (AWS, Azure, GCP, Digital Ocean).

Sysadmin / Operations: Office 365 Config and Management (Exchange Online, Microsoft Teams), Google for Business (Configuration and Management), Slack (Including writing Integrations), Active Directory (Configuration and Management).

Development/Coding: Bash, Javascript, Python, Powershell, HTML, CSS, Code Versioning (Gitlab, Github, SVN), APIs.

Cloud Environments: I have 5 years experience working with AWS (EC2, S3, Cloudfront, EKS, IAM, EFS, Storage Gateway, Load Balancers, Autoscaling Groups, RDS, Cloudtrail, Cloudwatch, EKS). I am also in the process of completing my AWS Solution Architect training and aim to acheive the certification in the following Months. I also have experience working with GCP (Including GKE, Networking), Azure (limited) and other smaller Cloud Providers (Scaleway, Digital Ocean etc)

Achievements

Consultancy - Office 365 Migration: Worked with a local charity to advise on the upgrade from their legacy POP based email solution. From this, I completed 0-Downtime Migration of 30 Mailboxes to Office 365 and migration from an on premise storage solution to Onedrive.

Network and Server Management: Managed company servers, network, Cloud hosted servers (Including 24/7 Support). Replaced Legacy hardware with fully virtualised environment and resolved longstanding issues. Set up an Intranet system for Server and Network Management.

Set up Business and Tech Article Website: Set up my own Business creating Websites for clients, offering Consultancy and one-off projects. My website for articles based on my experience working with Linux servers and various applications consistently gets >500 Unique visitors per week.

Bespoke Website with Database: Wrote a web application based in Python for Music Management startup, including Python Web UI (With account permissions), database backend (to Cloud hosted Database).

Employment History

Xara LTD (Jan 2017 - Present) Senior Sysadmin / Devops Team Lead: Running a team managing local network (Servers, Desktops, Physical Network), 24/7 support for Production system, Project planning (Server Upgrades, Virtualisation, Cloud Migrations) and supporting internal staff, cluster of web servers. Working to delivery schedule to complete development tasks efficiently to cut expenditure while ensuring quality of service.

In this role I have virtualised all in-house servers which were previously bare-metal and migrated a large number of internal services to Docker / Kubernetes setup (Both in-house and AWS cloud hosted in EKS / EC2 / S3).

I have lead the building of our internal DevOps team focusing on migrating services to Kubernetes (Including backups, monitoring, deployment and scaling) and assisting Developers to focus on coding by implementing CI/CD processes (Taking on existing Teamcity implementation and migration to Jenkins). A large number of internal Sysadmin functionality has been migrated to Automated Tasks, allowing for the Sysadmin Team to focus on Projects and Team Support.

iQuda (Jan 2011 - Jan 2017) Various Roles (Service Desk Management / Level 3 Technician): Rose quickly through the company, starting as a Web Developer before starting in Tech Support as a Level 1 Technician, moving through to Level 3 then onto Servicedesk Management and Project planning. This role included implementing and improving on processes and procedures, Customer account management and Reporting for Client contacts and internal management.

Education

AWS Solution Architect: I am currently working on my AWS Solutions Architect training and aim to complete the certification in the following Months.

Additional Courses: Udemy Courses in ITIL, Python, Kubernetes.

Parmiter's School: A Levels in Sociology, History, IT and English

About Me

I am a self-motivated team player with experience in both heavily technical roles and client facing account management roles. I am a good communicator (both written and verbal) and have an ability to form close relationships with internal team and external shareholders.

I am flexible with working hours and travel and have held a full, clean UK driving license for >10 Years.

I am strong technically, with the ability to make strategic decisions under time and budget constraints and execute reliably.

Contact Details

+44 7872599064

[email protected]

https://tjth.co

Twitter

LinkedIn

Github

Skill Rating

Network Management:

Project Management:

Server Management:

Coding:

Hobbies:

While away from the Computer I spend my time working on DIY projects around the house and going to the gym.

In the evenings I am working on a project combining my skills using and managing kubernetes with learning Javascript to build a Kubernetes hosted online application including Client + Middleware across multiple Microservices.