My CV

mezbaur_rahman.md

Mezbaur Rahman

Nationality: British
Location: London
LinkedIn

About

Confident and ambitious Platform Engineer with over four years experience in Cloud Computing and DevOps. Also fit the role of a Scrum master within the Development alongside being a DevOps engineer. Previously, a Systems Engineers and Linux Administrator (eight years) with experience in running a variety of Operating Systems incliding Linux, CentOS and Ubuntu. I have passion for Cloud Computing, Continuous Deployment, Monitoring, Big Data and Data Science. My spare time is spent learning about Openshift, Kubernetes, Jenkins and Data Science.

Objective

To obtain a position working with Cloud computing, DevOps and Container orchestration technologies that leverages my skills, experience, and accomplishments as a DevOps/Platform/SRE.

Technical Profile

• Cloud: AWS.
• Operating systems: Ubuntu, Linux Centos / Redhat, Debian.
• Programming: Bash, Python, Docker, Vagrant, SQL
• Monitoring: DataDog, Hosted Graphite/Grafana, Pingdom, Nagios, NewRelic, AppDynamics, Prometheus, Grafana.
• Databases: AWS DynamoDB, MySQL, PostgreSQL.
• Data Aggregation/Big Data: Logstash, Elasticsearch, Kibana, HDFS, Apache Storm, Redis, Apache Solr, XML, JSON, YAML.
• Message Queue: RabbitMQ, ActiveMQ, Apache Kafka.
• Config Management/CI/CD: Ansible, Jenkins, Github Actions and FluxCD.
• Infrastructure Management: Terraform, Packer.
• Others: Jira, Confluence.

Certifications and Education

• BEng (Hons) Network Technology (First Class), Middlesex University, London (2005).
• Red Hat Certified System Administrator (Red Hat Enterprise Linux 5)- December 2009

Professional Experience

Senior Platform Engineer

April 2021 till present - Matchesfashion

Specialities: AWS, EKS (Elastic Kubernetes Service), Terraform, Jenkins, GitHub Actions, FluxCD and Helm.

• Deployment of microservices using FluxCD and Helm charts on Elastic Kubernetes Service (EKS).
• Using Infrastructure-as-Code tool Terraform to build Terrafrom Modules and Services.
• Using GitHub Actions for building CI/CD workflows.
• Monitor and improve platform services and processes, working on tackling tech-debts and cloud usage costs.
• Working with engineering leads to ensure a stable infrastructure that enables on-demand deployments.

Senior Platform Engineer

November 2019 till March 2021 - Legal and General Investment Management Ltd

Specialities: AWS, Openshift (Kubernetes), Terraform, Jenkins, GitHub Action, Prometheus and Grafana.

I moved to the newly formed central Platform Engineering Team in LGIM. The purpose of this team is to provide orchestrate Cloud Native Services to be used by various feature teams. I am currently working on these following projects:

• Building platform services to be used by various feature teams.
• Deployment and adoption of Openshift 4.
• Using Openshift to orchestrate the deployment, scaling and management of Containers.
• Using Jenkins pipelines to drive all micro services builds out to the Docker registry and then deployed to Kubernetes, Created Pods and managed using Openshift.
• Introduce GitHub Actions as CI/CD tool for adoption across various feature teams.

Senior DevOps Engineer

September 2018 till October 2019 - Legal and General Digital

Specialities: AWS, Openshift, Terraform, Ansible, Jenkins, Prometheus.

Working with a newly assembled development team in order to deliver a new pensions and investment wrapper product.

Things I have specifically worked on:

• Building CI/CD build pipelines for the Frontend SPA (Angular) using Jenkins.
• Creating CI/CD build pipeline for the Backend Team (java platform).
• Deploying microservices in Dev, QA and UAT environments on Openshift platform.
• Working with the Production Support Team for setting up the Live environment.
• Experience with container-based deployments using Docker, working with Docker images, Docker Hub and Docker-registries and Openshift.
• Using Openshift to orchestrate the deployment, scaling and management of Containers.
• Troubleshooting and fixing deployment issues in Openshift.
• Writing DevOps related documentation and helper guide on Confluence.

Senior DevOps and Scrum Master

April 2018 till August 2018 - GameAnalytics Ltd

DevOps Engineer

April 2017 till March 2018 - GameAnalytics Ltd

• Build and administer instances and services in AWS for staging and live environments.
• Build and enhance automation tooling of servers and services on AWS platform using Ansible.
• Script, test and deploy new versions of environments and target infrastructures.
• Work with Backend Engineers on Infrastructure development, improvement and automation.
• Work on infrastructure design for existing services and new sevice integration.
• Create documentation of current and newly implemented environments with associated troubleshooting steps.
• Propose and implement plans for managing AWS costs.
• Coach and manage various development teams on Agile/Scrum process.
• Participate in on-call rota.

Technologies used: Ubuntu, Amazon Web Services (VPC, ec2, s3, RDS, CloudWatch, ElastiCache, CloudFront, Redshift, EMR, Lambda, DynamoDB, route53), git, github, Jira, Confluence, Jenkins, Ansible, Lambda, Bash, Python.

Cloud Infrastructure Engineer

December 2014 till April 2017 - Grainger Global Online - previously Razor Occam Ltd (Grainger Plc)

Achievements Since the 3rd quarter of 2015 and till the first quarter of 2016, I have been part of the Scrum Team for the successful deployment of new e-commerce platforms of two subsidiaries (cromwell.co.uk and zoro.de) of Grainger Plc. I have led a team of System Administrators and Infrastructure Developers to build the AWS platform for Cromwell's new e-commerce site. Alongside, I worked with external engineers and developers to build the new architecture on AWS for Zoro EU.

• Build and Administer instances and services in the AWS for Development, QA, and Production environments.
• Script, test and deploy new versions of environments and target infrastructures.
• Support development and QA across various projects to satisfy their day to day needs.
• Study and implement new tools for increased productivity, security, reliability and performance.
• Develop tools and services useful in DevOps environments such as performance monitoring, security monitoring, deployment/configuration, continuous integration/build servers and cloud resource creation scripts.
• Create documentation of current and newly implemented environments with associated troubleshooting steps.
• Coach and Manage DevOps team on Agile/Scum process.
• Architect AWS platform for e-commerce site deployment.
• Investigate, plan and execute process on site improvement, monitoring, APM, log aggregation etc

Technologies used: Ubuntu, Amazon Web Services (VPC, ec2, s3, SES, SNS, SQS, RDS, CloudWatch, ElastiCache, CloudFront, Lambda, DynamoDB), Nginx, git, BitBucket, Jira, Confluence, Jenkins, DataDog, Zabbix, Splunk, ElasticSearch, Ansible, Serverless, Lambda, Bash, Python, RabbitMQ, Vagrant, Docker.

System Administrator

August 2013 till December 2014 - London Marketing Ltd

• Responsible for the overall administration of the LondonTown’s web/LAMP infrastructure.
• Install, configure and maintain CentOS and Debian servers for the Live and Development platforms.
• Maintain Dell Equallogic SAN architecture.
• Work closely with developers for troubleshooting complicated system related issues.
• Actively involved with development of systems where SysAdmin related participation is the key.
• Maintain servers, switches, firewalls, load balancers etc at the DataCentre.
• Advise architecture and product development as well as propose for improvement of infrastructure/site availability, reliability and performance.
• Manage and deliver DevOps projects from inception to final delivery.

Technologies used: CentOS, Debian, Apache, Php5, Zabbix, Sendmail, iptables, SFTP, Bash, VMWare, Zeus, MySQL, Percona, Amazon AWS, NewRelic, SumoLogic, Confluence,Jira.

Linux System Administrator

September 2012 till July 2013 - Informa Group Plc

• Planning and supporting Linux and Open source software based web systems and databases in use for Internet services.
• Providing hands on 3rd level support for operational problems and issues referred by the Technical Services and other technical support teams.
• Managing technical projects, external resources and 3rd party suppliers as appropriate.
• Providing technical support for LINUX, APACHE, SENDMAIL, TOMCAT, NAGIOS and other application for all Internet services.
• Planning, configuration and implementation of new servers and upgrades to existing ones.
• Maintenance of server backup schedules to ensure all data is secure and recoverable.
• Maintenance of up to date documentation, plans and projects.

Technologies Used: Red Hat, CentOS, Apache, Tomcat, Nagios, Sendmail, Amanda, VMWare, Ldiectord, MySQL, DRBD, NFS, OpenLDAP and Bash.

Systems Support Engineer

November 2011 till August 2012 - ASPone Limited

• Performing Install and Configuration of software to provided environment
• Investigating issues and perform troubleshooting acting as the 2nd line support and using tools/logs as necessary
• Build and deploy cloud servers on Rackspace and Amazon AWS for production and development purposes.
• Liaising with 3rd line support (development) for resolution of the issues as necessary
• Assisting hardware and software procurement based on the requirements
• Creating maintenance plans and perform housekeeping on servers and applications
• Performing maintenance during out of service hours
• Setting monitoring for production/demo and other necessary services

Technologies Used: Red Hat, CentOS and Windows Server 2008, exist-DB, JBoss, Apache, Tomcat, Jetty, ANT, SVN, Amazon AWS.

Services Support Engineer

March 2010 till October 2011 - Lombard Technology Services Ltd (RBS Group)

Achievements

• Managed SAN project, involving core Linux, Oracle and SAN related skills, to transfer a storage system of Oracle databases and file servers from MSA1000 to EVA4400. Designed and implemented HP EVA storage including Virtual RAID.

• Manage and administer Production, Test and Development servers RHEL 5 servers to ensure uptime, capacity management and troubleshoot problems.

• Manage Oracle Databases (10g and 11i) on RHEL 5 including installation, maintenance, support, monitoring and issue resolution.

• Perform database transfer and backup, tablespace management, schema management and archive log management.

• Used Oracle Heterogeneous Connectivity Services to connect Oracle with IBM AS400 system.

• Manage and administer SAN Fibre Channel Storage system I.e creation of Zones and alias, patching and upgrading Brocade switches.

• Manage SAN Storage Network built with HP EVA4400 and MSA 1000 storage system.

Technologies Used: Red Hat Enterprise Linux 5, Oracle 10 and 11g, SAN (HP EVA 4400 and MSA1000), Brocade Switches, Windows Server 2008, Exchange Server 2007, Hyper V, EMC Networker, Backup Exec, HP Proliant DL Servers.

IT System Administrator (Contract)

January 2010 till February 2010 - totalFOOD UK Ltd

Systems Administrator

January 2008 till Nov 2009 - BMJ (British Medical Journal) Publishing Group

• Administered production, staging and development (Solaris 8 & 10 and Red Hat Enterprise Linux 4) servers. ie, ensure uptime, capacity, compile/install software or wield package manager as required, troubleshoot problems and install OS.
• Installed, configured and managed web applications that use Apache and Tomcat servers.
• Implemented and maintained software build systems using ANT, CruiseControl & Surround.
• Performed software release to Dev, QA and Live environments.
• Assisted the development team with the web applications for the Dev, Staging and Live environments.

Technologies used: Solaris 10, Solaris Zones, Red Hat Enterprise Linux 4, NAS, Apache, Tomcat, ANT, Surround, CruiseControl, XML, MySQL, Zope/Plone, Shell Scripting, MediaWiki, Cygwin, Selenium, J2EE, Solaris Container, Vmware.

System Administrator

May 2006 till December 2007 - GameAccount Global Ltd

• Managed Live, QA and Development environments which include Apache, Tomcat and JBoss servers.
• Administered all Live, QA and Development servers based on Redhat Enterprise Linux 4 platform.
• Provided support for the Live, QA and Development sites as a member of the Support Team
• Deployed software to the Live and QA environments.

Data Centre Support Technician (Contract)

December 2005 till April 2006 - Redbus Interhouse (UK) Limited

PC Support Analyst (Work Placement)

May 2003 till August 2004 - Bestway Cash & Carry Limited {"mode":"full","isActive":false}

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