System Administrator – Cloud AWS

Senior Cloud Systems Administrator – South London – £65,000 – AWS. Cloud

The Role

The Senior Cloud Systems Administrator role is responsible for managing the companies public cloud systems on AWS, working closely and collaboratively with our web developers to develop and maintain deployment, monitor, tune, report, secure and the life-cycle management solutions for our hosted environments.

Our DevOps team builds and maintains our next generation micro service API’s, WordPress management plugins, performance monitoring platform and systems automation tools around Amazon Web Services, therefore, the successful candidate must have a minimum of 3 years’ experience maintaining large AWS based SaaS solutions to be considered for this position.

Key Accountabilities:

• Daily administration and support of various hosting and infrastructure environments
• Deploying, automating, maintaining and managing AWS cloud-based production systems, to ensure the availability, performance, scalability and security of these systems.
• Managing EC2 lunch configurations and autoscaling groups using a broad range of AWS technologies
• Continuous improvement for technology and processes for our SaaS environments
• Performing backup operations, ensuring all required file systems and system data are successfully backed up to the appropriate media or location.
• Auditing data backups for accuracy, testing restore capabilities, have the responsibility for customer data redundancy.
• Configure and fine tune cloud infrastructure systems
• Install and configure virtual cloud instances
• Implementing infrastructure enhancements to improve the reliability and performance of systems
• Conducting routine audits of infrastructure to ensure compliance with established standards, policies, configuration and security guidelines
• React to, act on, and manage incoming requests and monitoring alarms, prioritising according to business needs
• Support daily server and network operations including server patching, upgrades, and deployments
• Ensuring long-term requirements of systems operations and administration are identified and submitted for considerations to IT senior managers.

Key Results Areas:

• Support and maintain the service infrastructure with appropriate security and privacy controls and meets users’ needs
• Provide documentation and training materials to ensure knowledge retention
• Provide advice and assurance about the work of junior colleagues.
• Deliver new functionality to service platforms, with an emphasis on platform independence, automation and cost-benefit optimisation
• Ensure that governance rules, particularly security standards are always upheld.
• Ensure maximum uptime / availability of the AWS environment.
• Monitors and communicates system performance metrics and works with internal staff and 3rd party vendors to resolve any issues.

IT, Administrative and Organisational Skills:

• Experience with security controls i.e. VPNs, encryption & key/certificate management, endpoint protection, virtual firewalls/ACLs/NSGs, setting up bastion nodes, etc
• Experience connecting cloud infrastructure to on-prem networks (VPNs, tunnelling, AD connectors, routing)
• Experience in architecture/engineering of cloud-based distribution systems
• Background in Distributed Systems, Databases, Security, Networking & Load Balancing, Monitoring, Scripting & Automation
• Excellent planning, organisational and time management skills, with the ability to work under pressure and to tight deadlines and to demonstrate an effective and resourceful approach to addressing issues.

Qualifications and Experience

• 3-5 years’ experience with using a broad range of AWS technologies to develop and maintain an AWS based cloud solution, with an emphasis on best practice cloud security.
• 3-5 years’ experience administering both Linux and Microsoft cloud-based environments and respective hosted application(s) is an advantage
• AWS Certification, such as AWS Solutions Architect, SysOps Administrator or DevOps Engineer, is a major asset
• 3-5 years’ experience with fundamental internet protocols such as DNS, HTTP(S) TCP/IP networks, routers, firewalls DNS, DHCP and Load Balancing
• Solid experience as a DevOps Engineer in a 24×7 uptime Amazon AWS environment, including automation experience with configuration management tools.
• Experience working with common DevOps tools, such as, Consul, Splunk and Ansible
• Experience in Build and Code Deployment functions via Jenkins and Gitlab
• Solid experience in Database Administration and strong understanding of Cloud native DBs (AWS Aurora, DynamoDB, etc).
• Experience with system health monitoring and optimising performance.
• Experience with threat modelling, especially for web application and web APIs
• Ability to analyse and resolve complex infrastructure resource and application deployment issues.
• Knowledge of software containerisation platforms like Docker and container orchestration tools like Kubernetes and Docker Swarm.
• Experience installing, configuring, architecting, and managing website CMS’s for high availability using varnish caching in both a Windows and Linux environment

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