Senior DevOps Engineer
First seen by Alion on Oct 27, 2026.
Description
The Client is one of the majour insurance companies in the UK.
This role supports a high-priority risk reduction programme for the Green Flag MyCro Platform, a complex technology estate built on AWS. Platform SMEs have already designed remediation plans and started putting them into effect. The DevOps engineer we’re looking for will help speed up delivery across key areas: logging hygiene, network security for key data stores, VPC egress control, Cognito-based access management and a rebuild of the platform’s deployment pipelines.
Requirements
Strong hands-on AWS DevOps experience in large-scale production environments
AWS deployment tooling, including AWS CodeBuild
AWS CloudWatch Logs: retention and encryption policies
AWS networking: VPC, subnets, Security Groups, egress control
Amazon OpenSearch, AWS Lambda, Amazon ECS
Experience with AWS Cognito and RBAC
Python knowledge would be extremely advantageous
Proven delivery of risk reduction initiatives
Experience making complex network changes with zero downtime
Able to work autonomously, manage stakeholders, and take ownership of a workstream
Good written and verbal English communication skills.
Job responsibilities
Quickly align with and carry out agreed remediation plans alongside platform SMEs
Drive measurable reduction of operational, security and delivery risk
Rebuild the platform’s deployment pipelines
Implement log retention and encryption policies in CloudWatch
Restrict subnet-level access to internal OpenSearch indexes
Reconfigure VPC and subnet setup to control Lambda and ECS egress, with zero downtime
Implement roles and access for the customer agent portal using AWS Cognito
Update a large number of APIs safely and on time
Work as part of an engineering squad
Take ownership of a workstream after SME handover and drive it to completion