Senior DevOps Engineer

This role is based in our 240 Blackfriars, London office. We’re looking for a Senior DevOps Engineer to own and evolve our Windows-based infrastructure running in AWS. This role is focused on operational excellence, security, automation, and developer enablement. You’ll work closely with product engineering teams to ensure systems are secure, reliable, and easy to deploy, while driving improvements in CI/CD, monitoring, and infrastructure automation. What You’ll Do Manage and operate Windows Server environments in AWS (EC2), ensuring high availability and performance Own patching, vulnerability management, and system hardening processes across Windows workloads Monitor and respond to security events, working closely with security teams to remediate risks Build and maintain CI/CD pipelines to support consistent, reliable application deployments Implement and improve Infrastructure as Code (IaC) using Terraform or similar tools Develop automation using PowerShell and scripting to reduce manual operational overhead Design and maintain monitoring, alerting, and logging systems to ensure system health Partner with product engineering teams to troubleshoot application and infrastructure issues Support releases and ensure smooth deployment processes across environments Participate in on-call rotations and act as an escalation point for production incidents Lead or contribute to incident response and post-mortems, driving long-term improvements Core Tech Stack AWS (Primary) EC2 (Windows workloads), VPC, IAM S3, EBS, Systems Manager (SSM) CloudWatch (or integration with tools like Datadog) Load Balancers (ALB/NLB) Infrastructure & Automation Terraform (preferred) or CloudFormation CI/CD: GitLab CI, GitHub Actions, Jenkins, or similar Microsoft / Windows Windows Server administration MS SQL Server (standalone and AWS RDS) Active Directory / identity integration IIS and .NET application hosting PowerShell scripting and automation Observability & Operations Monitoring and alerting platforms (Datadog, CloudWatch, etc.) Logging and incident response tooling What We’re Looking For Extensive experience in DevOps, Cloud Engineering, or Systems Engineering Strong hands-on experience with AWS in production environments Proven experience managing Windows Server infrastructure (preferably in AWS) Experience with patching, vulnerability remediation, and security event handling Strong experience building and maintaining CI/CD pipelines Experience with Infrastructure as Code (Terraform strongly preferred) Strong scripting skills in PowerShell Experience with monitoring, alerting, and troubleshooting production systems Ability to collaborate closely with engineering teams and support production workloads Nice to Have Experience with Active Directory integration in AWS (Managed AD, AD Connector) Familiarity with Sitecore CMS, other .NET applications and IIS in production Experience with AWS Systems Manager (SSM) for patching and automation Exposure to containerisation (Docker/Kubernetes) Experience with Datadog or OpenTelemetry-based observability Understanding of FinOps and cloud cost optimisation What Makes You Successful You prioritise automation, reliability, and repeatability in everything you build You take ownership of systems and drive issues through resolution You’re comfortable working in production environments and handling incidents You collaborate effectively with engineering and security teams You continuously look for ways to reduce toil and improve system stability We believe that great things happen when people connect face-to-face. That's why we work in-person with each other, or with customers and partners, three days a week or more. When you’re not spending time together in one of our offices or other workplaces – like at an Informa event – you get the flexibility and support to work from home or remotely. TechTarget, Inc., doing business as Informa TechTarget, including its subsidiaries is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. We strictly prohibit and do not tolerate discrimination against employees, applicants, or any other covered persons because of race, color, sex (including pregnancy), age, national origin or ancestry, ethnicity, religion, creed, sexual orientation, gender identity or expression, status as a veteran, and basis of disability or any other federal, state or local protected class. This policy applies to all terms and conditions of employment, including, but not limited to, hiring, training, promotion, discipline, compensation, benefits, and termination of employment. If you would like to request reasonable adjustments or accommodations to assist your participation in the hiring process and, or in the advertised position, please inform the appropriate Talent Acquisition Partner for the role once they have been in touch. Your request will be reviewed and considered in confidence. Informa TechTarget complies with t…