Senior DevOps Engineer

Location: Hybrid – Crawley or Peterborough

Department: Engineering / Platform

Reports To: VP of Engineering

Employment Type: Full-time

Job Summary

We are seeking a Senior DevOps Engineer with a deep understanding of AWS cloud infrastructure, Infrastructure-as-Code (IaC) tooling such as Terraform, and configuration management using Ansible. The ideal candidate will be a self-starter, passionate about Site Reliability Engineering (SRE) principles, and thrive in collaborative environments.

You will play a pivotal role in automating infrastructure, improving reliability and scalability, and ensuring smooth CI/CD pipelines across multiple environments. You'll work closely with software engineering, and security teams to drive platform excellence.

Key Responsibilities

Infrastructure & Automation

· Design, build, and manage scalable, secure, and resilient infrastructure on AWS using Terraform (modularized, reusable components).

· Implement configuration management solutions using Ansible, including playbook development, inventory structuring, and role-based automation.

· Manage secrets securely using services such as AWS Secrets Manager or HashiCorp Vault.

SRE & Reliability

· Implement robust monitoring, alerting, and observability tooling (e.g., CloudWatch, Prometheus, Grafana, Datadog).

· Participate in incident response, root cause analysis, and resilience improvements.

CI/CD & Platform Engineering

· Maintain and evolve CI/CD pipelines using tools such as GitHub Actions, Bitbucket Pipelines, or Jenkins.

· Automate deployments for container-based workloads on ECS (Fargate), or Lambda, and manage supporting infrastructure.

· Collaborate with development teams to optimize build/deploy cycles and reduce lead time for changes.

Security & Compliance

· Ensure security best practices are embedded into infrastructure provisioning and pipeline execution.

· Support compliance and auditing by implementing guardrails and controls as code (e.g., AWS Config, SCPs, IAM policy management).

Required Skills and Experience

Technical Expertise

· 5+ years in DevOps, SRE, or Cloud Engineering roles.

· Expertise in AWS core services: EC2, IAM, VPC, ECS/Fargate, CloudFormation, CloudWatch, RDS, DynamoDB, S3, Lambda.

· Strong proficiency in Terraform (HCL) – including workspaces, modules, and Terraform Cloud or similar.

· Ansible experience – developing roles, dynamic inventories, managing remote configurations.

· Strong scripting knowledge (Bash, Python, or Go).

· Experience with container orchestration and deployment (Docker, ECS, or Kubernetes).

· Proficient with GitOps or IaC-based workflows.

SRE Mindset

· Familiarity with Google SRE practices, particularly around reliability, observability, and operational excellence.

· Understanding of systems reliability metrics and associated tooling.

Soft Skills & Behaviours

· Self-driven with a bias toward action and ownership.

· Excellent communicator, able to collaborate across disciplines and levels of technical understanding.

· Experience working as part of a cross-functional team.

· Comfortable working in agile environments (Scrum/Kanban).

Preferred Qualifications

· AWS certification (e.g., Solutions Architect – Professional, DevOps Engineer – Professional).

· Exposure to IaC tools (Terraform, Pulumi), or configuration management (Ansible, Puppet).

· Experience in multi-cloud or hybrid-cloud environments (e.g., Azure, on-prem).

· Background in high-availability environments.