Senior Platform Engineer in Chelmsford

Location: Remote, but requirement to meet up once a month for in-person collaboration day (UK based).

About Akixi: Akixi is a fast-growing SaaS analytics company delivering real-time and historical insights for cloud-based communication platforms, including Microsoft Teams, Cisco BroadWorks, and Webex Calling. Our analytics help businesses enhance customer experience, optimize productivity, and drive performance across voice and collaboration channels.

Job Summary: We are seeking a Senior Platform 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:

• 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.
• Implement robust monitoring, alerting, and observability tooling (e.g., CloudWatch, Prometheus, Grafana, Datadog).
• Participate in incident response, root cause analysis, and resilience improvements.
• 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.
• 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).
• Some out-of-hours work is required to maintain the production systems and also will be part of out-of-hours critical ticket rota.

Required Skills & Experience:

• 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.
• 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).