Senior DevOps Engineer Cloud & MongoDB & Terraform, Remote, Full-Time HR154

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About the Role We are looking for a Senior DevOps Engineer with strong cloud infrastructure expertise (GCP / AWS / Azure) using Terraform and deep MongoDB Atlas ownership experience to design, operate, and scale a cloud-native infrastructure powering a large enterprise SaaS platform.

This is a high-ownership, architecture-level role, not just execution. You will be responsible for designing and running production systems end-to-end, with a particular focus on database infrastructure (MongoDB Atlas) and scalable cloud environments. You will work in a fully remote, async-first environment, collaborating closely with engineering teams to ensure high availability, performance, and operational excellence across multiple environments.

Responsibilities

• Design, implement, and operate cloud-native infrastructure across GCP, AWS, or Azure using Terraform.
• Take full ownership of MongoDB Atlas in production, including:
• Cluster architecture and scaling
• Replication and high availability
• Backup and disaster recovery strategies
• Performance tuning and query optimisation
• Security and access control
• Architect and manage containerised and serverless workloads (e.g., Cloud Run, ECS, Kubernetes, or equivalents).
• Design and operate event-driven systems (e.g., Pub/Sub, SQS/SNS, EventBridge, or equivalents).
• Build and maintain CI/CD pipelines with a strong focus on automation, reliability, and scalability.
• Develop reusable Infrastructure as Code (Terraform) modules and manage multi-environment setups.
• Collaborate with engineering teams on system architecture, scalability, and performance optimisation.
• Implement robust monitoring, alerting, and observability across distributed systems.
• Lead incident response and root cause analysis, driving long-term improvements.
• Own infrastructure decisions end-to-end, including architecture, cost optimisation, and performance.
• Document systems, create runbooks, and establish best practices.
• Mentor engineers and promote DevOps best practices across the organisation.

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