Cloud Engineer

Quantum is building a high-performance trading platform operating in a security-critical environment. We are seeking a hands-on Cloud Engineer to design, build, secure, and operate our Microsoft Azure cloud platform.

This is a 100% cloud engineering role.

Corporate IT and end-user support are fully outsourced to a specialist MSP.

The Cloud Engineer will own the cloud platform, security posture, and trading environment, while overseeing and coordinating with an external IT provider to ensure correct execution around identity, tenant governance, and transition activities.

Key Responsibilities

Cloud Infrastructure & Platform Engineering

·Design, build, and operate Azure environments supporting a live trading platform, including:

·AKS / Container Apps

·Postgres, Redis. Event Hubs, Kafka, Storage accounts

·Define and maintain secure cloud architecture, including networking, segmentation, private endpoints, and isolation.

·Build and manage infrastructure using Terraform and Azure CLI, ensuring consistency, traceability, and controlled change.

·Own cloud environments across development, UAT, and production.

·Implement and maintain CI/CD pipelines with robust deployment, rollback, and smoke-testing strategies.

·Collaborate with backend, data, and product teams to ensure scalable, secure, and performant platform design.

Security & Risk Management (Core Focus)

Security is a primary responsibility of this role.

·Own the cloud security posture across Azure:

·Identity and access models

·RBAC and least-privilege enforcement

·Secrets management and key rotation

· Encryption at rest and in transit

·Implement strong observability and auditability, including logging, monitoring, alerting, and security events.

·Design systems assuming attack, failure, and misuse as default scenarios.

·Lead cloud-level incident response and post-incident reviews.

·Ensure the platform meets expectations for a trading / regulated environment.

Reliability, DR & Resilience

·Design, implement, and test disaster recovery (DR) and business continuity strategies.

·Monitor platform health, performance, and availability.

·Identify and remediate single points of failure.

·Maintain clear, tested recovery documentation.

Platform Ownership & Documentation

·Act as the technical owner of the cloud platform.

·Proactively identify risks, gaps, and improvement areas.

·Maintain clear, accurate documentation for architecture, infrastructure, security controls, and operational procedures.

Interface with Outsourced IT Provider & CSP Transition

·Act as the technical point of contact for an external MSP responsible for corporate IT.

·Oversee and validate MSP execution where it intersects with:

·Identity and access

·Tenant configuration

·Security controls

·Support and govern the transition from the current CSP / IT provider to a new MSP, ensuring:

·Quantum retains full tenant ownership

·Least-privilege access is enforced

·No compromise to cloud or platform security

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Essential

·Proven hands-on experience as a Cloud Engineer working with Microsoft Azure.

·Strong experience with Infrastructure as Code (Terraform).

·Deep understanding of Azure networking, compute, storage, and identity.

·Experience operating production cloud environments with high availability and security requirements.

·Strong security fundamentals, including access control, encryption, logging, and auditing.

·Comfortable working autonomously in a small, fast-moving team with high ownership.

Desirable

·Experience in fintech, trading, or other security-sensitive environments.

·Experience with containerised and event-driven systems.

·Experience inheriting, hardening, or cleaning up existing cloud environments.

·Familiarity with incident response and DR testing in cloud platforms.

Working Style

·Proactive and self-directed; sees gaps and addresses them without prompting.

·Detail-oriented and disciplined.

·Strong communicator who values documentation and clarity.

·Comfortable operating with limited direction and high trust.

Team Culture & Ways of Working

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