Senior Platform Engineer (Linux / IaC / Containers) - High-Impact Hands-On Role

We are looking for an exceptional Senior Platform Engineer to join a highly technical, engineering-driven team building and running the core infrastructure that powers a complex, mission-critical trading environment. This is a rare opportunity to own infrastructure end-to-end, work with a modern cloud-native stack, and shape a platform that is being engineered with quality, automation, and reliability at its core.

If you come from a small, high-trust environment where you've worn multiple hats, built systems from first principles, and understand how platforms fit together at a deep systems level-this will be one of the most rewarding roles you can take on.

You will be a key member of a senior-only platform team responsible for designing, automating, and operating the full infrastructure stack. You will work across Linux systems, container orchestration, infrastructure-as-code, secrets management, cluster networking/storage interfaces, and cloud integration.

This is not a siloed role. You will work in an environment where sharp engineers truly own their systems-designing, provisioning, securing, deploying, maintaining, and scaling them.

What You'll Work On

Infrastructure as Code & Automation

• Designing and building infrastructure using Terraform, Helm, Ansible, and Puppet
• Implementing fully automated, GitOps-style provisioning and lifecycle management
• Codifying repeatable patterns for platform reliability, security, and scaling

Containerisation & Orchestration

• Operating and improving large-scale containerised workloads
• Working with Nomad (preferred) or Kubernetes (fully transferable)
• Understanding and implementing CNI and CSI patterns for networking and storage

Core Systems Engineering

• Deep Linux engineering (performance, networking, debugging, observability)
• Building secure, robust, self-service platform capabilities for engineering teams
• Owning infrastructure from bootstrap deploy operate harden

Cloud & Platform Services

• Leveraging Azure cloud primitives
• Implementing secrets, identity, and policy through HashiCorp Vault

End-to-End Ownership

• Working autonomously to solve difficult problems across the full platform layer
• Designing, standing up, and running services in a Linux-native environment
• Working closely with senior technologists across the business

True Seniority. A platform engineer with breadth as well as depth-not someone who has spent their career in a silo.

Linux-first mindset. You live and breathe Linux systems and understand how distributed workloads behave underneath.

Modern container & IaC expertise. Strong experience with Nomad/K8s, Terraform, Helm, Ansible/Puppet, Vault, and cloud-native tooling.

Breadth of exposure from a smaller environment. Ideally someone from:

• A small, high-impact engineering team
• A startup with real ownership
• A consultancy/vendor environment with wide hands-on exposure

You understand how all the pieces fit together, not just one narrow slice.

Stability and craft. A track record of delivering quality over time-not a job hopper.

What We Offer

• A senior, engineering-led culture with extremely high technical standards
• The autonomy to design and operate infrastructure the right way
• A role where your impact is visible, meaningful, and valued
• A modern platform built on cloud-native principles, not legacy firefighting
• Competitive compensation for top-tier talent
• An environment that rewards curiosity, ownership, and technical excellence

Who This Role Is Perfect For

An engineer who:

• Wants to own infrastructure rather than sit in a large silo
• Enjoys solving deep technical problems across the full stack
• Likes working alongside other high-calibre senior engineers
• Thrives in an environment with accountability, modern tooling, and genuine complexity
• Wants to see the impact of their work immediately