Platform Security Lead

We are looking for a Security Platform Engineering Lead to define, build and operate a portfolio of reusable security capabilities that can be consumed by engineering squads as part of our product delivery. This role will combine technical leadership with hands on engineering, ensuring that security controls are delivered as code, embedded into infrastructure and CI/CD pipelines, and aligned to our AWS first, Terraform led platform model.

We are looking to expand and mature further our Platform Engineering capabilities by introducing a Security Platform Engineering team, with a goal to make secure by default the best and easiest path for squads building customer facing services. This team will engineer and operate reusable security capabilities as internal products, embedding security controls directly into infrastructure, CI/CD pipelines and service templates. Working closely with Cloud Platform Engineering, Security Operations and other engineering squads, the function will focus on reducing risk through automation, consistency and developer experience.

The successful candidate will be responsible for shaping the roadmap, forming the team to deliver it, driving adoption across build and run squads, and ensuring that security becomes a scalable, automated and measurable capability rather than a manual or reactive process.

ROLE AND RESPONSIBILITIES

Work with the Head of Cloud and security stakeholders to define the strategic direction and technical vision of security platform engineering at CMC

Build and lead a small team responsible for delivering security capabilities as reusable platform “products”

Own the roadmap and technical delivery of these capabilities across cloud infrastructure, CI/CD, IAM, application integration patterns and more

Engage and collaborate with internal customers and understand up and coming use cases for the security platform

Deliver hands on contributions to the platform; set technical standards and approach

Operate and support the security platform services with clear reliability expectations and continuous improvement

Drive measurable adoption of security platform services across engineering teams and report on coverage, risk reduction and maturity

Stay up-to-date on industry trends and emerging technologies and incorporate them into the platform roadmap as necessary

Mentor and coach the team through pairing, feedback and your behaviour

KEY SKILLS AND EXPERIENCE

Required

Demonstrable experience in the following

Securing cloud native workloads, ideally within AWS and serverless architectures

Managing services required to deliver secure applications such as firewalls, package management and secrets management

Deep understanding of IAM, least privilege access design and secure service to service communication patterns

Integrating security controls into CI/CD pipelines, preferably using GitHub Actions

Enforcing security standards on Infrastructure as Code (e.g. via Policy as Code)

Ability to translate regulatory or security policy requirements into practical, automated engineering controls

Leading team technical delivery in a cross functional environment with multiple stakeholder groups

Building and operating security capabilities at scale to support product development

Preferred

Experience writing Terraform to configure and manage security tooling and services

Experience with GitHub Advanced Security features such as code scanning, dependency review and secret scanning

Experience in developing hardened golden image pipelines for containers and virtual machines

Experience integrating Wiz or similar CNAPP tools into developer workflows

Experience delivering identity or access management capabilities as shared internal services

Experience operating in a Platform Engineering model supporting build and run squads in a regulated environment

CMC Markets is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of gender, sexual orientation, marital or civil partner status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age.