Senior Platform Engineer.

About the role

We’re working with a growing technology consultancy looking for an experienced Senior Platform Engineer to join its engineering practice and deliver complex cloud and platform transformation programmes for a range of clients.

This is a senior, hands-on position combining deep Platform Engineering expertise with technical leadership and client delivery. You’ll design, build and evolve secure, scalable cloud platforms while helping engineering teams adopt modern Platform Engineering, DevOps and DevSecOps practices.

You’ll also have the opportunity to influence technical standards, mentor engineers and contribute to the continued development of the wider engineering capability.

You’ll work across complex client environments, taking ownership of Platform Engineering engagements from technical discovery and architecture through to implementation, troubleshooting and ongoing improvement.

The role remains highly hands-on. You’ll work extensively across AWS, Kubernetes, Infrastructure as Code and CI/CD, building reusable platform capabilities that improve reliability, security and developer experience.

Alongside engineering delivery, you’ll provide technical leadership to other engineers, work directly with senior client stakeholders and help shape technical solutions for new and existing engagements.

What you will do

• Design, build and evolve secure, scalable and highly available AWS platforms
• Design and operate Kubernetes environments, particularly AWS EKS
• Deliver complex technical discovery, architecture, implementation and remediation work
• Build and maintain Infrastructure as Code using Terraform and associated automation tooling
• Design reusable, secure CI/CD capabilities and deployment pipelines
• Build self-service platform capabilities that improve developer experience and reduce delivery friction
• Implement security, resilience, observability, backup and service management practices
• Support development teams onboarding applications and services onto shared platforms
• Define and monitor meaningful platform KPIs, service levels and reliability measures
• Provide technical leadership and architectural guidance across complex platform changes
• Coach and support engineers while encouraging technical ownership
• Identify technical risks, dependencies and opportunities for improvement
• Work directly with client stakeholders to explain technical decisions and delivery considerations
• Contribute to technical solution shaping, proposals and new client opportunities
• Help establish and maintain engineering standards, reusable assets and best practices

What we are looking for

• Significant experience within DevOps, DevSecOps or Platform Engineering
• Extensive hands-on experience designing, building and operating production AWS environments
• Strong experience with AWS architecture, including IAM, networking, compute, storage, resilience and operational governance
• Strong production Kubernetes experience, ideally with AWS EKS
• Experience across Kubernetes networking, ingress, workload management, upgrades, security and reliability
• Advanced Infrastructure as Code experience using Terraform
• Strong experience with Git-based development workflows and modern CI/CD tooling
• Experience designing reusable and secure deployment pipelines
• A strong security-first approach across cloud infrastructure, Infrastructure as Code and CI/CD
• Experience building self-service platform capabilities or Internal Developer Platforms
• Strong knowledge of observability and Site Reliability Engineering principles, including logging, metrics, tracing, alerting and incident management
• Strong Linux/UNIX administration and troubleshooting skills
• Good understanding of secure cloud and hybrid networking
• Experience making architectural decisions and leading engineers through complex technical change
• Strong client-facing communication and stakeholder management skills
• Previous experience within consultancy or another client-facing technical delivery environment
• Ability to move comfortably between hands-on engineering, technical leadership and client conversations
• Desirable: Platform Engineering strategy, roadmaps, standards or governance
• Desirable: microservices, event-driven or distributed architectures
• Desirable: cloud security engineering, including policy as code, threat modelling and security monitoring
• Desirable: Python, Go, Shell, Helm or Ansible
• Desirable: enterprise observability tooling such as Datadog, Splunk or Sumo Logic
• Desirable: Internal Developer Platforms, service catalogues or developer portals
• Desirable: Backstage, Port or similar developer experience tooling
• Desirable: experience contributing to technical proposals, solution shaping or pre-sales activity
• Desirable: relevant AWS, Kubernetes, security or Platform Engineering certifications

The package

Salary: £90,000 to £100,000 depending on experience.

Location: London, hybrid. A combination of remote and client-site working, with regular travel to client sites across the UK and Europe.

Benefits: private medical insurance, enhanced pension, performance-related bonus, life insurance, EV scheme and 25 days’ annual leave plus bank holidays.

This is a strong opportunity for a senior engineer who wants to remain deeply technical while taking on broader responsibility for technical leadership and client delivery.

You’ll work across varied and technically challenging environments, have significant autonomy over the solutions you deliver and play an active role in shaping engineering standards and ways of working as the practice continues to grow.

The position would particularly suit someone comfortable operating as a trusted technical advisor: equally capable of getting hands-on with a difficult Kubernetes or AWS problem and discussing architecture, risk and delivery strategy with senior stakeholders.