Principal Platform Engineer

MMT

  • London
  • Permanent
  • Full-time
  • 15 days ago
  • Apply easily
Location: UKContract Type: PermanentAbout the OpportunityWe're looking for a Principal Platform Engineer who will lead enterprise engineering modernisation initiatives for our clients. This role is perfect for a technical leader who thrives on orchestrating complex transformations whilst aligning diverse specialist teams towards common engineering excellence goals.You'll be a technical architect of change, designing comprehensive modernisation strategies that span infrastructure, security, quality assurance, and governance.Think of yourself as the conductor of a technical orchestra - you don't need to play every instrument, but you must understand how they harmonise to create transformational outcomes.What You'll Be DoingTechnical Leadership & Innovation
  • Help design and drive enterprise-wide engineering modernisation strategies encompassing automated workflows, CI/CD frameworks, and development lifecycle improvements with MMT and client engineering teams.
  • Lead aspects of Service Asset and Configuration Management (SACM) initiatives that bring order to complex enterprise estates.
  • Lead the transformation of secrets management practices across heterogeneous environments, ensuring solutions scale effectively whilst strengthening organisational security posture
  • Help define engineering standards, frameworks, and guardrails that accelerate delivery whilst ensuring compliance.
  • Create technical roadmaps that balance quick wins with long-term architectural sustainability.
Cross-Team Leadership & Alignment
  • Orchestrate collaboration between infrastructure, security, quality, and governance teams to deliver cohesive solutions, that exist in silo’s around client businesses.
  • Translate between specialist domains, ensuring each team understands their role in the bigger picture.
  • Identify and resolve conflicts between competing technical priorities across different teams.
  • Foster a unified engineering culture whilst respecting domain expertise.
  • Lead architectural review boards and technical decision forums.
Enterprise Level Transformation Delivery
  • Break down complex modernisation programmes into achievable phases with clear success metrics
Integrate automated testing strategies that span unit, integration, performance, and security testing * Implement CI/CD framework architecture that works across multiple technology estates, with particular focus on GitHub Actions as the strategic direction.
  • Design frameworks with reusable patterns and libraries, ensuring each framework/toolkit makes the next one faster and more predictable.
  • Leverage Data Lake platforms for comprehensive platform observability and compliance auditing.
  • Ensure solutions consider enterprise constraints like regulatory compliance and legacy system integration.
Client Strategy & Engagement
  • Work directly with C-suite executives and key client stakeholders to understand their business goals and technical challenges
  • Transform complex technical concepts into clear business narratives that drive decision-making.
  • Guide clients through their journey with strategic recommendations and practical next steps.
  • Present technical strategies that clearly articulate business value and risk reduction.
  • Build trust through early wins whilst maintaining focus on strategic objectives.
Business Growth & Thought Leadership
  • Drive the technical aspects of high-value proposal responses and RFP.
  • Present technical solutions and demonstrations that showcase our capabilities.
to thought leadership content (our CTO office) and represent the company at industry events. * Help shape our service offerings based on market trends and client feedback.What We're Looking ForCore Experience:
  • Extensive hands-on engineering and architecture experience - if you're not excited about writing Infrastructure as Code and testing prototypes, this role isn't for you.
  • Proven ability to lead technical teams and manage complex, multi-stakeholder projects.
  • Deep understanding of enterprise constraints and how to navigate them.
  • History of defining and implementing engineering standards at scale
Technical Expertise
  • Strong background in infrastructure automation, CI/CD, and modern DevOps practices - think turning manual chaos into elegant, self-healing systems that deploy flawlessly
  • Solid understanding of AWS and Azure architectures, particularly around identity, security, and secrets management solutions
  • In-depth knowledge of Git workflows, branching strategies, and their implementation at enterprise scale
  • Knowledge of cloud security frameworks and compliance requirements
  • Understanding of cost optimization strategies and cloud financial management
  • Familiarity with monitoring, observability, and incident response best practices
  • High-level understanding of Service Asset and Configuration Management principles and their practical implementation in enterprise environments
  • Understanding of Data Lake solutions (Snowflake, Databricks) for platform telemetry and auditing, plus ETL concepts for operational data pipelines
  • Comprehensive knowledge of quality assurance practices and implementing automated quality gates throughout the development lifecycle
  • Ability to read and understand Python and other common languages to review architectural decisions and integration points
Communication & Business Skills
  • Excellent presentation skills with experience speaking to technical and executive audiences
  • Strong written communication abilities, especially for proposals and technical documentation
  • Natural curiosity about business challenges and how technology can solve them
  • Collaborative mindset with the ability to work effectively across different teams and disciplines
  • Experience managing stakeholder expectations and navigating complex organizational dynamics
  • Strong grasp of Agile/Scrum practices and how they integrate with platform engineering initiatives
Languages:
  • Fluency in English (spoken and written) is essential

MMT