Senior Application and Platform Engineer

Location: Greater London

Senior Application and Platform Engineer page is loaded## Senior Application and Platform Engineer locations:
UK-London time type:
Full time posted on:
Posted Todayjob requisition :
R003320

Senior Application and Platform Engineer
** Shift Pattern:
** Standard 40 Hour Week (United Kingdom)
** Scheduled Weekly

Hours:

** 40
* * Corporate Grade:
** D - Assistant Vice President
** Reporting Line:**(UK Division) Information Technology
*
* Location:

** UK-London
** Worker Type:
** Permanent
* * Overall, Purpose of Role
** Deliver Level 2 and Level 3 technical support with a strong focus on
** reliability, resilience, and automation
** for the LME’s Middle Office, Back Office, and Market Data mission-critical applications. This role blends traditional application support with
** SRE principles
** and
** platform engineering practices
** to ensure stability, scalability, and continuous improvement across systems serving internal teams and external clients.
** Core Responsibilities**
* ** Reliability Engineering**:
Embed SRE best practices into operational workflows, including error budgets, SLIs/SLOs, and proactive monitoring to improve system uptime and performance.
* Design, Build, migrate, support, optimise and manage our physical, virtual, containerised Openshift and Kubernetes environments for scalability, resilience, and operational efficiency, with a focus on a ‘Five nines’ operational availability.
* Deliver technical support within a project-based framework to ensure successful application rollouts.
* Support project delivery across Waterfall and Agile frameworks, with an emphasis on Hybrid approaches to ensure both flexibility and efficiency.
* Prioritise and resolve incidents across the full application suite, ensuring rapid recovery and root cause analysis.
* Identify and implement service improvements with measurable outcomes, focusing on automation and reducing TOIL.
* Manage day-to-day production incidents and validate changes through QA and automated testing pipelines.
* Troubleshoot issues across network, database, infrastructure, and application layers.
* Actively contribute to incident, change, and problem management processes.
*
* Key Accountabilities:

*** Provide support and maintenance for mission-critical applications across Pre- and Post-Trade business units.
* Support delivery of regulatory, market growth, infrastructure, and security projects.
* Monitor and optimise application performance using observability tools and proactive tuning.
* Maintain and support both test and production environments for stability and readiness.
* Champion automation, CI/CD, and self-healing systems to reduce manual intervention.
* Oversee end-to-end release management, ensuring smooth deployments with minimal risk.
* Drive continuous improvement by evaluating and enhancing support processes.
* Maintain up-to-date documentation for all supported systems and platforms.
* Lead operational resiliency exercises, including disaster recovery and chaos engineering tests.
* Identify, manage, and remediate security vulnerabilities across systems and applications.
** Technical Responsibilities
*** Maintain and regularly test disaster recovery procedures.
* Recommend and implement standards to enhance environment efficiency and resilience.
* Validate system builds against operational and reliability requirements.
* Respond promptly to production issues, ensuring resolution and stakeholder communication.
* Support 24/7/365 system availability for production systems, this will incorporate working flexible shift patterns (07:00–16:00 and 10:00–19:00), including participation in on-call and weekend rota to cover out of hours, alongside the HK team.
* Participate in on-call and weekend rota for out-of-hours coverage.
* CI/CD Pipeline Management:
Design, implement, and maintain pipelines using Bamboo alongside Bit Bucket
* Infrastructure as Code (IaC):
Champion IaC and help to build and manage our application and environment releases via Ansible tower.
* Platform Management and Availability:
Build, migrate, support, optimise and manage our physical, virtual, containerised Openshift and Kubernetes environments for scalability, resilience, and operational efficiency,…