Application and Platform Engineer

Hong Kong Exchanges; Greater London; On-site; GBP 65,000 - 85,000; Full time

Job summary

A leading global exchange group in London is seeking an experienced Application and Platform Engineer to provide Level 2 and Level 3 technical support for mission-critical applications. The candidate will maintain and support containerised environments, enhance system reliability, and collaborate closely with various teams. Ideal candidates should have a degree in Computer Science or equivalent experience, along with strong SQL skills and familiarity with CI/CD practices.

Benefits

Diverse working environment

Opportunities for continuous improvement

Support for a culture of learning

Qualifications

• 2+ years of equivalent professional experience in IT.
• Strong SQL and database knowledge (MySQL, Oracle, Liquibase).
• Experience supporting .NET, Java, and microservices-based applications.

Responsibilities

• Support application suite in production with a focus on SRE and platform engineering.
• Troubleshoot and resolve incidents across applications, infrastructure, and network layers.
• Contribute to service improvements through automation.

Skills

Problem-solving skills

Clear communication

Technical curiosity

Collaboration

Documentation skills

Passion for automation

Education

Degree in Computer Science or related discipline

Tools

CI/CD tools (e.g., Bamboo, BitBucket)

OpenShift

Kubernetes

Ansible Tower

Grafana

Prometheus

Splunk

Scripting languages (Python, Bash, PowerShell)

Job description

Application and Platform Engineer page is loaded## Application and Platform Engineerlocations: UK-Londontime type: Full timeposted on: Posted Todayjob requisition id: R003321Application and Platform Engineer**Shift Pattern:**Standard 40 Hour Week (United Kingdom)**Scheduled Weekly Hours:**40**Corporate Grade:**E - Associate**Reporting Line:**(UK Division) Information Technology**Location:**UK-London**Worker Type:**Permanent**Overall Purpose of Role:**Provide Level 2 and Level 3 technical support with a focus on reliability, resilience, and automation for the LME’s Middle Office, Back Office, and Market Data mission-critical applications. This role combines application support with modern **SRE principles** and **platform engineering practices**, helping ensure system stability, scalability, and continuous improvement for internal teams and external clients.This includes:* Support our application suite in production with a view of platform engineering activities, including maintaining containerised environments and Infrastructure as Code (IaC).* 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 for application rollouts within project frameworks.* Assist project delivery across Waterfall and Agile methodologies, with exposure to Hybrid approaches.* Troubleshoot and resolve incidents across applications, infrastructure, and network layers.* Contribute to service improvements through automation and process optimisation.* Participate in incident, change, and problem management processes.* Validate changes through QA and automated testing pipelines.* Apply RE practices such as proactive monitoring and performance tuning to improve system reliability.**Key Accountabilities:*** Maintain and support mission-critical applications across Trading, Data and Clearing business units.* Assist with regulatory, infrastructure, and security projects.* Monitor application performance using observability tools and implement tuning where needed.* Support test and production environments to ensure stability and readiness.* Contribute to automation initiatives and CI/CD pipeline improvements.* Maintain accurate documentation for supported systems and platforms.* Participate in disaster recovery exercises and operational resiliency testing.* Help identify and remediate security vulnerabilities across systems.**Technical Responsibilities*** Maintain and test disaster recovery procedures.* Respond promptly to production issues and communicate resolutions effectively.* Support 24/7/365 system availability, including flexible shifts and on-call rota.* Work with CI/CD pipelines (e.g., Bamboo, BitBucket) to support deployments.* Assist with Infrastructure as Code using Ansible Tower.* Support containerised environments on **OpenShift** and **Kubernetes**, ensuring scalability and resilience.* Implement and maintain observability stacks with **Grafana/Prometheus** and **Splunk** for metrics and log analysis.* Automate repetitive tasks using scripting languages (Python, Bash, PowerShell).**Working with others:*** Collaborate with internal production teams, project teams, and business stakeholders.* Work closely with Risk, Security, and GRC teams, as well as external vendors and auditors.* Strong problem-solving skills, innovative mindset, and technical curiosity.* Clear, communicator and team player with a focus on collaboration and knowledge sharing.* Organised and proactive with excellent documentation skills.* Ownership mindset: accountable for end-to-end delivery and lifecycle thinking**PERSON SPECIFICATION:****Qualifications*** Degree in Computer Science or a related discipline or 2+years of equivalent professional experience**Preferred Experience*** Strong SQL and database knowledge (MySQL, Oracle, Liquibase).* Hands-on experience with CI/CD, IaC, containerisation, and orchestration tools.* Familiarity with monitoring and observability platforms.* Exposure to DevSecOps practices and vulnerability scanning.* 2–4 years in financial markets or mission-critical environments.* Good understanding of networking, infrastructure, and cloud technologies.* Experience supporting .NET, Java, and microservices-based applications.**Desirable*** ITIL Foundation Certification v3/v4.* ServiceNow experience.* SRE and Agile/Lean methodologies.* Swift Payment systems knowledge.**Skills*** Strong problem-solving skills and technical curiosity.* Clear communicator and collaborative team player.* Organised and proactive with good documentation skills.* Passion for automation and continuous improvement.* Comfortable working in Agile environments and using shared tools (Jira, Confluence).* Ability to work under pressure and prioritise effectively.**Personal Qualities:*** Delivers high-quality results under pressure and tight deadlines.* Strong problem-solving skills with an innovative, curious mindset.* Clear communicator and collaborative team player, promoting knowledge sharing.* Organised, proactive, and detail-oriented with strong planning skills.* Ownership mindset with a passion for automation and continuous improvement.* Comfortable with Agile practices and CI/CD tools (Jira, Confluence).* Supports a culture of learning through blameless post-mortems and experimentation.*The LME is committed to creating a diverse environment and is proud to be an equal opportunity employer. In recruiting for our teams, we welcome the unique contributions that you can bring in terms of education, ethnicity, race, sex, gender identity and expression, nation of origin, age, languages spoken, colour, religion, disability, sexual orientation and beliefs. In doing so, we want every LME employee to feel our commitment to showing respect for all and encouraging open collaboration and communication.*Hong Kong Exchanges and Clearing Limited (HKEX) is a publicly-traded company (HKEX Stock Code:388) and one of the world’s leading global exchange groups, offering a range of equity, derivative, commodity, fixed income and other financial markets, products and services, including the London Metals Exchange.As a superconnector and gateway between East and West, HKEX facilitates the two-way flow of capital, ideas and dialogue between China and the rest of world, through its pioneering Connect schemes, increasingly diversified product ecosystem and its deep, liquid and international markets.HKEX is a purpose-led organisation which, across its business and through the work of HKEX Foundation, seeks to connect, promote and progress its markets and the communities it supports for the prosperity of all.