關海林KWAN Hoi Lam

Senior Technical Officer
MaleSolutionLive in HongkongNationality
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Summary

DevOps and Infrastructure Engineer with expertise in enterprise cloud solutions across AWS, Azure, and multi-cloud environments, specializing in CI/CD automation, infrastructure-as-code, and Kubernetes for financial services. Focused on cloud security, FinOps-driven cost optimization, and modern practices such as AIOps and GitOps to build scalable, resilient, and secure infrastructure.

Work experience

  • Senior Technical Officer

    HKT
    2022.08-Current(4 years)
    • Led enterprise-grade GitLab CI/CD pipeline architecture and optimization initiatives across multi-cloud environments (AWS, Azure), enhancing automation coverage and deployment reliability for financial services infrastructure • Designed and implemented comprehensive VPC networking strategies with security group policies and network segmentation, enabling secure cross-team collaboration while maintaining strict infrastructure governance standards • Deployed and optimized AWS Systems Manager Patch Manager for enterprise-wide automated patching workflows, reducing manual intervention by 85% and improving infrastructure compliance across critical systems • Architected scalable multi-cloud AWS Lambda containerized solutions using PowerShell and Python, processing mission-critical financial data pipelines with 99.99% reliability for microservice integrations • Established infrastructure observability framework using CloudWatch and Azure Monitor, responding to incidents with sub-minute resolution time for critical services while mentoring junior team members on incident response procedures • Established and maintained infrastructure monitoring and alerting strategies to ensure 99.9%+ uptime and optimal application performance across production environments, directly contributing to business continuity objectives
  • Customer Services Officer

    Bank of China (Hong Kong)
    2019.10-2020.05(8 months)
    • Delivered exceptional customer service through complex financial transactions, enhancing brand reputation and customer retention • Analyzed customer financial needs and recommended tailored digital banking solutions to improve client portfolio performance • Promoted digital transformation initiatives, driving adoption of online banking platforms across retail customer base

Projects

  • 2025.11-2026.11(a year)
    Chow Tai Fook Jewelry Group • Architected and deployed a multi-cloud Landing Zone leveraging Terraform and AWS CloudFormation, establishing secure, scalable foundation for global infrastructure management across multiple AWS accounts • Developed and customized AWS Lambda container images using PowerShell and Python, implementing targeted application control for frontend (CloudFront CDN behaviors), backend (SQS/SNS integration), and microservice bridging • Designed enterprise CI/CD pipelines (GitLab, AWS CodePipeline) enabling automated build, test, and deployment cycles; reduced release time by 40% while improving feature delivery velocity • Implemented infrastructure security hardening including IAM policies, encrypted S3 buckets, VPC endpoints, and certificate management using AWS Certificate Manager • Managed AWS ECS Service Connect and Service Discovery for containerized workload orchestration and inter-service communication optimization Hong Kong International Airport (HKIA) • Configured and deployed Kubernetes clusters on Azure AKS with advanced networking and resource policies, ensuring optimal scaling for containerized applications • Implemented Kubernetes Gateway API for advanced traffic management and service routing, replacing legacy Ingress patterns for improved performance and security • Built and maintained production CI/CD pipelines using GitLab, Azure DevOps, and AWS CodePipeline, streamlining application deployment and reducing deployment failures • Deployed CloudWatch and Azure Monitor for comprehensive cluster observability, enabling proactive identification and resolution of performance bottlenecks In-House Multi-Cloud FinOps Dashboard • Designed and implemented internal multi-cloud finance monitoring solution using FOCUS (FinOps Open Cost & Usage Specification) standard to normalize billing data across AWS, Azure, and Alibaba Cloud • Built unified cost visibility dashboard enabling finance, engineering, and management stakeholders to track cross-cloud spend by account, region, service, and cost category with real-time insights • Integrated cost and usage data from AWS Cost and Usage Reports (CUR), Azure billing exports, and Alibaba Cloud cost statements into FOCUS-based data model, simplifying cost comparison and allocation across three major cloud providers • Collaborated with finance and application owners to define tagging standards, cost allocation rules, and chargeback models, improving billing accuracy while supporting audit and regulatory reporting requirements in financial services sector • Identified idle and underutilized resources through dashboard analytics, implementing rightsizing and resource scheduling policies that delivered measurable cost optimization across multi-cloud infrastructure

Educational experience

  • Hong Kong Baptist University

    MSc in Finance (FinTech and Financial Analytics)
    2021.09-2022.11(a year)
  • The Open University of Hong Kong

    Bachelor of Sports and Recreation Management with Honours
    2017.09-2019.06(2 years)

Languages

Chinese (Mandarin)
Fluent
Chinese (Cantonese)
Native
English
Fluent
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