Open to work, available within a week, interviews anytime

Hi, I'm KISSKISSCAT

3 years of systems operations and project implementation experience, covering both platform operations and direct client-facing delivery: I can own system deployment, go-live support and customer training on my own, and follow every issue through to resolution. I keep a strong security and risk mindset, plan rollback and fallback paths before every change, value data backup and system stability, and proactively run inspections to catch problems early.

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  • 0Years in ops & implementation
  • 0Projects delivered end-to-end
  • 0Tools & technologies in daily use
  • 0Issues tracked to closure
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About

About Me

Three years of experience in operations, cloud computing, network security and more.

Hi! I'm KISSKISSCAT, a Security | Cloud | Operations engineer.

  • Own the cloud deployment and maintenance of a HIS platform: ACK containerized deployment, Nginx load balancing, Redis caching and managed cloud RDS database operations
  • Built a lightweight CI/CD pipeline (Jenkins + Gitee + Docker) and an ELK logging platform, keeping 7 days of hot data with archives auto-purged after 30 days

Day-to-day Focus

Stability assuranceBackup & disaster recovery Operations automationSecurity baselines Classified Protection 2.0 (MLPS)Observability

  • Technical & Client-Facing

    Just as comfortable with platform operations as with working directly with client stakeholders: I can own the technical interface, deliver system deployment, go-live support and customer training.

  • Risk Awareness & Fallbacks

    I think about risks and fallback plans before starting a project, put data backup and system stability first, and inspect systems proactively to catch hidden problems early.

  • Pragmatic & Tool-Driven

    Solutions stay pragmatic and fit the environment at hand; I simplify repetitive work with pipelines and scripts and keep operations documentation, which raises the whole team's efficiency.

  • Broad Hands-On Coverage

    Real experience with data center hardware, endpoint support, container clusters and application security, plus monitoring and logs to troubleshoot fast and back the team on any issue.

Skills

Technical Skills

My main direction is Linux system operations with containerized platforms and observability, delivering everything from environment setup and CI/CD to monitoring, alerting and security hardening on my own.

Proficiency

  • Linux / Windows operations & troubleshooting90%
  • Docker / Kubernetes containers & orchestration88%
  • Nginx / HAProxy reverse proxy & load balancing85%
  • Prometheus + Grafana / ELK monitoring & logging85%
  • Jenkins CI/CD & Git version control85%
  • MySQL / Redis operations, backup & recovery82%
  • Ansible / Shell / Python automation80%
  • Network Security / Penetration Testing / Red Team vs. Blue Team / Incident Response / Vulnerability Discovery & Analysis90%

Systems & Automation

Linux (CentOS / Ubuntu)Windows Server Troubleshooting & performance tuning TCP/IP networkingShell scripting Basic Python scriptingAnsible Playbooks System provisioning / baseline checks Bastion host access controlSecurity hardening NFS file sharing Data center hardware & endpoint support

Middleware, Data, Containers

NginxHAProxy LVS / KeepalivedGzip compression & caching MySQL master-slave / semi-sync replication Full + binlog incremental backups Redis Sentinel / AOF / RDBAlibaba Cloud RDS OSS / S3 object storage CDN static asset accelerationDocker / Dockerfile Kubernetes / Alibaba Cloud ACK Deployment / Service / IngressConfigMap

Pipelines, Monitoring, Security

Jenkins CI/CDGit / GitLab / Gitee Gitea deployment & operations Prometheus + GrafanaTiered alerting policies ELK (ES / Logstash / Kibana) Index lifecycle policiesWgcloud monitoring SafeLine WAFOWASP rule sets AWVS / Xray / NmapClassified Protection 2.0 (MLPS) Alibaba Cloud VPC / NAT / Security Groups

Experience

Work Experience

Three years on client sites: from system provisioning and bulk configuration to monitoring, logging, container clusters and releases, I owned day-to-day operations and delivery assurance at the customer's premises.

  1. Operations Engineer

    A technology company, software development / outsourcing / system integration, assigned on-site

    2023.09 - 2026.08

    The company focuses on software development, software outsourcing and system integration services, and delivers projects by assigning engineers on-site at client premises for operations and security assurance work.

    • Owned day-to-day operations of the company's hybrid cloud environment, including system provisioning, resource allocation, bastion host access control and security hardening.
    • Wrote Ansible Playbooks to manage bulk configuration of non-critical business servers, standardizing server deployment, patch updates and baseline checks.
    • Maintained the Prometheus monitoring stack, added metrics requested by the team and configured tiered alerting policies.
    • Ran scheduled inspections of the ELK logging platform and checked disk usage on every node; maintained the Nginx log shipping service per node so logs landed reliably, and resolved collection failures promptly.
    • Joined project releases and built business service images with Dockerfiles.
    • Operated Kubernetes clusters, covering daily inspections, troubleshooting and operations reporting.
    • Performed daily system health checks following the company's standard inspection process and produced standardized reports to keep operations status in sync; documented common procedures as runbooks so new colleagues could get up to speed quickly.
    LinuxAnsiblePrometheus ELKKubernetesDocker NginxBastion Host

Projects

Project Experience

Operations and implementation snapshots from two client sites in healthcare and education. The details are best talked through in person.

  • HIS Operations, Hospital Information Management System

    Cloud deployment and long-term maintenance of a private hospital's HIS platform, which carries appointment booking, electronic medical records, billing and insurance interfaces as core business. I handled Alibaba Cloud ACK containerized deployment, Nginx load balancing, Redis caching and managed cloud RDS database operations, plus version upgrades and on-site assurance during business peaks.

    Alibaba Cloud ACKKubernetes NginxMySQL (RDS)Redis PrometheusGrafanaELK OSS + CDN

  • Lexue Education Platform Deployment & Maintenance

    Deployment and long-term maintenance of a regional K-12 online education platform supporting live lessons, homework management and exam assessment. I delivered MySQL master-slave with Redis Sentinel high availability, a lightweight Jenkins + Gitee CI/CD pipeline, Nginx load balancing, ELK logging and SafeLine WAF protection.

    MySQL Master/Slave & Semi-syncRedis Sentinel JenkinsGiteeDocker NginxWgcloudELK OSSSafeLine WAF Classified Protection 2.0

Want the delivery details of a specific project? Let's talk

Contact

Shall We Talk?

I'm currently between jobs and available within a week, and I'm open to on-site assignments and travel. My resume is ready, so one call or one email is all it takes.

GitHub Profile github.com/KISSKISSCAT