Ryan Tan

Experience

• 

  Texas Instruments

  Jan 2015 - Aug 2015

  Software Engineer Intern
• 

  Imperium Solutions Pte Ltd

  Dec 2016 - Feb 2019

  Solutions Engineer (Splunk)

  - Responsible for the installation and implementation of Splunk infrastructure, from single instance to multi-site distributed cluster, using HA techniques and best practices on multiple OS environments- Implementation of Splunk Enterprise Security (SIEM) for security event analysis & event management on major banks, telco, media and financial institutions in Singapore- Custom use cases creation and reports/dashboards development for the SIEM and Core Splunk- Close collaboration with Account Managers in closing sales through technical pre sales- Requirements gathering, feasibility studies and proof of concepts for clients- Writing proposals for project tenders, architecting Splunk deployments and perform scoping works- Linux configuration and administration for infra deployment, storage integration and partitioning- Vulnerability assessment using ad-hoc or scheduled scans on servers using tools like Tenable Nessus- Writing custom scripts for remote polling of SNMP interfaces, automating workflows and perform scheduled tasks- Disaster recovery for multiple Splunk instances using active-passive failover design- Data integrity testing for backed up configurations and files- Enforcing strong cipher suites on solution to solution communications for attack mitigation- Application of threat intelligence feeds for cyber threat detection and performing forensic investigations- Normalization of logs using Common Information Model (CIM) and data model mapping- Conduct Core Splunk and Enterprise Security training courses for customers, as well as in-house junior engineers mentoring through job shadowing Show less

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  PROFICIO

  Feb 2019 - now

  • Manager - SIEM Engineering

    Oct 2024 - now

  • Principal Engineer

    Jun 2022 - Jan 2025

  • Managed SIEM Lead

    Dec 2020 - Jun 2022

  • Security Data Engineer III

    Jan 2020 - Dec 2020

  • Security Data Engineer II

    Feb 2019 - Dec 2019