Yudha

Rahadhian Kartikayudha Ningrat, ST.

IT Network & Infrastructure Specialist

IT Network & Infrastructure Specialist with 15 years of progressive experience managing, securing, and optimizing enterprise-grade IT infrastructure within fast-paced environments. Proven track record in aligning technology initiatives with organizational goals, driving up to 17% in cloud cost efficiency, and successfully spearheading ISO 27001 certification.

Adept at leading cross-functional teams to deliver high-quality technical support and high-availability infrastructure solutions (including large-scale deployments of 70+ branch networks and high-density 120+ AP environments) on time and within budget. A results-oriented leader recognized for streamlining IT processes, enhancing service delivery, and leveraging emerging technologies to drive operational growth and data security.

Technical Skills

Cloud & Infrastructure Optimization

Cloud Cost Management/FinOps, Server Provisioning & Deployment, Backup & Disaster Recovery (DR) Planning.

Cloud Cost Management/FinOps 90%
Server Provisioning & Deployment 95%
Backup & Disaster Recovery (DR) Planning 95%

Systems & Database Administration

Linux System Administration (Ubuntu/CentOS/RHEL), Windows Server Administration, Enterprise Mail Systems (Zimbra Mail Server), Database Backup & Maintenance Automation.

Linux System Administration 90%
Windows Server Administration 95%
Enterprise Mail Systems (Zimbra) 90%

Automation & Observability

Tools Monitoring & Observability (Grafana, Prometheus, New Relic, NetMon) 85%
Automation (Bash and PowerShell Scripting) 90%

Network & Security

Enterprise Network Architecture, Network Security & Encryption, VPN & Secure Dedicated Interconnects, Infrastructure Monitoring & High Availability (HA).

Enterprise Network Architecture 95%
Network Security & Encryption 90%
VPN & Secure Dedicated Interconnects 95%

Governance, Risk, and Compliance (GRC)

ISO/IEC 27001 Implementation & Internal Audit, Information Security Management Systems (ISMS), Regulatory Compliance (Government Link Data Management), IT Standard Operating Procedures (SOP) Development.

ISO/IEC 27001 & ISMS Implementation 90%
Regulatory Compliance & SOP Development 90%

Licenses & Certifications

  • ISO/IEC 27001:2022 Awareness Training Course
    Cert. No. 15180 | Issued by TÜV SÜD
  • ISO/IEC 27001:2022 Internal Audit Training Course
    Cert. No. 15615 | Issued by TÜV SÜD

Professional Experience

PT Harmoni Dinamik Indonesia

Senior Project Leader

July 2019 - Present

Jakarta, Indonesia

  • Reengineered network infrastructure by reviewing, developing, and implementing best-practice upgrades, boosting connection availability and reliability to over 98% (specifically for HQ-to-warehouse connectivity) and successfully meeting 95% of monthly operational targets.
  • Standardized IT department workflows by updating and authoring comprehensive Standard Operating Procedures (SOPs), significantly improving operational documentation, team alignment, and cross-functional efficiency.
  • Spearheaded the implementation team to successfully attain ISO 27001 certification, strengthening the organization's ISMS security posture, mitigating information breach risks, and measurably elevating customer trust.
  • Optimized hybrid cloud connectivity and multi-site server infrastructure, ensuring seamless application performance and unified management across both on-premises and cloud environments.
  • Optimized cloud infrastructure and managed server utilization to align with the organizational budget, driving an 11% daily cost reduction and achieving nearly 17% in monthly cloud savings through strategic architectural implementations.
  • Provisioned and maintained a hybrid environment of Windows and Linux servers; developed custom Bash and PowerShell scripts to automate robust database backup schedules, ensuring data integrity and disaster recovery readiness.

PT Indosurya Inti Finance

Senior Network Engineer

March 2011 - July 2019

Jakarta, Indonesia

  • Architected and deployed secure network connections linking the head office to 70+ branch offices, maintaining over 95% connection availability and consistently hitting 90% of monthly operational targets.
  • Administered and optimized the organization's enterprise-wide email services utilizing Zimbra Mail Server, ensuring high availability and seamless communication for all users.
  • Provisioned and maintained a hybrid environment of Windows and Linux servers; designed and automated robust database backup schedules to ensure data integrity and disaster recovery readiness.
  • Managed and secured dedicated data links to government regulatory bodies, ensuring strict compliance with official technical requirements and uninterrupted data exchange.

VELO Networks

Junior Network Engineer

May 2010 - February 2011

Jakarta, Indonesia

  • Served as the Dedicated On-Site Network Engineer at Le Méridien Jakarta, ensuring maximum uptime and high availability of Velo Networks' internet connection links across all corporate offices and guest rooms.
  • Deployed and maintained 120+ wireless access points across the entire hotel property, optimizing signal coverage and network performance for high-density user environments.
  • Collaborated closely with Le Méridien's internal IT department to rapidly diagnose and resolve complex network device failures and internet connectivity issues for both internal staff and hotel guests.

Education

Gunadarma University

Bachelor of Engineering in Information Technology

GPA 3.03 / 4.00

Graduated 2010

Contact Information

Portfolio Website

my-portfolio.rkningrat.id

Location

Jakarta, Indonesia

Operational Insight

15 years of industry experience managing core architectures, optimizing budgets, and standardizing compliance parameters across complex hybrid deployments.