01
IT/OT Network Infrastructure
Designing, assessing, troubleshooting, documenting, and improving enterprise and industrial network infrastructure.
IT / OT INFRASTRUCTURE · NETWORK · CYBERSECURITY · PROJECT DELIVERY
Damas Widyatmoko /
IT/OT Network
& Security
Engineer.
Infrastructure Project Manager
Engineering secure, reliable, and maintainable infrastructure for industrial environments, from technical assessment and architecture through project delivery and operational handover.
Cilegon, Indonesia14+ years in infrastructure
INFRASTRUCTURE BY DESIGN+
HANDS-ON ENGINEERING + INFRASTRUCTURE PROJECT DELIVERYSCROLL TO EXPLORE
+14+ Years Experience+IT/OT Infrastructure+OT Cybersecurity+Infrastructure Project Management+Virtualization & Backup+Network Architecture
01 / ABOUT ME
Engineering infrastructure from design to operation.
I have more than 14 years of experience in networking and IT infrastructure, with a career spanning network implementation, enterprise operations, infrastructure architecture, cloud and DevOps, manufacturing OT, and power-generation IT/OT environments.
Today, I work at the intersection of Information Technology and Operational Technology, supporting infrastructure that must remain secure, reliable, recoverable, and practical for live industrial operations.
My experience covers network infrastructure, cybersecurity, IT/OT segmentation, virtualization, server and storage platforms, backup and disaster recovery, industrial applications, infrastructure modernization, technical assessment, and project delivery.
A significant part of my experience—especially at PT NS BlueScope Indonesia—has involved managing infrastructure projects from requirements gathering and technical planning through procurement support, budget and schedule management, vendor coordination, risk assessment, implementation, commissioning, documentation, and operational handover.
I enjoy projects where engineering decisions have to balance cybersecurity, reliability, operational impact, lifecycle, cost, maintainability, and delivery risk.
02 / CORE EXPERTISE
Technical depth. End-to-end delivery.
Infrastructure engineering and project management, grounded in operational requirements.
02
OT Cybersecurity & Segmentation
Improving security while respecting availability and operational constraints.
03
Server, Storage & Virtualization
Supporting and modernizing infrastructure platforms hosting enterprise and industrial applications.
04
Backup, Recovery & Resilience
Designing backup environments around actual recoverability rather than backup-job success alone.
05
Infrastructure Architecture
Translating business and operational requirements into practical technical solutions.
06
Infrastructure Project Management
Managing technical infrastructure projects from requirements through delivery and handover.
07
Cloud & DevOps
Previous hands-on experience building and operating application infrastructure in cloud and container environments.
03 / SELECTED MAJOR CASE STUDIES
Infrastructure in practice.
Selected IT/OT assessments, industrial project delivery, and enterprise network implementations.
PROJECT / 01FEATURED
PT Indo Raya Tenaga
Major Case Study
CEMS Server & Infrastructure Modernization
Assessment, target architecture, and modernization planning for CEMS/HAWA infrastructure, covering virtualization, backup, network separation, and regulatory readiness.
IT/OT & Cybersecurity · Virtualization & Backup · Architecture & Governance · Project Management
PROJECT / 02
PT Indo Raya Tenaga
Major Case Study
IT/OT Network Segmentation & Firewall Hardening Assessment
Assessed IT/OT connectivity and communication dependencies to prepare a staged firewall-hardening approach that accounts for operational risk.
IT/OT & Cybersecurity · Network Infrastructure
PROJECT / 03
PT Indo Raya Tenaga
Major Case Study
Maximo ERP Infrastructure Assessment
Completed an infrastructure assessment and documentation baseline for Maximo ERP, supporting lifecycle, security, and network-segmentation improvement planning.
Virtualization & Backup · Architecture & Governance · Network Infrastructure
PROJECT / 12
PT NS BlueScope Indonesia
Major Case StudyPROJECT DELIVERY
OT Auto Asset Inventory
Implemented automated OT asset inventory using Nozomi, bringing discovery, classification, and monitoring into a centralized asset-visibility platform.
IT/OT & Cybersecurity · Project Management
PROJECT / 13
PT NS BlueScope Indonesia
Major Case StudyPROJECT DELIVERY
OT Network Segmentation
Redesigned and segmented OT networking with firewall infrastructure, VLANs, and access controls, including migration, validation, and operational handover.
IT/OT & Cybersecurity · Network Infrastructure · Project Management
PROJECT / 14
PT NS BlueScope Indonesia
Major Case StudyPROJECT DELIVERY
OT Physical-to-Virtual (P2V) Project
Built a VMware virtualization platform and migrated physical OT systems, with commissioning, documentation, and post-implementation operation.
IT/OT & Cybersecurity · Virtualization & Backup · Project Management
PROJECT / 21
PT Nusantara Compnet Integrator
Major Case Study
Network Infrastructure for New KPK Building
Designed and deployed building and data-center networking for the new KPK building, including wireless, encrypted branch connectivity, and internet load balancing.
Network Infrastructure · Wireless
PROJECT / 22
PT Nusantara Compnet Integrator
Major Case Study
Network & Wireless Infrastructure at BP Petrochemicals Indonesia – Batch 2
Designed and installed factory network and wireless infrastructure, integrating the Indonesian environment into the BP global network.
Network Infrastructure · Wireless
04 / INFRASTRUCTURE PROJECT MANAGEMENT
From requirements to operational handover.
My project-management experience is grounded in engineering delivery. I have managed IT/OT infrastructure projects where technical decisions, operational constraints, budget, schedule, vendor capability, cybersecurity, and business requirements all need to be considered together.
How I deliver infrastructure projects
- 01
Understand
Understand the business, operational environment, existing architecture, dependencies, stakeholders, and constraints.
- 02
Assess
Identify technical gaps, risks, lifecycle concerns, security weaknesses, and project dependencies.
- 03
Define Scope
Translate requirements into a clear technical scope, design basis, specification, BoQ, deliverables, responsibilities, and acceptance criteria.
- 04
Plan
Establish implementation approach, budget, timeline, risks, vendor requirements, downtime constraints, and stakeholder responsibilities.
- 05
Design
Develop a practical architecture considering availability, security, recovery, maintainability, lifecycle, cost, and operational impact.
- 06
Deliver
Coordinate implementation, vendors, technical teams, site activities, testing, and commissioning.
- 07
Validate
Confirm technical functionality, segregation, backup/recovery, performance, and project acceptance.
- 08
Handover
Complete documentation, training, credentials/access closure, operational handover, and support transition.
Engineering-led project management.
At PT NS BlueScope Indonesia, my OT engineering role included country-level infrastructure project management—from requirements, budget, schedule, forecast, and risk through implementation, commissioning, and handover.
Explore my experience- Requirements gathering
- Use-case development
- Scope definition
- Technical architecture coordination
- Budget planning and control
- Schedule development and tracking
- Forecasting
- Risk assessment and mitigation
- Vendor technical evaluation
- Procurement support
- Stakeholder coordination
- Site implementation coordination
- Migration / cutover planning
- Testing and commissioning
- Acceptance criteria
- Documentation
- Training
- Operational handover
PROJECT TYPES MANAGED
05 / CAREER EVOLUTION
A wider perspective. Built over time.
14+ years connecting network engineering, infrastructure architecture, cloud operations, and industrial project delivery.
- 2012 – 201701
Network Engineering
Wired and wireless implementation, Cisco infrastructure, site delivery, troubleshooting, documentation, migration, and cutover activities.
- 2017 – 202102
Enterprise IT Operations & Architecture
Data center networking, security, server and wireless infrastructure, architecture, technology evaluation, Proof of Concept, procurement, IT policy, and technical training.
- 2021 – 202203
Cloud & DevOps
Google Cloud Platform, Kubernetes, Cloudflare WAF, Jenkins CI/CD, Datadog, and infrastructure automation.
- 2022 – Present04
Industrial OT, Cybersecurity & Project Delivery
OT networking, IT/OT segmentation, cybersecurity, virtualization, recovery, modernization, project management, vendor coordination, technical procurement, and operational handover.
06 / PROFESSIONAL EXPERIENCE
Engineering depth. Delivery responsibility.
From network implementation and enterprise operations to infrastructure architecture, cloud platforms, and industrial IT/OT.
HANDS-ON ENGINEERING.
INFRASTRUCTURE PROJECT DELIVERY.
INFRASTRUCTURE PROJECT DELIVERY.
INDUSTRY EXPERIENCE
March 2026 – PresentCURRENT
IT/OT Network & Security Senior Engineer
PT Indo Raya Tenaga
Cilegon, Indonesia
Supporting IT and OT infrastructure for the Jawa 9 & 10 power-generation environment.
- Provide Level 2 support for IT/OT infrastructure.
- Support network, server, virtualization, backup, and cybersecurity systems.
- Perform infrastructure assessment and troubleshooting.
- Develop infrastructure documentation and technical baselines.
- Support IT/OT cybersecurity and segmentation improvements.
- Support Instrumentation & Control (I&C) and related IT/OT projects.
- Develop technical specifications and Scope of Work for infrastructure initiatives.
- Coordinate infrastructure preparation, implementation, vendors, and engineering teams.
August 2022 – February 2026
OT Network & Security Engineer
PT NS BlueScope Indonesia
Cilegon, Indonesia
Infrastructure Project Management / OT Project Delivery
Managed country-level IT/OT infrastructure projects from requirements and technical planning through implementation and operational handover, alongside OT network and cybersecurity responsibilities.
Engineering responsibilities
- Managed and secured OT networks supporting Manufacturing Automation and Digital systems.
- Supported OT cybersecurity deployment, patching, and incident remediation.
- Maintained L2/L3 manufacturing infrastructure.
- Supported server, virtualization, and backup infrastructure.
- Provided L2 support for IP-based CCTV systems.
Project management responsibilities
- Managed country-level IT/OT infrastructure projects.
- Gathered requirements and defined technical scope.
- Developed implementation plans and project schedules.
- Managed project budgets and forecasts.
- Assessed technical, delivery, and operational risks.
- Coordinated plant teams, vendors, regional stakeholders, and technical specialists.
- Supported technical procurement and vendor evaluation.
- Supervised implementation and commissioning activities.
- Managed documentation, training, and operational handover.
December 2021 – June 2022
DevOps Engineer
Prixa.ai
Jakarta, Indonesia
Built and operated cloud application infrastructure with Google Cloud Platform, Kubernetes, and automated delivery tooling.
- Built cloud infrastructure using Google Cloud Platform and worked with Kubernetes.
- Implemented Cloudflare WAF and automated deployments.
- Managed Jenkins CI/CD pipelines.
- Managed Datadog monitoring and alerting.
- Conducted R&D for infrastructure automation and DevOps tooling.
March 2021 – September 2021
IT System Architect
Komisi Pemberantasan Korupsi Republik Indonesia (KPK RI)
Jakarta, Indonesia
Designed infrastructure architecture based on business requirements and led technical evaluations and Proofs of Concept.
- Designed infrastructure architecture based on business requirements.
- Translated requirements into scalable and secure technical solutions.
- Led technical evaluations and technology Proofs of Concept.
January 2017 – March 2021
IT Operations Specialist
Komisi Pemberantasan Korupsi Republik Indonesia (KPK RI)
Jakarta, Indonesia
Led data center network operations and supported enterprise infrastructure, procurement, IT policy, and internal technical training.
- Led data center network operations.
- Supported voice, server, and wireless infrastructure.
- Deployed and supported Cisco Nexus, ISR, ASA, and ISE.
- Worked with FortiGate, Check Point, F5, Aruba, and AWS.
- Supported procurement, developed IT policies, and delivered internal technical training.
April 2013 – January 2017
Network Engineer
PT Nusantara Compnet Integrator
Jakarta, Indonesia
Delivered turnkey network and wireless projects, including site implementation, migration, and cutover activities.
- Delivered turnkey network and wireless projects.
- Implemented and troubleshot Cisco and Fortinet solutions.
- Prepared technical documentation and supervised site implementation.
- Supported network migration and cutover activities.
- Coordinated project activities at customer sites.
May 2012 – April 2013
Network Engineer
PT Wave Communication Indonesia
Jakarta, Indonesia
Implemented wired and wireless broadband infrastructure using Cisco and Motorola platforms.
- Implemented wired and wireless broadband solutions.
- Worked with Cisco and Motorola platforms.
- Configured indoor and outdoor access points.
- Supported network installation and troubleshooting.
07 / FULL PROJECT INVENTORY
A broader body of work.
Explore current IT/OT work, completed industrial projects, earlier enterprise networking, and operational improvement initiatives.
Major case studies12
Supporting projects09
Engineering initiatives05
08 / TECHNOLOGY STACK
The tools behind the work.
Platforms and technologies across networking, security, virtualization, recovery, and cloud infrastructure.
01Networking
02Cybersecurity
03Virtualization
04Backup
05Server
06Cloud & DevOps
07Monitoring / Management
08Wireless Assessment
09 / CERTIFICATIONS
Professional foundations.
Project management, procurement, and networking credentials, with historical certifications explicitly identified.
CERTIFICATION
Google Project Management
Issued July 2024
CERTIFICATION
Certified Government Procurement - Basic Level
Issued 2020
HISTORICAL / EXPIRED
Cisco Certified Network Professional (CCNP R&S & Wireless)
Expired 2019
HISTORICAL / EXPIRED
Cisco Certified Network Associate (CCNA R&S & Wireless)
Expired 2019
10 / TRAINING & PROFESSIONAL DEVELOPMENT
Learning across disciplines.
Course and training history, presented separately from certifications.
- 2023TRAINING
NS BlueScope Project Management Foundation
NS BlueScope
- 2021TRAINING
AWS Cloud Practitioner, Technical & Security Essentials
AWS
- 2021TRAINING
OpenShift: Containers & Kubernetes
Digitalent Kominfo
- 2019TRAINING
Red Hat System Admin I & II
Inixindo Jakarta
- 2019TRAINING
Cisco CyberOps Associate
Cisco / Digitalent Kominfo
- 2018TRAINING
Python Programming Essentials
Cisco NetAcad
- 2018TRAINING
CISSP Exam Preparation
ITG.ID
11 / EDUCATION
Bachelor of Computer Science (S.Komp)
Institut Pertanian Bogor, Indonesia
GRADUATED MARCH 2012
12 / CURRENTLY LEARNING
Continuous improvement.
Developing practical capability in industrial cybersecurity, monitoring, and resilient network architecture.
FOCUS / 01
IEC 62443
Industrial cybersecurity architecture, zones and conduits, security lifecycle, and practical OT security implementation.
Ongoing learning
FOCUS / 02
OT Cybersecurity
Asset visibility, segmentation, secure architecture, monitoring, hardening, and incident-response fundamentals.
Ongoing learning
FOCUS / 03
SOC & Security Monitoring
Security operations, log management, detection, and monitoring across IT/OT environments.
Ongoing learning
FOCUS / 04
Industrial Network Architecture
Reliability, maintainability, segmentation, and security of industrial communication infrastructure.
Ongoing learning
13 / ENGINEERING PHILOSOPHY
Designed to work. Ready to hand over.
01
Secure.
Communication should be explicitly understood and controlled.
02
Reliable.
Security improvements must respect operational availability.
03
Recoverable.
Infrastructure should be designed so systems can be restored confidently.
04
Maintainable.
Infrastructure should be understandable by the next engineer.
05
Documented.
A system that exists only in one person’s memory is an operational risk.
06
Deliverable.
A technical solution is not complete until it has been tested, documented, accepted, and handed over to operations.
14 / START A CONVERSATION
Let’s connect.
Interested in IT/OT networking, industrial cybersecurity, infrastructure architecture, or infrastructure project delivery?
I’m always interested in discussing engineering challenges, industrial technology, and practical infrastructure modernization.
Cilegon, Indonesia