SCADA Defense · IEC 62443 · Barcelona
Engineering Resilience.
Protecting Clean Energy.
I'm a Senior Cybersecurity & OT Network Architect at DNV GreenPowerMonitor. I design fault-tolerant industrial networks, deploy zero-trust architectures, and safeguard utility-scale solar and wind across the European grid.
- 5+ GW
- Renewables monitored
- 150+
- Substations hardened
- <20ms
- Moxa ring failover
- 0
- Critical OT breaches
01 · The Expat Narrative
Bridging continents & disciplines.
Adaptability & global vision — UPC BarcelonaTech alumnus.
Phase 01 · Chennai, India
2012 – 2016
Mechanical Precision & Product Design
Began as a product design engineer solving mechanical tolerances and system constraints — building a tactile intuition for how physical equipment and actuators behave in the real world.
Phase 02 · Barcelona, Spain
2016 – 2018
Master's in Aerospace Science & Technology
Relocated to Catalonia for UPC BarcelonaTech. Mastered mission-critical systems, telemetry links, orbital mechanics, and multinational collaboration.
Phase 03 · Deep-Dive Mastery
Self-taught
Enterprise Networking Pivot
Built an extensive home lab mastering routing, switching, and IPsec crypto fabrics, dissecting every protocol layer through the Cisco CCNA curriculum.
Phase 04 · DNV GreenPowerMonitor
Current
Senior Lead, European SCADA & OT Defense
Bridging PLCs, inverters, and substation RTUs with enterprise cybersecurity — protecting multi-gigawatt renewable assets feeding the clean energy transition.
02 · Technical Arsenal
OT architecture & defense grid.
Hardened Network Fabrics
- ◆Fortinet FortiGate active-passive clusters
- ◆Cisco Catalyst, ASA, OSPF/BGP
- ◆Moxa Turbo Ring & Turbo Chain
- ◆Site-to-site IPsec & ZTNA
Systems & Hypervisors
- ◆VMware ESXi & vCenter hardening
- ◆Hyper-V failover clustering
- ◆Windows Server, AD, offline WSUS
- ◆Redundant iSCSI SAN & Synology NAS
OT Protocols
- ◆Modbus TCP/RTU
- ◆DNP3 / Secure
- ◆IEC 60870-5-104
- ◆OPC UA / DA
- ◆Suricata IDS rules
Compliance
- ◆IEC 62443 — SL-3 ready
- ◆NIST SP 800-82
- ◆ISO/IEC 27001
- ◆EU NIS2 Directive
03 · Production Impact
Impact at scale.
April 2026 – Present · Barcelona, Spain
Senior Cybersecurity Engineer · DNV GreenPowerMonitor
Senior technical authority and highest escalation point for critical IT/OT infrastructure. Architecting zero-trust perimeters across multi-gigawatt plant fleets, driving IDS/IPS rollout, and hardening zones to IEC 62443.
April 2024 – April 2026 · Barcelona, Spain
IT Systems Engineer · DNV GreenPowerMonitor
Deployed bare-metal hypervisors running SCADA for utility-scale solar and wind. Engineered Moxa redundancy rings, FortiGate policies, NAT traversal, and site-to-site IPsec meshes.
Featured case study · Published on LinkedIn
Breakdown of Key IT/OT Cybersecurity Trends in Renewable Energy
Why IT/OT cybersecurity is now a customer issue, a business issue and, increasingly, a regulatory one for critical infrastructure operators — from the gap between compliance and true resilience to visibility, patching lifecycles, and driving SecOps from detection to response.
◆ Compliance ≠ resilience◆ Patching lifecycle◆ Detection → response◆ Regulatory pressure (NIS2)
Read the full article on LinkedIn →
Featured case study
150 MW Solar PV — zero-trust segmentation
Replaced unmanaged switches with a dual Moxa Turbo Chain, isolated Modbus into dedicated VLANs, and deployed FortiGate inspection at the substation demarcation.
Failover: 45 s → <18 ms · zero lost telemetry records
Beyond the firewall
Science · Spirit · Society
The Blog
Quantum physics, AI, Shakti & Shiva, the layers of the mind.
Preanne Studios
Art and videos exploring the same ideas visually.
BCN God's Eye
Barcelona — an interactive project, opens on its own subdomain.
MAD God's Eye
Chennai — the same project, reimagined. Opens on its own subdomain.
YouTube
Video essays and visual pieces from Premrique — opens on YouTube.