Hellenic Navy · Athens, Greece

ThemistoklisSakkas

Lieutenant Commander · Naval Officer & Guided Weapons Engineer · AI for Maritime Systems
Frigate Operations Guided Weapon Systems NATO · UN · EU Missions MSc Cranfield University AI & Computer Vision
View Experience → Certifications
Themistoklis Sakkas
15
Years of Service
7
Ships Served
2
MSc Degrees
40
Largest Team Led
Themistoklis Sakkas
Hellenic Navy · 2011 — Present
Operations · Engineering · AI
Career
Operational Experience
09/2026 — Present Hellenic Naval War College
Lieutenant Commander
Hellenic Navy · OF-3
  • Operational design, organisation and control of naval operations
  • Decision-making in the management and control of maritime enterprises
02/2026 — 09/2026 FDI Frigate Systems Training Programme
FDI Frigate Systems Training
Hellenic Navy · Lieutenant · Reporting to the Commanding Officer, HS Formion
  • Systems, operations and platform integration of the new FDI frigate (Naval Group)
  • Command & Control (C2) systems ahead of the platform’s entry into service
2024 — 2026 HS Limnos · Frigate
Director of Operations
Hellenic Navy · Lieutenant
  • Ran the Combat Information Center for real-time tactical decision-making — team of 40
  • NATO SNMG-2, UN UNIFIL MAROPS, EU EUNAVFOR MED IRINI missions
  • Multinational exercises: Bright Star, Medusa, Niriis, Steadfast Dart
  • Surface, underwater and air threat engagement; electronic support and countermeasures
  • Annual and project budgets, personnel development, lessons-learned reviews
Themistoklis Sakkas
2023 — 2024 Defence Academy of the UK · Shrivenham
MSc Student — Guided Weapon Systems
Cranfield University · Reporting to the Hellenic Defence Attaché, London
  • Full-scope missile systems project: propulsion, guidance, warhead, energetics
  • Thesis: Investigative study of the INS sensor impact on the performance of the missile guidance system
  • Systems integration studies: platform–weapon interaction, C2 architecture, safety
  • Presented and defended design decisions before RN, RAF, Army, MBDA, Thales and Roxel experts
Themistoklis Sakkas
2022 — 2023 HS Naftilos · Hydrographic Vessel
Executive Officer
Hellenic Navy · Lieutenant — Team of 38
  • Hydrographic/oceanographic missions, safe navigation, timely data delivery
  • Logistics, budgeting, procurement, and supply chain management
Themistoklis Sakkas
2021 — 2022 HS Themistoklis · Frigate
Operations Officer
Hellenic Navy · Lieutenant Junior Grade — Team of 20
  • CIC management; surface, underwater and air-defense operations
  • Electronic countermeasures and situational awareness
Themistoklis Sakkas
2020 — 2021 Hydrographic Service
Operations Officer — NAVTEX
Hellenic Navy · Lieutenant Junior Grade — Team of 15
  • NAVTEX maritime safety broadcasts in line with IMO and national regulations
  • Liaison with the navy, coast guard and international partners; risk assessment and contingency planning
Themistoklis Sakkas
2016 — 2020 HS Aegean · Frigate
Operations Officer
Hellenic Navy · Lieutenant Junior Grade — Team of 20
  • 4 years: full spectrum naval operations, NATO/UN/EU missions, multinational exercises
  • ASW sonar operations, air defense radar management, electronic warfare
Themistoklis Sakkas
2013 — 2015 HS Stamou · Patrol Boat | HS Kavaloudis · FAC
Executive Officer / Navigation Officer
Hellenic Navy · Ensign
  • HS Stamou (2014–2015): Executive Officer, crew of 22 — logistics, procurement, budgeting, compliance
  • HS Kavaloudis (2013–2014): Navigation Officer — route planning, navigation and tactical communication systems
Themistoklis Sakkas
2011 — 2013 HS Kountouriotis · Frigate
Assistant Navigation Officer
Hellenic Navy · Ensign
  • Voyage planning, chart corrections, bridge watchkeeping, administrative records
Themistoklis Sakkas
Hands-on Development
AI & Computer Vision
01
2026 · Python · YOLO
SAR Ship Detection & Field-Robustness Study
Trained a YOLO object-detection model on a public SAR ship dataset and measured accuracy loss under simulated field conditions (speckle noise, blur, low contrast), assessing how detection models degrade outside lab conditions.
Maritime Domain Awareness
02
Ongoing · Kalman Filter · NVIDIA Jetson
Edge AI & Multi-Target Tracking
Extending the detector with Kalman-filter-based tracking on video streams and deploying it on NVIDIA Jetson edge hardware for onboard, low-power use.
Autonomous & Defense Systems
Academic
Education & Degrees
01
2007 — 2011
BS in Naval Science
Hellenic Naval Academy
Foundation Degree
02
2014 — 2015
MSc Shipping, Transport & International Trade
University of the Aegean
Thesis: UAVs in Maritime Security
03
2016 — 2017
PG Certificate — Advanced Space Systems Design
NASA (USA) & University of the Aegean
Microsatellite Manufacturing
04
2023 — 2024
MSc in Guided Weapon Systems
Cranfield University, UK (Defence Academy) · Control & Guidance
View Certificate →
05
March 2025
ECDIS Course — IMO Model 1.27
Costa Mare Training Center
View Certificate →
06
2025
Certificate in AI & Human Resources
Athens International College
View Certificate →
07
01/2026 — 05/2026
CS50’s Introduction to AI with Python
Harvard University (Online)
Completed
Deployments
Multinational Operations
NATO
SNMG-2
United Nations
UNIFIL MAROPS
European Union
EUNAVFOR MED IRINI
Exercise
Bright Star
Exercise
Medusa
Exercise
Niriis
Exercise
Steadfast Dart
Capabilities
Skills & Expertise
Naval Operations
Mission Planning & Execution
Combat Information Center
ASW / Air Defense / EW
Navigation & Bridge Watch
Maritime Security
Drone & Anti-Drone Operator
Engineering & Science
Guided Weapon Systems
Radar / EO-IR / Propulsion
Guidance, Control & INS Modelling
Space Systems Design
C2 · Link 11 / 16 / 22 · JREAP
AI & Software
Python / C / C++ / MATLAB
Computer Vision · YOLO · OpenCV
Kalman Tracking & Sensor Fusion
Edge AI · NVIDIA Jetson
Automation · Zapier / Make / Power Automate / APIs
Get in Touch
Contact
📧
Email
themsakkas@gmail.com
📱
Mobile
+30 6956 020 547
📍
Location
Athens, Greece
💼
LinkedIn
linkedin.com/in/themistoklis-sakkas