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Konstantinos GerogiannisKG
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Konstantinos Gerogiannis

@konstantinosgerogian

AI Engineer who developed AI solutions with LLMs at Yanyi FZ LLC and built a secure, end-to-end encrypted chat app.

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At Yanyi FZ LLC, I worked with LLMs to create AI solutions, using Azure services including Functions, Cosmos DB, and Document Intelligence. I explored models and tools including OpenAI, Gemini, Claude, Cohere, Llama 3, and Mistral, alongside RAG and vector stores.

At Eschos-IT, I developed an internal chat app with Flutter, Python Flask, and MySQL. It supported group and one-to-one chats, media and voice messages, and used two layers of end-to-end encryption.

During my service in the Hellenic Army, I contributed to a VR game for soldier training, with up to eight simultaneous players. I upgraded NPCs using AI and connected the game to an SQL database for soldiers' statistics. I studied Electrical and Computer Engineering at Aristotle University of Thessaloniki, where I became especially interested in AI applications in medicine and other practical settings.

Experience

Work history, roles, and key accomplishments

Covered by NDA logoCN

Artificial Intelligence Engineer

Mar 2026 - Aug 2026 (5 months)

Worked as Artificial Intelligence Engineer at Covered by NDA.

AI2CYBER logoAI

AI Engineer

Feb 2025 - Mar 2026 (1 year 1 month)

Worked as AI Engineer at AI2CYBER.

LINK TECHNOLOGIES S.A logoLS

AI Engineer

Feb 2025 - Aug 2025 (6 months)

Worked as AI Engineer at LINK TECHNOLOGIES S.A.

AI2CYBER logoAI

AI Engineer

Jul 2024 - Feb 2025 (7 months)

Worked as AI Engineer at AI2CYBER.

Yanyi FZ LLC logoYL

AI Engineer

Apr 2024 - Jun 2024 (2 months)

Working with LLMs for creating AI solutions
Making use of Azure Portal: Azure functions, durable functions, storage, cosmos
DB, document intelligence, cost management
Keywords: LLMs, OpenAI, Gemini, Claude, Cohere, LLAMA 3, Mistral, RAG, Vector
Stores

Eschos-IT logoES

Full Stack Engineer

Jul 2023 - Mar 2024 (8 months)

I developed a chat app for the company´s internal use. The front end of the app is written in Flutter, Python Flask is used for the server and MySQL for the database. The app contains normal chatting, group chatting, sending images, videos, and voice messages and its main advantage is the increased security, using End-to-End Encryption, with 2 layers of encryption.

Hellenic Army  logoHA

Game Developer

Sep 2022 - Jun 2023 (9 months)

Development of a VR game that involves up to 8 simultaneous players, using weapon replicas (G3A3 or pistol), aims for soldier training. The team was made up of 6 programmers/engineers, each one having a different role. I was responsible for the project’s development, achieving time deadlines, and the work relationships. I also upgraded the existing versions of NPCs using AI and created and connect

Education

Degrees, certifications, and relevant coursework

MI

Microsoft

Microsoft Certified: SQL AI Developer Associate

Sep 2026 · Expires Sep 2027

UH

University of Helsinki

Introduction to the Internet of Things - MOOC

Jun 2025

CO

Columbia+

Learning AI Through Visualization

Jun 2025

UD

Udemy

Data Science Career Path

Dec 2024

RE

ReGeneration

Project Future, powered by ReGeneration | Business Intelligence & Data Sciences | 100 hours hands-on

Jan 2024

MU

Macquarie University

Data Visualization in Excel

Jan 2024

HA

HackerRank

Problem Solving (Basic)

Jan 2024

HA

HackerRank

Problem Solving (Intermediate)

Jan 2024

HA

HackerRank

SQL (Intermediate)

Jan 2024

UI

University of California, Irvine

Project Management: The Basics for Success

Jan 2024

HA

HackerRank

Python (Basic)

Jan 2024

CO

Code.Hub

ReGeneration Academy on Business Intelligence & Data Engineering

Jan 2024

HA

HackerRank

SQL (Advanced)

Jan 2024

HA

HackerRank

SQL (Basic)

Jan 2024

AA

Aristotle University of Thessaloniki (AUTH)

Integrated MSc, Electrical and Computer Engineering

2018 - 2023

FR

freeCodeCamp

Foundational C# with Microsoft

Oct 2023

MI

Microsoft

Career Essentials in Generative AI by Microsoft and LinkedIn

Jul 2023

LI

LinkedIn

Communication Foundations

Jul 2023

LI

LinkedIn

Ethics in the Age of Generative AI

Jul 2023

LI

LinkedIn

Generative AI: The Evolution of Thoughtful Online Search

Jul 2023

LI

LinkedIn

Introduction to Artificial Intelligence

Jul 2023

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