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Alexios Giazitzis

@alexiosgiazitzis

Computer vision engineer at Angely optimizing vision models for edge deployment and speeding up object detection by 2.5x.

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At Angely, I fine-tuned a small object detection CNN that runs 2.5 times faster than the main system. I also increased tensor processing speed by 15% and redesigned the vision module’s communication protocol, making it 30% faster.

At EmTech Space, I implemented an Earth Observation preprocessing pipeline for Simera Sense HyperScape100 imagery, cutting processing time by an average of 20% through parallel processing. I also served as technical manager and backend engineer on the Golden Twins platform, building report and map generation to meet runtime targets.

As an independent researcher, I designed SigmML, a recurrent metric meta-learning network on the symmetric positive definite matrix manifold. My research outperformed state-of-the-art models in two papers, reducing equal error rate from an average of 0.3% to under 0.05% in intra- and cross-dataset tests.

I’m a PhD student in Electrical and Electronics Engineering at the University of West Attica, researching synthetic data generation with computer vision and data-driven models to improve the robustness of systems with limited training data. I’m also a first author of three peer-reviewed papers published at WACV, ICDAR, and Expert Systems with Applications.

Experience

Work history, roles, and key accomplishments

AN
Current

Junior Partner & Computer Vision Engineer

Angely

Jun 2026 - Present (5 months)

Fine-tuned an auxiliary small object detection CNN that runs 2.5 times faster than the main system. Increased tensor processing speed by 15% and redesigned the vision module's communication protocol, making it 30% faster.

ES
Current

Software Developer

EmTech Space

Mar 2025 - Present (1 year 8 months)

Implemented a Level 1B to Level 2 Earth Observation preprocessing pipeline for Simera Sense HyperScape100 imagery, cutting processing time by 20% through parallel processing. Served as technical manager and backend engineer for Golden Twins, an EO pipeline web platform.

SG

Independent Researcher

Signature Verification & Riemannian Geometry

Aug 2023 - Jul 2026 (2 years 11 months)

Designed SigmML, a recurrent metric meta-learning network on the symmetric positive definite matrix manifold. Outperformed state-of-the-art models, reducing equal error rate from 0.3% to under 0.05% across multiple datasets.

HF

Mandatory Military Service

Hellenic Armed Forces

May 2024 - Feb 2025 (9 months)

Completed mandatory military service in the Hellenic Armed Forces.

Education

Degrees, certifications, and relevant coursework

University of West Attica logoUA

University of West Attica

PhD, Electrical and Electronics Engineering

2026 -

PhD student in Electrical and Electronics Engineering, focusing on synthetic data generation for improving robustness of systems with limited training data.

University of West Attica logoUA

University of West Attica

Integrated Master's Degree, Electrical and Electronics Engineering

2017 - 2023

Grade: 7.24/10

Integrated Master's degree in Electrical and Electronics Engineering with a thesis on meta-heuristic optimization methods on SPD manifolds and applications to computer vision.

Tech stack

Software and tools used professionally

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