# Alexios Giazitzis

Alexios Giazitzis is a remote worker on Himalayas, Junior Partner & Computer Vision Engineer at Angely, based in Greece.

Source: https://himalayas.app/@alexiosgiazitzis

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

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Greece |
| Authorized to work in | Greece |
| Salary expectations | 50k+ EUR |
| Job categories | Computer Vision Engineer, Software Developer, Researcher, Backend Engineer |
| Skills | Computer Vision, Deep Learning, Metric Learning, Meta Learning, Object Detection, Convolutional Neural Networks, Edge Deployment, Stereoscopy, Image Processing, Synthetic Data Generation, Riemannian Geometry, Optimization, Earth Observation Image Preprocessing, Python, PyTorch |
| LinkedIn | https://linkedin.com/in/alexios-giazitzis |
| GitHub | https://github.com/AlexGiazitzis |

## About

```text
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

### Junior Partner & Computer Vision Engineer (current)

Angely. Jun 2026 - Present

```text
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.
```

Skills: Computer-Vision, CNN, Object-Detection, Tensor-Processing, Communication-Protocols

### Software Developer (current)

EmTech Space. Mar 2025 - Present

```text
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.
```

Skills: Earth-Observation, Pre-processing, Parallel-Processing, Backend-Engineering, Web-Platform

### Independent Researcher

Signature Verification & Riemannian Geometry. Aug 2023 - Jul 2026

```text
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.
```

Skills: Metric-Learning, Meta-Learning, Riemannian-Geometry, PyTorch, Signature-Verification

### Mandatory Military Service

Hellenic Armed Forces. May 2024 - Feb 2025

```text
Completed mandatory military service in the Hellenic Armed Forces.
```

## Education

### University of West Attica

PhD, Electrical and Electronics Engineering. 2026 - Present

```text
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

Integrated Master's Degree, Electrical and Electronics Engineering. 2017 - 2023. Grade: 7.24/10

```text
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

- NumPy
- Pandas
- OpenCV
- scikit-image
- Python
- C++
- PyTorch
- MLflow
- scikit-learn
- Git
- Docker

To contact Alexios, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

## People also viewed

- [Georgios Terzoglou](https://himalayas.app/@georgiosterzoglou): Machine Learning Engineer (Part Time Contract), Traffic Technique
- [Stavros Moutsis](https://himalayas.app/@stavrosmoutsis): AI & Computer Vision Engineer, Democritus University of Thrace
- [Nikos Kyriazis](https://himalayas.app/@nikoskyriazis): Senior ML/AI Engineer, Sthenos AI
- [Dimitris Giannakopoulos](https://himalayas.app/@dimitrisgiannakopoul): Software & Data Engineer (Mandatory Military Service), Hellenic Navy Athens Naval Hospital
- [Thomas Ferentinos](https://himalayas.app/@thomasferentinos): Machine Learning Research Associate, International Hellenic University
- [Δημοσθένης Ελμάς](https://himalayas.app/@0007479): Research Collaborator, Clinical Research Team
- [Antonis Vogiatzis](https://himalayas.app/@antonisvogiatzis): Senior Computer Vision/ Machine Learning Engineer, nvisionist
- [Iordanis Arnidis](https://himalayas.app/@iordanisarnidis): Researcher / Developer – EU Research Projects, Independent Power Transmission Operator (IPTO)
- [Savvas Tsimperis](https://himalayas.app/@savvastsimperis): Administrative Sergeant, Hellenic Army
- [Nikitas Sourdakos](https://himalayas.app/@nikitassourdakos): Computer Vision / Deep Learning Engineer, Sthenos AI