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Hi, I'm Tony Gaitatzis, a senior software engineer with over 15 years of experience specializing in machine learning and full-stack development. I've had the opportunity to work on exciting projects ranging from developing AI models for weather and load forecasting to creating encrypted developer tools and wearable IoT devices. I'm passionate about leveraging technology to create impactful, resilient, and scalable solutions. I enjoy collaborating across teams and leading innovative projects, whether that's in enterprise environments or hands-on product development. Writing technical books and sharing knowledge in the developer community is also something I greatly value. I'm always eager to explore new technologies and push the boundaries of what's possible with software engineering.…Hi, I'm Tony Gaitatzis, a senior software engineer with over 15 years of experience specializing in machine learning and full-stack development. I've had the opportunity to work on exciting projects ranging from developing AI models for weather and load forecasting to creating encrypted developer tools and wearable IoT devices. I'm passionate about leveraging technology to create impactful, resilient, and scalable solutions. I enjoy collaborating across teams and leading innovative projects, whether that's in enterprise environments or hands-on product development. Writing technical books and sharing knowledge in the developer community is also something I greatly value. I'm always eager to explore new technologies and push the boundaries of what's possible with software engineering.

Tony Gaitatzis

Full Stack Developer, Developer, Programmer, +2

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Hi, I'm Tony Gaitatzis, a senior software engineer with over 15 years of experience specializing in machine learning and full-stack development. I've had the opportunity to work on exciting projects ranging from developing AI models for weather and load forecasting to creating encrypted developer tools and wearable IoT devices. I'm passionate about leveraging technology to create impactful, resilient, and scalable solutions. I enjoy collaborating across teams and leading innovative projects, whether that's in enterprise environments or hands-on product development. Writing technical books and sharing knowledge in the developer community is also something I greatly value. I'm always eager to explore new technologies and push the boundaries of what's possible with software engineering.…Hi, I'm Tony Gaitatzis, a senior software engineer with over 15 years of experience specializing in machine learning and full-stack development. I've had the opportunity to work on exciting projects ranging from developing AI models for weather and load forecasting to creating encrypted developer tools and wearable IoT devices. I'm passionate about leveraging technology to create impactful, resilient, and scalable solutions. I enjoy collaborating across teams and leading innovative projects, whether that's in enterprise environments or hands-on product development. Writing technical books and sharing knowledge in the developer community is also something I greatly value. I'm always eager to explore new technologies and push the boundaries of what's possible with software engineering.

Available to hire

Hi, I’m Tony Gaitatzis, a senior software engineer with over 15 years of experience specializing in machine learning and full-stack development. I’ve had the opportunity to work on exciting projects ranging from developing AI models for weather and load forecasting to creating encrypted developer tools and wearable IoT devices. I’m passionate about leveraging technology to create impactful, resilient, and scalable solutions.

I enjoy collaborating across teams and leading innovative projects, whether that’s in enterprise environments or hands-on product development. Writing technical books and sharing knowledge in the developer community is also something I greatly value. I’m always eager to explore new technologies and push the boundaries of what’s possible with software engineering.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at Siemens GmbH

January 1, 2023 - Present

Full-Stack development of high-availability, distributed enterprise software systems. Conducted Large Language Model research for chatbots and search functionalities, developed deep learning models for weather prediction and electricity load forecasting, improving grid management efficiency. Developed and launched a global web application delivering 99.9% uptime by implementing resilient REST APIs and reactive front-end, serving multiple design partners. Technology stack included Java, Spring Framework, Angular, Kafka, Kubernetes, Docker, WebSockets, and REST.

Senior Software Engineer at Naisho GmbH

January 1, 2023 - July 14, 2025

Full-Stack development of open-source end-to-end encrypted developer tools. Developed and documented an encryption library and designed encryption key management enabling account holders to manage contributors to shared encrypted resources. Presented work at conferences and meetups to raise awareness. Tech stack involved TypeScript, React Native, C++, GraphQL, and Elliptic Curve Encryption.

Software Engineer & Consultant at Freelance, Thessaloniki, Greece

January 1, 2022 - July 14, 2025

Contributor to open-source blockchain and machine learning projects. Built natural language processing applications to enhance sales marketing strategies, developed predictive analytics for optimizing sales and inventory management on e-commerce platforms. Architected logistics and supply-chain software integrating government-invoice tracking for small stores.

Embedded Engineer at Zackees

January 1, 2016 - July 14, 2025

Developed Bluetooth-Low-Energy rechargeable wearable IoT devices including native Android and iOS apps for device control and video streaming. Utilized Arduino 101 hardware neural networks for real-time LED visualizations based on music processing and beat recognition. Featured on America’s Greatest Makers TV show. Led cost reductions by working directly with factories and suppliers in Shenzhen and Hong Kong.

CTO and Founder at Personal Neuro

January 1, 2014 - July 14, 2025

Led development of wearable Bluetooth-Low-Energy brainwave sensor headset in collaboration with university research. Programmed and trained neural networks for real-time pattern recognition of brainwave data. Managed engineering team for neural network models for EEG signal processing and analysis.