Summary
Overview
Work History
Education
Skills
Websites
Timeline
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IOANNIS TZONIS

Software Engineer
PREVEZA

Summary

Results-driven and detail-oriented Software Engineer with proven expertise in developing scalable, maintainable, and user-centric web applications. Skilled in both front-end and full-stack development, with a strong focus on clean architecture, performance, and collaborative problem-solving. Eager to contribute to high-impact software initiatives while continuously advancing technical capabilities and staying aligned with industry best practices.

Overview

8
8
years of professional experience

Work History

Full Stack Engineer

AI2Cyber
02.2025 - Current
  • Designed, led, and developed two full-stack cybersecurity web platforms from scratch to production.
  • Conducted technical interviews and participated in code reviews to ensure team-wide code quality.
  • Applied best practices in secure coding, performance, and system design in cross-functional teams.

Front-End Software Engineer

Transifex
04.2023 - 12.2024
  • Contributed to the redesign of the main platform by implementing and developing a comprehensive design system, including core components with all the interaction states, typography, illustrations, color system a.o.
  • Developed multiple applications and pages as part of the redesign effort, addressing complex user needs and enhancing usability and functionality, successfully meeting set goals and deadlines.
  • Played a key role in design reviews, ensuring high-quality user interfaces and adherence to brand guidelines.
  • Maintained and improved the existing platform, resolving front-end issues and implementing optimizations.
  • Contributed to integration projects with third-party platforms such as Viber, Contentful, Figma, HubSpot, WordPress, and Zendesk, streamlining workflows.
  • Participated in three AI-themed hackathons, contributing innovative ideas and solutions; created several AI projects for research purposes.

Software Engineer

Freelancer
04.2017 - 03.2023
  • Designed and delivered dynamic portfolio websites for architects, engineers, and artists, tailored to highlight their unique strengths and branding.
  • Developed commercial websites for diverse industries, including real estate, e-commerce, and local businesses, ensuring responsive design and SEO optimization.
  • Built a full-stack e-commerce template, integrating modern technologies like Node.js, Express.js, EJS, MongoDB, and Stripe for seamless payment processing, with advanced security features and real-time user interaction via Socket.IO.
  • Created two original 2D platform games from concept to completion, utilizing JavaScript and Aseprite for animation and gameplay design.

Education

Bachelor Economic & Regional Development

Panteion University of Athens
Athens, GR

Skills

ReactJS

Typescript

Python

HTML / CSS

Tailwind / Bootstrap

Responsive Web Design

Animation / ThreeJS

Git

Jira

BackboneJS / MarionetteJS

RESTful APIs

GraphQL

Django

Figma / Balsamic

NodeJS / ExpressJS

MongoDB / MariaDB

Game Development

Video Game Design

Pixel-Art Animation

Adobe Photoshop / Corel Draw

Timeline

Full Stack Engineer

AI2Cyber
02.2025 - Current

Front-End Software Engineer

Transifex
04.2023 - 12.2024

Software Engineer

Freelancer
04.2017 - 03.2023

Bachelor Economic & Regional Development

Panteion University of Athens

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IOANNIS TZONISSoftware Engineer