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I'm Katerina Vassiliou, a Junior Software Developer with a passion for building full-stack applications and UX-driven design. At GivEnergy Software, I contribute across the entire development lifecycle, collaborating with product managers, designers, and QA engineers to translate requirements into responsive, accessible, and visually refined experiences. Starting in QA, I gained hands-on experience with testing practices and reliability, which informs my user-centered approach. My work includes wireframing in Figma, UI system design for IoT and consumer apps, and improving authentication flows, CI/CD pipelines, and monitoring to support reliable, scalable software.…I'm Katerina Vassiliou, a Junior Software Developer with a passion for building full-stack applications and UX-driven design. At GivEnergy Software, I contribute across the entire development lifecycle, collaborating with product managers, designers, and QA engineers to translate requirements into responsive, accessible, and visually refined experiences. Starting in QA, I gained hands-on experience with testing practices and reliability, which informs my user-centered approach. My work includes wireframing in Figma, UI system design for IoT and consumer apps, and improving authentication flows, CI/CD pipelines, and monitoring to support reliable, scalable software.

Katerina Vassiliou

Full Stack Developer, Front-End Developer, Back-End Developer, +2

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I'm Katerina Vassiliou, a Junior Software Developer with a passion for building full-stack applications and UX-driven design. At GivEnergy Software, I contribute across the entire development lifecycle, collaborating with product managers, designers, and QA engineers to translate requirements into responsive, accessible, and visually refined experiences. Starting in QA, I gained hands-on experience with testing practices and reliability, which informs my user-centered approach. My work includes wireframing in Figma, UI system design for IoT and consumer apps, and improving authentication flows, CI/CD pipelines, and monitoring to support reliable, scalable software.…I'm Katerina Vassiliou, a Junior Software Developer with a passion for building full-stack applications and UX-driven design. At GivEnergy Software, I contribute across the entire development lifecycle, collaborating with product managers, designers, and QA engineers to translate requirements into responsive, accessible, and visually refined experiences. Starting in QA, I gained hands-on experience with testing practices and reliability, which informs my user-centered approach. My work includes wireframing in Figma, UI system design for IoT and consumer apps, and improving authentication flows, CI/CD pipelines, and monitoring to support reliable, scalable software.

Available to hire

I’m Katerina Vassiliou, a Junior Software Developer with a passion for building full-stack applications and UX-driven design. At GivEnergy Software, I contribute across the entire development lifecycle, collaborating with product managers, designers, and QA engineers to translate requirements into responsive, accessible, and visually refined experiences.

Starting in QA, I gained hands-on experience with testing practices and reliability, which informs my user-centered approach. My work includes wireframing in Figma, UI system design for IoT and consumer apps, and improving authentication flows, CI/CD pipelines, and monitoring to support reliable, scalable software.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Junior Software Developer | Full Stack & UX Focus at GivEnergy Software Ltd

December 1, 2025 - December 1, 2025

At GivEnergy Software, I contributed across the full development lifecycle, combining full-stack engineering with design-led, user-centred thinking. I collaborated with product managers, designers, and QA engineers to translate requirements into responsive, accessible interfaces. Starting in QA, I gained hands-on experience in testing practices and reliability, which informs my approach to UX and development. Notable achievements include wireframes and prototypes in Figma, redesigning the SSO login during a major rebrand for accessibility and consistency, leading full-stack development of a bank service with Stripe webhooks for address verification, delivering UI systems for IoT and consumer apps, establishing a design system with actionable microcopy, and optimising CI/CD pipelines and monitoring for reliability.