Who I am
I build modern, high-performance web applications with clean architecture and a focus on long-term scalability.
My name is Stelios Kitziris, and I’m a Senior Software Engineer with more than a decade of experience designing, building, and modernizing advanced web applications. Since 2013, I have specialized in Vue.js, Nuxt, JavaScript, TypeScript, Node.js, and Laravel, creating fast, scalable, and maintainable digital solutions for companies across Europe and the US.
For the past two years, I have also been working as a freelancer, helping businesses modernize their digital products, automate internal processes, and upgrade outdated systems. During this time, I've successfully delivered 40+ projects for clients ranging from startups to international enterprises.
I help companies transform old, inefficient systems into modern, high-performance applications — with a strong focus on legacy migration, custom dashboards, and converting complex Excel workflows into automated web-based platforms.
Experience
Ingenuity
Digital Marketing
Professional Summary
I combine technical expertise, product thinking, and clean software architecture to deliver solutions that are both elegant and robust. My development philosophy focuses on clarity, long-term maintainability, and performance.
Work Experience
Freelance Senior Software Engineer
Delivering end-to-end solutions for B2B and B2C clients across Europe.
Expertise in:
Legacy modernizations (Vue 2 → Vue 3 / Angular → Vue / jQuery → Vue)
Custom dashboards & BI tools
Workflow automation & system integrations
Vue/Nuxt architectures for SaaS and enterprise systems
Delivered 40+ production-level projects across gaming, fintech, travel, public sector, and digital agencies.
Senior Frontend Engineer — White Hat Gaming
Led the modernization of mission-critical systems using Vue 3, Composition API, and scalable state management. Contributed to high-traffic gaming platforms and UI architecture.
Software Engineer — Netguru (Global Consultancy)
Delivered full-stack features using Node.js, Express, Vue, React, and relational/non-relational databases. Worked with international teams and global brands.
Lead Software Engineer — Draxis Environment
Led engineering teams and delivered more than 15 applications using Laravel, Vue.js, Node.js, and modern DevOps workflows.
Core Expertise
Legacy Code Modernization
Modernizing outdated frontends into scalable Vue/Nuxt ecosystems.
Custom Dashboards & Automation
Converting complex Excel business logic into fully interactive web tools.
Advanced Frontend Architecture
Reusable design systems, scalable state management, TypeScript-first codebases.
Backend Engineering
Node.js, Express, Laravel, REST APIs, authentication & performance tuning.
Technical Skills
Frontend: Vue 2/3, Nuxt, Pinia, Vuex, JS/TS, TailwindCSS, PrimeVue
Backend: Node.js, Express, Laravel, PHP, MySQL, Postgres, MongoDB
DevOps: Docker, CI/CD, GitLab, GitHub, Bitbucket
Tools: Figma, n8n automations, analytics integrations
Selected Projects
Modernization of enterprise gaming platform (Vue 3 migration)
BI dashboard replacing multi-sheet Excel workflows
Environmental monitoring & data visualization tools
International travel planning & logistics systems
Real-time frontend for high-traffic betting platforms
Education
BSc in Computer Science
Specialization: Software Engineering & Web Architecture
Beyond the Code
Outside of work, I enjoy gaming, guitar, and cycling — passions that keep me creative and grounded.
Let’s Work Together
If your business needs to:
✔ upgrade a legacy system
✔ build a custom dashboard
✔ automate workflows
✔ migrate to Vue 3 / Nuxt
✔ or improve your product’s frontend architecture
—I’d be happy to help.
