Full Stack Developer
& React Native
Engineer
I'm Krisztián Szalai, from Budapest, Hungary. Full Stack developer with over 7 years of experience crafting seamless web and mobile experiences. I specialize in building high-performance React Native applications, but I am also skilled in web development.
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Career Journey
A look back at my professional path, the challenges I've tackled, and the impact I've made at each stop along the way.
Senior Frontend Developer
StellarUp/Morrison Street Advisors • Remote
Built a multi-tenant industrial monitoring platform with Next.js, delivering real-time alerts, dashboards, and data-management workflows with secure role-based access
Senior Frontend Developer
StellarUp • Remote
Built a mobile application prototype for a social media and lifestyle platform with a connected webstore
Full Stack Mobile Developer
Gridlock Inc. • Remote
Shipped a secure cryptocurrency mobile wallet for iOS and Android
Full Stack Software Developer
Viddl • Budapest, Hungary
Maintained and enhanced web and mobile applications
Web Developer
Asseco Central Europe Zrt. • Budapest, Hungary
Contributed to the development of an Information Sharing Platform for Hungarian healthcare organizations
Let's Build Something Great Together
Got an idea? Whether you're a visionary startup or an established brand looking to innovate, I'm here to help you bring it to life. Here's how we'll make it happen:
Understanding Your Vision
Let's start by exploring your ideas and goals together. I'll help you shape and refine your vision into a concrete plan.
The Plan
- In-depth consultation
- Goal exploration
- Technical possibilities
- Strategic planning
The Outcome
- Detailed project vision
- Technical roadmap
- Timeline & milestones
- Resource outline
Crafting the Blueprint
Together, we'll design a solution that's not just functional, but scalable and future-proof for your growing needs.
The Plan
- Collaborative design sessions
- Technology selection
- User experience planning
- Security & scaling strategy
The Outcome
- System blueprint
- Technology stack
- Interactive prototypes
- Security framework
Bringing Ideas to Life
Watch your vision become reality through iterative development. Regular updates keep you involved every step of the way.
The Plan
- Iterative development
- Continuous collaboration
- Quality assurance
- Progress reviews
The Outcome
- Working software
- Quality reports
- Documented code
- Progress insights
Launch & Growth
Your success is my priority. I'll ensure a smooth launch and provide ongoing support to help your solution thrive.
The Plan
- Strategic deployment
- Performance optimization
- Knowledge transfer
- Growth support
The Outcome
- Production release
- Training resources
- Maintenance plan
- Growth roadmap
Ready to get started?
Whether you have a fully-fledged plan or just a rough concept, I'd love to hear it. Let's chat and figure out the best way to move forward.
Let's talk about your projectTech Stack
frontend
React
React Native
Next.js
Angular
TypeScript
JavaScript
backend
Node.js
Nest.js
Express.js
MongoDB
PostgreSQL
tools
Git
Docker
Jest
Expo
CI/CD
Selected Works
A curated selection of my recent work, showcasing technical challenges and creative solutions.
WebIndustrial Monitoring Platform (Multi-tenant)
Multi-tenant industrial monitoring platform with real-time alerts, dashboards, and secure role-based workflows built with Next.js.
MobileSocial Media and Lifestlye Platform
A social platform connecting influencers with brands for marketing collaborations, featuring both a React Native mobile app and a Next.js web application.
WebRouter Management System (Cablesight)
Rewrote an existing PHP-based system into a cross-platform React Native application (including web via react-native-web) for managing routers, networks, and customers.
MobileMobile Crypto Wallet (Gridlock)
Led the development of secure data backup, offline mode, and account recovery features for a self-custodial crypto wallet application.
WebE-Learning Platform (HSUP)
Created a high-availability E-learning platform supporting thousands of students, featuring interactive content, online tests, and collaborative tools.
MobilePackage Delivery and Tracking System (Viddl)
A comprehensive package delivery tracking application with real-time map visualization, route optimization, and courier management.
Let's Connect
Have a project in mind? Let's create something extraordinary together.
Contact Info
Based in Budapest, Hungary