FULLSTACK DEVELOPER
Hello, I'm
Piotr
Pietryka
JavaScript
TypeScript
Next.js
NestJS
PostgreSQL
MongoDB
Meteor
React Hook Form
Zod
Redux
Express.js
Node.js
Tailwind
Styled Components
Figma
Photoshop
Prisma
Jest
LinuxWHO AM I?
About me
I'm a full-stack developer with 5+ years of experience building modern web applications. I enjoy creating complete products — from intuitive frontend interfaces to solid backend architecture and well-designed APIs.
What I Do
- Building complete web applications
- Designing and developing REST APIs
- Creating scalable frontend and backend architecture
- Connecting business needs with technical solutions
- Integrating third-party services and APIs
How I Work
- Clean and maintainable code
- Full ownership from concept to deployment
- Focus on usability and performance
- Practical problem-solving approach
- Continuous learning and improvement
Tech Stack
JavaScript Based
Full-Stack Development
API Design & Integration
System Architecture
What I Bring
A combination of continuous growth, practical experience, strong communication, and a reliable approach to building and delivering digital products.
Fast Growth
I dedicate a significant amount of time to focused learning and continuously strengthen my full-stack development skills.
Continuous Improvement
I constantly develop my programming skills through hands-on projects, practice, and real-world challenges.
Client Collaboration
I work directly with clients, communicate project requirements clearly, and help turn ideas into working solutions.
Reliable Delivery
I take ownership of my work, stay committed to deadlines, and focus on delivering projects with consistency and quality.
Projects
A look at the most significant projects I've been involved in, from multi-tenant SaaS platforms to interactive hardware UIs and complex API integrations.
Office & Building Management SaaS Platform
A multi-tenant SaaS admin platform for managing office spaces and entire buildings. Designed for both tenants and property managers, it streamlines workspace operations, building administration, and day-to-day facility workflows. Built with a strong focus on scalability, data validation, and maintainable form-driven experiences.
Technologies
Next.js
TypeScript
Prisma
PostgreSQL
Zod
React Hook Form
Jest
Interactive Building & Visitor Management Interfaces
A suite of complex interactive user interfaces for devices used in office space and building management, including guest handling and on-site interactions. Built from designed views and transformed into production-ready applications with many screens, advanced flows, and multiple user actions across the system.
Technologies
React
Styled Components
Redux- RTK Query
API Development & Third-Party Integrations
Development and extension of REST APIs in Express.js, including new routes, custom client-driven adjustments, and integrations with external systems. The work covered parking systems, access control integrations, SOAP and HTTP communication, RabbitMQ-based messaging, API documentation, and technical analysis of third-party specifications to estimate implementation effort.
Technologies
Express.js
Node.js- PostgreSQL
REST API
RabbitMQ- SOAP
- HTTP Integrations
Public Transport Display Templates
A collection of production templates created for public transport systems, currently used in bus and rail networks across major cities in Europe. Built under platform constraints using both vanilla JavaScript and React, these templates consume live vehicle data and deliver reliable, responsive interfaces for real-time transport operations.
Technologies
- JavaScript
- React
- Redux
- Redux Toolkit
Let's build something together
Im currently open to new opportunities.