Software Engineer with professional experience in building, maintaining, and evolving scalable systems.
Focused on frontend development, with emphasis on user experience, performance, and clean architecture.

• Software Engineer with approximately 5 years of industry experience
• Strong frontend orientation with fullstack background
• Experience working with production systems and long-lived codebases
• Interested in user interface design and international opportunities

General Statistics

Most Used Languages

• JavaScript
• TypeScript
• SQL

• Node.js
• RESTful APIs
• Authentication and authorization
• Background jobs and external integrations

• React
• HTML5
• CSS3

• PostgreSQL
• MySQL
• NoSQL fundamentals

• Git and GitHub
• Docker
• CI/CD fundamentals
• Linux-based environments

• Clean Architecture and separation of concerns
• SOLID principles
• API versioning and documentation
• Error handling, observability, and logging
• Refactoring and technical debt management

• Continuous study of frontend technologies and user experience
• Hands-on experimentation through proof-of-concept repositories
• Focus on improving UI/UX design and frontend architectural decisions

Pinned repositories on this profile showcase:

• Frontend-focused projects
• UI/UX experiments and technical studies
• Component libraries and user interface systems

Each repository includes documentation describing scope, stack, and technical decisions.

A lightweight and pragmatic Dependency Injection container designed for JavaScript and TypeScript applications.
Focused on simplicity, explicitness, and ease of integration without unnecessary abstractions.

Repository: https://github.com/davidcromianski-dev/ant-di

• Dependency Injection container with explicit lifecycle control
• Designed for Node.js and TypeScript-first environments
• Minimal API surface with focus on readability and maintainability
• Suitable for small to medium-sized services and libraries

The project serves as both a production-ready utility and a study in software design principles such as inversion of control, separation of concerns, and modular architecture.

• Advance expertise in frontend development and user experience
• Contribute to large-scale, high-impact software
• Work with international teams and global products
• Maintain high engineering standards and long-term code quality

• GitHub: https://github.com/your-username
• LinkedIn: optional

This profile is continuously evolving as part of my professional development.