available for work

Implementation,integration,optimization.

Node.jsNestJSNext.jsWordPress

Self-taught programmer passionate about cybersecurity, especially in web application security. Always ready to take on new challenges - the more difficult, the better.

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About me

Year of experience

Projects

1300+

Commits

English

I build web applications end to end - from development to deployment. I work with React and Next.js on the frontend, Node.js and databases on the backend, and focus on clean code, performance, and well-implemented user experience. I also have experience with WordPress and DevOps fundamentals, which allows me to understand and manage the full development-to-production workflow.

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Experience

Career path - from full-stack to architecture and collaboration in product teams.

JSON Crew

Nov 2025 – Apr 2026

Web Developer

Delivered 6 projects and completed 7 migrations (including environments and stack updates) while building CMS-based web applications.
Proposed and implemented AI-driven workflow improvements: process design and delivery, a comprehensive work environment (including Cursor, MCP), and training for the team.
I independently designed and implemented the integration of an e-commerce platform with the GoPOS system — from requirements analysis to deployment and ongoing supervision. The integration delivers full synchronization of operational data and ensures stable, reliable data exchange between the systems.
I built frontend components and UI logic (state and behavior) alongside API endpoints and backend logic for application features.
Integrated external APIs and services into existing product functionality.
Maintained production deployments: fixes, incident handling, and changes rolled out after client approval.
Effective teamwork—clear communication, responsiveness to feedback (including code reviews), and refining requirements with developers and web designers.

References available on request.

JSON Crew

Aug 2025 – Nov 2025

Web Developer Intern

Developed application features based on provided requirements and internal guidelines.
Implemented user interfaces according to prepared design specifications and visual guidelines.
Maintained code quality by following established standards and improving existing implementations.
Collaborated with more experienced team members and designers to clarify requirements and implementation details.
Applied feedback from code reviews to improve functionality and readability of the codebase.
Assisted in identifying and fixing bugs during development and testing.

Skills

Engineering competencies I bring to projects, and the tech stack—tools and frameworks I use in day-to-day work.

Competencies

01Modeling data structures and managing their evolution without downtime or the risk of data loss.
02Writing code with an emphasis on readability, design patterns, and minimizing technical debt.
03Designing a modular architecture that enables independent development and testing of individual system components.
04Developing backend systems and APIs that scale with product growth and are easy to maintain.
05Building pipelines that automate integration, testing, and deployment - from commit to production.
06Utilizing AI-based solutions to automate work and accelerate processes while controlling costs and quality.

Tech stack & tools

WebDev

TailwindCSS
React.js
Wordpress
Next.js
Node.js

DevOps

SQL/MySQL
Jenkins
NGINX
LINUX
Docker

AI & Autom.

n8n automations
AI Agents
MCP

Security

KALI LINUX
Metasploit
Hashicorp Vault
Wireshark
OWASP ZAP
Burp suite

Training & certifications

I complement courses and certificates with hands-on project work - from React and Node to security and databases. What matters most to me is connecting knowledge with real deployments.

AI

2026 · Anthropic Education

Model Context Protocol: Advanced Topics

2026 · Anthropic Education

Claude Code in action

2026 · Anthropic Education

Introduction to Model Context Protocol

Security

2026 · SECURITUM

Sekurak Academy 2025 Semester II

2025 · Securitum.pl

Websecurity Master from Sekurak

2024 · SECURITUM

OSINT TOOLKIT

2024 · Niebezpiecznik.pl

Atakowanie i ochrona webaplikacji

2024 · SECURITUM

Uczestnictwo w MSHP 2024

SEO

2023 · INFEO Marta Gryszko

Kurs pozycjonowania dla średnio zaawansowanych

Projects

Click a card - it expands into a full-screen project view over a dimmed page: goal, assumptions, gallery, and summary.

AI Provider Gateway

Nestjs

A NestJS backend gateway for apps and IDEs. Clients call the native API or OpenAI/Anthropic facades, while routing to Anthropic, Gemini, OpenAI or compatible backends is driven by YAML model aliases.

Unified Agent Context System (MCP)

Node.js

Unified Agent Context System is a TypeScript/Node MCP server: it registers tools under configurable namespaces, supports streamable HTTP and stdio transports, and serves content (e.g. profile, projects) from files with path-safety. It demonstrates a layered MCP implementation suitable for deployment (e.g. containers).

Web Home Budget Manager

React.js

Web app that allow manage and control user's house budget.

My portfolio + CMS

React.js

My first project in React.js and at the same time personal website.

Polish Salary Calculator

HTML

Polish Salary Web Calculator. Fullstack project in Node.js as a backend/API and Vanilla JS, HTML, CSS.

Contact

Have a question or want to discuss a project? Write to me - I will reply within 24 hours. I am happy to answer questions about collaboration, estimates, or technical details. You can use the form below or write directly by email or LinkedIn.