06/06/2025 updated
100 % available
Full-Stack Developer & Mobile & AI & Cloud
Bielsko-Biała, Poland
Only remote
Java (Programming Language)JavaScriptAgile MethodologyArtificial IntelligenceAutomationBusiness To BusinessBusiness RequirementsSoftware as a ServiceCloud ComputingDatabasesContinuous IntegrationDevOpsE-CommerceEvent ManagementScalability
I’m an experienced software developer who builds both small-scale tools and complex, scalable systems - often enhanced with AI-driven automation.
I have completed projects such as a SaaS platform for the e-commerce industry, which increased conversion by 35%, and an MVP of a credit bureau management system that reduced operational costs by 50%.
I follow a T-shaped skill model - combining deep technical expertise (Java, Python, Kotlin, React, TypeScript, and AI tools) with a broad understanding of software systems. This helps me identify key business needs, choose the right technologies, and build impactful software.
I work on a B2B basis, and my collaboration model is as follows:
- Analysis and Strategy: I start with a thorough understanding of your business to choose the best technological solution.
- MVP Design: I create the first version of the product, which quickly validates key functions and adapts the solution to real business needs.
- Development and Testing: I implement the full solution flexibly and iteratively, ensuring its scalability with company growth.
- Implementation and Support: I deliver a ready product and offer continuous support, development, and optimization at every stage of the system's life cycle.
Clients value my technological versatility, market understanding, clear communication, and willingness to share knowledge through blogging and conference presentations.
Key Technologies:
- Frontend: React, TypeScript, JavaScript
- Backend: Python, Java, Kotlin, Spring Boot, REST API
- AI and Automation: PyTorch, OpenAI, Anthropic, Ollama, Zapier/n8n, custom solutions
- Cloud & DevOps: Google Cloud, Docker, Kubernetes, GitHub Actions, CI/CD
- Databases: MySQL, PostgreSQL, MongoDB, Redis
Selected Projects:
- Customer Support System Migration to Google Cloud – reduced workflow process time by 50% (from 14 to 6 minutes).
- Single Sign-On (SSO) System – scalable solution supporting millions of users (Spring Boot, Kubernetes, OpenShift).
- Electronic Elderly Care System – microservice architecture increasing user safety (Java, Spring Cloud, React).
- Cloud Storage Services (cs3mesh4eosc) – leading the technical team in an EU project dedicated to the Data Science community (Python, Go, Docker, Kubernetes).
- Credit Bureau Management System – comprehensive web and mobile application with advanced credit logic.
- ArtiMid - AI Graphics Generator – Development of an application allowing users to generate graphics based on textual descriptions (Python, TypeScript, PyTorch, Distributed Architecture)
- LandingBuddy - AI Website Builder – Creation of a platform enabling quick website creation without coding, featuring a "drag and drop" editor, integration with email marketing tools, and AI-assisted content generation. (Python, TypeScript, OpenAI, Anthropic)
What Sets Me Apart?
- I apply Agile and Lean principles to stay adaptive and deliver fast iterations.
- I use tools like Jira, Confluence, CI/CD, and monitoring to maximize efficiency
- I focus on proven tech - no experiments for experiment’s sake
- I bring proactive solutions and clear communication
- I share knowledge openly via blogs, conferences, and open-source contributions
I typically respond within 24 hours. I dedicate 20–30 hours per week per project and offer flexible hourly packages to suit your needs.
I have completed projects such as a SaaS platform for the e-commerce industry, which increased conversion by 35%, and an MVP of a credit bureau management system that reduced operational costs by 50%.
I follow a T-shaped skill model - combining deep technical expertise (Java, Python, Kotlin, React, TypeScript, and AI tools) with a broad understanding of software systems. This helps me identify key business needs, choose the right technologies, and build impactful software.
I work on a B2B basis, and my collaboration model is as follows:
- Analysis and Strategy: I start with a thorough understanding of your business to choose the best technological solution.
- MVP Design: I create the first version of the product, which quickly validates key functions and adapts the solution to real business needs.
- Development and Testing: I implement the full solution flexibly and iteratively, ensuring its scalability with company growth.
- Implementation and Support: I deliver a ready product and offer continuous support, development, and optimization at every stage of the system's life cycle.
Clients value my technological versatility, market understanding, clear communication, and willingness to share knowledge through blogging and conference presentations.
Key Technologies:
- Frontend: React, TypeScript, JavaScript
- Backend: Python, Java, Kotlin, Spring Boot, REST API
- AI and Automation: PyTorch, OpenAI, Anthropic, Ollama, Zapier/n8n, custom solutions
- Cloud & DevOps: Google Cloud, Docker, Kubernetes, GitHub Actions, CI/CD
- Databases: MySQL, PostgreSQL, MongoDB, Redis
Selected Projects:
- Customer Support System Migration to Google Cloud – reduced workflow process time by 50% (from 14 to 6 minutes).
- Single Sign-On (SSO) System – scalable solution supporting millions of users (Spring Boot, Kubernetes, OpenShift).
- Electronic Elderly Care System – microservice architecture increasing user safety (Java, Spring Cloud, React).
- Cloud Storage Services (cs3mesh4eosc) – leading the technical team in an EU project dedicated to the Data Science community (Python, Go, Docker, Kubernetes).
- Credit Bureau Management System – comprehensive web and mobile application with advanced credit logic.
- ArtiMid - AI Graphics Generator – Development of an application allowing users to generate graphics based on textual descriptions (Python, TypeScript, PyTorch, Distributed Architecture)
- LandingBuddy - AI Website Builder – Creation of a platform enabling quick website creation without coding, featuring a "drag and drop" editor, integration with email marketing tools, and AI-assisted content generation. (Python, TypeScript, OpenAI, Anthropic)
What Sets Me Apart?
- I apply Agile and Lean principles to stay adaptive and deliver fast iterations.
- I use tools like Jira, Confluence, CI/CD, and monitoring to maximize efficiency
- I focus on proven tech - no experiments for experiment’s sake
- I bring proactive solutions and clear communication
- I share knowledge openly via blogs, conferences, and open-source contributions
I typically respond within 24 hours. I dedicate 20–30 hours per week per project and offer flexible hourly packages to suit your needs.
Experience
Professional experience5 - 10 years
Freelancer since2025
Languages
EnglishGoodPolishNative speaker
Project history
Tasks and Responsibilities During the Project
While building LandingBuddy, I was responsible for the entire process – from idea to production launch. The goal was simple: help anyone launch a product, campaign, or lead magnet in under 15 minutes – no coding, no waiting for a developer. Here's how I approached and executed the project:
1. Product Strategy
I started with defining a clear product strategy. That included identifying the core user groups – course creators, freelancers, startups, agencies – and crafting a value proposition focused on speed, simplicity, and AI support. I set the scope for a functional MVP that solves a real problem: turning ideas into working pages, fast.
2. UX/UI Design
I personally designed the user interface to be clean, intuitive, and conversion-optimized. The main goal was to make it easy to create a professional-looking page using ready-made sections – all directly in the browser, with no external tools required.
3. Backend Development (Python, FastAPI)
I built the backend using Python and FastAPI, focusing on performance, scalability, and security. The architecture supports dynamic content generation and seamless integration with AI services and deployment infrastructure.
4. Frontend Development (TypeScript)
The frontend was developed in TypeScript using modern, component-based UI libraries. I ensured the editor and page templates are responsive, accessible, and easy to use across devices – from desktop to mobile.
5. Prompt Engineering & AI Integration
To power AI-generated content, I integrated APIs from OpenAI and Anthropic and created custom prompt workflows. The system can generate landing page copy in real-time based on minimal input – enabling users to go from blank page to fully written content in seconds.
6. Infrastructure and Hosting
I designed a custom infrastructure for reliable, secure, and fast hosting – no setup required from the user. The app includes automatic deployment, monitoring, and backups. Everything works out-of-the-box, so users can focus on their content, not the tech stack.
LandingBuddy was a solo effort where I handled everything end-to-end: product vision, design, coding, AI integration, infrastructure – all crafted to provide a fast, empowering experience for people who want to launch something now, not next quarter.
Want to see how fast your idea can go live? Just reach out – I’ll show you in real time.
While building LandingBuddy, I was responsible for the entire process – from idea to production launch. The goal was simple: help anyone launch a product, campaign, or lead magnet in under 15 minutes – no coding, no waiting for a developer. Here's how I approached and executed the project:
1. Product Strategy
I started with defining a clear product strategy. That included identifying the core user groups – course creators, freelancers, startups, agencies – and crafting a value proposition focused on speed, simplicity, and AI support. I set the scope for a functional MVP that solves a real problem: turning ideas into working pages, fast.
2. UX/UI Design
I personally designed the user interface to be clean, intuitive, and conversion-optimized. The main goal was to make it easy to create a professional-looking page using ready-made sections – all directly in the browser, with no external tools required.
3. Backend Development (Python, FastAPI)
I built the backend using Python and FastAPI, focusing on performance, scalability, and security. The architecture supports dynamic content generation and seamless integration with AI services and deployment infrastructure.
4. Frontend Development (TypeScript)
The frontend was developed in TypeScript using modern, component-based UI libraries. I ensured the editor and page templates are responsive, accessible, and easy to use across devices – from desktop to mobile.
5. Prompt Engineering & AI Integration
To power AI-generated content, I integrated APIs from OpenAI and Anthropic and created custom prompt workflows. The system can generate landing page copy in real-time based on minimal input – enabling users to go from blank page to fully written content in seconds.
6. Infrastructure and Hosting
I designed a custom infrastructure for reliable, secure, and fast hosting – no setup required from the user. The app includes automatic deployment, monitoring, and backups. Everything works out-of-the-box, so users can focus on their content, not the tech stack.
LandingBuddy was a solo effort where I handled everything end-to-end: product vision, design, coding, AI integration, infrastructure – all crafted to provide a fast, empowering experience for people who want to launch something now, not next quarter.
Want to see how fast your idea can go live? Just reach out – I’ll show you in real time.