Open to opportunities

Michal Kowalsi

@michalkowalsi

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Senior Full-Stack & AI developer with a passion for innovation.

Poland

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What I'm looking for

I am looking for a role in a dynamic company that values innovation and collaboration, where I can leverage my skills in full-stack development and AI to create impactful solutions.

I am a Senior Web and AI Developer with over 9 years of experience delivering impactful, scalable software solutions for enterprise and startup clients across the US, Canada, and Europe. My expertise lies in full-stack web development and machine learning, where I have successfully deployed AI-driven applications that enhance user engagement and streamline workflows.

Throughout my career, I have led the architecture and development of full-stack SaaS platforms, engineered NLP solutions, and integrated advanced AI technologies into educational tools. My commitment to engineering excellence and innovation has enabled me to build production-grade platforms that meet critical deadlines, even in remote-first environments.

I am actively seeking opportunities with forward-thinking companies that value collaboration and creativity. I thrive in dynamic settings where I can contribute to cutting-edge projects and drive meaningful change through technology.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer (FullStack & AI)

Current

Freelance

Apr 2020 - Present (5 years 3 months)

Led the architecture and development of full-stack SaaS platforms using React, Django, and PostgreSQL for medtech and edtech startups, enabling MVP launches within 3-4 months. Engineered NLP solutions using Hugging Face Transformers, spaCy, and FastAPI, cutting document processing time by 45% and improving accuracy in legal document parsing.

React Django PostgreSQL SpaCy fastAPI Docker Kubernetes Terraform GitHub Actions

FullStack Engineer

Allegro

May 2018 - Mar 2020 (1 year 10 months)

Developed AI-driven recommendation systems for Allegro’s marketplace, impacting 10M users. Built scalable Python and Node.js microservices deployed via Kubernetes on GCP.

Python Node Kubernetes GCP ML Ranking Models Prometheus Grafana Swagger

AI Research Assistant

National University of Singapore

Aug 2016 - May 2018 (1 year 9 months)

Supported NLP research in automated essay scoring and sentiment analysis projects. Built datasets and fine-tuned BERT-based models for text classification tasks.

NLP BERT PyTorch Chatbot Development Data Analysis Research

Frontend Developer

Brainly

Jul 2016 - Apr 2018 (1 year 9 months)

Migrated frontend from jQuery to React, resulting in 40% faster page load times. Contributed to the AI-based moderation system by integrating OpenCV and TensorFlow features.

jQuery React OpenCV TensorFlow Jest Cypress UI Components Agile

Education

Degrees, certifications, and relevant coursework

AGH University of Science and Technology

Bachelor of Science, Computer Science

Studied foundational computer science principles, including programming, algorithms, and software development. Developed strong technical skills through coursework and practical projects.