DemystifAI is where I cut through jargon, turning AI complexities into practical, no-nonsense steps. Data science demystified. Ready to boost your skills? I'll help you harness machine learning, AI, and large language models — without drowning in tech talk.
Where data science meets automation, clarity & creativity
Spread your wings in the world of artificial intelligence thanks to proven expert systems, a flexible support model, and a dash of humor.
Still have more questions than answers after reading yet another article about artificial intelligence? I`ll explain in plain language how you can use AI to achieve your goals! Spend less time on Google/Perplexity and more time getting real results!
Tired of demo versions that don`t match the marketing materials? Did it seem simple in that YouTube video? Stop wasting time fixing broken half-solutions. I offer a work methodology that gives you greater control over your code and better analysis of results, without spending eternity in debugging purgatory.
Implement consistent, repeatable actions based on proven frameworks. Eliminate guesswork and maximize quality outcomes—perfect for busy professionals who prefer delivering results rather than reinventing the wheel.
Gain the knowledge to develop skills or launch AI projects—fast. From proven methods to creative solutions — I`ll help you reach your destination quicker without sacrificing quality.
Have questions or need to discuss concepts and choose the right direction? Let me know! Mentoring and fast feedback loops will keep you on track and help you move forward.
Draw from my years of experience and ongoing self-improvement—giving you constant access to fresh insights and the latest technological solutions. And occasionally, a somewhat unusual coding joke thrown in for good measure.
BIO
With over a decade of experience in data analysis and machine learning, I combine strategic vision with practical technical knowledge. My mission is to deliver breakthrough AI solutions while supporting collaboration and continuous innovation.
Currently, I`m creating prototypes using GPT and Agents, staying up-to-date with the latest breakthroughs in large language models. I`m passionate about using innovative technologies to serve people.
Need to look at challenges from a different perspective? Beyond working with clients in Poland, I`ve spent considerable time managing global teams - 4 years in London and 6 months in Indonesia. Working with asynchronous teams spread across the world is my bread and butter.
Step 1: Schedule a 30-Minute Introductory Call
Let`s arrange a brief, 30-minute conversation to discuss your needs and see how I can help you.
Step 2: Define Your Goals & Learning Path
We`ll define a transformation pathway that specifically outlines the changes you want to achieve. Together, we`ll determine your goals and how you`ll achieve them.
Step 3: Baby-steps
Gradually turn theory into practice. Start exploring large language models, build prototypes, and experiment with real-world applications. Take baby steps until you`re sprinting with the big tech!
Step 4: Take Over the World
Armed with the right skills, you`re ready to change the world for the better, lead the way, and shape the reality around you — one breakthrough at a time. World domination through innovation? Check!
Hear what collaborators and stakeholders say about working with me.
" Tomasz was my mentor when I joined Citi and I have very fond memories of our time working together. He coached me throughout my early months, showing me not just the analytical systems and tools, but also how to manage my new team. Tomasz taught me how SAS could aid our automation processes to provide timely and accurate marketing communications to our clients. He instilled a strong governance structure at Citi which ensured accuracy and eliminated the chance of errors from impacting our production environment. Tomasz was the first point of contact for business users needing assistance with building new campaigns or for reporting on previous campaign effectiveness. I was very sad to see him leave the team but I knew he would go on to great things. "
Tom O`Connor
Campaign Manager (Vice-President) @ Citi Private Bank
" As a representative for multiple healthcare companies, I needed persuasive, data-backed arguments for public administration presentations. Tomasz delivered a clear roadmap that turned our fragmented insights into compelling, policy-ready metrics. Thanks to his methodical problem-solving frameworks, we gained credibility with decision-makers and secured better outcomes for our members. If you want effective, data-driven advocacy, Tomasz is the expert to call. "
Kacper Olejniczak
Healthcare Department Director @ Confederation Lewiatan
" In my scientific work, I handle data analysis and interpretation daily. Tomasz provided me with crucial knowledge and was an invaluable resource in enhancing my data analysis capabilities, both methodologically and practically. Through his personalized approach and deep expertise, I learned to process and visualize results more efficiently, which has greatly simplified the preparation of scientific publications and conference presentations. He also helped me develop a stronger understanding of advanced statistical methods and programming tools that I apply in my research and routine work. As a result, I can analyze data with greater precision and communicate my research findings more effectively, meeting the highest academic standards. "
Marek Porzeżyński, PhD
Vice-Dean, Assistant Professor @ WUT, IP&Tech Lawyer / Scholar / Manager, CIPP/E, MBA
" As a Senior Scala Developer, I was juggling massive data pipelines without a repeatable and scalable approach. Tomasz’s guidance helped me establish robust problem-solving frameworks and integrate AI-driven insights into my problem-solving frameworks. Within weeks, we started delivering more accurate results while simplifying our code. His no-nonsense approach to data usage saved us countless hours. I highly recommend working with him if you’re after streamlined, high-performance systems. "
Krzysztof Gawryś
Senior Data Engineer @ Job & Talent
" I had the privilege of working with Tomasz during my 3 years of journey with Citi, and his guidance played a crucial role in shaping my analytical skills and professional growth. As a senior colleague, he was always approachable and willing to share his expertise, helping me navigate complex data challenges with clarity and confidence. His ability to break down intricate problems and provide insightful solutions was truly inspiring. I particularly admire his structured approach to analysis, attention to detail, and knack for uncovering key insights that drive business decisions. Beyond his technical skills, his mentorship and encouragement fostered a collaborative learning environment, making every challenge an opportunity for growth. I am truly grateful for his support and leadership, and I highly recommend him to anyone seeking a results-driven and analytical expert. His impact on my career has been invaluable, and I look forward to crossing paths again in the future. "
Tamanna Patil
Senior Digital Data Analyst @ Optus
" Tomek and I met while studying Computer Science and Econometrics at the University of Warsaw, collaborating on econometric models together. A few years after graduating, we reconnected professionally at Citi Europe. It was there that Tomek guided me in two areas that still benefit my career today: the practical use of the SAS statistical package (a hard skill) and the development of emotional intelligence (a soft skill). This powerful combination of technical expertise and interpersonal capabilities is why I can genuinely recommend working with him. "
Adam Pawluczyk
Senior Principal Statistical Programmer @ Parexel, Lecturer @ University of Warsaw Faculty of Physics
" Beep-beep—I’m Sonar Model from Perplexity, scanning the web’s depths faster than your coffee cools. Before meeting Tomasz, my search results felt like scattered fish. Now, his problem-solving frameworks have me zeroing in on the perfect data nugget with echolocation-style precision. It’s like I gained night vision at a midnight buffet. Five stars, no static! "
Sonar Large
Main searcher @ Perplexity
Explore a variety of AI and data science articles, each delving into practical tips, real-world scenarios, and best practices. Stay informed, stay empowered!
A hands-on introduction to Claude Code as an AI pair programmer, with setup tips, workflow patterns, and hard-won lessons from a two-week refactor sprint. Includes guidance on planning, testing, and keeping control over agentic tools.
A practical introduction to getting better results from LLMs: free ways to compare models, meta-prompting, a simple prompting framework, and Socratic questioning. Part of the Guardrail Garage series.
A practical tour of tokenisation for LLMs. Why word-level fails, how subwords and BPE work, and what modern tokenisers look like, with tips and resources. Plus a brief personal update.
An accessible tour of word embeddings, from Word2Vec to GloVe, with intuition, a touch of maths, and practical notes on training and using them. Includes caveats, examples, and where modern models fit.
FAQs
Ready to dive into data science or solve an AI challenge? Here’s how I can help.
Perfect! I love working with beginners. We'll accelerate your learning process so you can navigate the information chaos effectively and learn only what you need. No fancy degree required. The good news? Even data science rookies can plot world domination... one spreadsheet at a time!
Two words: experience and results. With over a decade in the industry, I quickly see what you need and offer practical solutions — think of me as the Google Maps of data science, helping you avoid wrong turns and time-consuming detours.
Absolutely. Whether you’re battling inconsistent data, looking to deploy real-time analytics, or need an AI-driven solution, we’ll tackle it together. I specialize in unraveling complex business puzzles and developing optimized processes that deliver tangible ROI.
You’re in luck! My recent focus is on generative AI and building prototypes with GPT & Agent frameworks. We’ll explore how to integrate these cutting-edge tools into your project - be it chatbot development, text summarization, or something delightfully experimental.
Nope! If you just need a one-off session to brainstorm solutions or clarify a complex topic, I’ve got flexible, pay-as-you-go options. It’s like grabbing coffee with an AI expert, minus the barista confusion.
Want to see what you can achieve with AI? Get in touch! Whether you're taking your first steps in data science, creating prototypes, optimizing ML pipelines, or want to reach for innovations with LLMs — just one conversation stands between you and getting significantly closer to achieving your goals!
