About me

Who am I? · 👨‍💻 🌈 Link to heading

Hi, my name is Jakub Błaszczyk (he/him), based in Warsaw, Poland.

What I do? · ☕ 👨‍💻 Link to heading

Professionally, I am a Data Engineer specializing in Scala and Spark. I adhere to the engineering mindset of designing, building, and testing systems to meet functional requirements within practical constraints. I primarily work with Scala and Spark, valuing Scala for its strong static typing and support for both functional and object-oriented programming.

What would I like to do? · 🔮 📝 🌴 Link to heading

I aim to work with Scala and Functional Programming. Beyond coding, I enjoy mentoring, writing documentation, and earning certifications, such as my Microsoft Azure Solution Architect Expert and Data Engineer Associate exams. Equally important is the team culture. I prioritize a diverse, inclusive, and supportive environment where honesty and an “ok to fail” attitude prevail. I would choose a great team over a specific tech stack any day.

How did I get where I am now? · ⚡ 🚀 🚊 Link to heading

I began my career as a full-stack developer in real estate before moving to JLL’s Data Governance team. There, I learned the importance of data quality and stakeholder management. After seven years at JLL, I moved to investment banking. I worked at Credit Suisse in Data Governance and later at UBS as a Scala Engineer, helping build a Next Generation Archiving solution.

What am I most proud of? · 🦚 🌌 🌈 🚀 Link to heading

In my professional life I am proud of:

  • ✅ Mastering functional programming concepts (thanks to Alvin Alexander and Daniel Ciocîrlan).
  • ✅ Working with supportive managers who helped me grow.
  • ✅ Volunteering in employee diversity networks at JLL, Credit Suisse, and UBS.
  • ✅ Earning Microsoft Azure Solution Architect and Data Engineer certifications.
  • ✅ The opportunity to learn something new every day.

Let’s talk! · 🦜 🙈 🙊 🙉 Link to heading

For recruiters: Link to heading

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