Team

“The only way to do great work is to love what you do.” – Steve Jobs

Maciej Migacz

CEO

Semantive’s head. Manager, software engineer, and trainer. Has a long experience track with big data and data science projects. Multidisciplinary mind who loves to learn how the world around him works. Holds an MSc in Data Communications and Telecommunications Management from Warsaw University of Technology. Happy father of two children. He likes to spend his free time on a road bike or with a book that can teach him something about history or cognitive science.

Marek Lewandowski

CTO

Has background rooted in distributed systems, big data and data science. He is a pragmatic and open-minded CTO with experience delivering big data solutions for customers in retail, mining, real estate, healthcare, and insurance. Marek is an AWS Associate-level Certified Solutions Architect and holds an MSc in Computer Science from Warsaw University of Technology. In his spare time besides developing his technical and leadership skills, Marek likes to learn various cooking techniques and some say he makes great spaghetti carbonara.

Amadeusz Kosik

Big Data Team Lead

He is a Big Data consultant specialized in creating scalable solutions for stream data processing and applying machine learning in real-world problems. His area of expertise includes both cloud solutions (AWS Cloud) and on-premise appliances (Apache Spark, Apache Cassandra, Tensorflow), which is confirmed by certificates (AWS SAA, Certified Spark Developer). He is also a trainer for Spark and Cassandra. Outside the work, he is an amateur bass player.

Mateusz Gawino

Big Data Team Lead

Has a background in developing big data systems connected with machine learning solutions. He is interested in algorithms, data science and quantum mechanics. Mateusz is an AWS Associate-level Certified Solutions Architect and holds an MSc in Computer Science from Warsaw University. He also likes any kind of sport and actively practices windsurfing and snowboarding.

Grzegorz Olechwierowicz

Big Data Team Lead

Greg is a software engineer who specializes in building highly scalable, fault-tolerant and distributed systems. His goal is to have an ultimate T shaped skillset, with outstanding engineering and great management skills. He holds a Bachelor's degree from Warsaw University of Technology in Computer Science. Personally, he loves swimming and hacking open source libraries.

Michał Bemowski

Software Development Team Lead

Full stack developer focused on the user interface. Specializes in AngularJS, TypeScript and Scala. A programmer since primary school, passionate about cleverly written, clean code. Warsaw University of Technology graduate with a Master degree in Computer Science. Interested in UX concepts and application security. Digital photography enthusiast, retro film cameras collector and user.

Patryk Kaszuba

DevOps Engineer

He is a DevOps engineer with quite a decent experience in programming and an AWS Associate-level Certified Solutions Architect. Enthusiast of the GNU/Linux operating systems (especially Debian), command line tools and open-source software. He was studying information technology at the Warsaw University of Technology. In a free time, Patryk plays chess and trains boxing.

Anna Stępień

Big Data Engineer

Anna holds an MSc in Computer Science from Warsaw University of Technology. She is a certified Apache Spark developer as well as an AWS Associate-level Certified Solutions Architect and passed an AWS Big Data Specialty. She has an experience in designing and developing big data solutions and highly-scalable fault-tolerant systems. She has a particular interest in machine learning, data science, and cloud computing. After hours Anna collects vinyl records, plays bass guitar and reads sci-fi books.

Filip Piątkowski

Big Data Engineer

Has a background in designing scalable and cost-efficient big data solutions, often combined with solving challenging data science problems. Filip is an AWS Associate-level Certified Solutions Architect, AWS Big Data Specialty certified and holds a BSc in Automatics and Robotics from Warsaw University of Technology. In his spare time, he likes to exercise his creative side through photography.

Piotr Skoroszewski

Big Data Engineer

Has experience in design & managing Big Data processing system. Piotr is a programmer with good knowledge of UNIX system and Python & C++ backend. Big Data enthusiast. He is doing his MSc in Computer Science from the University of Warsaw with specialization in Artificial Intelligence and Databases. His hobby is mountain biking.

Stanisław Bieniecki

Big Data Engineer

Has experience in developing backend of web applications. Very enthusiastic to use bleeding edge technologies, even if they still bleeding. Very familiar with cloud computing and email communication technologies. He is doing his MSc in Computer Science from the University of Warsaw. He wants to be agile like Python (which is his favorite language), so in his spare time, he learns a few latin dances.

Wojciech Rybakiewicz

Software Developer

Has experience in developing web applications with JVM languages for backend and Angular for the frontend. Functional programming paradigm and Scala enthusiast. On his way to get the Bachelor of Engineering degree in Computer Science at the Military University of Technology. Has experience in developing web applications with JVM languages for backend and Angular for the frontend. In his free time, he goes for long cycling rides.

Przemysław Mogilnicki

Software Developer

Has experience in developing both frontend and backend solutions. For the former, he specializes in ReactJS, for the latter he chooses Python. Przemysław is an AWS Associate-level Certified Solutions Architect and has experience in implementing big data solutions. He holds an MSc degree in Computer Science and holds a BSc in Automatics and Robotics from Warsaw University of Technology. In his free time, he enjoys reading books.

Jan Antoniak

Software Developer

Has experience in developing modern web applications with Scala and TypeScript.
Jan is functional programming and data science enthusiast. Holds a BSc degree in Computer Science Engineering from Warsaw University of Technology. He is on the way to get the Master of Engineering degree in Computer Science at Warsaw University of Technology. He loves playing board games and actively spending holidays in the mountains.

Jakub Bartczuk

Senior Data Scientist

In Semantive he does Machine Learning/Data Science, which were his hobbies for a past couple of years. These interdisciplinary fields combine interesting parts of mathematics (he studied math) and programming (previously he worked as a developer). He especially enjoys using transfer learning with deep learning models because of the breadth of problems it is able to solve. Other than that he likes craft beer, riding his bike, science fiction and satyrical cartoons.

Marcel Młyńczak

Senior Data Scientist

Ph.D. in Biomedical Engineering from Warsaw University of Technology. Experienced in Machine Learning, Deep Learning, Natural Language Processing, Signal Processing and Time Series Modeling and Forecasting. After work, he devotes time to his daughter foremost, along with interesting books with good coffee. He likes snooker, ski jumping and cycling; only the last in practice.

Izabela Plucińska

Software Developer

Izabela is full stack developer who has experience in the backend using Scala and frontend using AngularJS and TypeScript. She has BSc in Electronics from Warsaw University of Technology and is doing her MSc in Electronics and Computer Science in Medicine. She is a creative person who learns to play piano and sing. Izabela also loves to draw.

Maciej Bany

Software Developer

He is on the way to get the Bachelor of Engineering degree in Automatics and Robotics at Warsaw University of Technology. He has experience in web developing applications using Scala for backend and AngularJs with TypeScript for the frontend. Outside of work, he is interested in playing musical instruments like saxophone and harmonica.

Maciej Ruszczyk

Software Developer

Programmer with experience in developing modern web applications. Specializes in creating web applications using Scala for backend and typescript for the frontend. Maciej is enthusiast of code written in functional way. He is on the way to get Master's degree in Computer Science at Warsaw University of Technology. He likes to spend free time playing classic computer games. From time to time he plays football, swim or climbs the walls.

Paulina Wrótny

Office Manager

She graduated in management and marketing studies. Has many years of experience in managing sales, customer care and back office teams as well as the office. Mainly she worked in operational positions. She successfully ran projects for startups and corporates companies from Poland and abroad. She worked in various industries. She is the open-minded, empathic and multitasking person. In Semantive she is responsible for office issues, hr and marketing. She spends her free moments on cooperating with WWF organization and sports: windsurfing and sailing in summer and skiing or ice boats riding in winter. These longer, on travelling around the world.

Marcin Sucharski

Big Data Engineer

Software engineer with a background ranging from writing web applications using Scala and AngularJS to designing and implementing highly scalable, distributed systems on top of Amazon Web Services. AWS Associate-level Certified Solutions Architect and Certified Apache Spark Developer. Enthusiast of high-performance code and JVM platform. On his way toward BSc in Computer Science from Warsaw University of Technology. Beginning his journey as a trainer. In his free time configures Gentoo and compiles Linux kernel.