Bartosz Hamielec

Wrocław, Poland

CTO | Looking for new challenges
Bartosz's Skills
Product Management

Startup Experience

Founded 2+ startups

Age Group


Work Experience

Java Developer

Nokia Networks

March 2015 - December 2016

Java EE Developer, duties: developing, maintaining and refactoring network management system, following clean code rules during daily basic job, designing new functionalities in cooperation with other members.

Software Development Specialist

Nokia Networks

January 2017 - September 2017

Working as Software Engineer in analytics project, main duties: designing and implementing projects architecture eligible for Apache Spark and Zeppelin, writing and developing code in Scala, writing proof of concepts, designing new functionalities, support other team members.

Scala/Java Developer


September 2017 - December 2019

Scala/Java Developer, working on processing and analyzing huge amount of data in real time, duties: taking active role in creating system based on Apache Flink and microservices, designing and implementing pipelines for streaming data.

Java/Scala/Big Data developer


January 2020 - Today

Mainly working in Big Data area, main duties: create proof of concepts, for example: build data lake based on AWS infrastructure (Technologies: Apache Spark, AWS Redshift, RDS, S3 bucket, Scala), work on REST API search engine, aggregating data from multiple sources (Technologies: Scala, Akka)


February 2019 - May 2020

Web version of sneakers stock, list of bid and ask sneakers offers. Technologies: Node.js, React.js, MongoDB, Docker

CTO | Backend developer

Ada Plan

September 2018 - April 2019

Application for construction industry - price prediction based on plans designed in 3D using web browser. Technologies: React.js, MongoDB, Java, Spring Boot, Docker


Wrocław University of Technology

Bachelor of Science, Computer Science

2013 - 2017

Wrocław University of Technology

Master of Science, Computer Science

2017 - 2019