Location
PolandRate
$61
/ per hour
Years of experience
10+About
As a seasoned software engineer with a strong focus on big data and machine learning, I have honed my skills in a variety of programming languages including Scala, Java, Python, and Haskell. My expertise extends to platforms such as Linux and Windows, and I have significant experience with both relational and NoSQL databases like PostgreSQL, Cassandra, and Hadoop. My professional journey began as a Junior Java Developer at CoCoNet Polska, where I designed and implemented internet banking solutions. I then advanced to roles at Adpilot and Cloud Technologies, where I specialized in creating and enhancing high-performance Real Time Bidding (RTB) systems. At So1, I developed a system for smart retail promotions, further solidifying my skills in Scala, Java, and AWS. In my current role as a Senior Big Data Scala Engineer at GetInData, I design and create data pipelines using Data Vault architecture. I've developed a Spark library to generate Data Vault entities in Data Lake, significantly reducing production time. My work includes improving CDC ETL Data Pipelines with tools like Debezium and NiFi, and I have created Scala-based tools for monitoring and automatic fixing of these pipelines. Additionally, I have implemented data lineage with Atlas and facilitated incremental data replication between Hive warehouses. My educational background includes a Master's and Bachelor's degree in Computer Science from the University of Warsaw, where I was actively involved in activities such as the .Net group and Geek Club.Tech Stack
Big Data, C, C++, Cassandra, Data Engineering, Hadoop, Haskell, Java, Linux, Lua, PostgreSQL, Python, R, ScalaExperience
- Designing and creating data pipelines in Data Vault architecture.
- Developing a Spark library to generate Data Vault entities in Data Lake ,reducing production time from months to days.
- Designing, creating, and improving CDC ETL Data Pipelines using Debezium and NiFi.
- Creating a tool in Scala for monitoring, verification, and automatic fixing of CDC data pipelines.
- Refactoring NiFi data pipelines to event-based, enabling easier process management, monitoring, and auditing.
- Creating and improving high-performance Real Time Bidding (RTB) systems.
- Developing a system for smart retail promotions.
Employment history
Senior Big Data Scala & Engineer, GetInData
March 2022 - Present 2024
- Designing and creating data pipelines in Data Vault architecture
- Created a Spark library to generate Data Vault entities in Data Lake
- Reduced Data Pipeline production time from months to days by creating common library.
- Designing creating and improving CDC ETL Data Pipelines using Debezium and NiFi.
- Created tool in Scala for monitoring, verification and automatic fixing of CDC data pipelines.
- Refactored NiFi data pipelines to event based, which enabled easier process managment, monitoring and auditing.
- Enabling data lineage by adding Atlas in various pipelines.
- Created tool based on ReAir for incremental data replication between two Hive warehouses
Senior Software Engineer, So1
November 2020 - February 2022
- Developed a system to optimize and automate retail promotions using Scala, Java, and Python.
- Implemented and maintained data processing pipelines with Akka, Kafka, and MySQL.
- Leveraged AWS services such as S3 and Redshift for storage and data processing, and managed deployments with Jenkins and Ansible.
Senior Software Engineer, Cloud Technologies
January 2018 - October 2020
- reated and improved RTB systems using Scala, Java, and Python to ensure high performance and reliability.
- Worked with Redis, Cassandra, and Aerospike for real-time data processing and storage.
- Utilized Hadoop and Spark for big data processing and analytics, following BDD/TDD methodologies for development.
Software Engineer, Adpilot
February 2016 - January 2018
- Developed and optimized RTB systems using Scala, Java, and Python to enhance performance and scalability.
- Employed Redis and Cassandra for data storage and retrieval, ensuring efficient data management.
- Used Jenkins and Ansible for continuous integration and deployment, along with tools like SBT, Maven, and Git for build and version control.
Junior Java Developer, CoCoNet Polska
May 2015 - January 2016
- Developed banking software for corporate customers using J2EE, Spring, and Hibernate.
- Deployed and managed applications on Tomcat servers, ensuring smooth operation and performance.
- Utilized SVN for version control and Jira for project management, ensuring efficient tracking and collaboration.
Education history
University of Warsaw
2014 - 2016
Faculty of Mathematics, Informatics and Mechanics,
Masters’s Degree in Computer Science
Masters’s Degree in Computer Science
University of Warsaw
2011 - 2014
Faculty of Mathematics, Informatics and Mechanics,
Bachelor’s Degree in Computer Science
Bachelor’s Degree in Computer Science
I Kraszewski High School
2008 - 2011
extended mathematics, physics and computer science
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"Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us - we eventually signed over 19 engineers from DevsData. I'm extremely satisfied with this recruitment process."
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CEO of Orange Charger LLC,
Ex-Tesla Engineer,
Mentor at YCombinator
Tailored recruitment process, trusted market expertise.
“DevsData reached out to us, as we’ve been looking to grow our engineering team in Europe and Poland. Communicating efficiently and professionally, DevsData made a strong impression with their understanding of the recruitment challenges we were facing. They designed a tailored recruitment process for our needs. I was impressed with the technical depth of their approach.”
Karim Butt
Co-Founder & CTO at GlossGenius, Inc.
Outstanding vendor, 21 engineers hired.
“Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us.”
Ran Eyal
Senior Manager at
ZIM Integrated
Shipping Services Ltd.
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Partner & Executive VP of Verus,
Financial LLC, Investor,
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