Paweł Gąsiorowski
Verified Expert in Engineering
Mathematics Developer
Warsaw, Poland
Toptal member since January 25, 2021
Paweł is an experienced solution architect with broad technical and software development skills, able to solve the hardest problems thanks to his passion for mathematics. Every company he has worked for has experienced a significant change made by his work.
Portfolio
Experience
- Databases - 20 years
- Service-oriented Architecture (SOA) - 11 years
- UML - 11 years
- webMethods - 11 years
- Java - 10 years
- Mathematics - 7 years
- REST - 6 years
- Python 3 - 3 years
Preferred Environment
Jupyter Notebook, Bash, IntelliJ IDEA, MacOS
The most amazing...
...thing I have ever developed is a data science platform aiding scientist in big data analysis.
Work Experience
Board Member/IT Lead
Data Hunting
- Designed and implemented a data science platform supporting scientists in working with large data sets using their preferred technologies while maintaining data integrity.
- Developed multiple algorithms for predicting linear TV viewership.
- Developed an expert opinion explaining the impact of changing the weighting methodology of the AGB Nielsen panel on the decline in linear TV viewership.
IT Solution Architect and Developer
Lublin Diocese
- Designed architecture patterns for a solution with more than 30 microservices.
- Designed and implemented processes supporting the client's key services.
- Prepared a high and low-level design for microservices from user stories down to UML specifications.
Senior Consultant
CGI
- Developed an approach for migrating one of the world's biggest webMethods deployments.
- Estimated the cost of projects with budgets of over one million dollars.
- Prepared and negotiated the substantive scope of contracts.
IT Analyst
Getin Noble Bank
- Designed solutions for the company's biggest projects including PSD2, SCA, 3DS, and anti-fraud detection.
- Developed a software implementation of HSM symmetric encryption, including handling multiple key components.
- Diagnosed architecture performance bottlenecks using the analysis of the correlation between events and anomaly detection.
Senior Consultant/Developer
Ministry of Education
- Designed and developed an enterprise service bus integrating systems of the Ministry of National Education.
- Designed elements of the software delivery process, from artifacts and analysis structure to the automation of code generation from analytical artifacts.
- Designed and developed a monitoring solution for MuleESB.
Developer
PKO Bank Polski
- Developed solutions integrating multiple systems with the use of WebSphere Message Broker.
- Optimized CI/CD processes for facades of integrated systems.
- Helped with migrating the code repository from CVS to Git.
Senior Consultant/Team Leader
CGI
- Managed and led a team of 20+ developers and solution designers.
- Designed and implemented a solution breaking one of the biggest telco monoliths.
- Helped and guided junior developers to elevate from a junior to a senior level.
Project Manager
LOT Polish Airlines
- Managed a project implementing auxiliary services, which resulted in growth of income exceeding stakeholders expectations.
- Restored faith in the IT department in the eyes of the eCommerce department.
- Negotiated changes to the Amadeus booking software.
Experience
Data Science Platform
Education
Master's Degree in Computer Science
Warsaw University of Technology - Warsaw, Poland
Specialist Degree (Bachelor's Degree Equivalent) in Physics
University of Warsaw - Warsaw, Poland
Certifications
PRINCE2 Foundation
APM GROUP
Skills
Libraries/APIs
Luigi, Pandas, REST APIs, Flask-RESTful, Keras
Tools
Camunda BPM, Postman, Docker Compose, Microsoft Project, Kibana, Logstash, WebSphere Message Broker, IntelliJ IDEA
Paradigms
Service-oriented Architecture (SOA), REST, RESTful Development
Platforms
webMethods, Oracle, Docker, Jupyter Notebook, MacOS, Rancher, Mule ESB, RStudio, Amazon Web Services (AWS)
Languages
UML, Java, Java 8, Python 3, JavaScript, CSS, HTML, Bash, C++, SAS, ESQL, R, Python 2, Groovy
Frameworks
Spring Boot
Storage
Databases, PostgreSQL, Elasticsearch, MongoDB
Industry Expertise
Project Management
Other
Mathematics, Physics, Decision Support Systems (DSS), Knowledge Management, Enterprise Architecture, SOAP, Project Planning, Software Development Management, IT Project Management, Cost Estimation, Team Management, Image Recognition, Robotics, Electronics, Contract Negotiation, Beats, Cython, Machine Learning, Statistics
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