Bartosz Dąbrowski Email & Phone Number

Gdańsk, Pl

Gdańsk, Woj. Pomorskie, Polska

Gdańsk, Woj. Pomorskie, Polska

As a full-time engineer, I took on more leadership responsibilities and advanced the technical capabilities of the system:- Led Kubernetes Migration: Spearheaded the migration of the entire system to Kubernetes, including comprehensive testing, knowledge sharing, and the seamless deployment of new services without any downtime for clients.- Managing and improving data pipeline consuming over 2,000,000 events every day.- Deployed and configured Kubernetes Operators: Deployed operators for managing key systems like PostgreSQL, and MongoDB within Kubernetes, simplifying their management and scaling processes.- Optimized CI Pipeline: Improved CI process by optimizing dependency builds and parallelizing operations, which reduced deployment time by more than 75%.- System Management: Managed SQL Server, RabbitMQ, MongoDB, and PostgreSQL systems, ensuring high availability, performance, and security.- Introduced Autoscaling Mechanisms: Implemented autoscaling mechanisms across the entire system, which enhanced responsiveness during periods of increased traffic.- POC & Innovation: Conducted various Proof of Concepts (POCs) to explore and introduce new solutions to the project, driving continuous improvement.- Data Pipeline Refactor: Refactored the data processing pipeline, reducing its complexity from O(log n) to O(1), significantly boosting performance and efficiency.- Client Configuration Management System: Developed a client configuration management system that allows clients to manage their code fragments, which are automatically tested and deployed to production. This minimized the time required for their changes to go live and eliminated the need for human intervention, significantly accelerating time to market and enhancing clients' day-to-day operations.- System Environment Analysis: Conducted system environment analyses to determine hardware requirements for migrating from on-premises to Kubernetes, ensuring a smooth and efficient transition.

Gdańsk, Woj. Pomorskie, Polska

During this internship, I focused on building robust and scalable infrastructure and software solutions:- Developed IAM Mechanism for MongoDB: Created a comprehensive Infrastructure as Code (IaC) mechanism for managing access control and certificates for MongoDB, significantly enhancing the security and manageability of the database.- Feature Development in Python and Java: Designed and implemented features in Python (Flask, Airflow) and Java/Kotlin (Spring) based on direct client interactions. Each feature was thoroughly tested and deployed to production, ensuring a smooth and reliable rollout.- Optimized SQL Server Connection Management: Innovated a new approach to managing connection pools in Spring for SQL Server, which resulted in over a 50% improvement in dashboard response times and enabled horizontal query scaling.

Master Of Engineering - Meng, Computer Science

Profile: Distributed applications and internet systems Thesis: Comparative performance analysis of time series queries represented.

Bachelor Of Engineering - Be, Computer Science

Profile: Databases Thesis: Emotions detection in phone calls