Grzegorz Kaczor
Verified Expert in Engineering
DevOps Engineer and Software Developer
Gdańsk, Poland
Toptal member since March 2, 2023
Grzegorz has more than 15 years of experience in IT. He predominantly worked as a developer, but for the last six years, he has focused chiefly on AWS Cloud in architecture, DevOps, and DevSecOps. His main areas of expertise are monitoring with centralized logging and security using preventive and detective controls: His centralized logging solution was featured in the AWS Cloud Operations & Migrations Blog.
Portfolio
Experience
Availability
Preferred Environment
MacBook, Python 3, Amazon Web Services (AWS)
The most amazing...
...project I've created is a centralized logging solution that collects logs from multiple data sources, consolidates data, and presents it on a central dashboard.
Work Experience
AWS Architect | DevOps
Hapag-Lloyd
- Improved a security posture, including preventive controls for automatic compliance checks as a part of the pipeline (infrastructure and app code) and detective controls integrated via Microsoft Teams, enabling responsible teams to respond faster.
- Improved visibility with centralized logging by collecting data from multiple data sources, consolidating, and presenting it on a central dashboard in Elasticsearch. Configured the Elasticsearch cluster for resiliency and fine-grained access.
- Managed a multi-account, multi-application, and serverless environment with cross-account deployment, resource sharing, and virtual private cloud (VPC) networking using event-driven automation in Amazon EventBridge.
Architect
Sii
- Developed a B2B platform for a Swedish retailer. The project was defined as infrastructure as code (IaC) using AWS CloudFormation, and it leveraged a number of services, including AWS Lambda, API Gateway, Amazon DynamoDB, and Amazon S3.
- Developed an eCommerce platform for an athletic retailer. I implemented a containerized architecture using Amazon ECS and Amazon EC2. I automated infrastructure fully with AWS CodeBuild/AWS CodePipeline (blue-green deployment.), custom CloudWatch metrics, and alarms.
- Oversaw a group of five developers, driving the improvement of system architecture and facilitating communication with clients.
Experience
Centralized Logging Solution
https://aws.amazon.com/blogs/mt/how-hapag-lloyd-established-observability-for-serverless-multi-account-workloads/Developers, system administrators, and analysts can access the dashboard to view logs and quickly identify issues or trends. The solution can help organizations rapidly troubleshoot problems, identify potential security threats, and gain insights into the application and system performance.
Centralized Security Solution
By collecting security findings from multiple AWS accounts, the solution provides a comprehensive view of security issues across the organization. The automation aspect of the project ensures that security findings are consistently and accurately collected, eliminating the potential for human error.
Services used: Elasticsearch, AWS Security Hub, Amazon CloudWatch, Amazon Event Bridge, AWS Lambda, AWS KMS, Amazon S3, and AWS Identity and Access Management (IAM).
Certifications
AWS Certified Security – Specialty
AWS
AWS Certified SysOps Administrator
AWS
AWS Certified Developer – Associate Certification
AWS
AWS Certified Solutions Architect
AWS
Skills
Tools
AWS IAM, AWS Key Management Service (KMS), AWS CloudFormation, Amazon CloudWatch, Amazon SageMaker
Languages
Python 3, JavaScript
Platforms
Amazon Web Services (AWS), AWS Lambda, Amazon EC2
Storage
Amazon DynamoDB, Amazon S3 (AWS S3), Database Security, Elasticsearch
Paradigms
DevOps, DevSecOps
Other
Cloud Security, Monitoring, Serverless, Infrastructure as Code (IaC), Amazon API Gateway, Cloud, AWS DevOps, AWS, AWS Certified Solution Architect, AWS Cloud Architecture, Networking, Cloud Migration, AWS Certified SysOps Administrator, CI/CD Pipelines, APIs, Amazon EventBridge, AWS Cloud Security
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