Tomáš Polák Email and Phone Number

- Led the architecture and implementation of a scalable software solution in Python, React, Scala and Spark on AWS, enhancing performance and scalability.- Co-managed a cross-functional team of 12 developers, optimizing development processes and ensuring smooth deployment across Kubernetes and AWS Fargate.- Advocated for the integration of best practices and high standards of software quality to business stakeholders.

- Optimized and redesigned the internal ETL platform, transitioning from AWS EMR to AWS ECS Fargate, achieving a 70% reduction in operational costs.- Developed multiple Apache Spark services on AWS Fargate for data cleansing and transformations, and implemented Scala microservices for scheduling and orchestration of the mentioned services in Kubernetes.- Created and maintained a high-performance microservice using Python, Scala, and Spark for data acquisition (mostly web scraping) and… Show more - Optimized and redesigned the internal ETL platform, transitioning from AWS EMR to AWS ECS Fargate, achieving a 70% reduction in operational costs.- Developed multiple Apache Spark services on AWS Fargate for data cleansing and transformations, and implemented Scala microservices for scheduling and orchestration of the mentioned services in Kubernetes.- Created and maintained a high-performance microservice using Python, Scala, and Spark for data acquisition (mostly web scraping) and transformation, supporting various departmental needs and ensuring reliable deployment in Kubernetes. Show less

Worked at O2's AI Centre (dataclair.ai):- Developed data processing/ETL pipelines using Python, SQL, Scala and corresponding Spark API's- Participated on migration of former on-premise big data platform to Azure Cloud- Worked on big data platform architecture & development in Azure Cloud- Closely cooperated with multiple data science teams as technical point-of-contact during project development phase

• Test automation using Python and corresponding frameworks.• Developed automated test suites, and implemented them to Jenkins & Teamcity environments.• Performed design reviews for continuous improvement in meeting product goals and needs.

• Testing network communication systems by following IREG testing methodologies.• Troubleshooting switching issues and evaluation SS7 messages when in roaming.• Handled technical queries and developed solutions to resolve issues with international partners.