Apr 2024 – Oct 2025 · 1 yr 6 mos

• Managed the Data Platform department consisting of 3 product domains, providing an internal big data and AI platform ecosystem encompassing data storage, processing, and analytics to enable business decisions and support data-based applications and products. Led the strategic development and evolution of the company’s cloud-based data platform architecture to enhance scalability, usability, and automation.
• Acted as the single-threaded owner of the data platform ecosystem, cooperating with various stakeholders and leaders from technology and business (including C-level). Oversaw the budget of the data public cloud infrastructure, including planning, forecasting, cost management, and optimization, and drove continuous improvement across engineering and product teams.

Jan 2021 – Apr 2024 · 3 yrs 3 mos

• Managed the Data Platform department consisting of 10 teams and over 70 specialists, providing an internal big data platform ecosystem for data storage, processing, and analytics to enable business decisions and data-based product development.
• Initiated and led a complex, cross-area transformation by migrating the Hadoop-based data platform to a newly designed cloud architecture. Developed the migration plan, supervised the transition of several dozen petabytes of data and thousands of workflows, and coordinated work across more than a hundred internal teams. Completed the migration in 2023 as planned, enabling faster product development and AI initiatives. Acted as the single-threaded owner of the program, collaborating with senior technology and business leaders and managing the data infrastructure budget, including planning, forecasting, and cost optimization.

Jan 2016 – Dec 2020 · 4 yrs 11 mos

• Leading 4 teams comprising of over 20 engineers dedicated to developing internal backend technical solutions to empower and support other product teams in building online applications. This included systems such as an internal message broker for microservices architecture, central logging system, image hosting system for various business platforms. Additionally, I led the delivery of a robust big data ecosystem based on Hadoop, providing tooling and technical solutions for data analysis and data processing to enhance our company's data based products.

Jan 2012 – Dec 2015 · 3 yrs 11 mos

• Leading a team of system engineers and software engineers focused on providing backend server infrastructure and technical solutions to host the company's online platforms. My primary goal was to deliver highly performant, stable, and highly available systems architecture crucial for our online platforms. Additionally, we provided essential support for our development teams, facilitating smooth application building and deployment processes.

May 2008 – Dec 2011 · 3 yrs 7 mos

• Responsible for designing high-availability systems architecture for business platforms, ensuring high SLAs were met. I oversaw the ongoing maintenance, tuning, scaling, automation and performance optimization of UNIX systems, RDBMSs, NoSQLs and network services. The role involved heavy troubleshooting and problem-solving, providing crucial support to development teams to maintain seamless operations.

May 2007 – May 2008 · 1 yr

• Providing and optimizing high performance computing clusters (HPC) for seismic data computing. Developed a reservation/queue system for cluster usage management. Additionally, I administered mission-critical UNIX based clusters at HQ data centers and remotely managed smaller data centers worldwide. I also supported technical staff in optimizing their tasks for efficiency.

Sep 2004 – Apr 2007 · 2 yrs 7 mos · Poland

• I maintained stable infrastructure and server environments (web, mail, file storage Linux servers) for a printing house while developing applications to streamline printing and logistics processes. Notably, I led a project where I designed the process and built a system for a nationwide logistics operation, distributing exam documents to all schools simultaneously.

Jan 1999 – Apr 2004 · 5 yrs 3 mos

• Responsible for a stable linux server environment with mail and web applications services for a hosting company.