As co-founder of PostgreSQL Ukraine, I am responsible for building the Ukrainian PostgreSQL community from scratch and implementing the best community-building practices in Ukraine. In this role, I am involved in the following:- Organizing group meetings (every two-three months, with an average of 200+ registered participants, mainly featuring foreign speakers)- Maintaining social media presence (300+ followers on Facebook and Telegram)- Organizing the PGDay Ukraine conference- Working with sponsors, venues, hiring requests, and volunteers- Providing technical support and guidance to community members

As the Associate Director of Big Data & Analytics and the Head of the Big Data Talent Center at SoftServe, I support the professional growth of over 400 Data Engineers. My role involves steering talent development initiatives, enhancing SoftServe's visibility in the Big Data community, nurturing our community of experts, and managing Data Engineers in the mobile reserve on various accelerators and volunteer projects. I'm proud to contribute to the growth of Big Data expertise at SoftServe.

As Big Data Competence Manager at SoftServe, I am responsible for leading and developing the organization's expertise in Big Data technologies. Our team is recognized for our expertise in Big Data, machine learning, AI, IoT, and cloud technologies by companies such as Amazon, Google, and Microsoft. In this role, I:- Hire and develop teams of talented engineers with expertise in Big Data technologies- Inspire, mentor, and evaluate engineering teams to ensure that they are staying up-to-date with the latest developments in the field- Collaborate with cross-functional peers and leaders to deliver big data projects and solutions- Co-lead the development of a strong employer brand for engineers globally- Oversee the planning, execution, and delivery of Big Data projects- Work closely with clients to understand their Big Data needs and develop solutions to meet those needs- Identify opportunities for innovation and continuous improvement within the organization's Big Data capabilitiesI am proud to be a part of the talented and dedicated team at SoftServe and believe that my skills and experience contribute to the organization's success.

As CTO of DataMatrix at EveryMatrix Ltd, I was responsible for leading a team of 25+ data engineers, data scientists, QAs, and DevOps professionals in building and developing 5 data streams:- A Data Lake, which stores raw messages for 7+ years and is accessible via SQL queries- A Data Warehouse, which is a column store with denormalized, nested structured data marts- Data Science initiatives, including recommendation systems, fraud detection, and client segmentation- A DataHub, which handles streaming processing, rule engine solutions, and integration with third parties such as CRMs, government authorities, and gamification platforms- Invoicing and advanced reporting, including ad-hoc reports, visualization, and cross-business unit reportsI am proud of the contributions I made to EveryMatrix Ltd and believe that my skills and experience helped to establish and maintain a data-informed culture on one of the biggest gambling platforms.

As CEO and founder of SQL.ua, I was responsible for building an online academy with a full learning path to cover market needs in data engineering. In this role, I:- United more than 35 speakers and data experts to create new data courses- Produced more than 15 new online courses to cover needed areas in the path from beginners to experts- Personally created three new courses ("Introduction to SQL", "PostgreSQL for Developers", and "PostgreSQL - Performance Tuning")- Attracted more than 700 participants to my courses

As head of Data CoE at Intellias, I was responsible for building processes and systems to combine 35 data experts from different projects, which helped to:- Participate in pre-sale activities and then bootstrap new projects- Conduct data governance audits for internal and external projects, including creating reports with findings, recommendations, and health status checks- Establish and maintain a knowledge model for data engineers, including qualification standards and evaluation criteria, and conducting technical interviews for candidates- Develop and maintain training programs and labs- Represent the company at external events- Contribute to Intellias marketing programs by publishing technical articles, blogs, and creating case studies based on the success stories of delivered projects

As a senior consultant in the development team for data warehousing and reporting at Bank BGŻ BNP Paribas S.A., I was responsible for a range of projects, including:- Migrating an acquired bank to an existing structure, which involved handling hundreds of entities and terabytes of data- Developing a dashboard with key performance indicators (KPIs) for top management- Developing and implementing a new export system for preferential credits

As head of software development and maintenance in the IT department, I was responsible for leading a team of developers and testers in the development and construction of new software systems. In this role, I acted as the technical lead and was responsible for:- Creating a quality control (QC) software development sector, including hiring employees and writing templates for documentation and testing- Introducing technologies such as SQL Server Integration Services, SQL Server Reporting Services, and SQL Server Analysis Services- Implementing an issue tracking system for project management and tasks within the department- Conducting code reviews and refactoring- Consulting on the integration and interaction of software systems used by the company- Planning and prioritizing tasks for programmers and testers- Organizing trainings for employees, including English courses and workshops on new technologies- Conducting daily meetings to discuss work progress and planning

As tech lead of software development and maintenance in the IT department at JSC "Idea Bank," I was responsible for a range of tasks, including:- Developing and constructing the new architecture of software systems, acting as the technical lead for these projects- Creating a quality control (QC) software development sector, including hiring employees and writing templates for documentation and testing- Introducing technologies such as SQL Server Integration Services, SQL Server Reporting Services, and SQL Server Analysis Services- Implementing an issue tracking system for project management and tasks within the department- Conducting code reviews and refactoring- Consulting on the integration and interaction of software systems used by the company- Planning and prioritizing tasks for programmers and testers- Organizing trainings for employees, including English courses and workshops on new technologies- Conducting daily meetings to discuss work progress and planning- Leading a team of 9 developers and testers- Successfully completing over five projects

As an expert of software development and maintenance in the IT department at JSC "Idea Bank," I was responsible for a range of tasks, including:- Analyzing the architecture of existing software systems and implementing changes according to specifications, as well as writing software documentation and fixing critical errors- Providing support and training on software architecture for new employees and systems at the bank- Conducting interviews with candidates for programmer positions- Developing and implementing new software systems using ASP.NET C#, DevExpress, and MSSQL- Configuring banking software, operations, and users in BS "Scrooge"- Organizing the work of the department responsible for developing new software systems- Introducing control version systems (SVN), creating wiki documentation, implementing bug tracking, conducting stress testing on software systems, and performing security checks on web applications- Supporting the internal SharePoint portal and setting up approval workflows using Nintex Workflow

As a .NET developer in the development software department of the information systems at PKO Leasing, I was responsible for a range of tasks, including:- Developing WCF services to enable effective communication between the service-oriented architecture (SOA)- Creating custom site pages, lists, views, and master pages using ASP (C#)- Developing over 20 reports using SSRS and SQL Server, including reports on to-do tasks, inventory, aging, pipelines, and performance- Designing and creating SSIS packages to extract, transform, and load data from mainframe files and an Oracle database- Working on the optimization of SQL Server performance

As an engineer in the support team of the core banking systems IT department at VSBank, I was responsible for a variety of tasks, including:- Administering the HR management system (CS:HRM)- Providing employee data for payroll processing using MEDoc- Generating reports on employee time and attendance using FastReport, BI, Oracle, and MSSQL- Developing a system for calculating incentive payments for bank employees using ASP.NET C# and Oracle- Building a system for uploading employee salary files- Creating a system for informing clients via SMS using PHP, Oracle, and an SMS gateway- Supporting the internal website using SharePoint and Microsoft InfoPath- Automating HR department tasks using tools such as a voting system and a forum for employees on the bank's internal portal- Implementing a bug-tracking system (Mantis)

As CTO and co-founder of dobro-ua, I was responsible for overseeing the development of a range of online and offline projects, including:- Developing a website for an online store that sold computer hardware and provided information for potential buyers- Building a marketplace platform for offline stores that connected consumers with local retailersCommunicating with clients and working with suppliers to ensure the smooth operation of the business- Setting up and maintaining network and computer equipment- Managing the company's Google Ads account and implementing SEO strategies to increase visibility and traffic

As CEO and owner of Klioba.com, I was responsible for a range of internet marketing and promotion activities, including:- Developing and managing websites for clients in the Lviv Region- Implementing SEO strategies to increase traffic and visibility for client websites- Running internet advertising campaigns on platforms such as Google Ads- Providing support and maintenance for client websites