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Andrii G.

Andrii G.

Ukraine

Web Programming · Databases & SQL

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Results-driven developer with 10+ years in software engineering and 4+ years focused on building scalable, high-availability SaaS services with Ruby on Rails. Delivered mission-critical financial automation features while participating in platform memory and performance optimizations to improve stability for large-scale accounting and BI systems. Strong skills in Ruby/Rails, REST APIs, Sidekiq, RSpec, PostgreSQL/Oracle, Docker, Kubernetes, and JavaScript; experienced in remote collaboration and in delivering reliable, testable systems.
Stanislav Ihnatchenko

Stanislav Ihnatchenko

Ukraine

Databases & SQL · Data Processing

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Development of OLAP reporting in Excel based on PQ and Power Pivot
86
Development of OLAP reporting in Excel based on PQ and Power Pivot
Databases & SQL
An ETL process for automatic loading, cleaning, and merging of data from multiple Excel files has been implemented using M language. A data model has been built using Power Pivot, measures and KPIs have been created in DAX, and interactive pivot…
Automation of secondary sales reporting in QlikView (additional)
49
Automation of secondary sales reporting in QlikView (additional)
Databases & SQL
Additionally, LFL analysis (Life-for-Life) has been implemented with the ability to compare indicators between periods, years, and months. A flexible data matching system has been set up for accurate comparison of sales dynamics, performance…
Automation of secondary sales reporting in QlikView
55
Automation of secondary sales reporting in QlikView
Databases & SQL
**Automation of Secondary Sales Reporting in QlikView** Development of a comprehensive reporting system for analyzing secondary sales by contractors. Automatic loading and merging of data from the company's 1C database and files received from…
David Plahotnyuk

David Plahotnyuk

Ukraine

Python · Databases & SQL

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Hi! My name is David, and I am a graduate with a degree in Computer Science. My primary programming language is Python. I have experience developing scripts, automating repetitive tasks, analyzing data, and building small applications. I am constantly improving my skills, learning new technologies, and taking on new challenges. ✅ What I can do: Develop Python applications and scripts. Automate routine tasks (file processing, web scraping, data processing). Assist with academic and educational programming projects. Debug, optimize, and fix existing Python code. Work with databases (SQL,…