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Vladislav Kiziuk

Available to hire

I am a Ruby Software Engineer with 5 years of experience developing, optimizing, and maintaining web applications. I have a strong background in full-stack development, database optimization, and process automation.

About

I am a Ruby Software Engineer with 5 years of experience developing, optimizing, and maintaining web applications. I have a strong background in full-stack development, database optimization, and process automation. Skilled in Ruby on Rails, React, Hotwire, and JavaScript, I build scalable APIs and deliver monitoring solutions for enterprise clients.

I am adept at improving workflows, mentoring team members, and delivering measurable business value. I have experience working in production environments and collaborating with cross-functional teams to enhance performance and data quality.

  • 6 years' experience
  • Joined August 2025

Languages

  • EnglishIntermediate
  • PolishIntermediate
  • RussianFluent

Industry experience

  • Software & Internet
  • Retail
  • Professional Services

More experts in Gdańsk, Poland

Work experience

Ruby Software Engineer · ProfiteroJun 2020 – Present · 6 yrs 6 mos

Designed and implemented a client dashboard to streamline communication and automate weekly performance reports, improving client engagement. Developed automation processes that increased data delivery success rates for Tier 1 and Tier 2 retailers. Built and optimized backend systems using MySQL and ClickHouse to improve query performance and data accuracy. Wrote automated tests to accelerate onboarding and enhance data quality. Collaborated with cross-functional teams to integrate and monitor systems using Jenkins, RabbitMQ, Datadog, Grafana, and Docker. Leveraged JavaScript for dynamic web features and managed production environments with Linux and Git.

Full Stack Developer · FreelanceJan 2020 – Present · 6 yrs 11 mos

Built and maintained custom web applications using Ruby on Rails, Hotwire, and React for responsive real-time experiences. Developed RESTful APIs and backend services, optimized for performance and scalability. Designed modern, responsive interfaces using React, Bootstrap, and SASS. Applied Redis for caching and system performance improvements. Created and maintained automated tests with RSpec to ensure code quality and reliability.

Education

Bachelor · BSUIR (Belarus)2017 – 2021

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