Viktor Sheiko

Senior Ruby Engineer @Machinio

Chicago, IL, US

Backend Engineer with a strong focus on product development, working in an agile team. Played a key role in Machinio’s growth, contributing across multiple teams as the company evolved from startup to scale-up.Key Highlights- Launched A/B tests to validate performance improvements and new features, enabling data-driven decision-making- Built and maintained an automated email notification system to alert buyers about new relevant listings- Worked on the search infrastructure powered by Apache Solr, improving relevance and scalability- Built advanced filters with faceted search to enhance the buyer experience and help users narrow down results efficiently- Contributed to the development of Machinio System, a CMS platform enabling equipment sellers to launch their own websites- Worked on a Single Page Application using Vue.js and Ruby on Rails, providing a seamless experience for managing inventory, inquiries, and analytics- Developed supporting microservices in Go, including an email parsing service to extract leads from incoming messages and integrate them into the CRM- Built a lightweight event ingestion service in Go for collecting user interaction data across the platform and storing it in a structured analytics database.

Orel Technical University (OrelSTU)

Bachelor of Science, Software Engineering