Senior Ruby on Rails Developer

TL;DR

Senior Ruby on Rails Developer: Building and optimizing fault-tolerant, high-load backend services for data-intensive applications with an accent on performance tuning, SQL database architecture, and complex algorithm implementation. Focus on designing scalable systems from scratch, collaborating within a cross-functional agile team, and ensuring production excellence.

Location: Must be based in Poland

Company

hirify.global is an international product company specializing in software solutions for the iGaming industry.

What you will do

• Design and develop fault-tolerant, highly available, and optimized backend solutions.
• Analyze large datasets, investigate complex data issues, and perform root-cause analysis using SQL.
• Monitor and optimize services in production to ensure high performance and reliability.
• Collaborate with cross-functional teams including product managers and infrastructure engineers.
• Research and implement new technologies to improve development workflows and system efficiency.
• Work within an agile environment to deliver high-quality software features.

Requirements

• Location: Must be based in Poland.
• Minimum 5 years of professional experience in software development.
• Strong Ruby programming skills with deep understanding of OOP, data structures, and algorithms.
• Hands-on experience in developing data-intensive applications and performance tuning.
• Solid SQL expertise and experience working with relational databases.
• Good communication skills to collaborate effectively with distributed teams.

Nice to have

• Practical experience with ClickHouse, Kafka, and cloud-native technologies like k8s, Helm, or Prometheus.
• Experience integrating AI-powered developer tools into daily workflows.
• Understanding of SRE practices and willingness to learn additional languages like Golang or Scala.

Culture & Benefits

• Private health insurance and comprehensive mental health support.
• Financial support for gym memberships and professional growth.
• Language training including free English lessons and local language courses.
• Flexible working environment with an additional day off per year.
• Opportunities for upskilling through internal workshops and participation in industry conferences.