Ruby on Rails Developer - Senior

  • Warsaw, Poland
  • Remote (Poland)
  • Full-time
  • Posted
No Polish requiredRemote (Poland)
Apply from
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Polish
Not required
English
Working language
Visa sponsorship
Not stated
Relocation support
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Salary
Not disclosed

Overview:

We are looking for a Senior Ruby Developer to join a highly experienced engineering team working on complex, data-intensive systems. You will help design and build reliable, fault-tolerant solutions, take ownership of their performance in production, and solve challenging data and scalability problems.

Purpose of the role:

Design and improve scalable Ruby services for high-load, data-intensive systems. You will own solutions from implementation to production, troubleshoot complex issues, optimize application and database performance, and contribute to technical decisions and engineering practices.

Key responsibilities:

  • Work in a fully agile environment with senior engineers and product managers

  • Participate in designing fault-tolerant, highly available and optimized solutions

  • Monitor and optimize your services in production for excellence

  • Research and develop new technologies and tools

  • Collaborate with other teams - product, infrastructure and business

Required Experience:

  • Minimum 5-year experience in software development

  • Solid Ruby programming skills

  • Hands-on experience with data-intensive applications development & performance tuning

  • Experience in developing complex solutions from scratch

  • Strong SQL skills and solid understanding of relational databases, with the ability and curiosity to investigate complex data issues, analyze large datasets, and perform root-cause analysis

  • Deep data structures, OOP, and algorithms knowledge

  • Good communication skills

Nice to have:

  • Familiarity with ClickHouse

  • Familiarity with AI-powered developer tools and practical experience integrating them into daily development workflows

  • Experience with Kafka

  • Ability to implement space and time-efficient algorithms and understand which one is preferable and when

  • Readiness to learn other programming languages (e.g. Golang, Scala)

  • Familiarity with SRE practices

  • Familiarity with cloud native technologies (e.g. k8s, Helm, Prometheus)

Our Benefits:

  • Private health insurance

  • Sports benefits

  • Comprehensive Mental Health Program

  • Free English lessons (online)

  • Local language courses

  • Paid time off

  • Maternity leave support

  • Referral program rewards

  • Upskilling, internal workshops, and participation in professional conferences and corporate events

Skills

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About SOFTSWISS

Overview

SOFTSWISS is an iGaming technology provider offering a full ecosystem of online casino and sportsbook software solutions and services.