Softswiss

Ruby on Rails Developer - Senior

Warszawa, PL • Beograd, RS • Kato Polemidia, CY • Poznań, PL • T'bilisi, GE · Work style not stated · Full-time

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About the role

Description from the employer’s posting. Check the employer’s page for the current version.

EmployerSoftswiss
LocationWarszawa, PL • Beograd, RS • Kato Polemidia, CY • Poznań, PL • T'bilisi, GE
Work styleWork style not stated
Employment typeFull-time
Employer posted20 days ago

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

Show full description

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

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