Senior Ruby on Rails Engineer - Scalable Data Systems

SOFTSWISS; Polska; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Private health insurance

Sports benefits

Comprehensive Mental Health Program

Free English lessons

Local language courses

Paid time off

Maternity leave support

Referral program rewards

Upskilling, internal workshops, and 参与

Job summary

SOFTSWISS is seeking a Senior Ruby Developer to join our engineering team in Poland. You will design and build scalable Ruby services for high-load, data-intensive systems, owning solutions from implementation to production and optimising performance.

You will collaborate with product and infrastructure teams, research new technologies, and contribute to engineering best practices. The role requires strong Ruby, SQL skills, and a proven track record of delivering complex data-driven solutions.

Qualifications

• 5+ years of software development experience.
• Strong Ruby programming skills.
• Experience building data-intensive applications and tuning performance.
• Experience delivering complex solutions from scratch.
• Strong SQL skills and relational database expertise.
• Good communication skills.

Responsibilities

• Design and build scalable Ruby services for high-load systems.
• Own solutions from implementation to production.
• Monitor and optimize production performance.
• Collaborate with product, infra and business teams.
• Research and develop new technologies and tools.
• Participate in agile development with senior engineers.

Skills

Ruby programming

Data-intensive apps

SQL

Performance tuning

OOP & algorithms

Communication

Tools

ClickHouse

Kafka

Kubernetes

Prometheus

AI tools

Job description

SOFTSWISS is seeking a Senior Ruby Developer to join our engineering team in Poland. You will design and build scalable Ruby services for high-load, data-intensive systems, owning solutions from implementation to production and optimising performance.

You will collaborate with product and infrastructure teams, research new technologies, and contribute to engineering best practices. The role requires strong Ruby, SQL skills, and a proven track record of delivering complex data-driven solutions.