Senior Ruby on Rails Engineer - Data-Driven & High-Impact

Softswiss; Warszawa; On-site; PLN 180,000 - 300,000; Full time

Benefits offered by this job

Private health insurance

Sports benefits

Mental Health Program

Free English lessons

Local language courses

Paid time off

Maternity leave support

Referral program rewards

Upskilling and internal workshops

Job summary

SOFTSWISS is seeking a Senior Ruby Developer in Warsaw to design and build scalable Ruby services for data-intensive, high-load systems. You will own end-to-end delivery from implementation to production, troubleshoot complex issues, and optimize both application and database performance in a fast-paced, agile environment.

You will collaborate with product, infrastructure and business teams and explore new technologies to improve reliability and efficiency.

Qualifications

• Minimum 5 years in software development.
• Solid Ruby programming skills.
• Hands-on experience with data-intensive applications and performance tuning.
• Experience building complex solutions from scratch.
• Strong SQL skills and relational DB understanding.
• Deep data structures, OOP and algorithms knowledge.
• Good communication skills.

Responsibilities

• Design and improve scalable Ruby services for high-load systems.
• Own solutions from implementation to production and optimize performance.
• Work in a fully agile environment with senior engineers and product managers.
• Monitor production services and drive reliability.
• Research and adopt new technologies and tools.
• Collaborate with product, infrastructure and business teams.

Skills

Ruby programming

Data-intensive apps

SQL & relational DBs

OOP & algorithms

Communication skills

Tools

ClickHouse

Kafka

Job description

SOFTSWISS is seeking a Senior Ruby Developer in Warsaw to design and build scalable Ruby services for data-intensive, high-load systems. You will own end-to-end delivery from implementation to production, troubleshoot complex issues, and optimize both application and database performance in a fast-paced, agile environment.

You will collaborate with product, infrastructure and business teams and explore new technologies to improve reliability and efficiency.