Senior Scala Engineer - Lead Architect & Real-Time Systems

Caesars Sportsbook & Casino; Kraków; On-site; PLN 180,000 - 260,000; Full time

Job summary

Caesars Sportsbook & Casino in Kraków is seeking a Senior Scala Engineer to join a team delivering high-quality, production-grade software within a Scrum framework. You will mentor juniors, enforce best practices, and contribute to architectural decisions, while ensuring services remain healthy in production.

You will write Scala code, collaborate with cross-functional teams, and help drive technical excellence across real-time, high-throughput systems.

Qualifications

• 5+ years in software engineering, preferably in real-time or betting platforms.
• Strong Scala experience and familiarity with Zio, Cats Effect.
• Experience building high-throughput APIs and cloud-native design on AWS.

Responsibilities

• Directly contribute to team efforts by writing and reviewing impactful Scala code and Kubernetes/Gitlab deployment code.
• Develop, implement, and maintain best practices and standards for higher quality and reliability.
• Ensure code reviews are effective and address technical debt alongside product work.
• Collaborate with Solutions Architects to review architectural documentation before team engagement.
• Advocate for addressing technical debt while delivering product features.
• Collaborate with Product in planning activities, including sizing, risks, and dependencies.
• Ensure requirements are clear and aligned with sprint goals and capacity.

Skills

Scala engineering

Mentoring

Agile / Scrum / XP

Tools

Kafka

PostgreSQL

Cassandra

Redis

Dynatrace

Splunk

AWS

Zio

Cats Effect

Kubernetes

Docker

GitLab

Job description

Caesars Sportsbook & Casino in Kraków is seeking a Senior Scala Engineer to join a team delivering high-quality, production-grade software within a Scrum framework. You will mentor juniors, enforce best practices, and contribute to architectural decisions, while ensuring services remain healthy in production.

You will write Scala code, collaborate with cross-functional teams, and help drive technical excellence across real-time, high-throughput systems.