Senior Scala Engineer - FinTech / Trading

Senior Scala Engineer - Kraków, Poland - 12 months

This is a backend-focused Scala engineering role within a highly technical team working on a cloud migration project for an investment bank. The work involves upgrading legacy microservices into GCP and contributing to vulnerability-related engineering tasks. Financial domain experience is not required. The team operates in an Agile environment and values clean, functional code and modern engineering practices.

Tech Stack

• Scala (core language)

• Akka and ZIO (akka being replaced by ZIO)

• MongoDB, Oracle

• Docker, Kubernetes (GCP)

• Kafka-like messaging systems

• Functional programming principles

• Any cloud exposure is valued.

Responsibilities

• Upgrade and modernise microservices into GCP

• Contribute to vulnerability-related engineering work

• Collaborate with a team of Scala developers

• Participate in Agile ceremonies and technical discussions

• Write clean, testable, functional code

Requirements

• 5+ years in software development, ideally in product-focused environments

• Strong Scala experience, including Akka or ZIO

• Solid understanding of Docker, Kubernetes, and cloud platforms

• Experience with MongoDB, Oracle, and messaging systems

• Comfortable with functional programming

Technical Interview (1 hour) – conversational, focused on Scala and project overview

Why Join?

• Work on a modern tech stack with experienced engineers

• All systems are either new or being modernised

• Collaborative team culture with learning opportunities

• Long-term budget secured through end of next year