Scala Engineer (Senior)

21 000 - 27 000 PLNNet per month - B2B

Scala Engineer (Senior)

Scala

-, Kielce +2 Locations

VirtusLab

21 000 - 27 000 PLN
Net per month - B2B
Full-time
B2B
Senior
Remote

Tech stack

    English

    B2

    JVM

    advanced

    Java

    regular

    Performance optimization

    regular

    Scala

    junior

    C++

    nice to have

    Kotlin

    nice to have

Job description

We are #VLteam – tech enthusiasts constantly striving for growth. The team is our foundation, that’s why we care the most about the friendly atmosphere, a lot of self-development opportunities and good working conditions. Trust and autonomy are two essential qualities that drive our performance. We simply believe in the idea of ​​“measuring outcomes, not hours”. Join us & see for yourself!


About the role

Join us in developing a cutting-edge framework powered by Scala!


Project

Graph


📝 Project Scope

The project builds a high-performance framework in Scala focused on object and graph-oriented computing. It integrates deeply with JVM internals and the Scala compiler to solve complex challenges in concurrency, memory allocation, and graph processing. Designed for scalability and efficiency, the framework supports over 1000 engineers globally.


🛠 Tech Stack

Scala 2.13, JVM, Java (21 with planned migration to 25), C++, performance optimisation and testing


🤝 Team

The team consists of over 10 experienced engineers distributed across North America, Europe, and Asia. They bring deep expertise in Scala, JVM internals, and performance optimization, working closely under a UK-based Project Manager.


Open positions in this project


What we expect in general

  • Strong proficiency in Scala and its ecosystem, or extensive experience with low-level JVM internals and high-performance Java development.

  • Hands-on experience with compile-time or metaprogramming: Scala macros, compiler plugins, annotation providers in Java, or bytecode manipulation.

  • Deep understanding of performance optimization

  • Practical experience solving graph algorithms and concurrency challenges.

  • Strong communication skills and the ability to convey complex technical concepts clearly.

  • A pragmatic approach to problem-solving, balancing technical excellence with real-world constraints.

  • Ability to work effectively within a team, contributing to a collaborative and high-performance engineering culture.

  • Good command of English (B2/C1).


Don’t worry if you don’t meet all the requirements. What matters most is your passion and willingness to develop. Moreover, B2B does not have to be the only form of cooperation. Apply and find out!


Published: 14.08.2025

Meet the company

VirtusLab

Join the VLteam and elevate your career to new heights! Join us in shaping the future of software engineering with a team that values flexibility, fosters an open-minded culture, and delivers outstanding solutions. We have extensive knowledge about Data Engineering & Data Science, Cloud-Native Services, Reactive Systems, Dev Tooling and Frontend. We are also worldwide experts in Scala language, officially supporting its development and tooling.

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