Remote Kotlin / Java Backend Developer

Remote Kotlin / Java Backend Developer

Romania

The Role:

We are seeking an
- level Backend Developer to join our dynamic team and contribute to the development of robust, scalable
- side applications and data pipelines. You will primarily work with Spring Webflux and Kotlin (and Java). Although existing expertise in Kotlin is preferred, a deep understanding of Java is acceptable if there’s a willingness to adapt and transition quickly.

Scanz is a leading Saa
S Trader Terminal that provides a suite of
- time trading tools to help traders and investors identify live trading opportunities in the US stock market. We are dedicated to offering our users – from trading pros to absolute beginners – an intuitive and efficient trading experience.  

Responsibilities:

• Design and implement
  - side logic using Spring Webflux and Kotlin.
• Build robust, reliable,
  - tolerant data pipelines that process millions of operations daily.
• Collaborate with
  - end developers to integrate
  - facing elements with
  - side logic.
• Develop and maintain APIs, ensuring high performance and responsiveness.
• Contribute to database design and implementation (Postgre
  SQL).
• Improve the system’s throughput and incorporate performance testing into our CI pipelines.
• Scale services horizontally.
• Contribute to weekly standup.

Back End Tech Stack:

• Kotlin
• Spring Webflux
• Ktor Server
• Kotlin Coroutines
• RSocket
• Ktor Client
• Kotlinx Serialization
• Quartz
• Kotest + JUnit
• Gradle

Front End Tech Stack:

• Kotlin Multiplatform
• React (with hooks)
• Shared
  Worker
• Type
  Script
• NPM
• Gradle

Infrastructure:

• AWS + S3
• Prometheus
• Grafana
• Jenkins
• Github

Ideal Profile:

• Strong proficiency in Kotlin / Java.
• Proficiency with Kotlin coroutines (flows).
• Proficiency with Spring Webflux and Reactive Streams back pressure.
• Self-motivated developer comfortable working as a core member on an A-list team of backend and frontend developers split over different time zones.
• Strong
  - solving and analytical skills.
• Excellent collaboration and communication skills within an asynchronous environment (Slack, Loom).
• Deep-level understanding of distributed systems and how to make
  - tolerant applications.
• Experience with containerization technologies (Kubernetes, Docker).
• Strong familiarity with database systems, particularly Postgre
  SQL.
• Comfortable using AWS and cloud computing platforms.
• Solid understanding of the testing pyramid, specifically unit, integration, and E2E tests.
• Readiness and desire to participate in code reviews.
• Familiar with AI tools like Claude Code.

What's on Offer?

• Work within a company with a solid track record of success
• Work alongside & learn from best in class talent
• Excellent career development opportunities