Scanz
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Remote Kotlin / Java Backend Developer
role at
Scanz
Scanz has been working for nearly two decades in the real-time trading technology and fintech space. We deliver complex technological systems that enable serious traders worldwide. By joining Scanz, you’ll become a part of a company that fosters self‑improvement and actively seeks out‑of‑the‑box ideas. Our teams work together to create the next generation of financial software solutions. We welcome all candidates who believe, as we do, that innovation is grounded in education.
Role We are seeking an expert‑level Backend Developer to join our dynamic team and contribute to the development of robust, scalable server‑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.
Responsibilities
Design and implement server‑side logic using Spring Webflux and Kotlin.
Build robust, reliable, fault‑tolerant data pipelines that process millions of operations daily.
Collaborate with front‑end developers to integrate user‑facing elements with server‑side logic.
Develop and maintain APIs, ensuring high performance and responsiveness.
Contribute to database design and implementation (PostgreSQL).
Improve the system’s throughput and incorporate performance testing into our CI pipelines.
Scale services horizontally.
Participate in weekly standups.
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)
SharedWorker
TypeScript
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 spread across time zones.
Strong problem‑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 fault‑tolerant applications.
Experience with containerization technologies (Kubernetes, Docker).
Strong familiarity with database systems, particularly PostgreSQL.
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.
Familiarity with AI tools like Claude Code.
What We Offer
Work within a company with a solid track record of success.
Work alongside and learn from best‑in‑class talent.
Excellent career development opportunities.
Referrals increase your chances of interviewing at Scanz by 2x.
#J-18808-Ljbffr
Remote Kotlin / Java Backend Developer
role at
Scanz
Scanz has been working for nearly two decades in the real-time trading technology and fintech space. We deliver complex technological systems that enable serious traders worldwide. By joining Scanz, you’ll become a part of a company that fosters self‑improvement and actively seeks out‑of‑the‑box ideas. Our teams work together to create the next generation of financial software solutions. We welcome all candidates who believe, as we do, that innovation is grounded in education.
Role We are seeking an expert‑level Backend Developer to join our dynamic team and contribute to the development of robust, scalable server‑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.
Responsibilities
Design and implement server‑side logic using Spring Webflux and Kotlin.
Build robust, reliable, fault‑tolerant data pipelines that process millions of operations daily.
Collaborate with front‑end developers to integrate user‑facing elements with server‑side logic.
Develop and maintain APIs, ensuring high performance and responsiveness.
Contribute to database design and implementation (PostgreSQL).
Improve the system’s throughput and incorporate performance testing into our CI pipelines.
Scale services horizontally.
Participate in weekly standups.
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)
SharedWorker
TypeScript
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 spread across time zones.
Strong problem‑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 fault‑tolerant applications.
Experience with containerization technologies (Kubernetes, Docker).
Strong familiarity with database systems, particularly PostgreSQL.
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.
Familiarity with AI tools like Claude Code.
What We Offer
Work within a company with a solid track record of success.
Work alongside and learn from best‑in‑class talent.
Excellent career development opportunities.
Referrals increase your chances of interviewing at Scanz by 2x.
#J-18808-Ljbffr