Senior Software Developer with Kotlin, Cloud Product

DataArt; United States; Remote; USD 110,000 - 150,000; Full time

Job summary

DataArt is seeking a seasoned backend engineer to build and improve cloud-scale services for enterprise customers. You’ll work with a cross-functional team to balance maintainability, performance, security, and user experience while delivering features for our clients.

The role emphasizes Kotlin/Java, APIs, and distributed systems, with opportunities to influence architecture and performance. You will review code, write tests, and collaborate across domains in a distributed team.

Qualifications

• Four+ years backend web app experience with Java and/or Kotlin.
• Hands-on Kotlin experience.

Responsibilities

• Develop and maintain backend services with Kotlin/Java.
• Write clean code and unit tests; participate in integration and performance testing.
• Review peers' code and resolve complex technical issues.
• Collaborate across functions to design and support product features.
• Contribute to system designs with attention to performance and reliability.

Skills

Backend development

Data structures & algorithms

API design

Multithreading

Tools

Java

Kotlin

Kubernetes

Kafka

Cassandra

APIs design

Job description

Role overview

Build and improve backend services for a large-scale cloud product used by enterprise customers. You’ll work with a cross-functional team to deliver product features and backend improvements, balancing maintainability and testability with performance, security, and user experience.

Responsibilities

• Develop and maintain backend services using Kotlin, Java, and related technologies.
• Write clean, maintainable code and create unit tests; contribute to integration and performance testing as needed.
• Review colleagues’ code and help resolve complex technical issues.
• Collaborate across functions to design, implement, and support product features.
• Contribute to technical designs and specifications, with attention to system performance and reliability.

Requirements

• At least four years of backend development experience on commercial web applications using Java and/or Kotlin.
• Recent hands-on experience with Kotlin.
• Strong grasp of data structures, algorithms, and computational complexity.
• Experience designing and using APIs, and building or supporting distributed, scalable systems.
• Practical experience with Kubernetes, Kafka, Cassandra, or comparable tools.
• Understanding of Java concurrency and multithreading.
• Upper-intermediate English or higher, with the ability to work independently and communicate effectively in a distributed, multicultural team.

Nice to have

• Experience optimizing performance and contributing to technical design work.