Senior Software Developer with Kotlin, Cloud Product

DataArt; Poland; Remote; PLN 210,000 - 320,000; Full time

Job summary

DataArt is seeking a Senior Software Developer to build and enhance backend services for a cloud product. You will work with a cross-functional team to deliver high-quality solutions for enterprise users.

You will focus on Kotlin/Java backend, APIs, and scalable distributed systems, collaborating across teams to design and support features while ensuring performance and security.

Qualifications

• 4+ years of backend development of commercial web applications using Java and/or Kotlin
• Recent experience with Kotlin
• Strong understanding of CS concepts including data structures, algorithms, and complexity
• Experience designing and working with APIs
• Experience building or supporting distributed and scalable systems
• Hands-on experience with Kubernetes, Kafka, Cassandra, or similar tools
• Good understanding of concurrency and multithreading in Java
• Upper Intermediate English or higher
• Ability to work independently in a distributed team
• Ability to communicate effectively in a multicultural environment
• Experience with performance optimization
• Experience contributing to technical design and specifications

Responsibilities

• Develop and maintain backend services for a cloud product
• Write clean, maintainable, and testable code
• Create unit tests and participate in integration testing
• Participate in performance testing when needed
• Take part in code reviews
• Contribute to solving complex technical problems with focus on performance, security, and UX
• Collaborate with cross functional teams to design, implement, and support features

Skills

Java

Kotlin

APIs

Distributed systems

Concurrency

Performance optimization

English

Independent work

Multicultural communication

Tools

Kubernetes

Kafka

Cassandra

Job description

We are looking for a Senior Software Developer to help build and improve backend services for a cloud based product. In this role, you will work closely with a cross functional team to deliver practical and high quality solutions for enterprise users.

Cloud Product is a large scale cloud based product designed for enterprise customers. You will work on backend capabilities and product improvements in close collaboration with cross functional stakeholders.

• Develop and maintain backend services using Kotlin, Java, and related technologies
• Write clean, maintainable, and testable code
• Create unit tests and participate in integration testing when needed
• Participate in performance testing when needed
• Take part in code reviews
• Contribute to solving complex technical problems with attention to performance, security, and user experience
• Collaborate with cross functional teams to design, implement, and support product features

• 4+ years of experience in backend development of commercial web applications using Java and or Kotlin
• Recent experience with Kotlin
• Strong understanding of core computer science concepts including data structures, algorithms, and complexity
• Experience designing and working with APIs
• Experience building or supporting distributed and scalable systems
• Hands on experience with Kubernetes, Kafka, Cassandra, or similar tools
• Good understanding of concurrency and multithreading in Java
• Upper Intermediate English or higher
• Ability to work independently in a distributed team
• Ability to communicate effectively in a multicultural environment

• Experience with performance optimization
• Experience contributing to technical design and specifications