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# Senior Backend Engineer (Kotlin)

- **Company:** RUNA CAPITAL, INC.
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Software Quality, Code Review, Search Algorithms, Software Engineering, Backend, Kotlin
- **Published:** September 5, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/pho67f87n0

## About the Role

The ideal candidate is a self-motivated professional, capable of multitasking and collaborating effectively within a team. You should have strong architectural thinking, along with extensive experience in Kotlin and Java. In this role, you will play a key part in designing, developing, and evolving our back-end systems, leveraging Kotlin to build scalable and high-performing solutions., * 5+ years of experience in Kotlin / Java

 * Demonstrated ability in designing, building, and maintaining high-performance, scalable, and reliable backend systems. Experience with flight booking systems or in in the travel industry is highly beneficial.
 * Ability to tackle complex problems, think analytically, and come up with creative and efficient solutions.
 * Commitment to code quality, documentation, and sound testing practices. Experience with performance tuning and optimization techniques.

## Description

* Develop and enhance features for their powerful back-end system that processes millions of requests daily.
 * Take charge of developing and maintaining advanced Kotlin-based backend systems that support flight search, booking, and post-booking functionalities. Ensure the systems are scalable, reliable, and efficient.
 * Uphold and enhance code quality through rigorous testing, code reviews, and implementing best practices in software development. Mentor junior developers in these practices.
 * Continuously explore and integrate new technologies and methodologies to improve system functionality and performance. Focus on optimizing flight search algorithms and enhancing user experience.
 * Participate actively in all phases of the product development lifecycle, from planning and design to implementation and release. Drive continuous improvement in processes and technologies.


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- [Moving from Java to Kotlin](https://www.wearedevelopers.com/videos/384-moving-from-java-to-kotlin)
- [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse)
- [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Why Kotlin is the better Java and how you can start using it](https://www.wearedevelopers.com/videos/661-why-kotlin-is-the-better-java-and-how-you-can-start-using-it)
- [Route from Java to Kotlin](https://www.wearedevelopers.com/videos/512-route-from-java-to-kotlin)

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