Kotlin developer

Nitka Technologies; United States; On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Paid vacation

Holidays

Attractive USD compensation

Job summary

Nitka Technologies is seeking an experienced Kotlin developer for a long-term project with a fintech client. Responsibilities include designing banking APIs, building scalable backend solutions using Kotlin, and enhancing the architecture of core systems. Candidates should have 5+ years in the JVM ecosystem, expertise in Kotlin or Java, and strong English skills. This is a full-time remote position with attractive USD compensation and paid vacations.

Qualifications

• 5+ years of experience in the JVM ecosystem, with strong expertise in Kotlin or Java.
• Deep understanding of concurrency and asynchronous programming.
• Experience designing systems using clean architectures (DDD, event-driven approaches).
• Solid knowledge of distributed systems and their trade-offs.
• Hands-on experience with Docker and Kubernetes, preferably in an AWS environment.
• Strong spoken English (Intermediate level and higher).

Responsibilities

• Design and evolve banking APIs for mobile applications and internal/external services.
• Build scalable backend solutions using Kotlin and modern JVM technologies.
• Contribute to the architecture, scalability, and reliability of core banking and partner platforms.

Skills

Kotlin

Java

Concurrency

Asynchronous programming

Docker

Kubernetes

Distributed systems

Clean architectures

Job description

Overview

Nitka Technologies develops software for customers in the US and Europe and brings together about 300 professionals from Eastern Europe, North and South America, Armenia, Georgia and Kazakhstan.

We are looking for an experienced Kotlin developer for a long-term project. The client is a fintech company offering credit products, plastic card issuance, and consumer finance with installment plans.

Responsibilities

• Design and evolve banking APIs for mobile applications and internal/external services.
• Build scalable backend solutions using Kotlin and modern JVM technologies.
• Contribute to the architecture, scalability, and reliability of core banking and partner platforms.

Qualifications

• 5+ years of experience in the JVM ecosystem, with strong expertise in Kotlin or Java.
• Deep understanding of concurrency and asynchronous programming.
• Experience designing systems using clean architectures (DDD, event-driven approaches).
• Solid knowledge of distributed systems and their trade-offs.
• Hands-on experience with Docker and Kubernetes, preferably in an AWS environment.
• Strong spoken English (Intermediate level and higher).

Nice to Have

• Interest or experience in platform engineering.
• Experience with database performance optimization.
• Background in functional programming.
• Experience building internal libraries, SDKs, or developer tools.

Working conditions

• Remote work
• Full-time (8 hours/day)
• Attractive USD compensation
• Paid vacation, holidays