Senior Backend Engineer (Java/Kotlin)

Airomeda; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

Airomeda is seeking a Senior Backend Engineer to design and deliver JVM-based services for client projects, contributing to implementation, architecture, and reliability. You will mentor peers through pairing and share production responsibilities in a distributed systems environment.

Strong Java 21 and Kotlin skills are essential, along with SQL, REST, and GraphQL API design. You will participate in code reviews, influence architectural decisions, and uphold high standards for testing and

Qualifications

• 5+ years of production experience with Java 21 or later, Kotlin, or both.
• Experience with distributed systems, event-driven architecture and messaging such as Kafka or RabbitMQ.
• PostgreSQL experience, including data modeling.
• Ability to design REST and GraphQL APIs.
• A disciplined approach to unit and integration testing.
• Written English communication skills.

Responsibilities

• Build and maintain core backend services for client engagements.
• Contribute to code reviews and architectural decisions.
• Pair with junior engineers to support their development.
• Guide technical choices related to performance and regulatory compliance.
• Share on-call duties and help resolve production incidents.
• Apply unit and integration testing to service development.

Skills

Java

Kotlin

Distributed systems

Event-driven architecture

Kafka

RabbitMQ

PostgreSQL

REST APIs

GraphQL APIs

Unit and integration testing

Written English communication

Tools

PostgreSQL

Job description

Role overview

Design and deliver backend services for client projects, contributing to both implementation and technical direction. The role combines JVM-based service development with distributed systems work, mentoring through pairing and shared responsibility for production reliability.

Responsibilities

• Build and maintain core backend services for client engagements.
• Contribute to code reviews and architectural decisions.
• Pair with junior engineers to support their development.
• Guide technical choices related to performance and regulatory compliance.
• Share on-call duties and help resolve production incidents.
• Apply unit and integration testing to service development.

Requirements

• At least five years of production experience with Java 21 or later, Kotlin, or both.
• Experience with distributed systems, event-driven architecture and messaging such as Kafka or RabbitMQ.
• PostgreSQL experience, including data modeling.
• Ability to design REST and GraphQL APIs.
• A disciplined approach to unit and integration testing.
• Written English communication skills.