Remote Backend Engineer (Java/Kotlin) for Scalable Cloud

Masabi Jobs; United States; Remote; USD 110,000 - 160,000; Full time

Job summary

Masabi is seeking Backend Developers to advance the Justride platform. You will work on cloud-native, event-driven systems powering transit payments for agencies around the world.

You’ll join a cross-functional team to bring features from concept to production, shaping the rider experience every day. Join Masabi to work with modern tech like Java/Kotlin, AWS, Kafka, and RESTful services in a remote-first environment.

Qualifications

• Clear, confident communication in written and spoken English.
• Solid commercial experience building backend systems in Java or Kotlin.
• Understanding of distributed systems and how to build for scale and reliability.
• Comfortable designing and working with REST APIs and service-based or event-driven architectures.
• Hands-on experience with cloud platforms, ideally AWS.
• A thoughtful approach to code quality, testing and maintainability.
• Collaborative and team-oriented, happy to share knowledge and learn from others.
• Strong problem-solving skills and a proactive mindset.
• Able to explain technical ideas clearly to both technical and non-technical colleagues.

Responsibilities

• Build and maintain backend services and APIs that power core parts of the Justride platform.
• Contribute to the design of scalable, secure and resilient distributed systems.
• Collaborate with cross-functional teams to deliver features from concept through to production.
• Write clean, well-tested, maintainable code and contribute to code reviews and shared engineering standards.
• Build and support integrations with internal services and third-party systems.
• Monitor and improve the performance, reliability and observability of the services you own.
• Contribute to technical discussions and help shape solutions and best practices.
• Take ownership of your work and support team outcomes.

Skills

Java/Kotlin backend

Distributed systems

REST APIs

AWS

Testing/maintainability

English communication

Team collaboration

Problem solving

Explain technical ideas

Tools

Kafka

Terraform

Grafana

Gradle

Maven

Git

AWS services

DynamoDB

S3

SQS

EC2/ECS

Job description

Masabi is seeking Backend Developers to advance the Justride platform. You will work on cloud-native, event-driven systems powering transit payments for agencies around the world.

You’ll join a cross-functional team to bring features from concept to production, shaping the rider experience every day. Join Masabi to work with modern tech like Java/Kotlin, AWS, Kafka, and RESTful services in a remote-first environment.