Senior Java Backend Engineer - Microservices & Cloud

Telnyx; Dublin; On-site; EUR 100,000 - 120,000; Full time

Job summary

Telnyx in Dublin, Ireland is seeking a senior Java backend engineer to work on a distributed data pipeline powering Voice, Messaging and Wireless products. You will join a lean team maintaining 30+ microservices in Java 11 and Scala, aiming for low latency and high availability across regions.

The role requires 4+ years in Java, experience with Kafka and cloud deployments, and a willingness to learn AI tooling. Excellent coding practices and collaboration across global teams are essential.

Qualifications

• Degree in Computer Science, Information Technology, or equivalent work experience.
• 4+ years of experience with Java and its ecosystem of tooling.
• Experience with databases: Cassandra, ClickHouse, or OpenSearch.
• Experience with AI tooling, or a strong willingness to learn.

Responsibilities

• Work on 30+ microservices implemented in Java 11 and Scala that process, aggregate and expose data our engines generate.
• Improve performance of our data pipeline and scale as we grow (currently 10k messages/sec).
• Architect services and pipelines for low latency across global locations (US, EU, Australia, South America).
• Implement fraud detection processes with machine learning (Kafka and Kafka Streams).
• Deploy services to multi-cloud Kubernetes environments to achieve 99.999% uptime.
• Push code to production multiple times a day.

Skills

Java

Scala

Linux

Git

Docker

Kubernetes

Distributed systems

AI tooling willingness

Education

Bachelor's degree in Computer Science, IT or equivalent

Tools

Kafka

Kafka Streams

Docker

Kubernetes

OpenSearch

Cassandra

ClickHouse

Job description

Telnyx in Dublin, Ireland is seeking a senior Java backend engineer to work on a distributed data pipeline powering Voice, Messaging and Wireless products. You will join a lean team maintaining 30+ microservices in Java 11 and Scala, aiming for low latency and high availability across regions.

The role requires 4+ years in Java, experience with Kafka and cloud deployments, and a willingness to learn AI tooling. Excellent coding practices and collaboration across global teams are essential.