Senior Java Backend Engineer | Multi-Cloud, 99.999% Uptime

Telnyx LLC; United States; Remote; USD 140,000 - 180,000; Full time

Job summary

Telnyx LLC is seeking a senior Java backend engineer to help build a highly available data pipeline powering Voice, Messaging and Wireless services. You will work on 30+ microservices using Java 21 and Scala, delivering low-latency data processing for global telecom operations.

Join a lean team with a focus on performance, reliability, and ML-powered fraud detection. You will influence architecture, optimize pipelines, and ship code to production multiple times daily.

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 such as Cassandra, ClickHouse, or OpenSearch.
• Experience with AI tooling, or a strong willingness to learn.

Responsibilities

• Work on 30+ microservices implemented in Java 21 and Scala that process, aggregate and expose data our telecommunication and messaging engines generate.
• Improve performance of our pipeline — we currently process 10k messages/sec and are growing.
• Architect services and pipelines for low latency across regions (U.S., E.U., 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

Distributed systems

AI tooling

Education

Computer Science / Information Technology degree

Tools

Cassandra

ClickHouse

OpenSearch

Job description

Telnyx LLC is seeking a senior Java backend engineer to help build a highly available data pipeline powering Voice, Messaging and Wireless services. You will work on 30+ microservices using Java 21 and Scala, delivering low-latency data processing for global telecom operations.

Join a lean team with a focus on performance, reliability, and ML-powered fraud detection. You will influence architecture, optimize pipelines, and ship code to production multiple times daily.