Senior Backend Engineer - Kafka + Spring Boot + Cassandra + GPU Metering

Kafka + Spring Boot + Cassandra + GPU Metering = Our Daily Stack.

We are hiring a Senior Backend Engineer (Distributed Systems & Platform) with 3 to 5 years of experience to own the control plane of our Sovereign Cloud platform.

What we're looking for (3–5 Years Experience)

• Deep mastery of Spring Boot & Spring Cloud.
• Strong hands-on experience with Apache Kafka for event streaming.
• Experience with PostgreSQL and Cassandra for massive metric logging.
• Familiarity with building API gateways for OpenStack features.

What you’ll do

• Spin up high-performance microservices to handle complex cluster provisioning.
• Build systems capable of metering intense GPU usage by the second.
• Ensure banking-grade security (OAuth2, OIDC) for ultimate data sovereignty.
• Connect our platform with external Enterprise ERPs (including our partnership with Open Dhi).

What makes this role unique?

You aren’t just building another SaaS dashboard. You will be building the high-throughput engine that allows enterprises to securely provision sovereign cloud resources. Your code will directly route requests to the Python infrastructure layer and manage critical Billing (BSS) and Operations (OSS) support systems.

If you have a solid foundational track record in distributed systems, and want to be a core part of a sovereign cloud revolution, send your resume to sumi@machers.tech