Java & Scala Developer — Security-Focused, AKKA/Kafka

Quantum Technologies. LLC; Lansing (MI); On-site; USD 140,000 - 190,000; Full time

Job summary

Quantum Technologies. LLC is seeking a senior developer to review vulnerabilities identified by the Application Security team and to craft robust fixes with a focus on repeatable solutions. You will implement tests to prevent regressions and align with secure coding practices across authentication, authorization, and transport security domains.

We value experience with Scala, AKKA, Kafka, Postgres, and unit testing, plus familiarity with Docker, AWS, and Kubernetes in a JVM context.

Qualifications

• 8+ years of Java software development experience.
• 3+ years of Scala development experience.
• 2+ years AKKA development experience.
• Experience with Kafka and Postgres.
• Experience with writing unit tests.

Responsibilities

• Review findings identified by our Application Security team alongside the Clearing development lead and develop a clear understanding of the vulnerability pattern and its root cause.
• Design and implement code fixes with an emphasis on consistent, repeatable solutions where the same vulnerability pattern appears in multiple locations.
• Write or update unit and integration tests to validate fixes and prevent regression.
• Follow existing coding standards and participate in code review with the development lead prior to merge.
• Address vulnerability categories in scope: authentication and authorization controls, transport security, secrets handling, input validation, and related secure coding domains.

Skills

Java

Scala

AKKA

Kafka

Postgres

Unit testing

Tools

Docker

AWS

Kubernetes

Job description

Quantum Technologies. LLC is seeking a senior developer to review vulnerabilities identified by the Application Security team and to craft robust fixes with a focus on repeatable solutions. You will implement tests to prevent regressions and align with secure coding practices across authentication, authorization, and transport security domains.

We value experience with Scala, AKKA, Kafka, Postgres, and unit testing, plus familiarity with Docker, AWS, and Kubernetes in a JVM context.