Java Backend Engineer

Java Backend Engineer (Remote-first)

Build and maintain high-performance, scalable backend systems for mission-critical, data-intensive applications. You’ll design low-latency, high-availability services, work on distributed architectures, and support production reliability through incident response and performance improvements.

Responsibilities

• Design, develop, and maintain scalable backend systems and high-performance applications.
• Build and enhance RESTful APIs and distributed microservices with a focus on reliability, scalability, and low latency.
• Troubleshoot and resolve production issues, improving system stability and continuous performance.
• Contribute to system design specifications, architectural decisions, and technical documentation.
• Participate in on-call rotations and support incident response.
• Collaborate with cross-functional teams (product and engineering) to deliver new features and platform improvements.
• Work on data processing and event-driven systems, including streaming technologies.
• Improve backend infrastructure, including CI/CD, Kubernetes environments, and cloud deployments.

Requirements

• 7+ years of backend software engineering experience building large-scale production systems.
• Strong expertise in Java and Spring Boot, including multithreading/concurrency.
• Solid fundamentals in data structures, algorithms, and system design.
• Experience with MySQL and Cassandra (relational and NoSQL).
• Hands-on experience with RESTful APIs and microservices.
• Familiarity with data processing/streaming frameworks such as Kafka, Airflow, Spark, or Hadoop.
• Experience with CI/CD tooling such as Git and Jenkins.
• Exposure to Kubernetes and cloud platforms such as AWS or GCP.
• Strong debugging, problem-solving, and production performance optimization skills.
• Excellent communication and cross-functional collaboration skills.

Nice-to-haves

• Experience with event-driven architectures and large-scale production reliability practices.