We’re looking for an experienced Senior Back-End Developer with deep Java and Spring Boot expertise to help us build scalable, robust microservices and data pipelines for our next-generation fintech platform.
What you’ll do:
- Design, build, and maintain highly scalable back-end services using Java and Spring Boot.
- Develop RESTful APIs and integrate with messaging systems like Kafka and RabbitMQ.
- Work across relational (Postgres) and NoSQL (Cassandra, OpenSearch, Pinot) databases to deliver high-performing systems.
- Manage data workflows using Kafka and Apache Airflow.
- Implement automated testing strategies with JUnit/Mockito, TestContainers, and BDD frameworks.
- Ensure observability through logging, tracing, and monitoring with Prometheus and Grafana.
- Collaborate with multidisciplinary teams to design secure, efficient, and scalable solutions.
What you’ll bring:
- Strong expertise in Java (concurrency, collections, streams, design patterns).
- Proven experience with Spring Boot, Spring Data, Spring Security, and Hibernate/JPA.
- Solid background in microservices architecture, Docker/Kubernetes, and CI/CD (GitLab CI).
- Knowledge of message-driven architectures, distributed systems, and idempotent pipelines
Nice to have:
- Familiarity with Scala, Python, or reactive programming.
- Experience with Kafka Streams, Kafka Connect, and advanced distributed system design.
While the position is remote, we’re only able to proceed with candidates who already hold the legal right to live and work in South Africa.
