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Senior Back-End Developer

Network RecruitmentJohannesburg, South Africa

30+ days ago

Job description

Key Responsibilities :

Back-End Development : Architect, develop, and optimize scalable applications using Java and Spring Boot.
Database Operations : Implement advanced query optimization for PostgreSQL and Cassandra, ensuring efficient and reliable data management.
API Development : Build and secure RESTful APIs (OpenAPI) and GraphQL services, implementing security best practices with OAuth2.0, JWT, and API gateways.
Microservices & Event-Driven Systems : Design resilient distributed services within a microservices architecture using Kafka or RabbitMQ.
Cloud & Containers : Lead deployment strategies with Docker, Kubernetes, and AWS, ensuring scalability and high availability.
Engineering Best Practices :

Drive CI / CD automation and release pipelines.

Ensure code quality with SonarCloud and SonarLint.

Apply static analysis, automated testing, and performance benchmarking.

Security & Compliance : Implement secure authentication workflows and ensure adherence to OWASP security guidelines.

System Design & Performance : Develop architecture diagrams, caching strategies, and load balancing solutions.

Testing & QA : Define test strategies with JUnit, Mockito, and automated frameworks to ensure reliability and stability.

Requirements :

Minimum 5 years of back-end engineering experience (preferably 7+ years) in distributed systems, cloud environments, or microservices.

Strong proficiency in Java, Spring Boot, and cloud-native development.

Hands-on experience with Docker, Kubernetes, and AWS.

Proven track record in system design, API security, and performance optimization.

Bachelors Degree in Computer Science / Engineering (or equivalent experience).

Fluent in English, with excellent communication skills.

Apply now!

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Senior Developer • Johannesburg, South Africa

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