Senior Java Developer

SmarTek21

124d

About The Position

We’re seeking a Senior Java Developer to design, optimize, and scale distributed backend systems. You’ll work on complex, performance-critical services using modern Java and the Spring ecosystem. This role is ideal for someone who thrives in cloud-native environments and enjoys solving challenging concurrency and scalability problems.

Requirements

• 8+ years of hands-on Java development experience.
• Expert knowledge of Java 11+ features: Streams, Lambdas, CompletableFutures, Virtual Threads.
• Deep experience with the Spring ecosystem (Boot, Cloud, Security, WebFlux, Data JPA).
• Strong grasp of microservices design patterns and distributed system principles.
• Proficiency in container orchestration using Kubernetes and Helm.
• Proven experience with messaging systems like Kafka or RabbitMQ.
• Hands-on experience with monitoring and logging stacks (ELK, Prometheus, Grafana).
• Familiarity with CI/CD pipelines and artifact management tools.

Nice To Haves

• Experience with CQRS, event sourcing, or reactive programming.
• Knowledge of service mesh (Istio, Linkerd) or service discovery (Consul, Eureka).
• Familiarity with cloud environments (AWS, GCP, Azure).

Responsibilities

• Design, develop, and maintain backend services using Java 11+ and Spring Boot.
• Build and optimize microservices architectures with distributed tracing and circuit breakers.
• Write high-performance, concurrent Java code using modern patterns (CompletableFutures, ExecutorService, Virtual Threads).
• Integrate and optimize databases such as PostgreSQL, MySQL, Redis, and MongoDB.
• Implement event-driven and message-based systems using Kafka or RabbitMQ.
• Ensure observability through OpenTelemetry, Prometheus, and Grafana dashboards.
• Deploy and maintain applications in Docker and Kubernetes environments with Helm.
• Collaborate with DevOps to streamline CI/CD using Maven/Gradle, Jenkins, and ArgoCD.
• Profile and tune the JVM for low latency and high throughput using JFR and async-profiler.
• Participate in design reviews, provide mentorship, and uphold code quality standards.

What This Job Offers

• Career Level: Senior
• Number of Employees: 251-500 employees