Senior Java Developer
About the Role
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.Key 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.
Required Skills & Experience
- 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 Have
- 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).
Who We are...
SmarTek21, founded in 2006, is an innovative digital transformation leader dedicated to empowering organizations through design-led, data-centric solutions. We believe that exceptional user experiences and intelligent data-driven insights are pivotal in shaping the future of business. At the heart of our approach is Design-Led Engineering, where we combine strategic design principles with cutting-edge technology to create tailored solutions that deliver significant business outcomes. Our commitment to accelerating digital transformation includes specialized expertise in Agile DevOps, Data Engineering and analytics, Testing Automation and support, and comprehensive Managed Application and Infrastructure Services. We’ve evolved from our consulting and development roots into a full-spectrum service provider, integrating advanced technologies like Generative AI (GenAI) to facilitate our clients' seamless, transformative digital journeys. A passion unites our dynamic team of technology visionaries and business strategists for innovation and excellence. At SmarTek21, you'll join a collaborative environment dedicated to shaping the digital landscape and driving impactful results for organizations worldwide.
SmarTek21 is committed to fostering a diverse and inclusive environment. We encourage applications from individuals of all backgrounds and experiences.