Java Tech Lead
Riverwoods - IL (Need local to IL)
Onsite
Top 3 skills required (Must have):
1) Strong expertise in Core Java, particularly with recent versions of JDK, ensuring up-to-date knowledge of Java 8 through the latest versions. Solid Foundation in Latest version of Java (17 ), Java Memory Models, JVM Performance Tuning ,
2) Proficiency in containerization (e.g., Docker) and orchestration (e.g., Kubernetes) to deploy and manage distributed applications efficiently. Experience with Redhat OpenShift Platform is a definite Advantage.
3) Experience with message brokers like Kafka or RabbitMQ for building scalable, event-driven architectures.

Job Description/ Responsibilities:
General:
Java FSE Senior Developer / Tech Lead Profile
Strong Scrum background.
Delivering superior Engineering outcomes.
Strong expertise in Core Java with special focus on performance
Preferably in Banking / Payments industry experience

- Strong expertise in Core Java, particularly with recent versions of JDK, ensuring up-to-date knowledge of Java 8 through the latest versions.
- Experience with functional and reactive programming and framework such as Akka
- Experience with Quarkus and vertx for developing high-performance, cloud-native Java applications with fast startup times and low memory footprint.
- Experience with gRPC for high-performance, cross-platform RPC (Remote Procedure Call) framework for efficient inter-service communication
- Strong knowledge of serialization and deserialization payload formats such as Protocol Buffers, Avro
- Proven experience in analyzing and optimizing Java-based microservices for performance and scalability.
- Familiarity with NoSQL databases (e.g., MongoDB, Cassandra) for handling large volumes of structured and unstructured data.
- In-depth knowledge of techniques for optimizing applications to achieve low latency and high throughput.
- Experience in transitioning from monolithic architectures to microservices, focusing on modularity, scalability, and maintainability.
- Proficiency in using micro services design patterns for building scalable Java applications
- Experience with message brokers like Kafka or RabbitMQ for building scalable, event-driven architectures.
- Proficiency in containerization (e.g., Docker) and orchestration (e.g., Kubernetes) to deploy and manage distributed applications efficiently.
- Experience in implementing low latency and multi-threading techniques
- Insight into key areas for performance improvement in Java applications, such as garbage collection tuning, memory management, and efficient use of data structures.
- Knowledge of open-source tools to minimize costs while achieving high performance
Core Java: Solid Foundation in Latest version of Java (17 ), Java Memory Models, JVM Performance Tuning, concurrency). Knowing other functional language is a plus.
Database: SQL (Postgres) / NoSQL (Cassandra)
Caching: Familiarity with Redis or Similar is desirable
Event Streaming: Kafka/RabbitMQ
Cloud Native: Docker/Kubernetes/Ansible/Helm/AWS/OCP
Frameworks: Reactive Programming/Spring
Cloud Migration: CDC / ACLs / Hybrid Deployments
DevOps: Pipelines/CICD/Git/TDD/Automated Testing/Chaos Engineering
US Degree would be an advantage