Java Developer

Position Summary
We are looking for a Sr. Software Engineer with strong hands-on experience in Java, Spring Framework, Spring Boot, RESTful APIs, Kubernetes, Kafka, PostgreSQL/CNPG, Istio, Temporal, AWS, and Azure. This role will be senior developer position of scalable, cloud-native microservices and distributed platform capabilities. 
The ideal candidate should be comfortable working in an event-driven architecture with REST APIs, workers, asynchronous messaging, cloud deployments, observability, and production-grade reliability. Lirios architecture includes Spring Boot REST APIs, Kafka-based event processing, PostgreSQL-backed services, API gateway patterns, and microservices deployed on Kubernetes.

Key Responsibilities
Java, Spring Boot, Spring Framework, REST APIs, Kafka, and PostgreSQL. 
Build and maintain cloud-native microservices deployed on Kubernetes across AWS and Azure environments. 
Design and implement scalable APIs, workers, event consumers/producers, and integration services. 
Work with Kafka-based asynchronous messaging and event-driven workflows to support distributed system communication. 
Develop services that integrate with platform components such as API Gateway, orchestration services, data services, messaging services, and third-party integrations. 
Partner with architecture, product, QA, DevOps, and data teams to convert business requirements into secure and scalable technical solutions. 

Java 17/21
Springboot 3.X

Front End:
Angular

Temporal

Build tools:
Gradle/Maven

Event Driven Program and messaging system:
Kafka
Tillo
Mailgun
Dynamics CRM

Database/Cache:
Postgres
Redis/Valkey

Cloud:
Docker
Kubernetes
Azure Devops
Aws and s3

Repo/Deployment:
CI/CD
Helm
GitHub

Artifact:
Jfrog

Build Tools:
Gradle/Maven

Code Quality:
SonarQube

Monitor:
DataDo

Contribute to CI/CD pipelines, automated deployments, environment configuration, and release readiness. 
Support production issue triage, root cause analysis, performance optimization, and technical debt reduction.

Required Skills
8+ years of software engineering experience. 
Strong hands-on experience with Java, Spring Framework, Spring Boot, RESTful API development. 
Strong understanding of microservices architecture, domain-driven design, distributed systems, and API design. 
Experience with Kafka, event-driven architecture, consumer groups, message processing, retries, and idempotency. 
Experience with PostgreSQL, database design, SQL, query optimization, and preferably CloudNativePG/CNPG in Kubernetes. 
Hands-on experience with Kubernetes, containers, Helm/manifests, scaling, deployment patterns, and troubleshooting pods/services. 
Experience working in cloud environments such as AWS and Azure. 
Experience with Istio or service mesh concepts such as traffic routing, mTLS, policy enforcement, and observability. 
Experience with workflow orchestration tools such as Temporal. 
Strong understanding of security, authentication/authorization, API gateway patterns, and role-based access controls. 
Experience with CI/CD tools such as GitHub Actions, Azure DevOps, Jenkins, or similar. 
Strong debugging, performance tuning, and production troubleshooting skills and clear communication.