Senior Java Architect

ZealHire Inc.; Menlo Park (CA); On-site; USD 180,000 - 260,000; Full time

Job summary

ZealHire Inc. is seeking a senior Java-focused architect to lead the design and implementation of enterprise-grade, event-driven microservices.

The ideal candidate will bring deep Java expertise (Java 17/21+) and hands-on experience with Spring Boot/Spring Cloud, Kafka/Kafka Streams, Debezium CDC, and Kubernetes deployments. The role emphasizes integrating Generative AI, RAG architectures, and AI Agents into enterprise Java applications using LangChain4j, Spring AI, and MCP.

Qualifications

• 12+ years of software development experience with a strong enterprise Java background.
• Java 17/21+, Spring Boot, Spring Cloud, Spring Security – strong hands-on experience required.
• Apache Kafka / Kafka Streams with event-driven architecture experience.
• Debezium CDC and real-time data/event processing experience.
• Kubernetes + Docker + Helm with production enterprise deployments.
• KEDA for event-driven Kubernetes autoscaling.
• Argo CD / GitOps for Kubernetes CI/CD deployments.
• Generative AI integration into enterprise Java applications is required.
• LangChain4j / Spring AI + RAG + AI Agents experience strongly required.
• MCP integration with enterprise Java applications is a key differentiator.
• Strong AWS/Azure, OAuth2/OIDC, JWT, PostgreSQL/Oracle, Redis and OpenTelemetry experience preferred.

Skills

Enterprise Java

Event-driven design

Cloud platforms

Tools

Java 17/21

Spring Boot

Spring Cloud

Spring Security

Apache Kafka

Kafka Streams

Debezium CDC

Kubernetes

Docker

Helm

Argo CD

GitOps

LangChain4j

Spring AI

RAG

MCP

PostgreSQL

Oracle

Redis

OpenTelemetry

OAuth2/OIDC

JWT

AWS

Azure

Job description

Job Description:

The ideal candidate will have deep expertise across Java, Spring Boot, event-driven microservices,

cloud platforms, Kubernetes, modern frontend technologies, and enterprise architecture, along with

hands-on experience integrating Generative AI and intelligent application capabilities into enterprise

platforms.

• 12+ years of overall software development experience with a strong enterprise Java background.
• Java 17/21+, Spring Boot, Spring Cloud, Spring Security – strong hands-on experience required.
• Apache Kafka / Kafka Streams with event-driven architecture experience.
• Debezium CDC and real-time data/event processing experience.
• Kubernetes + Docker + Helm with production enterprise deployments.
• KEDA for event-driven Kubernetes autoscaling.
• Argo CD / GitOps for Kubernetes CI/CD deployments.
• Generative AI integration into enterprise Java applications is required.
• LangChain4j / Spring AI + RAG + AI Agents experience strongly required.
• MCP integration with enterprise Java applications is a key differentiator.
• Strong AWS/Azure, OAuth2/OIDC, JWT, PostgreSQL/Oracle, Redis and OpenTelemetry experience preferred.

Pre-Screening Questions needed from candidate

Q1: Does the candidate have expertise building event-driven microservices using Java 17/21+, Spring Boot, and Spring Security?

Q2: Has the candidate implemented real-time data processing pipelines and event-driven architectures using Apache Kafka / Kafka Streams along with Debezium CDC?

Q3: Has the candidate integrated Generative AI, RAG architecture, or AI Agents into enterprise Java applications using tools like LangChain4j, Spring AI, or Model Context Protocol (MCP)?

Q4: Does the candidate have hands-on experience deploying enterprise workloads to Kubernetes using Helm, GitOps (Argo CD), service meshes (Istio/Linkerd), and KEDA for autoscaling?

$000,000 – $000,000 Salary range is not shown on the candidate portal