Senior Java Engineer

Senior Java Engineer

Onsite in Dearborn, MI 5 days a week

JD:

Java Spring Boot Connected Services

Overview

We are looking for a skilled Senior Java Engineer to design and deliver scalable, cloud-native microservices within our Connected Services platform. You will own the full software lifecycle - from architecture through deployment - building robust APIs and event-driven systems that power real-time device and data integrations.

Responsibilities

Design and develop RESTful and event-driven microservices using Java 17+ and Spring Boot 3
Build and maintain integrations with IoT devices, third-party APIs, and connected platforms
Implement messaging pipelines with Kafka or RabbitMQ for real-time data streaming
Write clean, testable code with JUnit, Mockito, and integration test suites
Collaborate with product and DevOps on CI/CD pipelines (Docker, Kubernetes, Helm)
Participate in architecture reviews and define best practices for the team

Required Skills

5+ years with Java (Java 17+ preferred) and Spring Boot ecosystem
Strong knowledge of Spring Cloud, Spring Security, and Spring Data JPA
Experience with Kafka, RabbitMQ, or similar messaging technologies
Familiarity with OAuth 2.0, JWT, and API security patterns
Proficient with SQL/NoSQL databases (PostgreSQL, MongoDB, Redis)
Hands-on with Docker and Kubernetes in cloud environments (AWS, GCP, or Azure)

Nice to Have

Experience with MQTT, AMQP, or CoAP for IoT device communication
Knowledge of OpenAPI / Swagger specification and contract-first design
Exposure to service mesh (Istio, Linkerd) and observability tooling
Contributions to open-source Java or Spring Boot projects