Senior Java Developer - Remote (Madison Area) Spring/Angular

IO Datasphere, Inc.; Madison (WI); Remote; USD 120,000 - 170,000; Full time

Job summary

IO Datasphere, Inc. is seeking a Senior Java Developer to design and implement scalable backend services using Java, Spring Boot, Kafka, Redis, and Angular front-ends.

The role emphasizes high performance, code quality, and collaboration across teams in a fast-paced environment. The successful candidate will deliver RESTful APIs, implement unit tests with JUnit and Playwright, and participate in the full software development lifecycle, including design, testing, and deployment.

Qualifications

• 8+ years - Experience with Java (8 to 21) and spring framework/spring boot.
• 8+ years - Web applications development, web services, REST API.
• 5+ years - Messaging Queues and Caching with Kafka/Redis.
• 5+ years - Angular 21 experience.
• 8+ years - Relational databases like Oracle.
• 5+ years - JUnit and Playwright experience.
• 5+ years - Experience with AI - Prompts/Skills/MCP.

Responsibilities

• Develop and maintain Java(8 to 21)-based backend applications with high performance and scalability.
• Unit test and code coverage using JUnit.
• Develop and maintain Angular(21)-based front‑ends with responsive, accessible UIs.
• Create and maintain RESTful APIs for frontend-backend integration.
• Troubleshoot and resolve issues to ensure reliability and robustness.
• Collaborate with cross-functional teams to gather requirements and implement solutions.
• Use AI prompts/skills/MCP to speed up development processes.

Skills

Java & Spring

Web apps & REST

Messaging Queues & Caching

Angular

Oracle DB

JUnit & Playwright

TypeScript

HTML5

CSS3

Hibernate/JPA

SCRUM

Cloud Platforms

AI prompts/skills/MCP

Education

Bachelor's Degree

Tools

Kafka

Redis

Docker

Kubernetes

Azure DevOps

Angular CLI

Job description

IO Datasphere, Inc. is seeking a Senior Java Developer to design and implement scalable backend services using Java, Spring Boot, Kafka, Redis, and Angular front-ends.

The role emphasizes high performance, code quality, and collaboration across teams in a fast-paced environment. The successful candidate will deliver RESTful APIs, implement unit tests with JUnit and Playwright, and participate in the full software development lifecycle, including design, testing, and deployment.