Java Microservices Engineer/Developer

9nexus; United States; Remote; USD 120,000 - 170,000; Full time

Job summary

9NEXUS Limited is seeking an experienced Java microservices specialist to design, build, and own scalable backend services powering essential business capabilities.

You will implement secure REST APIs using Java/J2EE, Spring, Spring Boot, and cloud tools, collaborate with cross-functional teams, and contribute to architecture decisions while driving quality, performance, and reliability.

Qualifications

• 6-8+ years of Microservices experience required.
• Strong understanding of microservice architecture.
• Hands-on experience in Java Spring Boot Microservice development.
• Experience with Java/J2EE technologies and troubleshooting across teams.
• Ability to analyze business requirements and draft technical designs.

Responsibilities

• Lead design, development, and implementation of web-based Java applications.
• Perform unit and system testing of application code.
• Ensure application performance meets expectations.
• Coordinate with multiple teams to drive architectural decisions.
• Demonstrate understanding of business needs driving projects.

Skills

Java/J2EE

Spring

Spring Boot

REST

JSON

Python

12 Factor Apps

JavaScript

Microservice architecture

OAuth/JWT security

AWS

MongoDB

Tools

SnapLogic

Mule

Job description

Key Responsibilities:

• Minimum 6 -8+ years of Microservices experience.
• Strong understanding of microservice architecture
• Hands-on experience in Java Sprint Boot Microservice development
• Excellent problem solving/troubleshooting skills on Java/J2EE technologies Experience working with coordination of multiple teams
• Analyze business requirements and create technical design documents that are in accordance with the company's architecture standards.
• Performs and Leads design, development, and implements web-based Java applications to support business requirements.
• Perform unit and system testing of application code as well as execution of implementation activities.
• Ensures that expected application performance levels are achieved.
• Demonstrates strong understanding of the business needs driving the projects

MANDATORY SKILLS :

• Java/J2EE (latest features -Java 21), Spring, Spring Boot, REST, JSON, Python, 12 Factor Apps, JavaScript and microservice architecture
• Need to be strong in Security(Authorization & authentication ) implementation like OAUTH/JWT.
• Hand-on experience on AWS, Mongo DB.

Nice to have

• Good to have Hands on experience in python programming skills.
• Good to have Hands on experience in Snaplogic /Mule (5-10% of overall task list)
• Ability to develop and implement scalable, elastic microservice based platforms
• Excellent problem-solving and analytical skills
• Familiarity with modern development practices and the software development life cycle
• Excellent communication and organizational skills, take the ownership the task.