Sr. Java Developer (AWS Lambda / Microservices)

ZipStaff; United States; Remote; USD 130,000 - 170,000; Part time

Benefits offered by this job

Health Insurance

Dental Insurance

Vision Insurance

401(k) + 401(k) matching

Paid time off

Referral Program

Job summary

ZipStaff is seeking a Senior Java Developer for a 5-month remote contract. The role focuses on building cloud-native applications using Java and AWS, including serverless workflows with AWS Lambda and scalable microservices.

You will collaborate with cross-functional and DevOps teams in an Agile environment. Your work will span the full SDLC, writing clean code, and participating in peer reviews to ensure reliability and maintainability of the system.

Qualifications

• Senior-level Java development experience.
• Hands-on AWS Lambda/serverless experience.
• Experience designing/building microservices.

Responsibilities

• Design, develop and maintain microservices-based apps in Java.
• Implement serverless functions with AWS Lambda.
• Participate in full SDLC: requirements, design, coding, testing, deployment.
• Write clean, well-documented code following standards.
• Collaborate with DevOps on CI/CD pipelines.

Skills

Java

AWS Lambda

Microservices

CI/CD

Agile

Troubleshooting

Code Reviews

Communication

US-based

Tools

AWS

Spring Boot

REST APIs

Job description

Job Title: Sr. Java Developer (AWS Lambda / Microservices)

Location: Chapel Hill, NC (Remote)

Employment Type: W2 Contract

About the Opportunity:

ZipStaff is hiring a Sr. Java Developer for our client, a global IT services and consulting organization, to design and enhance cloud-native applications using Java and AWS. You will build scalable microservices and serverless workflows with AWS Lambda, working with cross-functional and DevOps teams in an Agile environment. This is an approximately 5-month, fully remote contract role.

What You'll Do:

• Design, develop and maintain microservices-based applications primarily using Java.
• Implement serverless functions and workflows using AWS Lambda and related AWS services.
• Participate in the full SDLC, including requirements analysis, design, coding, testing and deployment.
• Write clean, efficient and well-documented code that follows coding standards.
• Collaborate with DevOps teams on CI/CD pipeline integration and deployment.
• Troubleshoot, debug and resolve production issues promptly.
• Engage in peer code reviews and provide constructive feedback.
• Contribute to architectural decisions and provide technical guidance.
• Improve system reliability, scalability and maintainability through refactoring.

Required Qualifications:

• Senior-level professional experience developing applications in Java.
• Hands-on experience with AWS Lambda and serverless architecture.
• Proven experience designing and building microservices.
• Experience with CI/CD pipelines and Agile delivery.
• Strong troubleshooting, debugging and code review skills.
• Strong communication and collaboration skills.
• Must be based in the United States.

Preferred Qualifications:

• Experience with Spring Boot and REST APIs.
• Experience with other AWS services such as API Gateway, DynamoDB, S3, SQS/SNS and Step Functions.
• Infrastructure-as-code experience (CloudFormation, CDK or Terraform).
• AWS certification.

Benefits:

• Health Insurance.
• Dental Insurance.
• Vision Insurance.
• 401(k) + 401(k) matching.
• Paid time off.
• Referral Program.

About ZipStaff:

ZipStaff connects skilled technology professionals with leading organizations across the United States, matching top talent with impactful contract and full-time opportunities.