JAVA Software Engineer

  •  Reference Number: 408587
  •  Posted: 09/18/2026
  •  Job Type: Contract

Our client, a leader in enterprise technology solutions, is seeking a Senior Software Engineer to join their team. As a Senior Software Engineer, you will be part of the development and modernization efforts supporting critical enterprise applications. The ideal candidate will have strong technical skills, collaborative spirit, and a passion for innovative engineering, which will align successfully in the organization.

Job Title: Senior Software Engineer

Location: Saint Louis, Missouri. Hybrid (4 days onsite per week)
Duration: 12 to 18 months contract

Pay Range: $80/hr - $100/hr on w2 (Pay is flexible for right candidate)

Looking for candidates who are local to Missouri

What's the Job?

  • Design and implement microservices using Java/Spring Boot and TypeScript, supporting event-driven and RESTful integration patterns.
  • Build solutions leveraging AWS GovCloud services, including ECS/EKS, Lambda, EventBridge, and RDS, within microservices and micro-frontend architecture.
  • Address technical debt by upgrading outdated dependencies and frameworks.
  • Ensure comprehensive test automation using UI testing and behavior-driven development (BDD) approaches.
  • Collaborate with enterprise architects and scrum teams to translate architectural vision into scalable solutions.

What's Needed?

  • 5+ years of software engineering experience with hands-on development expertise.
  • Advanced proficiency in Java and Spring Boot ecosystem.
  • Experience in AWS Cloud, including ECS/EKS, Lambda, RDS/Aurora, and infrastructure-as-code tools such as CDK or CloudFormation.
  • Experience with Angular; familiarity with micro-frontend architecture (module federation) is a plus.
  • Strong technical writing and communication skills, with the ability to document designs and articulate complex ideas clearly.

What's in it for me?

  • Opportunity to work on mission-critical enterprise applications in a cloud environment.
  • Engagement in innovative projects utilizing the latest AWS services and microservices architecture.
  • Collaborative and dynamic work environment supporting professional growth.
  • Chance to contribute to modernization efforts and reduce technical debt.
  • Work remotely with flexible arrangements, depending on skill set and project needs.

Upon completion of waiting period consultants are eligible for:

  • Medical and Prescription Drug Plans
  • Dental Plan
  • Vision Plan
  • 401(k), Plus Match
  • Weekly Pay

If this is a role that interests you and you'd like to learn more, click apply now and a recruiter will be in touch with you to discuss this great opportunity. We look forward to speaking with you!

About ManpowerGroup, Parent Company of: Manpower, Experis and Talent Solutions.

Experis® is a global leader in technology services and part of the ManpowerGroup® (NYSE: MAN) family of brands. We connect skilled technology professionals with meaningful opportunities where they can grow their careers, expand their expertise and make a real impact. Guided by the belief that it takes Human Ingenuity to unlock the true potential of technology, Experis helps people gain experience with leading organizations, build sought-after skills and take the next step toward a brighter future. Backed by ManpowerGroup's 75+ years of workforce expertise and global reach across more than 70 countries and territories, Experis brings the scale, insight and opportunity to help people and businesses thrive. ManpowerGroup is consistently recognized for its commitment to inclusion, ethics and responsible business, including being named one of the World's Most Ethical Companies. Learn more at Experis.com.

St. Louis, MO

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An Experis consultant

"Communication, instructions, expectations and follow-through were exceptional, throughout the hiring, interviewing and onboarding process. Thank you, Experis!"