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Sr. Java Software Engineer III


Job Location:

Buffalo, IA - USA

Hourly Salary: USD 80 - 88
Posted: 4 September 2026 (18 hours ago)
Application Deadline: 2 December 2026
Vacancies: 1 Vacancy

Job Summary

Lighthouse Technology Services is partnering with our client to fill their Sr. Java Software Engineer III position! This is a 12 month contract and will be hybrid in Buffalo NY.


This role will be a W2 employee of Lighthouse Technology Services. No C2C or subcontracting arrangements will be considered.


What Youll Be Doing:

  • Lead complex systems analysis design and development efforts for enterprise Java applications
  • Serve as principal application designer for critical components and major modifications
  • Direct and mentor less experienced engineers coordinating development tasks across projects
  • Design and build scalable REST APIs and microservices using Java and Spring Boot
  • Drive SaaS migration initiatives implementing OAuth 2.0 retries idempotency and reconciliation logic
  • Develop and deploy solutions within Azure incorporating security observability and resiliency best practices
  • Manage CI/CD pipelines and Infrastructure as Code (IaC) to streamline delivery
  • Prepare technical specifications test plans and documentation for complex initiatives
  • Evaluate vendor software and recommend new technologies to improve system performance
  • Ensure adherence to development standards risk protocols and regulatory requirements


What Youll Need to Have:

  • 6 years of systems analysis and application development experience
  • Advanced proficiency in Java Spring Boot and REST API development
  • Strong understanding of concurrency performance tuning and enterprise-grade testing practices
  • Proven experience with Azure cloud development including security observability and resiliency
  • Hands-on experience with CI/CD pipelines and Infrastructure as Code (IaC)
  • Demonstrated expertise in enterprise API design including OAuth 2.0 retries and idempotency
  • Experience supporting SaaS migrations including data validation and reconciliation processes
  • Proven mentoring and leadership capabilities within a technical project environment


Pay Range: $80-88/hr


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Required Experience:

Senior IC