Java Software Engineer III

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 You’ll 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

• 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