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Vaspire Technologies Inc Logo
Sr Java Developer

Vaspire Technologies Inc

 

Walnut Creek, CA, USA

Posted On: 11 days ago
Experience: 5+ years
Availability: Hybrid
Openings: 1
Category: Sr Java Developer
Tenure: Contract - Corp-to-Corp
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Description

  • Lead end-to-end delivery of features across backend services, APIs, UI, and integrations
  • Architect and review solutions in a large Maven multi-module Java/Spring application
  • Guide evolution of the platform: legacy server-rendered UI alongside modern React, APIs, and batch jobs
  • Own or partner on AWS deployment and reliability for containerized Tomcat services (ECS, CDK pipelines, secrets, observability)
  • Mentor engineers, set coding standards, drive design reviews, and improve CI/CD and release quality
  • Partner with product and stakeholders on external integrations.
  • Diagnose production issues across application, database, and infrastructure layers; strengthen monitoring and runbooks
  • Optionally lead or contribute to AI-agent initiatives that automate workflows, data handling, or developer productivity

Required qualifications

  • 2+ years in a lead / staff / tech-lead capacity
  • Deep expertise in Java (Java 8+; comfort with large enterprise codebases)
  • Strong hands-on experience with Spring (MVC, Security, Batch, SOAP/REST), Hibernate/JPA, and relational data modeling
  • Solid SQL / MySQL skills: schema design, query tuning, transactional integrity
  • Experience with Maven, multi-module builds, and Tomcat (or similar Java app servers)
  • Proven AWS experience in production: ideally ECS/Fargate, ECR, ALB, Secrets Manager / SSM, S3, CloudWatch, and IaC (CDK, CloudFormation, or Terraform)
  • React (or similar SPA) experience — Vite, Redux/RTK, Material UI a plus
  • Experience modernizing or maintaining legacy enterprise systems while delivering incremental improvements safely
  • Strong design, debugging, and communication skills; ability to lead without blocking the team

Preferred qualifications

  • Observability: Datadog, structured logging, APM, on-call practices
  • Docker, CI/CD (Jenkins, CodePipeline/CodeBuild), artifact registries (CodeArtifact/Nexus)
  • AI agent building experience (plus): Tool-calling agents, MCP, or workflow automation agents applied to enterprise systems

Education

Bachelor's degree

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