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Sr. Java/Springboot Developer

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Onsite

Sr. Java/Springboot Developer

Hivaa Services LLC

Sr. Java/Springboot Developer

Skills

NodePythonJavaMicroservicesSpring BootGitGraphQLAIFastAPI

3 days ago

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Important information


Contract type:

Freelance / Contract

Location:

Dallas, TX, USA

Work mode:

Onsite

Published on:

17 October 2026

What they need


Job Title: Senior Java / Spring Boot Developer

Locations: Dallas, TX | New York, NY | Chicago, IL

Work Arrangement: Onsite – 5 Days per Week

Job Description

We are seeking a Senior Java Backend Developer with strong expertise in Java, Spring Boot, and scalable backend application development. The ideal candidate will have hands-on experience in performance optimization, CPU and memory management, and backend troubleshooting, along with experience in Node.js or Python FastAPI. Exposure to Generative AI and GraphQL is a plus.

Primary Skills

  • Java Backend Development
  • Spring Boot / Spring Framework
  • RESTful APIs and Microservices
  • Application Performance Optimization
  • CPU Utilization and Memory Management
  • Node.js or Python FastAPI
  • Debugging and Root-Cause Analysis

Key Responsibilities

  • Design, develop, and maintain scalable backend applications using Java and Spring Boot.
  • Build secure, reliable, and high-performance REST APIs and microservices.
  • Identify performance bottlenecks and optimize CPU, memory, and application efficiency.
  • Develop or integrate backend services using Node.js or Python FastAPI.
  • Troubleshoot production issues and perform root-cause analysis.
  • Collaborate with architecture, DevOps, frontend, and product teams.
  • Participate in code reviews, technical design discussions, and architectural decisions.
  • Improve application scalability, reliability, and maintainability.

Required Qualifications

  • Strong hands-on experience in Java and Spring Boot.
  • Solid understanding of backend architecture, REST APIs, and microservices.
  • Experience with CPU/memory optimization and performance tuning.
  • Hands-on experience with Node.js or Python FastAPI.
  • Strong debugging, problem-solving, and analytical skills.
  • Knowledge of software development lifecycle, coding standards, and version control.

Preferred Qualifications

  • Exposure to Generative AI / GenAI technologies.
  • Experience with GraphQL APIs.
  • Familiarity with cloud platforms and cloud-native development.
  • Knowledge of containers, CI/CD pipelines, monitoring, and performance profiling tools.

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