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Freelance Java Backend Developer Jobs in Florida

We are looking for a Senior Java Microservices Developer for a contract engagement. You will own ... Backend Architecture & Execution: Design, build, test, and deploy Spring Boot microservices ...

Sr Java Backend (Miami Lakes)

Miami, FL · On-site

$115K - $149K/yr

We are looking for a Senior Java Microservices Developer for a contract engagement. You will own ... Backend Architecture & Execution: Design, build, test, and deploy Spring Boot microservices ...

Sr Java Backend (Miami Lakes)

Miami, FL

$115K - $149K/yr

We are looking for a Senior Java Microservices Developer for a contract engagement. You will own ... Backend Architecture & Execution: Design, build, test, and deploy Spring Boot microservices ...

Senior Back-End Developer

Miami, FL · On-site

$159K - $176K/yr

Rumble is seeking a Senior Back-End Developer to design, build, and maintain high-performance server-side systems that power a large-scale video platform serving millions of users. This is a senior ...

Senior Back-End Developer

Fort Myers, FL · On-site

$112K - $146K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

CLA is growing and seeking to hire an experienced Senior Back-End Developer to join our talented Information Technology team. The position offers growth, flexibility and a collaborative work ...

Sr Backend Java Developer

Tampa, FL · On-site

$113K - $147K/yr

Role: Sr Backend Java Developer Location: Tampa, FL Duration: 6 months C2H Rate: Market Need only W2 consultants Interview: Video round followed by F2F Project: * Modernization - re-write mainframe ...

NAVA Software is looking for a Backend Software Engineer Details: Back-End Software Engineers ... one of Java, Kotlin, Scala), understand the importance of scalability and reliability and are ...

Java Developer

Sunrise, FL · On-site

$48.75 - $63/hr

Java Developer Location: Sunrise, FL Duration: 6+ Months Description: Client seeking a Java ... The position involves back-end microservice development to support enterprise portal functionality.

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Freelance Java Backend Developer information

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FullStack React Java Developer

Inficare Technologies

Sunrise, FL • On-site

$51.75 - $66.75/hr

Full-time

Posted 4 days ago


Job description

Job Title: FullStack React Java Developer
Location: Sunrise, FL (Local candidates preferred)
Job Type: Contract
Experience: 5+ years
Job Overview
Our client is seeking an experienced FullStack Developer with strong proficiency in both Java backend and React frontend technologies. The ideal candidate will build scalable, secure, and performant enterprise applications in a collaborative agile environment.
Key Responsibilities
  • Design and develop RESTful APIs and backend services using Java 17 and Spring Boot
  • Build scalable, reusable React components with performance optimisations
  • Implement secure API integrations using OAuth2, JWT, and RBAC
  • Integrate with relational and non-relational databases
  • Support event-driven architecture using Kafka
  • Monitor and ensure application observability using Splunk or ELK stack
Required Skills
  • Java: Core Java, Java 17, Streams, Lambda, Threads, Concurrency, SOLID, OOP
  • Spring Ecosystem: Spring Boot, Hibernate, Spring Security
  • Security: OAuth2, JWT, RBAC, token-based access control
  • Databases: SQL, PostgreSQL, MongoDB, Cassandra
  • Messaging: Kafka (event-driven architecture)
  • React: Hooks (useState, useEffect, useContext, useMemo, useRef), Redux, Context API, React Router v6
  • Performance: Lazy loading, Suspense, code splitting
Preferred Skills
  • Spring MVC, Spring AOP, Spring Web Flux, Spring Batch
  • Design patterns: Singleton, Factory
  • Monitoring: Splunk, ELK
  • AI/ML integration experience (OpenAI, GitHub Copilot, ChatGPT)
  • Frontend security via Role Based Access Control
Location & Work Model
Sunrise, FL - local candidates strongly preferred.
Engagement Details
Contract engagement. Please reach out with your updated resume and availability to discuss further.