Freelance Java Backend Developer (Spring Boot & AWS)

Company Description

ThreatXIntel is a startup cyber security company that offers customized and affordable solutions to protect businesses and organizations from cyber threats. Our team of professionals specializes in cloud security, web and mobile security testing, cloud security assessment, and DevSecOps services. We take a proactive approach to security by continuously monitoring and testing digital environments to identify vulnerabilities before they can be exploited.

Role Description

Java Backend Developer

Key Responsibilities

• Develop, enhance, and maintain backend APIs using

  Java

  and

  Spring Boot

  .
• Design and implement RESTful services and microservices architectures.
• Deploy and manage backend applications on

  AWS

  (EC2, ECS, Lambda, API Gateway, RDS, S3, etc.).
• Write unit and integration tests to ensure code quality.
• Optimize application performance and troubleshoot production issues.
• Collaborate with frontend developers, DevOps, and QA teams.
• Maintain code repositories and follow best practices for version control and CI/CD.

Required Skills & Experience

• 5+ years of experience in

  Java backend development

  .
• Strong hands-on experience with

  Spring Boot

  (REST APIs, Spring Data JPA, Spring Security).
• Proficiency with

  AWS services

  like EC2, Lambda, API Gateway, S3, and RDS.
• Experience in relational databases (MySQL, PostgreSQL) and ORM frameworks.
• Familiarity with CI/CD pipelines using AWS CodePipeline, Jenkins, or similar tools.
• Strong understanding of microservices and containerization (Docker, ECS/EKS).
• Good problem-solving skills and debugging experience.

Nice-to-Have Skills

• AWS certification (Developer Associate / Solutions Architect).
• Experience with messaging queues (SQS, Kafka, RabbitMQ).
• Knowledge of AWS CloudFormation or Terraform for IaC.