Senior Java Backend Engineer (Spring Boot, Microservices, AWS)

Posted last week

Worldwide

Summary

We are building and enhancing an enterprise-grade backend platform that manages document processing, workflow automation, user authentication, and integrations with cloud storage providers. The platform currently consists of multiple Spring Boot services deployed in the cloud and is actively being expanded with new features, integrations, and performance improvements. We are looking for a Senior Java Backend Engineer who can take ownership of backend components, contribute to architectural decisions, and help us build scalable and secure services. #What You'll Be Working On -Designing and developing new Spring Boot microservices. -Building secure REST APIs consumed by web applications and third-party systems. -Implementing authentication and authorization using OAuth2/JWT. -Integrating with cloud storage services such as AWS S3 and Azure Blob Storage. -Designing database schemas and optimizing complex queries. -Improving application performance, scalability, and reliability. -Developing event-driven workflows and asynchronous processing. -Supporting CI/CD pipelines and cloud-native deployments. -Troubleshooting production issues and performing root-cause analysis. #Technical Environment Backend -Java 17+ -Spring Boot -Spring Security -Spring Data JPA / Hibernate -REST APIs Databases -PostgreSQL -MySQL Cloud & DevOps -AWS -ECS/EKS -S3 -RDS -IAM -Docker -Kubernetes -GitHub Actions Architecture -Microservices -Event-driven processing -API-first design -Distributed systems #Must-Have Experience -7+ years of Java backend development experience. -Strong expertise in Spring Boot and Microservices. -Experience designing scalable REST APIs. -Experience with cloud platforms, preferably AWS. -Strong understanding of authentication, authorization, and application security. -Experience with relational databases and performance tuning. -Experience working with Docker and containerized applications. -Ability to independently own features from design through production deployment. #Nice-to-Have -Azure experience. -Kafka or RabbitMQ experience. -Infrastructure as Code (Terraform/CloudFormation). -Experience migrating applications between cloud providers. -Experience building SaaS products. #What We're Looking For This role is best suited for someone who enjoys solving complex backend problems, writing high-quality code, and contributing to architecture decisions rather than simply implementing tickets. #We value engineers who: -Think like owners. -Communicate clearly. -Can challenge technical decisions when appropriate. -Focus on maintainability, security, and scalability. #Application Instructions Please answer the following: -Describe a Spring Boot microservices project you have worked on recently. -What AWS services have you used in production? -Have you implemented OAuth2, JWT, or SSO? Please provide details. -Have you worked with both AWS and Azure environments? -Describe a backend architecture decision you made that significantly improved system performance or reliability. Start your proposal with "JavaExpert" so we know you have read the complete job description.

  • Less than 30 hrs/week
    Hourly
  • 1-3 months
    Duration
  • Expert
    Experience Level
  • Remote Job
  • Ongoing project
    Project Type

Contract-to-hire opportunity

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Skills and Expertise
Mandatory skills
Docker
GitHub
Java
RESTful API
Activity on this job
  • Proposals:50+
  • Last viewed by client:4 days ago
  • Interviewing:
    2
  • Invites sent:
    2
  • Unanswered invites:
    0
About the client
Member since Jun 21, 2026
  • Canada
    12:17 AM

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