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# Sr Java Backend Developer

- **Company:** Coderio, LLC
- **Location:** Coral Gables, FL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Cloud Engineering, Code Generation, Distributed Systems, Amazon DynamoDB, Identity and Access Management, Junit, Object-Oriented Software Development, Software Architecture, Mockito, Microsoft Copilot, Software Safety, Amazon Simple Notification Service (SNS), Management of Software Versions, Datadog, Data Logging, Spring Cloud, Retrieval-Augmented Generation, Large Language Models, Claude Code, Prompt Engineering, Spring-boot, Backend, Agentic-AI, Cloudformation, Event Driven Architecture, Integration Tests, Kubernetes, ISO 20022 Standard, Machine Learning Operations, Api Design, Api Gateway, Restful APIs, Model Context Protocol, Amazon Simple Queue Service (SQS), Terraform, New Relic (SaaS), Webhooks, Api Management, Docker, Microservices
- **Published:** October 8, 2026
- **Apply:** https://www.disabledperson.com/jobs/75880511-sr-java-backend-developer

## About the Role

* Technical Foundation: Senior level with 6+ years of experience building backend services in Java 21 and at least 2+ years specifically in microservices and event-driven systems.
 * Stack Expertise: Deep, hands-on mastery of Java 21 with strong OOP and concurrency fundamentals, alongside production experience in Spring Boot and Spring Cloud.
 * Cloud Architecture: Solid, demonstrable production experience with AWS services including DynamoDB, Kinesis, SQS, SNS, KMS, API Gateway, ECS/EKS, Lambda, IAM, and RDS.
 * AI Proficiency: Fluency with AI-assisted development (like Claude Code or Copilot) with the critical judgment to review AI-generated code.
 * Testing Discipline: Solid testing discipline utilizing JUnit, Mockito, and integration testing.
 * Location & Engagement: Must be located in the Miami / Fort Lauderdale area and available to work 100% on-site for a contract engagement.

Nice to Have:

 * Financial services or payments domain experience, specifically with payment messaging standards such as ISO 20022 and the legacy FAIM (Fedwire) format.
 * Experience with containers and orchestration (Docker, Kubernetes).
 * Hands-on experience with Infrastructure as Code (Terraform, CloudFormation, or CDK).
 * Experience with workflow and orchestration engines such as Temporal, Camunda, or AWS Step Functions.
 * Advanced AI skills: vector stores/RAG, prompt engineering, and AI observability.

Offer valid for W2 or 1099 contracts. Coderio does not offer sponsorships.

## Description

* Backend Architecture & Execution: Design, build, test, and deploy Spring Boot microservices following strict team standards. You will own your code from design to production.
 * Distributed Systems & Event-Driven Flows: Implement publish/subscribe async messaging and handle distributed transactions using saga or orchestration patterns.
 * API Design & Integration: Design and consume REST APIs, webhooks, and subscription APIs, while actively contributing to API contracts and versioning.
 * Cloud-Native Engineering: Build and maintain CI/CD pipelines and infrastructure-as-code for your services, operating heavily on AWS.
 * Operational Excellence: Diagnose and resolve issues across distributed services utilizing observability tools like New Relic, Datadog, or OpenTelemetry for logging, tracing, and metrics.
 * Advanced AI & Agentic Workflows: Integrate LLMs into services (function/tool calling, structured outputs, and the Model Context Protocol) and build agentic workflows, ensuring AI safety and governance (guardrails, PII/PCI handling) in a regulated setting.