Java Developer Sr.

Coderio; United States; Remote; USD 130,000 - 180,000; Full time

Job summary

Coderio Software Company is assembling a new backend squad to support a top US banking client. This 100% remote role requires aligning with US Eastern Time and working from LATAM.

You will build scalable cloud-native services in Java 21, Spring, Kafka, AWS, and modern tooling, with emphasis on reliability, security, and AI-enabled workflows.

Candidates fluent in English, experienced in microservices and event-driven architectures, are invited to apply.

Qualifications

• 7+ years of backend Java experience.
• LATAM location with remote work and EST overlap.
• Advanced English communication.
• Spring Boot, Spring Cloud and Kafka expertise.
• AWS production experience (DynamoDB, SQS/SNS, Lambda, IAM, RDS).
• Event-driven microservices with cloud-native patterns.

Responsibilities

• Design, build, test, and deploy Spring Boot microservices.
• Implement async messaging and distributed transactions with Kafka.
• Design/consume REST APIs, webhooks, and subscription APIs.
• Develop CI/CD pipelines and IaC for AWS environments.
• Use observability tools (New Relic, Datadog, OpenTelemetry).
• Integrate AI components and agentic workflows with governance.

Skills

Java

Spring Boot

Spring Cloud

Microservices

Apache Kafka

AWS

CI/CD

Test Automation

JVM

AI-assisted development

Tools

Docker

Kubernetes

Terraform

CloudFormation

CDK

Temporal

Camunda

AWS Step Functions

OpenTelemetry

New Relic

Job description

Work Scheme: 100% Remote (EST Time Zone alignment)

English Level: Advanced / Fluent

Client Industry: US Banking (Based in Miami)

About the Role:

At Coderio Software Company, we are creating a new squad to work with one of our top clients in the US banking industry, based in Miami. You'll be working 100% remotely on high-impact backend systems using Java 21, AWS, Apache Kafka, and event-driven microservices, helping to build scalable, cloud-native solutions in a modern engineering environment.

Responsibilities:

• 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.

Requirements:

• Language: Advanced English proficiency (written and spoken) is mandatory. You will be communicating daily with US-based stakeholders.
• Technical Foundation: Senior level with 7+ years of experience building backend services in Java (with strong expertise in modern versions like Java 21) and at least 2+ years specifically in microservices and event-driven systems.
• Stack & Messaging Expertise: Deep, hands-on mastery of Java with strong OOP and concurrency fundamentals, alongside production experience in Spring Boot, Spring Cloud, and solid, proven experience with Apache Kafka (event streaming, partitions, consumer groups, etc.).
• Stack Expertise: Deep, hands-on mastery of Java 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 Latin America (LATAM) and available to work 100% remotely, overlapping with US Eastern Time (EST) business hours.

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